mirror of
https://github.com/xemu-project/xemu.git
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81ab11a7a5
kvmclock fix. This was reverted last minute for 2.1, but it is now back with the problematic case fixed. Note: I will soon switch to a subkey for signing purposes. To verify future signed pull requests from me, please update my key with "gpg --recv-keys 9B4D86F2". You should see 3 new subkeys---the one for signing will be a 2048-bit RSA key, 4E6B09D7. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAABAgAGBQJUJXmEAAoJEBvWZb6bTYbyuZoP+gJScjcoHVL27YL6GqCsLzQ+ swk/6TDaboR5+t3Tt1vHOWOvtXmoZlxp+sQU50ltiKS1mwRTsMAhEeTInTNPLJ6z aKX46QdvNib2bYdUgnl8nqOiKQAZiA6rR8os2lWJ3E8n1n6qBbeWwneQK2YvRaVf RMjmDm7sjhZt5h868O7SPNDSjk8k5TgYj5MOsDugFxQr6JXGxt8xmB+Ml6v6Ne+y ufDchXtBhANIkr1aNMeOBYdX+/wuY+fltjnG11xpuAL1a63F/b3EGvPoqUHQCZSd PzHmkSZV0z3rmgVTpcAHxSw2MxUEgmXLvxWAQTahrzGUi8mH3hF7z7zNqfULZWa1 3hctUdlf9aWbIgdfEdBZqOjol58TYvgCjIa7W2upsvEf7sjctpCZnMmBi8vMM3FQ qv7S4139jN70+7zNY8CCnXPuOY63rsFTAs8XCPF7DL3HESzm7x8MEFgW7/7iJtwQ PNJVbJX8+FpDmdAy/fwkMKA8BvjmNBuIZrr9/IfFJ6uM70//brq3OXq25agToBpZ QYWW5CXYeQXurPBK1Q6XkGx61mNuc5zOveVS+8MhJKw9SiL/cIhQzrh3fgFtIP+e 63LlufFPMA2+fhBJctptIoU9+XeUwalQic92ZqepuXB/OZV6vhhV9/K2zZMUMpl9 B/Gg3cd1w5rMHg6O2kov =nP/e -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging Usual mix of patches, the most important being Alex and Marcelo's kvmclock fix. This was reverted last minute for 2.1, but it is now back with the problematic case fixed. Note: I will soon switch to a subkey for signing purposes. To verify future signed pull requests from me, please update my key with "gpg --recv-keys 9B4D86F2". You should see 3 new subkeys---the one for signing will be a 2048-bit RSA key, 4E6B09D7. # gpg: Signature made Fri 26 Sep 2014 15:34:44 BST using RSA key ID 9B4D86F2 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: kvm/valgrind: don't mark memory as initialized po: fix conflict with %.mo rule in rules.mak kvmvapic: fix migration when VM paused and when not running Windows serial: check if backed by a physical serial port at realize time serial: reset state at startup target-i386: update fp status fix hw/dma/i8257: Silence phony error message kvmclock: Ensure time in migration never goes backward kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation Introduce cpu_clean_all_dirty pit: fix pit interrupt can't inject into vm after migration Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2974 lines
97 KiB
C
2974 lines
97 KiB
C
/*
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* i386 CPUID helper functions
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <inttypes.h>
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#include "cpu.h"
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#include "sysemu/kvm.h"
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#include "sysemu/cpus.h"
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#include "kvm_i386.h"
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#include "topology.h"
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#include "qemu/option.h"
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#include "qemu/config-file.h"
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#include "qapi/qmp/qerror.h"
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#include "qapi-types.h"
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#include "qapi-visit.h"
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#include "qapi/visitor.h"
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#include "sysemu/arch_init.h"
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#include "hw/hw.h"
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#if defined(CONFIG_KVM)
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#include <linux/kvm_para.h>
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#endif
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#include "sysemu/sysemu.h"
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#include "hw/qdev-properties.h"
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#include "hw/cpu/icc_bus.h"
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#ifndef CONFIG_USER_ONLY
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#include "hw/xen/xen.h"
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#include "hw/i386/apic_internal.h"
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#endif
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/* Cache topology CPUID constants: */
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/* CPUID Leaf 2 Descriptors */
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#define CPUID_2_L1D_32KB_8WAY_64B 0x2c
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#define CPUID_2_L1I_32KB_8WAY_64B 0x30
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#define CPUID_2_L2_2MB_8WAY_64B 0x7d
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/* CPUID Leaf 4 constants: */
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/* EAX: */
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#define CPUID_4_TYPE_DCACHE 1
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#define CPUID_4_TYPE_ICACHE 2
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#define CPUID_4_TYPE_UNIFIED 3
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#define CPUID_4_LEVEL(l) ((l) << 5)
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#define CPUID_4_SELF_INIT_LEVEL (1 << 8)
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#define CPUID_4_FULLY_ASSOC (1 << 9)
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/* EDX: */
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#define CPUID_4_NO_INVD_SHARING (1 << 0)
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#define CPUID_4_INCLUSIVE (1 << 1)
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#define CPUID_4_COMPLEX_IDX (1 << 2)
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#define ASSOC_FULL 0xFF
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/* AMD associativity encoding used on CPUID Leaf 0x80000006: */
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#define AMD_ENC_ASSOC(a) (a <= 1 ? a : \
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a == 2 ? 0x2 : \
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a == 4 ? 0x4 : \
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a == 8 ? 0x6 : \
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a == 16 ? 0x8 : \
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a == 32 ? 0xA : \
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a == 48 ? 0xB : \
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a == 64 ? 0xC : \
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a == 96 ? 0xD : \
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a == 128 ? 0xE : \
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a == ASSOC_FULL ? 0xF : \
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0 /* invalid value */)
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/* Definitions of the hardcoded cache entries we expose: */
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/* L1 data cache: */
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#define L1D_LINE_SIZE 64
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#define L1D_ASSOCIATIVITY 8
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#define L1D_SETS 64
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#define L1D_PARTITIONS 1
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/* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 32KiB */
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#define L1D_DESCRIPTOR CPUID_2_L1D_32KB_8WAY_64B
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/*FIXME: CPUID leaf 0x80000005 is inconsistent with leaves 2 & 4 */
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#define L1D_LINES_PER_TAG 1
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#define L1D_SIZE_KB_AMD 64
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#define L1D_ASSOCIATIVITY_AMD 2
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/* L1 instruction cache: */
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#define L1I_LINE_SIZE 64
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#define L1I_ASSOCIATIVITY 8
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#define L1I_SETS 64
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#define L1I_PARTITIONS 1
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/* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 32KiB */
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#define L1I_DESCRIPTOR CPUID_2_L1I_32KB_8WAY_64B
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/*FIXME: CPUID leaf 0x80000005 is inconsistent with leaves 2 & 4 */
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#define L1I_LINES_PER_TAG 1
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#define L1I_SIZE_KB_AMD 64
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#define L1I_ASSOCIATIVITY_AMD 2
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/* Level 2 unified cache: */
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#define L2_LINE_SIZE 64
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#define L2_ASSOCIATIVITY 16
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#define L2_SETS 4096
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#define L2_PARTITIONS 1
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/* Size = LINE_SIZE*ASSOCIATIVITY*SETS*PARTITIONS = 4MiB */
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/*FIXME: CPUID leaf 2 descriptor is inconsistent with CPUID leaf 4 */
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#define L2_DESCRIPTOR CPUID_2_L2_2MB_8WAY_64B
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/*FIXME: CPUID leaf 0x80000006 is inconsistent with leaves 2 & 4 */
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#define L2_LINES_PER_TAG 1
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#define L2_SIZE_KB_AMD 512
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/* No L3 cache: */
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#define L3_SIZE_KB 0 /* disabled */
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#define L3_ASSOCIATIVITY 0 /* disabled */
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#define L3_LINES_PER_TAG 0 /* disabled */
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#define L3_LINE_SIZE 0 /* disabled */
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/* TLB definitions: */
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#define L1_DTLB_2M_ASSOC 1
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#define L1_DTLB_2M_ENTRIES 255
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#define L1_DTLB_4K_ASSOC 1
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#define L1_DTLB_4K_ENTRIES 255
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#define L1_ITLB_2M_ASSOC 1
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#define L1_ITLB_2M_ENTRIES 255
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#define L1_ITLB_4K_ASSOC 1
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#define L1_ITLB_4K_ENTRIES 255
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#define L2_DTLB_2M_ASSOC 0 /* disabled */
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#define L2_DTLB_2M_ENTRIES 0 /* disabled */
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#define L2_DTLB_4K_ASSOC 4
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#define L2_DTLB_4K_ENTRIES 512
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#define L2_ITLB_2M_ASSOC 0 /* disabled */
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#define L2_ITLB_2M_ENTRIES 0 /* disabled */
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#define L2_ITLB_4K_ASSOC 4
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#define L2_ITLB_4K_ENTRIES 512
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static void x86_cpu_vendor_words2str(char *dst, uint32_t vendor1,
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uint32_t vendor2, uint32_t vendor3)
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{
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int i;
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for (i = 0; i < 4; i++) {
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dst[i] = vendor1 >> (8 * i);
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dst[i + 4] = vendor2 >> (8 * i);
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dst[i + 8] = vendor3 >> (8 * i);
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}
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dst[CPUID_VENDOR_SZ] = '\0';
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}
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/* feature flags taken from "Intel Processor Identification and the CPUID
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* Instruction" and AMD's "CPUID Specification". In cases of disagreement
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* between feature naming conventions, aliases may be added.
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*/
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static const char *feature_name[] = {
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"fpu", "vme", "de", "pse",
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"tsc", "msr", "pae", "mce",
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"cx8", "apic", NULL, "sep",
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"mtrr", "pge", "mca", "cmov",
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"pat", "pse36", "pn" /* Intel psn */, "clflush" /* Intel clfsh */,
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NULL, "ds" /* Intel dts */, "acpi", "mmx",
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"fxsr", "sse", "sse2", "ss",
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"ht" /* Intel htt */, "tm", "ia64", "pbe",
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};
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static const char *ext_feature_name[] = {
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"pni|sse3" /* Intel,AMD sse3 */, "pclmulqdq|pclmuldq", "dtes64", "monitor",
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"ds_cpl", "vmx", "smx", "est",
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"tm2", "ssse3", "cid", NULL,
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"fma", "cx16", "xtpr", "pdcm",
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NULL, "pcid", "dca", "sse4.1|sse4_1",
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"sse4.2|sse4_2", "x2apic", "movbe", "popcnt",
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"tsc-deadline", "aes", "xsave", "osxsave",
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"avx", "f16c", "rdrand", "hypervisor",
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};
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/* Feature names that are already defined on feature_name[] but are set on
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* CPUID[8000_0001].EDX on AMD CPUs don't have their names on
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* ext2_feature_name[]. They are copied automatically to cpuid_ext2_features
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* if and only if CPU vendor is AMD.
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*/
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static const char *ext2_feature_name[] = {
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NULL /* fpu */, NULL /* vme */, NULL /* de */, NULL /* pse */,
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NULL /* tsc */, NULL /* msr */, NULL /* pae */, NULL /* mce */,
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NULL /* cx8 */ /* AMD CMPXCHG8B */, NULL /* apic */, NULL, "syscall",
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NULL /* mtrr */, NULL /* pge */, NULL /* mca */, NULL /* cmov */,
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NULL /* pat */, NULL /* pse36 */, NULL, NULL /* Linux mp */,
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"nx|xd", NULL, "mmxext", NULL /* mmx */,
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NULL /* fxsr */, "fxsr_opt|ffxsr", "pdpe1gb" /* AMD Page1GB */, "rdtscp",
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NULL, "lm|i64", "3dnowext", "3dnow",
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};
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static const char *ext3_feature_name[] = {
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"lahf_lm" /* AMD LahfSahf */, "cmp_legacy", "svm", "extapic" /* AMD ExtApicSpace */,
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"cr8legacy" /* AMD AltMovCr8 */, "abm", "sse4a", "misalignsse",
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"3dnowprefetch", "osvw", "ibs", "xop",
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"skinit", "wdt", NULL, "lwp",
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"fma4", "tce", NULL, "nodeid_msr",
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NULL, "tbm", "topoext", "perfctr_core",
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"perfctr_nb", NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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};
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static const char *ext4_feature_name[] = {
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NULL, NULL, "xstore", "xstore-en",
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NULL, NULL, "xcrypt", "xcrypt-en",
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"ace2", "ace2-en", "phe", "phe-en",
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"pmm", "pmm-en", NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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};
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static const char *kvm_feature_name[] = {
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"kvmclock", "kvm_nopiodelay", "kvm_mmu", "kvmclock",
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"kvm_asyncpf", "kvm_steal_time", "kvm_pv_eoi", "kvm_pv_unhalt",
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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"kvmclock-stable-bit", NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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};
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static const char *svm_feature_name[] = {
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"npt", "lbrv", "svm_lock", "nrip_save",
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"tsc_scale", "vmcb_clean", "flushbyasid", "decodeassists",
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NULL, NULL, "pause_filter", NULL,
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"pfthreshold", NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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};
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static const char *cpuid_7_0_ebx_feature_name[] = {
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"fsgsbase", "tsc_adjust", NULL, "bmi1", "hle", "avx2", NULL, "smep",
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"bmi2", "erms", "invpcid", "rtm", NULL, NULL, "mpx", NULL,
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NULL, NULL, "rdseed", "adx", "smap", NULL, NULL, NULL,
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NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
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};
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static const char *cpuid_apm_edx_feature_name[] = {
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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"invtsc", NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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NULL, NULL, NULL, NULL,
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};
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#define I486_FEATURES (CPUID_FP87 | CPUID_VME | CPUID_PSE)
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#define PENTIUM_FEATURES (I486_FEATURES | CPUID_DE | CPUID_TSC | \
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CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_MMX | CPUID_APIC)
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#define PENTIUM2_FEATURES (PENTIUM_FEATURES | CPUID_PAE | CPUID_SEP | \
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CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
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CPUID_PSE36 | CPUID_FXSR)
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#define PENTIUM3_FEATURES (PENTIUM2_FEATURES | CPUID_SSE)
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#define PPRO_FEATURES (CPUID_FP87 | CPUID_DE | CPUID_PSE | CPUID_TSC | \
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CPUID_MSR | CPUID_MCE | CPUID_CX8 | CPUID_PGE | CPUID_CMOV | \
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CPUID_PAT | CPUID_FXSR | CPUID_MMX | CPUID_SSE | CPUID_SSE2 | \
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CPUID_PAE | CPUID_SEP | CPUID_APIC)
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#define TCG_FEATURES (CPUID_FP87 | CPUID_PSE | CPUID_TSC | CPUID_MSR | \
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CPUID_PAE | CPUID_MCE | CPUID_CX8 | CPUID_APIC | CPUID_SEP | \
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CPUID_MTRR | CPUID_PGE | CPUID_MCA | CPUID_CMOV | CPUID_PAT | \
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CPUID_PSE36 | CPUID_CLFLUSH | CPUID_ACPI | CPUID_MMX | \
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CPUID_FXSR | CPUID_SSE | CPUID_SSE2 | CPUID_SS)
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/* partly implemented:
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CPUID_MTRR, CPUID_MCA, CPUID_CLFLUSH (needed for Win64) */
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/* missing:
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CPUID_VME, CPUID_DTS, CPUID_SS, CPUID_HT, CPUID_TM, CPUID_PBE */
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#define TCG_EXT_FEATURES (CPUID_EXT_SSE3 | CPUID_EXT_PCLMULQDQ | \
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CPUID_EXT_MONITOR | CPUID_EXT_SSSE3 | CPUID_EXT_CX16 | \
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CPUID_EXT_SSE41 | CPUID_EXT_SSE42 | CPUID_EXT_POPCNT | \
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CPUID_EXT_MOVBE | CPUID_EXT_AES | CPUID_EXT_HYPERVISOR)
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/* missing:
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CPUID_EXT_DTES64, CPUID_EXT_DSCPL, CPUID_EXT_VMX, CPUID_EXT_SMX,
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CPUID_EXT_EST, CPUID_EXT_TM2, CPUID_EXT_CID, CPUID_EXT_FMA,
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CPUID_EXT_XTPR, CPUID_EXT_PDCM, CPUID_EXT_PCID, CPUID_EXT_DCA,
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CPUID_EXT_X2APIC, CPUID_EXT_TSC_DEADLINE_TIMER, CPUID_EXT_XSAVE,
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CPUID_EXT_OSXSAVE, CPUID_EXT_AVX, CPUID_EXT_F16C,
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CPUID_EXT_RDRAND */
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#ifdef TARGET_X86_64
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#define TCG_EXT2_X86_64_FEATURES (CPUID_EXT2_SYSCALL | CPUID_EXT2_LM)
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#else
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#define TCG_EXT2_X86_64_FEATURES 0
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#endif
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#define TCG_EXT2_FEATURES ((TCG_FEATURES & CPUID_EXT2_AMD_ALIASES) | \
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CPUID_EXT2_NX | CPUID_EXT2_MMXEXT | CPUID_EXT2_RDTSCP | \
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CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_PDPE1GB | \
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TCG_EXT2_X86_64_FEATURES)
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#define TCG_EXT3_FEATURES (CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM | \
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CPUID_EXT3_CR8LEG | CPUID_EXT3_ABM | CPUID_EXT3_SSE4A)
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#define TCG_EXT4_FEATURES 0
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#define TCG_SVM_FEATURES 0
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#define TCG_KVM_FEATURES 0
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#define TCG_7_0_EBX_FEATURES (CPUID_7_0_EBX_SMEP | CPUID_7_0_EBX_SMAP | \
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CPUID_7_0_EBX_BMI1 | CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ADX)
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/* missing:
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CPUID_7_0_EBX_FSGSBASE, CPUID_7_0_EBX_HLE, CPUID_7_0_EBX_AVX2,
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CPUID_7_0_EBX_ERMS, CPUID_7_0_EBX_INVPCID, CPUID_7_0_EBX_RTM,
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CPUID_7_0_EBX_RDSEED */
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#define TCG_APM_FEATURES 0
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|
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typedef struct FeatureWordInfo {
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const char **feat_names;
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uint32_t cpuid_eax; /* Input EAX for CPUID */
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bool cpuid_needs_ecx; /* CPUID instruction uses ECX as input */
|
|
uint32_t cpuid_ecx; /* Input ECX value for CPUID */
|
|
int cpuid_reg; /* output register (R_* constant) */
|
|
uint32_t tcg_features; /* Feature flags supported by TCG */
|
|
uint32_t unmigratable_flags; /* Feature flags known to be unmigratable */
|
|
} FeatureWordInfo;
|
|
|
|
static FeatureWordInfo feature_word_info[FEATURE_WORDS] = {
|
|
[FEAT_1_EDX] = {
|
|
.feat_names = feature_name,
|
|
.cpuid_eax = 1, .cpuid_reg = R_EDX,
|
|
.tcg_features = TCG_FEATURES,
|
|
},
|
|
[FEAT_1_ECX] = {
|
|
.feat_names = ext_feature_name,
|
|
.cpuid_eax = 1, .cpuid_reg = R_ECX,
|
|
.tcg_features = TCG_EXT_FEATURES,
|
|
},
|
|
[FEAT_8000_0001_EDX] = {
|
|
.feat_names = ext2_feature_name,
|
|
.cpuid_eax = 0x80000001, .cpuid_reg = R_EDX,
|
|
.tcg_features = TCG_EXT2_FEATURES,
|
|
},
|
|
[FEAT_8000_0001_ECX] = {
|
|
.feat_names = ext3_feature_name,
|
|
.cpuid_eax = 0x80000001, .cpuid_reg = R_ECX,
|
|
.tcg_features = TCG_EXT3_FEATURES,
|
|
},
|
|
[FEAT_C000_0001_EDX] = {
|
|
.feat_names = ext4_feature_name,
|
|
.cpuid_eax = 0xC0000001, .cpuid_reg = R_EDX,
|
|
.tcg_features = TCG_EXT4_FEATURES,
|
|
},
|
|
[FEAT_KVM] = {
|
|
.feat_names = kvm_feature_name,
|
|
.cpuid_eax = KVM_CPUID_FEATURES, .cpuid_reg = R_EAX,
|
|
.tcg_features = TCG_KVM_FEATURES,
|
|
},
|
|
[FEAT_SVM] = {
|
|
.feat_names = svm_feature_name,
|
|
.cpuid_eax = 0x8000000A, .cpuid_reg = R_EDX,
|
|
.tcg_features = TCG_SVM_FEATURES,
|
|
},
|
|
[FEAT_7_0_EBX] = {
|
|
.feat_names = cpuid_7_0_ebx_feature_name,
|
|
.cpuid_eax = 7,
|
|
.cpuid_needs_ecx = true, .cpuid_ecx = 0,
|
|
.cpuid_reg = R_EBX,
|
|
.tcg_features = TCG_7_0_EBX_FEATURES,
|
|
},
|
|
[FEAT_8000_0007_EDX] = {
|
|
.feat_names = cpuid_apm_edx_feature_name,
|
|
.cpuid_eax = 0x80000007,
|
|
.cpuid_reg = R_EDX,
|
|
.tcg_features = TCG_APM_FEATURES,
|
|
.unmigratable_flags = CPUID_APM_INVTSC,
|
|
},
|
|
};
|
|
|
|
typedef struct X86RegisterInfo32 {
|
|
/* Name of register */
|
|
const char *name;
|
|
/* QAPI enum value register */
|
|
X86CPURegister32 qapi_enum;
|
|
} X86RegisterInfo32;
|
|
|
|
#define REGISTER(reg) \
|
|
[R_##reg] = { .name = #reg, .qapi_enum = X86_CPU_REGISTER32_##reg }
|
|
static const X86RegisterInfo32 x86_reg_info_32[CPU_NB_REGS32] = {
|
|
REGISTER(EAX),
|
|
REGISTER(ECX),
|
|
REGISTER(EDX),
|
|
REGISTER(EBX),
|
|
REGISTER(ESP),
|
|
REGISTER(EBP),
|
|
REGISTER(ESI),
|
|
REGISTER(EDI),
|
|
};
|
|
#undef REGISTER
|
|
|
|
typedef struct ExtSaveArea {
|
|
uint32_t feature, bits;
|
|
uint32_t offset, size;
|
|
} ExtSaveArea;
|
|
|
|
static const ExtSaveArea ext_save_areas[] = {
|
|
[2] = { .feature = FEAT_1_ECX, .bits = CPUID_EXT_AVX,
|
|
.offset = 0x240, .size = 0x100 },
|
|
[3] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_MPX,
|
|
.offset = 0x3c0, .size = 0x40 },
|
|
[4] = { .feature = FEAT_7_0_EBX, .bits = CPUID_7_0_EBX_MPX,
|
|
.offset = 0x400, .size = 0x40 },
|
|
};
|
|
|
|
const char *get_register_name_32(unsigned int reg)
|
|
{
|
|
if (reg >= CPU_NB_REGS32) {
|
|
return NULL;
|
|
}
|
|
return x86_reg_info_32[reg].name;
|
|
}
|
|
|
|
/* collects per-function cpuid data
|
|
*/
|
|
typedef struct model_features_t {
|
|
uint32_t *guest_feat;
|
|
uint32_t *host_feat;
|
|
FeatureWord feat_word;
|
|
} model_features_t;
|
|
|
|
/* KVM-specific features that are automatically added to all CPU models
|
|
* when KVM is enabled.
|
|
*/
|
|
static uint32_t kvm_default_features[FEATURE_WORDS] = {
|
|
[FEAT_KVM] = (1 << KVM_FEATURE_CLOCKSOURCE) |
|
|
(1 << KVM_FEATURE_NOP_IO_DELAY) |
|
|
(1 << KVM_FEATURE_CLOCKSOURCE2) |
|
|
(1 << KVM_FEATURE_ASYNC_PF) |
|
|
(1 << KVM_FEATURE_STEAL_TIME) |
|
|
(1 << KVM_FEATURE_PV_EOI) |
|
|
(1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT),
|
|
[FEAT_1_ECX] = CPUID_EXT_X2APIC,
|
|
};
|
|
|
|
/* Features that are not added by default to any CPU model when KVM is enabled.
|
|
*/
|
|
static uint32_t kvm_default_unset_features[FEATURE_WORDS] = {
|
|
[FEAT_1_ECX] = CPUID_EXT_MONITOR,
|
|
};
|
|
|
|
void x86_cpu_compat_disable_kvm_features(FeatureWord w, uint32_t features)
|
|
{
|
|
kvm_default_features[w] &= ~features;
|
|
}
|
|
|
|
/*
|
|
* Returns the set of feature flags that are supported and migratable by
|
|
* QEMU, for a given FeatureWord.
|
|
*/
|
|
static uint32_t x86_cpu_get_migratable_flags(FeatureWord w)
|
|
{
|
|
FeatureWordInfo *wi = &feature_word_info[w];
|
|
uint32_t r = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < 32; i++) {
|
|
uint32_t f = 1U << i;
|
|
/* If the feature name is unknown, it is not supported by QEMU yet */
|
|
if (!wi->feat_names[i]) {
|
|
continue;
|
|
}
|
|
/* Skip features known to QEMU, but explicitly marked as unmigratable */
|
|
if (wi->unmigratable_flags & f) {
|
|
continue;
|
|
}
|
|
r |= f;
|
|
}
|
|
return r;
|
|
}
|
|
|
|
void host_cpuid(uint32_t function, uint32_t count,
|
|
uint32_t *eax, uint32_t *ebx, uint32_t *ecx, uint32_t *edx)
|
|
{
|
|
uint32_t vec[4];
|
|
|
|
#ifdef __x86_64__
|
|
asm volatile("cpuid"
|
|
: "=a"(vec[0]), "=b"(vec[1]),
|
|
"=c"(vec[2]), "=d"(vec[3])
|
|
: "0"(function), "c"(count) : "cc");
|
|
#elif defined(__i386__)
|
|
asm volatile("pusha \n\t"
|
|
"cpuid \n\t"
|
|
"mov %%eax, 0(%2) \n\t"
|
|
"mov %%ebx, 4(%2) \n\t"
|
|
"mov %%ecx, 8(%2) \n\t"
|
|
"mov %%edx, 12(%2) \n\t"
|
|
"popa"
|
|
: : "a"(function), "c"(count), "S"(vec)
|
|
: "memory", "cc");
|
|
#else
|
|
abort();
|
|
#endif
|
|
|
|
if (eax)
|
|
*eax = vec[0];
|
|
if (ebx)
|
|
*ebx = vec[1];
|
|
if (ecx)
|
|
*ecx = vec[2];
|
|
if (edx)
|
|
*edx = vec[3];
|
|
}
|
|
|
|
#define iswhite(c) ((c) && ((c) <= ' ' || '~' < (c)))
|
|
|
|
/* general substring compare of *[s1..e1) and *[s2..e2). sx is start of
|
|
* a substring. ex if !NULL points to the first char after a substring,
|
|
* otherwise the string is assumed to sized by a terminating nul.
|
|
* Return lexical ordering of *s1:*s2.
|
|
*/
|
|
static int sstrcmp(const char *s1, const char *e1, const char *s2,
|
|
const char *e2)
|
|
{
|
|
for (;;) {
|
|
if (!*s1 || !*s2 || *s1 != *s2)
|
|
return (*s1 - *s2);
|
|
++s1, ++s2;
|
|
if (s1 == e1 && s2 == e2)
|
|
return (0);
|
|
else if (s1 == e1)
|
|
return (*s2);
|
|
else if (s2 == e2)
|
|
return (*s1);
|
|
}
|
|
}
|
|
|
|
/* compare *[s..e) to *altstr. *altstr may be a simple string or multiple
|
|
* '|' delimited (possibly empty) strings in which case search for a match
|
|
* within the alternatives proceeds left to right. Return 0 for success,
|
|
* non-zero otherwise.
|
|
*/
|
|
static int altcmp(const char *s, const char *e, const char *altstr)
|
|
{
|
|
const char *p, *q;
|
|
|
|
for (q = p = altstr; ; ) {
|
|
while (*p && *p != '|')
|
|
++p;
|
|
if ((q == p && !*s) || (q != p && !sstrcmp(s, e, q, p)))
|
|
return (0);
|
|
if (!*p)
|
|
return (1);
|
|
else
|
|
q = ++p;
|
|
}
|
|
}
|
|
|
|
/* search featureset for flag *[s..e), if found set corresponding bit in
|
|
* *pval and return true, otherwise return false
|
|
*/
|
|
static bool lookup_feature(uint32_t *pval, const char *s, const char *e,
|
|
const char **featureset)
|
|
{
|
|
uint32_t mask;
|
|
const char **ppc;
|
|
bool found = false;
|
|
|
|
for (mask = 1, ppc = featureset; mask; mask <<= 1, ++ppc) {
|
|
if (*ppc && !altcmp(s, e, *ppc)) {
|
|
*pval |= mask;
|
|
found = true;
|
|
}
|
|
}
|
|
return found;
|
|
}
|
|
|
|
static void add_flagname_to_bitmaps(const char *flagname,
|
|
FeatureWordArray words,
|
|
Error **errp)
|
|
{
|
|
FeatureWord w;
|
|
for (w = 0; w < FEATURE_WORDS; w++) {
|
|
FeatureWordInfo *wi = &feature_word_info[w];
|
|
if (wi->feat_names &&
|
|
lookup_feature(&words[w], flagname, NULL, wi->feat_names)) {
|
|
break;
|
|
}
|
|
}
|
|
if (w == FEATURE_WORDS) {
|
|
error_setg(errp, "CPU feature %s not found", flagname);
|
|
}
|
|
}
|
|
|
|
/* CPU class name definitions: */
|
|
|
|
#define X86_CPU_TYPE_SUFFIX "-" TYPE_X86_CPU
|
|
#define X86_CPU_TYPE_NAME(name) (name X86_CPU_TYPE_SUFFIX)
|
|
|
|
/* Return type name for a given CPU model name
|
|
* Caller is responsible for freeing the returned string.
|
|
*/
|
|
static char *x86_cpu_type_name(const char *model_name)
|
|
{
|
|
return g_strdup_printf(X86_CPU_TYPE_NAME("%s"), model_name);
|
|
}
|
|
|
|
static ObjectClass *x86_cpu_class_by_name(const char *cpu_model)
|
|
{
|
|
ObjectClass *oc;
|
|
char *typename;
|
|
|
|
if (cpu_model == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
typename = x86_cpu_type_name(cpu_model);
|
|
oc = object_class_by_name(typename);
|
|
g_free(typename);
|
|
return oc;
|
|
}
|
|
|
|
struct X86CPUDefinition {
|
|
const char *name;
|
|
uint32_t level;
|
|
uint32_t xlevel;
|
|
uint32_t xlevel2;
|
|
/* vendor is zero-terminated, 12 character ASCII string */
|
|
char vendor[CPUID_VENDOR_SZ + 1];
|
|
int family;
|
|
int model;
|
|
int stepping;
|
|
FeatureWordArray features;
|
|
char model_id[48];
|
|
bool cache_info_passthrough;
|
|
};
|
|
|
|
static X86CPUDefinition builtin_x86_defs[] = {
|
|
{
|
|
.name = "qemu64",
|
|
.level = 4,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 6,
|
|
.model = 6,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES |
|
|
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
|
|
CPUID_PSE36,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3 | CPUID_EXT_CX16 | CPUID_EXT_POPCNT,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
(PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES) |
|
|
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM |
|
|
CPUID_EXT3_ABM | CPUID_EXT3_SSE4A,
|
|
.xlevel = 0x8000000A,
|
|
},
|
|
{
|
|
.name = "phenom",
|
|
.level = 5,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 16,
|
|
.model = 2,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES |
|
|
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
|
|
CPUID_PSE36 | CPUID_VME | CPUID_HT,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_CX16 |
|
|
CPUID_EXT_POPCNT,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
(PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES) |
|
|
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX |
|
|
CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT | CPUID_EXT2_MMXEXT |
|
|
CPUID_EXT2_FFXSR | CPUID_EXT2_PDPE1GB | CPUID_EXT2_RDTSCP,
|
|
/* Missing: CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
|
|
CPUID_EXT3_CR8LEG,
|
|
CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
|
|
CPUID_EXT3_OSVW, CPUID_EXT3_IBS */
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM |
|
|
CPUID_EXT3_ABM | CPUID_EXT3_SSE4A,
|
|
.features[FEAT_SVM] =
|
|
CPUID_SVM_NPT | CPUID_SVM_LBRV,
|
|
.xlevel = 0x8000001A,
|
|
.model_id = "AMD Phenom(tm) 9550 Quad-Core Processor"
|
|
},
|
|
{
|
|
.name = "core2duo",
|
|
.level = 10,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 15,
|
|
.stepping = 11,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES |
|
|
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
|
|
CPUID_PSE36 | CPUID_VME | CPUID_DTS | CPUID_ACPI | CPUID_SS |
|
|
CPUID_HT | CPUID_TM | CPUID_PBE,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3 |
|
|
CPUID_EXT_DTES64 | CPUID_EXT_DSCPL | CPUID_EXT_VMX | CPUID_EXT_EST |
|
|
CPUID_EXT_TM2 | CPUID_EXT_CX16 | CPUID_EXT_XTPR | CPUID_EXT_PDCM,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x80000008,
|
|
.model_id = "Intel(R) Core(TM)2 Duo CPU T7700 @ 2.40GHz",
|
|
},
|
|
{
|
|
.name = "kvm64",
|
|
.level = 5,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 15,
|
|
.model = 6,
|
|
.stepping = 1,
|
|
/* Missing: CPUID_VME, CPUID_HT */
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES |
|
|
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
|
|
CPUID_PSE36,
|
|
/* Missing: CPUID_EXT_POPCNT, CPUID_EXT_MONITOR */
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3 | CPUID_EXT_CX16,
|
|
/* Missing: CPUID_EXT2_PDPE1GB, CPUID_EXT2_RDTSCP */
|
|
.features[FEAT_8000_0001_EDX] =
|
|
(PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES) |
|
|
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
|
|
/* Missing: CPUID_EXT3_LAHF_LM, CPUID_EXT3_CMP_LEG, CPUID_EXT3_EXTAPIC,
|
|
CPUID_EXT3_CR8LEG, CPUID_EXT3_ABM, CPUID_EXT3_SSE4A,
|
|
CPUID_EXT3_MISALIGNSSE, CPUID_EXT3_3DNOWPREFETCH,
|
|
CPUID_EXT3_OSVW, CPUID_EXT3_IBS, CPUID_EXT3_SVM */
|
|
.features[FEAT_8000_0001_ECX] =
|
|
0,
|
|
.xlevel = 0x80000008,
|
|
.model_id = "Common KVM processor"
|
|
},
|
|
{
|
|
.name = "qemu32",
|
|
.level = 4,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 6,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3 | CPUID_EXT_POPCNT,
|
|
.xlevel = 0x80000004,
|
|
},
|
|
{
|
|
.name = "kvm32",
|
|
.level = 5,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 15,
|
|
.model = 6,
|
|
.stepping = 1,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES |
|
|
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_PSE36,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
0,
|
|
.xlevel = 0x80000008,
|
|
.model_id = "Common 32-bit KVM processor"
|
|
},
|
|
{
|
|
.name = "coreduo",
|
|
.level = 10,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 14,
|
|
.stepping = 8,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES | CPUID_VME |
|
|
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_DTS | CPUID_ACPI |
|
|
CPUID_SS | CPUID_HT | CPUID_TM | CPUID_PBE,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_VMX |
|
|
CPUID_EXT_EST | CPUID_EXT_TM2 | CPUID_EXT_XTPR | CPUID_EXT_PDCM,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_NX,
|
|
.xlevel = 0x80000008,
|
|
.model_id = "Genuine Intel(R) CPU T2600 @ 2.16GHz",
|
|
},
|
|
{
|
|
.name = "486",
|
|
.level = 1,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 4,
|
|
.model = 8,
|
|
.stepping = 0,
|
|
.features[FEAT_1_EDX] =
|
|
I486_FEATURES,
|
|
.xlevel = 0,
|
|
},
|
|
{
|
|
.name = "pentium",
|
|
.level = 1,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 5,
|
|
.model = 4,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
PENTIUM_FEATURES,
|
|
.xlevel = 0,
|
|
},
|
|
{
|
|
.name = "pentium2",
|
|
.level = 2,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 5,
|
|
.stepping = 2,
|
|
.features[FEAT_1_EDX] =
|
|
PENTIUM2_FEATURES,
|
|
.xlevel = 0,
|
|
},
|
|
{
|
|
.name = "pentium3",
|
|
.level = 2,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 7,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
PENTIUM3_FEATURES,
|
|
.xlevel = 0,
|
|
},
|
|
{
|
|
.name = "athlon",
|
|
.level = 2,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 6,
|
|
.model = 2,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES | CPUID_PSE36 | CPUID_VME | CPUID_MTRR |
|
|
CPUID_MCA,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
(PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES) |
|
|
CPUID_EXT2_MMXEXT | CPUID_EXT2_3DNOW | CPUID_EXT2_3DNOWEXT,
|
|
.xlevel = 0x80000008,
|
|
},
|
|
{
|
|
.name = "n270",
|
|
/* original is on level 10 */
|
|
.level = 5,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 28,
|
|
.stepping = 2,
|
|
.features[FEAT_1_EDX] =
|
|
PPRO_FEATURES |
|
|
CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA | CPUID_VME | CPUID_DTS |
|
|
CPUID_ACPI | CPUID_SS | CPUID_HT | CPUID_TM | CPUID_PBE,
|
|
/* Some CPUs got no CPUID_SEP */
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3 | CPUID_EXT_MONITOR | CPUID_EXT_SSSE3 |
|
|
CPUID_EXT_DSCPL | CPUID_EXT_EST | CPUID_EXT_TM2 | CPUID_EXT_XTPR |
|
|
CPUID_EXT_MOVBE,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
(PPRO_FEATURES & CPUID_EXT2_AMD_ALIASES) |
|
|
CPUID_EXT2_NX,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
|
|
},
|
|
{
|
|
.name = "Conroe",
|
|
.level = 4,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 15,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSSE3 | CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_NX | CPUID_EXT2_SYSCALL,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Intel Celeron_4x0 (Conroe/Merom Class Core 2)",
|
|
},
|
|
{
|
|
.name = "Penryn",
|
|
.level = 4,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 23,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
|
|
CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_NX | CPUID_EXT2_SYSCALL,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Intel Core 2 Duo P9xxx (Penryn Class Core 2)",
|
|
},
|
|
{
|
|
.name = "Nehalem",
|
|
.level = 4,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 26,
|
|
.stepping = 3,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_POPCNT | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
|
|
CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Intel Core i7 9xx (Nehalem Class Core i7)",
|
|
},
|
|
{
|
|
.name = "Westmere",
|
|
.level = 11,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 44,
|
|
.stepping = 1,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_AES | CPUID_EXT_POPCNT | CPUID_EXT_SSE42 |
|
|
CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
|
|
CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Westmere E56xx/L56xx/X56xx (Nehalem-C)",
|
|
},
|
|
{
|
|
.name = "SandyBridge",
|
|
.level = 0xd,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 42,
|
|
.stepping = 1,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
|
|
CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_POPCNT |
|
|
CPUID_EXT_X2APIC | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
|
|
CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ |
|
|
CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_NX |
|
|
CPUID_EXT2_SYSCALL,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Intel Xeon E312xx (Sandy Bridge)",
|
|
},
|
|
{
|
|
.name = "Haswell",
|
|
.level = 0xd,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 60,
|
|
.stepping = 1,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
|
|
CPUID_EXT_POPCNT | CPUID_EXT_X2APIC | CPUID_EXT_SSE42 |
|
|
CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
|
|
CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3 |
|
|
CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_FMA | CPUID_EXT_MOVBE |
|
|
CPUID_EXT_PCID,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_NX |
|
|
CPUID_EXT2_SYSCALL,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM,
|
|
.features[FEAT_7_0_EBX] =
|
|
CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_BMI1 |
|
|
CPUID_7_0_EBX_HLE | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_SMEP |
|
|
CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID |
|
|
CPUID_7_0_EBX_RTM,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Intel Core Processor (Haswell)",
|
|
},
|
|
{
|
|
.name = "Broadwell",
|
|
.level = 0xd,
|
|
.vendor = CPUID_VENDOR_INTEL,
|
|
.family = 6,
|
|
.model = 61,
|
|
.stepping = 2,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
|
|
CPUID_EXT_POPCNT | CPUID_EXT_X2APIC | CPUID_EXT_SSE42 |
|
|
CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_SSSE3 |
|
|
CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3 |
|
|
CPUID_EXT_TSC_DEADLINE_TIMER | CPUID_EXT_FMA | CPUID_EXT_MOVBE |
|
|
CPUID_EXT_PCID,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_NX |
|
|
CPUID_EXT2_SYSCALL,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_LAHF_LM | CPUID_EXT3_3DNOWPREFETCH,
|
|
.features[FEAT_7_0_EBX] =
|
|
CPUID_7_0_EBX_FSGSBASE | CPUID_7_0_EBX_BMI1 |
|
|
CPUID_7_0_EBX_HLE | CPUID_7_0_EBX_AVX2 | CPUID_7_0_EBX_SMEP |
|
|
CPUID_7_0_EBX_BMI2 | CPUID_7_0_EBX_ERMS | CPUID_7_0_EBX_INVPCID |
|
|
CPUID_7_0_EBX_RTM | CPUID_7_0_EBX_RDSEED | CPUID_7_0_EBX_ADX |
|
|
CPUID_7_0_EBX_SMAP,
|
|
.xlevel = 0x8000000A,
|
|
.model_id = "Intel Core Processor (Broadwell)",
|
|
},
|
|
{
|
|
.name = "Opteron_G1",
|
|
.level = 5,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 15,
|
|
.model = 6,
|
|
.stepping = 1,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
|
|
CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
|
|
CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
|
|
CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
|
|
CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
|
|
CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
|
|
.xlevel = 0x80000008,
|
|
.model_id = "AMD Opteron 240 (Gen 1 Class Opteron)",
|
|
},
|
|
{
|
|
.name = "Opteron_G2",
|
|
.level = 5,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 15,
|
|
.model = 6,
|
|
.stepping = 1,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_CX16 | CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_FXSR |
|
|
CPUID_EXT2_MMX | CPUID_EXT2_NX | CPUID_EXT2_PSE36 |
|
|
CPUID_EXT2_PAT | CPUID_EXT2_CMOV | CPUID_EXT2_MCA |
|
|
CPUID_EXT2_PGE | CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL |
|
|
CPUID_EXT2_APIC | CPUID_EXT2_CX8 | CPUID_EXT2_MCE |
|
|
CPUID_EXT2_PAE | CPUID_EXT2_MSR | CPUID_EXT2_TSC | CPUID_EXT2_PSE |
|
|
CPUID_EXT2_DE | CPUID_EXT2_FPU,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_SVM | CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x80000008,
|
|
.model_id = "AMD Opteron 22xx (Gen 2 Class Opteron)",
|
|
},
|
|
{
|
|
.name = "Opteron_G3",
|
|
.level = 5,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 15,
|
|
.model = 6,
|
|
.stepping = 1,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_POPCNT | CPUID_EXT_CX16 | CPUID_EXT_MONITOR |
|
|
CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_RDTSCP | CPUID_EXT2_FXSR |
|
|
CPUID_EXT2_MMX | CPUID_EXT2_NX | CPUID_EXT2_PSE36 |
|
|
CPUID_EXT2_PAT | CPUID_EXT2_CMOV | CPUID_EXT2_MCA |
|
|
CPUID_EXT2_PGE | CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL |
|
|
CPUID_EXT2_APIC | CPUID_EXT2_CX8 | CPUID_EXT2_MCE |
|
|
CPUID_EXT2_PAE | CPUID_EXT2_MSR | CPUID_EXT2_TSC | CPUID_EXT2_PSE |
|
|
CPUID_EXT2_DE | CPUID_EXT2_FPU,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_MISALIGNSSE | CPUID_EXT3_SSE4A |
|
|
CPUID_EXT3_ABM | CPUID_EXT3_SVM | CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x80000008,
|
|
.model_id = "AMD Opteron 23xx (Gen 3 Class Opteron)",
|
|
},
|
|
{
|
|
.name = "Opteron_G4",
|
|
.level = 0xd,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 21,
|
|
.model = 1,
|
|
.stepping = 2,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_AVX | CPUID_EXT_XSAVE | CPUID_EXT_AES |
|
|
CPUID_EXT_POPCNT | CPUID_EXT_SSE42 | CPUID_EXT_SSE41 |
|
|
CPUID_EXT_CX16 | CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ |
|
|
CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_RDTSCP |
|
|
CPUID_EXT2_PDPE1GB | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
|
|
CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
|
|
CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
|
|
CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
|
|
CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
|
|
CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_FMA4 | CPUID_EXT3_XOP |
|
|
CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
|
|
CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000001A,
|
|
.model_id = "AMD Opteron 62xx class CPU",
|
|
},
|
|
{
|
|
.name = "Opteron_G5",
|
|
.level = 0xd,
|
|
.vendor = CPUID_VENDOR_AMD,
|
|
.family = 21,
|
|
.model = 2,
|
|
.stepping = 0,
|
|
.features[FEAT_1_EDX] =
|
|
CPUID_SSE2 | CPUID_SSE | CPUID_FXSR | CPUID_MMX |
|
|
CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV | CPUID_MCA |
|
|
CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC | CPUID_CX8 |
|
|
CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC | CPUID_PSE |
|
|
CPUID_DE | CPUID_FP87,
|
|
.features[FEAT_1_ECX] =
|
|
CPUID_EXT_F16C | CPUID_EXT_AVX | CPUID_EXT_XSAVE |
|
|
CPUID_EXT_AES | CPUID_EXT_POPCNT | CPUID_EXT_SSE42 |
|
|
CPUID_EXT_SSE41 | CPUID_EXT_CX16 | CPUID_EXT_FMA |
|
|
CPUID_EXT_SSSE3 | CPUID_EXT_PCLMULQDQ | CPUID_EXT_SSE3,
|
|
.features[FEAT_8000_0001_EDX] =
|
|
CPUID_EXT2_LM | CPUID_EXT2_RDTSCP |
|
|
CPUID_EXT2_PDPE1GB | CPUID_EXT2_FXSR | CPUID_EXT2_MMX |
|
|
CPUID_EXT2_NX | CPUID_EXT2_PSE36 | CPUID_EXT2_PAT |
|
|
CPUID_EXT2_CMOV | CPUID_EXT2_MCA | CPUID_EXT2_PGE |
|
|
CPUID_EXT2_MTRR | CPUID_EXT2_SYSCALL | CPUID_EXT2_APIC |
|
|
CPUID_EXT2_CX8 | CPUID_EXT2_MCE | CPUID_EXT2_PAE | CPUID_EXT2_MSR |
|
|
CPUID_EXT2_TSC | CPUID_EXT2_PSE | CPUID_EXT2_DE | CPUID_EXT2_FPU,
|
|
.features[FEAT_8000_0001_ECX] =
|
|
CPUID_EXT3_TBM | CPUID_EXT3_FMA4 | CPUID_EXT3_XOP |
|
|
CPUID_EXT3_3DNOWPREFETCH | CPUID_EXT3_MISALIGNSSE |
|
|
CPUID_EXT3_SSE4A | CPUID_EXT3_ABM | CPUID_EXT3_SVM |
|
|
CPUID_EXT3_LAHF_LM,
|
|
.xlevel = 0x8000001A,
|
|
.model_id = "AMD Opteron 63xx class CPU",
|
|
},
|
|
};
|
|
|
|
/**
|
|
* x86_cpu_compat_set_features:
|
|
* @cpu_model: CPU model name to be changed. If NULL, all CPU models are changed
|
|
* @w: Identifies the feature word to be changed.
|
|
* @feat_add: Feature bits to be added to feature word
|
|
* @feat_remove: Feature bits to be removed from feature word
|
|
*
|
|
* Change CPU model feature bits for compatibility.
|
|
*
|
|
* This function may be used by machine-type compatibility functions
|
|
* to enable or disable feature bits on specific CPU models.
|
|
*/
|
|
void x86_cpu_compat_set_features(const char *cpu_model, FeatureWord w,
|
|
uint32_t feat_add, uint32_t feat_remove)
|
|
{
|
|
X86CPUDefinition *def;
|
|
int i;
|
|
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
|
|
def = &builtin_x86_defs[i];
|
|
if (!cpu_model || !strcmp(cpu_model, def->name)) {
|
|
def->features[w] |= feat_add;
|
|
def->features[w] &= ~feat_remove;
|
|
}
|
|
}
|
|
}
|
|
|
|
static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w,
|
|
bool migratable_only);
|
|
|
|
#ifdef CONFIG_KVM
|
|
|
|
static int cpu_x86_fill_model_id(char *str)
|
|
{
|
|
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
host_cpuid(0x80000002 + i, 0, &eax, &ebx, &ecx, &edx);
|
|
memcpy(str + i * 16 + 0, &eax, 4);
|
|
memcpy(str + i * 16 + 4, &ebx, 4);
|
|
memcpy(str + i * 16 + 8, &ecx, 4);
|
|
memcpy(str + i * 16 + 12, &edx, 4);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static X86CPUDefinition host_cpudef;
|
|
|
|
static Property host_x86_cpu_properties[] = {
|
|
DEFINE_PROP_BOOL("migratable", X86CPU, migratable, true),
|
|
DEFINE_PROP_END_OF_LIST()
|
|
};
|
|
|
|
/* class_init for the "host" CPU model
|
|
*
|
|
* This function may be called before KVM is initialized.
|
|
*/
|
|
static void host_x86_cpu_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
X86CPUClass *xcc = X86_CPU_CLASS(oc);
|
|
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
|
|
|
|
xcc->kvm_required = true;
|
|
|
|
host_cpuid(0x0, 0, &eax, &ebx, &ecx, &edx);
|
|
x86_cpu_vendor_words2str(host_cpudef.vendor, ebx, edx, ecx);
|
|
|
|
host_cpuid(0x1, 0, &eax, &ebx, &ecx, &edx);
|
|
host_cpudef.family = ((eax >> 8) & 0x0F) + ((eax >> 20) & 0xFF);
|
|
host_cpudef.model = ((eax >> 4) & 0x0F) | ((eax & 0xF0000) >> 12);
|
|
host_cpudef.stepping = eax & 0x0F;
|
|
|
|
cpu_x86_fill_model_id(host_cpudef.model_id);
|
|
|
|
xcc->cpu_def = &host_cpudef;
|
|
host_cpudef.cache_info_passthrough = true;
|
|
|
|
/* level, xlevel, xlevel2, and the feature words are initialized on
|
|
* instance_init, because they require KVM to be initialized.
|
|
*/
|
|
|
|
dc->props = host_x86_cpu_properties;
|
|
}
|
|
|
|
static void host_x86_cpu_initfn(Object *obj)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
KVMState *s = kvm_state;
|
|
|
|
assert(kvm_enabled());
|
|
|
|
/* We can't fill the features array here because we don't know yet if
|
|
* "migratable" is true or false.
|
|
*/
|
|
cpu->host_features = true;
|
|
|
|
env->cpuid_level = kvm_arch_get_supported_cpuid(s, 0x0, 0, R_EAX);
|
|
env->cpuid_xlevel = kvm_arch_get_supported_cpuid(s, 0x80000000, 0, R_EAX);
|
|
env->cpuid_xlevel2 = kvm_arch_get_supported_cpuid(s, 0xC0000000, 0, R_EAX);
|
|
|
|
object_property_set_bool(OBJECT(cpu), true, "pmu", &error_abort);
|
|
}
|
|
|
|
static const TypeInfo host_x86_cpu_type_info = {
|
|
.name = X86_CPU_TYPE_NAME("host"),
|
|
.parent = TYPE_X86_CPU,
|
|
.instance_init = host_x86_cpu_initfn,
|
|
.class_init = host_x86_cpu_class_init,
|
|
};
|
|
|
|
#endif
|
|
|
|
static void report_unavailable_features(FeatureWord w, uint32_t mask)
|
|
{
|
|
FeatureWordInfo *f = &feature_word_info[w];
|
|
int i;
|
|
|
|
for (i = 0; i < 32; ++i) {
|
|
if (1 << i & mask) {
|
|
const char *reg = get_register_name_32(f->cpuid_reg);
|
|
assert(reg);
|
|
fprintf(stderr, "warning: %s doesn't support requested feature: "
|
|
"CPUID.%02XH:%s%s%s [bit %d]\n",
|
|
kvm_enabled() ? "host" : "TCG",
|
|
f->cpuid_eax, reg,
|
|
f->feat_names[i] ? "." : "",
|
|
f->feat_names[i] ? f->feat_names[i] : "", i);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void x86_cpuid_version_get_family(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
int64_t value;
|
|
|
|
value = (env->cpuid_version >> 8) & 0xf;
|
|
if (value == 0xf) {
|
|
value += (env->cpuid_version >> 20) & 0xff;
|
|
}
|
|
visit_type_int(v, &value, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_version_set_family(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
const int64_t min = 0;
|
|
const int64_t max = 0xff + 0xf;
|
|
Error *local_err = NULL;
|
|
int64_t value;
|
|
|
|
visit_type_int(v, &value, name, &local_err);
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
if (value < min || value > max) {
|
|
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
|
|
name ? name : "null", value, min, max);
|
|
return;
|
|
}
|
|
|
|
env->cpuid_version &= ~0xff00f00;
|
|
if (value > 0x0f) {
|
|
env->cpuid_version |= 0xf00 | ((value - 0x0f) << 20);
|
|
} else {
|
|
env->cpuid_version |= value << 8;
|
|
}
|
|
}
|
|
|
|
static void x86_cpuid_version_get_model(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
int64_t value;
|
|
|
|
value = (env->cpuid_version >> 4) & 0xf;
|
|
value |= ((env->cpuid_version >> 16) & 0xf) << 4;
|
|
visit_type_int(v, &value, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_version_set_model(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
const int64_t min = 0;
|
|
const int64_t max = 0xff;
|
|
Error *local_err = NULL;
|
|
int64_t value;
|
|
|
|
visit_type_int(v, &value, name, &local_err);
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
if (value < min || value > max) {
|
|
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
|
|
name ? name : "null", value, min, max);
|
|
return;
|
|
}
|
|
|
|
env->cpuid_version &= ~0xf00f0;
|
|
env->cpuid_version |= ((value & 0xf) << 4) | ((value >> 4) << 16);
|
|
}
|
|
|
|
static void x86_cpuid_version_get_stepping(Object *obj, Visitor *v,
|
|
void *opaque, const char *name,
|
|
Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
int64_t value;
|
|
|
|
value = env->cpuid_version & 0xf;
|
|
visit_type_int(v, &value, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_version_set_stepping(Object *obj, Visitor *v,
|
|
void *opaque, const char *name,
|
|
Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
const int64_t min = 0;
|
|
const int64_t max = 0xf;
|
|
Error *local_err = NULL;
|
|
int64_t value;
|
|
|
|
visit_type_int(v, &value, name, &local_err);
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
if (value < min || value > max) {
|
|
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
|
|
name ? name : "null", value, min, max);
|
|
return;
|
|
}
|
|
|
|
env->cpuid_version &= ~0xf;
|
|
env->cpuid_version |= value & 0xf;
|
|
}
|
|
|
|
static void x86_cpuid_get_level(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
|
|
visit_type_uint32(v, &cpu->env.cpuid_level, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_set_level(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
|
|
visit_type_uint32(v, &cpu->env.cpuid_level, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_get_xlevel(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
|
|
visit_type_uint32(v, &cpu->env.cpuid_xlevel, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_set_xlevel(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
|
|
visit_type_uint32(v, &cpu->env.cpuid_xlevel, name, errp);
|
|
}
|
|
|
|
static char *x86_cpuid_get_vendor(Object *obj, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
char *value;
|
|
|
|
value = (char *)g_malloc(CPUID_VENDOR_SZ + 1);
|
|
x86_cpu_vendor_words2str(value, env->cpuid_vendor1, env->cpuid_vendor2,
|
|
env->cpuid_vendor3);
|
|
return value;
|
|
}
|
|
|
|
static void x86_cpuid_set_vendor(Object *obj, const char *value,
|
|
Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
int i;
|
|
|
|
if (strlen(value) != CPUID_VENDOR_SZ) {
|
|
error_set(errp, QERR_PROPERTY_VALUE_BAD, "",
|
|
"vendor", value);
|
|
return;
|
|
}
|
|
|
|
env->cpuid_vendor1 = 0;
|
|
env->cpuid_vendor2 = 0;
|
|
env->cpuid_vendor3 = 0;
|
|
for (i = 0; i < 4; i++) {
|
|
env->cpuid_vendor1 |= ((uint8_t)value[i ]) << (8 * i);
|
|
env->cpuid_vendor2 |= ((uint8_t)value[i + 4]) << (8 * i);
|
|
env->cpuid_vendor3 |= ((uint8_t)value[i + 8]) << (8 * i);
|
|
}
|
|
}
|
|
|
|
static char *x86_cpuid_get_model_id(Object *obj, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
char *value;
|
|
int i;
|
|
|
|
value = g_malloc(48 + 1);
|
|
for (i = 0; i < 48; i++) {
|
|
value[i] = env->cpuid_model[i >> 2] >> (8 * (i & 3));
|
|
}
|
|
value[48] = '\0';
|
|
return value;
|
|
}
|
|
|
|
static void x86_cpuid_set_model_id(Object *obj, const char *model_id,
|
|
Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
int c, len, i;
|
|
|
|
if (model_id == NULL) {
|
|
model_id = "";
|
|
}
|
|
len = strlen(model_id);
|
|
memset(env->cpuid_model, 0, 48);
|
|
for (i = 0; i < 48; i++) {
|
|
if (i >= len) {
|
|
c = '\0';
|
|
} else {
|
|
c = (uint8_t)model_id[i];
|
|
}
|
|
env->cpuid_model[i >> 2] |= c << (8 * (i & 3));
|
|
}
|
|
}
|
|
|
|
static void x86_cpuid_get_tsc_freq(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
int64_t value;
|
|
|
|
value = cpu->env.tsc_khz * 1000;
|
|
visit_type_int(v, &value, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_set_tsc_freq(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
const int64_t min = 0;
|
|
const int64_t max = INT64_MAX;
|
|
Error *local_err = NULL;
|
|
int64_t value;
|
|
|
|
visit_type_int(v, &value, name, &local_err);
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
if (value < min || value > max) {
|
|
error_set(errp, QERR_PROPERTY_VALUE_OUT_OF_RANGE, "",
|
|
name ? name : "null", value, min, max);
|
|
return;
|
|
}
|
|
|
|
cpu->env.tsc_khz = value / 1000;
|
|
}
|
|
|
|
static void x86_cpuid_get_apic_id(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
int64_t value = cpu->env.cpuid_apic_id;
|
|
|
|
visit_type_int(v, &value, name, errp);
|
|
}
|
|
|
|
static void x86_cpuid_set_apic_id(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
DeviceState *dev = DEVICE(obj);
|
|
const int64_t min = 0;
|
|
const int64_t max = UINT32_MAX;
|
|
Error *error = NULL;
|
|
int64_t value;
|
|
|
|
if (dev->realized) {
|
|
error_setg(errp, "Attempt to set property '%s' on '%s' after "
|
|
"it was realized", name, object_get_typename(obj));
|
|
return;
|
|
}
|
|
|
|
visit_type_int(v, &value, name, &error);
|
|
if (error) {
|
|
error_propagate(errp, error);
|
|
return;
|
|
}
|
|
if (value < min || value > max) {
|
|
error_setg(errp, "Property %s.%s doesn't take value %" PRId64
|
|
" (minimum: %" PRId64 ", maximum: %" PRId64 ")" ,
|
|
object_get_typename(obj), name, value, min, max);
|
|
return;
|
|
}
|
|
|
|
if ((value != cpu->env.cpuid_apic_id) && cpu_exists(value)) {
|
|
error_setg(errp, "CPU with APIC ID %" PRIi64 " exists", value);
|
|
return;
|
|
}
|
|
cpu->env.cpuid_apic_id = value;
|
|
}
|
|
|
|
/* Generic getter for "feature-words" and "filtered-features" properties */
|
|
static void x86_cpu_get_feature_words(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
uint32_t *array = (uint32_t *)opaque;
|
|
FeatureWord w;
|
|
Error *err = NULL;
|
|
X86CPUFeatureWordInfo word_infos[FEATURE_WORDS] = { };
|
|
X86CPUFeatureWordInfoList list_entries[FEATURE_WORDS] = { };
|
|
X86CPUFeatureWordInfoList *list = NULL;
|
|
|
|
for (w = 0; w < FEATURE_WORDS; w++) {
|
|
FeatureWordInfo *wi = &feature_word_info[w];
|
|
X86CPUFeatureWordInfo *qwi = &word_infos[w];
|
|
qwi->cpuid_input_eax = wi->cpuid_eax;
|
|
qwi->has_cpuid_input_ecx = wi->cpuid_needs_ecx;
|
|
qwi->cpuid_input_ecx = wi->cpuid_ecx;
|
|
qwi->cpuid_register = x86_reg_info_32[wi->cpuid_reg].qapi_enum;
|
|
qwi->features = array[w];
|
|
|
|
/* List will be in reverse order, but order shouldn't matter */
|
|
list_entries[w].next = list;
|
|
list_entries[w].value = &word_infos[w];
|
|
list = &list_entries[w];
|
|
}
|
|
|
|
visit_type_X86CPUFeatureWordInfoList(v, &list, "feature-words", &err);
|
|
error_propagate(errp, err);
|
|
}
|
|
|
|
static void x86_get_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
int64_t value = cpu->hyperv_spinlock_attempts;
|
|
|
|
visit_type_int(v, &value, name, errp);
|
|
}
|
|
|
|
static void x86_set_hv_spinlocks(Object *obj, Visitor *v, void *opaque,
|
|
const char *name, Error **errp)
|
|
{
|
|
const int64_t min = 0xFFF;
|
|
const int64_t max = UINT_MAX;
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
Error *err = NULL;
|
|
int64_t value;
|
|
|
|
visit_type_int(v, &value, name, &err);
|
|
if (err) {
|
|
error_propagate(errp, err);
|
|
return;
|
|
}
|
|
|
|
if (value < min || value > max) {
|
|
error_setg(errp, "Property %s.%s doesn't take value %" PRId64
|
|
" (minimum: %" PRId64 ", maximum: %" PRId64 ")",
|
|
object_get_typename(obj), name ? name : "null",
|
|
value, min, max);
|
|
return;
|
|
}
|
|
cpu->hyperv_spinlock_attempts = value;
|
|
}
|
|
|
|
static PropertyInfo qdev_prop_spinlocks = {
|
|
.name = "int",
|
|
.get = x86_get_hv_spinlocks,
|
|
.set = x86_set_hv_spinlocks,
|
|
};
|
|
|
|
/* Convert all '_' in a feature string option name to '-', to make feature
|
|
* name conform to QOM property naming rule, which uses '-' instead of '_'.
|
|
*/
|
|
static inline void feat2prop(char *s)
|
|
{
|
|
while ((s = strchr(s, '_'))) {
|
|
*s = '-';
|
|
}
|
|
}
|
|
|
|
/* Parse "+feature,-feature,feature=foo" CPU feature string
|
|
*/
|
|
static void x86_cpu_parse_featurestr(CPUState *cs, char *features,
|
|
Error **errp)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
char *featurestr; /* Single 'key=value" string being parsed */
|
|
FeatureWord w;
|
|
/* Features to be added */
|
|
FeatureWordArray plus_features = { 0 };
|
|
/* Features to be removed */
|
|
FeatureWordArray minus_features = { 0 };
|
|
uint32_t numvalue;
|
|
CPUX86State *env = &cpu->env;
|
|
Error *local_err = NULL;
|
|
|
|
featurestr = features ? strtok(features, ",") : NULL;
|
|
|
|
while (featurestr) {
|
|
char *val;
|
|
if (featurestr[0] == '+') {
|
|
add_flagname_to_bitmaps(featurestr + 1, plus_features, &local_err);
|
|
} else if (featurestr[0] == '-') {
|
|
add_flagname_to_bitmaps(featurestr + 1, minus_features, &local_err);
|
|
} else if ((val = strchr(featurestr, '='))) {
|
|
*val = 0; val++;
|
|
feat2prop(featurestr);
|
|
if (!strcmp(featurestr, "xlevel")) {
|
|
char *err;
|
|
char num[32];
|
|
|
|
numvalue = strtoul(val, &err, 0);
|
|
if (!*val || *err) {
|
|
error_setg(errp, "bad numerical value %s", val);
|
|
return;
|
|
}
|
|
if (numvalue < 0x80000000) {
|
|
error_report("xlevel value shall always be >= 0x80000000"
|
|
", fixup will be removed in future versions");
|
|
numvalue += 0x80000000;
|
|
}
|
|
snprintf(num, sizeof(num), "%" PRIu32, numvalue);
|
|
object_property_parse(OBJECT(cpu), num, featurestr, &local_err);
|
|
} else if (!strcmp(featurestr, "tsc-freq")) {
|
|
int64_t tsc_freq;
|
|
char *err;
|
|
char num[32];
|
|
|
|
tsc_freq = strtosz_suffix_unit(val, &err,
|
|
STRTOSZ_DEFSUFFIX_B, 1000);
|
|
if (tsc_freq < 0 || *err) {
|
|
error_setg(errp, "bad numerical value %s", val);
|
|
return;
|
|
}
|
|
snprintf(num, sizeof(num), "%" PRId64, tsc_freq);
|
|
object_property_parse(OBJECT(cpu), num, "tsc-frequency",
|
|
&local_err);
|
|
} else if (!strcmp(featurestr, "hv-spinlocks")) {
|
|
char *err;
|
|
const int min = 0xFFF;
|
|
char num[32];
|
|
numvalue = strtoul(val, &err, 0);
|
|
if (!*val || *err) {
|
|
error_setg(errp, "bad numerical value %s", val);
|
|
return;
|
|
}
|
|
if (numvalue < min) {
|
|
error_report("hv-spinlocks value shall always be >= 0x%x"
|
|
", fixup will be removed in future versions",
|
|
min);
|
|
numvalue = min;
|
|
}
|
|
snprintf(num, sizeof(num), "%" PRId32, numvalue);
|
|
object_property_parse(OBJECT(cpu), num, featurestr, &local_err);
|
|
} else {
|
|
object_property_parse(OBJECT(cpu), val, featurestr, &local_err);
|
|
}
|
|
} else {
|
|
feat2prop(featurestr);
|
|
object_property_parse(OBJECT(cpu), "on", featurestr, &local_err);
|
|
}
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
featurestr = strtok(NULL, ",");
|
|
}
|
|
|
|
if (cpu->host_features) {
|
|
for (w = 0; w < FEATURE_WORDS; w++) {
|
|
env->features[w] =
|
|
x86_cpu_get_supported_feature_word(w, cpu->migratable);
|
|
}
|
|
}
|
|
|
|
for (w = 0; w < FEATURE_WORDS; w++) {
|
|
env->features[w] |= plus_features[w];
|
|
env->features[w] &= ~minus_features[w];
|
|
}
|
|
}
|
|
|
|
/* generate a composite string into buf of all cpuid names in featureset
|
|
* selected by fbits. indicate truncation at bufsize in the event of overflow.
|
|
* if flags, suppress names undefined in featureset.
|
|
*/
|
|
static void listflags(char *buf, int bufsize, uint32_t fbits,
|
|
const char **featureset, uint32_t flags)
|
|
{
|
|
const char **p = &featureset[31];
|
|
char *q, *b, bit;
|
|
int nc;
|
|
|
|
b = 4 <= bufsize ? buf + (bufsize -= 3) - 1 : NULL;
|
|
*buf = '\0';
|
|
for (q = buf, bit = 31; fbits && bufsize; --p, fbits &= ~(1 << bit), --bit)
|
|
if (fbits & 1 << bit && (*p || !flags)) {
|
|
if (*p)
|
|
nc = snprintf(q, bufsize, "%s%s", q == buf ? "" : " ", *p);
|
|
else
|
|
nc = snprintf(q, bufsize, "%s[%d]", q == buf ? "" : " ", bit);
|
|
if (bufsize <= nc) {
|
|
if (b) {
|
|
memcpy(b, "...", sizeof("..."));
|
|
}
|
|
return;
|
|
}
|
|
q += nc;
|
|
bufsize -= nc;
|
|
}
|
|
}
|
|
|
|
/* generate CPU information. */
|
|
void x86_cpu_list(FILE *f, fprintf_function cpu_fprintf)
|
|
{
|
|
X86CPUDefinition *def;
|
|
char buf[256];
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
|
|
def = &builtin_x86_defs[i];
|
|
snprintf(buf, sizeof(buf), "%s", def->name);
|
|
(*cpu_fprintf)(f, "x86 %16s %-48s\n", buf, def->model_id);
|
|
}
|
|
#ifdef CONFIG_KVM
|
|
(*cpu_fprintf)(f, "x86 %16s %-48s\n", "host",
|
|
"KVM processor with all supported host features "
|
|
"(only available in KVM mode)");
|
|
#endif
|
|
|
|
(*cpu_fprintf)(f, "\nRecognized CPUID flags:\n");
|
|
for (i = 0; i < ARRAY_SIZE(feature_word_info); i++) {
|
|
FeatureWordInfo *fw = &feature_word_info[i];
|
|
|
|
listflags(buf, sizeof(buf), (uint32_t)~0, fw->feat_names, 1);
|
|
(*cpu_fprintf)(f, " %s\n", buf);
|
|
}
|
|
}
|
|
|
|
CpuDefinitionInfoList *arch_query_cpu_definitions(Error **errp)
|
|
{
|
|
CpuDefinitionInfoList *cpu_list = NULL;
|
|
X86CPUDefinition *def;
|
|
int i;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
|
|
CpuDefinitionInfoList *entry;
|
|
CpuDefinitionInfo *info;
|
|
|
|
def = &builtin_x86_defs[i];
|
|
info = g_malloc0(sizeof(*info));
|
|
info->name = g_strdup(def->name);
|
|
|
|
entry = g_malloc0(sizeof(*entry));
|
|
entry->value = info;
|
|
entry->next = cpu_list;
|
|
cpu_list = entry;
|
|
}
|
|
|
|
return cpu_list;
|
|
}
|
|
|
|
static uint32_t x86_cpu_get_supported_feature_word(FeatureWord w,
|
|
bool migratable_only)
|
|
{
|
|
FeatureWordInfo *wi = &feature_word_info[w];
|
|
uint32_t r;
|
|
|
|
if (kvm_enabled()) {
|
|
r = kvm_arch_get_supported_cpuid(kvm_state, wi->cpuid_eax,
|
|
wi->cpuid_ecx,
|
|
wi->cpuid_reg);
|
|
} else if (tcg_enabled()) {
|
|
r = wi->tcg_features;
|
|
} else {
|
|
return ~0;
|
|
}
|
|
if (migratable_only) {
|
|
r &= x86_cpu_get_migratable_flags(w);
|
|
}
|
|
return r;
|
|
}
|
|
|
|
/*
|
|
* Filters CPU feature words based on host availability of each feature.
|
|
*
|
|
* Returns: 0 if all flags are supported by the host, non-zero otherwise.
|
|
*/
|
|
static int x86_cpu_filter_features(X86CPU *cpu)
|
|
{
|
|
CPUX86State *env = &cpu->env;
|
|
FeatureWord w;
|
|
int rv = 0;
|
|
|
|
for (w = 0; w < FEATURE_WORDS; w++) {
|
|
uint32_t host_feat =
|
|
x86_cpu_get_supported_feature_word(w, cpu->migratable);
|
|
uint32_t requested_features = env->features[w];
|
|
env->features[w] &= host_feat;
|
|
cpu->filtered_features[w] = requested_features & ~env->features[w];
|
|
if (cpu->filtered_features[w]) {
|
|
if (cpu->check_cpuid || cpu->enforce_cpuid) {
|
|
report_unavailable_features(w, cpu->filtered_features[w]);
|
|
}
|
|
rv = 1;
|
|
}
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/* Load data from X86CPUDefinition
|
|
*/
|
|
static void x86_cpu_load_def(X86CPU *cpu, X86CPUDefinition *def, Error **errp)
|
|
{
|
|
CPUX86State *env = &cpu->env;
|
|
const char *vendor;
|
|
char host_vendor[CPUID_VENDOR_SZ + 1];
|
|
FeatureWord w;
|
|
|
|
object_property_set_int(OBJECT(cpu), def->level, "level", errp);
|
|
object_property_set_int(OBJECT(cpu), def->family, "family", errp);
|
|
object_property_set_int(OBJECT(cpu), def->model, "model", errp);
|
|
object_property_set_int(OBJECT(cpu), def->stepping, "stepping", errp);
|
|
object_property_set_int(OBJECT(cpu), def->xlevel, "xlevel", errp);
|
|
env->cpuid_xlevel2 = def->xlevel2;
|
|
cpu->cache_info_passthrough = def->cache_info_passthrough;
|
|
object_property_set_str(OBJECT(cpu), def->model_id, "model-id", errp);
|
|
for (w = 0; w < FEATURE_WORDS; w++) {
|
|
env->features[w] = def->features[w];
|
|
}
|
|
|
|
/* Special cases not set in the X86CPUDefinition structs: */
|
|
if (kvm_enabled()) {
|
|
FeatureWord w;
|
|
for (w = 0; w < FEATURE_WORDS; w++) {
|
|
env->features[w] |= kvm_default_features[w];
|
|
env->features[w] &= ~kvm_default_unset_features[w];
|
|
}
|
|
}
|
|
|
|
env->features[FEAT_1_ECX] |= CPUID_EXT_HYPERVISOR;
|
|
|
|
/* sysenter isn't supported in compatibility mode on AMD,
|
|
* syscall isn't supported in compatibility mode on Intel.
|
|
* Normally we advertise the actual CPU vendor, but you can
|
|
* override this using the 'vendor' property if you want to use
|
|
* KVM's sysenter/syscall emulation in compatibility mode and
|
|
* when doing cross vendor migration
|
|
*/
|
|
vendor = def->vendor;
|
|
if (kvm_enabled()) {
|
|
uint32_t ebx = 0, ecx = 0, edx = 0;
|
|
host_cpuid(0, 0, NULL, &ebx, &ecx, &edx);
|
|
x86_cpu_vendor_words2str(host_vendor, ebx, edx, ecx);
|
|
vendor = host_vendor;
|
|
}
|
|
|
|
object_property_set_str(OBJECT(cpu), vendor, "vendor", errp);
|
|
|
|
}
|
|
|
|
X86CPU *cpu_x86_create(const char *cpu_model, DeviceState *icc_bridge,
|
|
Error **errp)
|
|
{
|
|
X86CPU *cpu = NULL;
|
|
X86CPUClass *xcc;
|
|
ObjectClass *oc;
|
|
gchar **model_pieces;
|
|
char *name, *features;
|
|
Error *error = NULL;
|
|
|
|
model_pieces = g_strsplit(cpu_model, ",", 2);
|
|
if (!model_pieces[0]) {
|
|
error_setg(&error, "Invalid/empty CPU model name");
|
|
goto out;
|
|
}
|
|
name = model_pieces[0];
|
|
features = model_pieces[1];
|
|
|
|
oc = x86_cpu_class_by_name(name);
|
|
if (oc == NULL) {
|
|
error_setg(&error, "Unable to find CPU definition: %s", name);
|
|
goto out;
|
|
}
|
|
xcc = X86_CPU_CLASS(oc);
|
|
|
|
if (xcc->kvm_required && !kvm_enabled()) {
|
|
error_setg(&error, "CPU model '%s' requires KVM", name);
|
|
goto out;
|
|
}
|
|
|
|
cpu = X86_CPU(object_new(object_class_get_name(oc)));
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
if (icc_bridge == NULL) {
|
|
error_setg(&error, "Invalid icc-bridge value");
|
|
goto out;
|
|
}
|
|
qdev_set_parent_bus(DEVICE(cpu), qdev_get_child_bus(icc_bridge, "icc"));
|
|
object_unref(OBJECT(cpu));
|
|
#endif
|
|
|
|
x86_cpu_parse_featurestr(CPU(cpu), features, &error);
|
|
if (error) {
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
if (error != NULL) {
|
|
error_propagate(errp, error);
|
|
if (cpu) {
|
|
object_unref(OBJECT(cpu));
|
|
cpu = NULL;
|
|
}
|
|
}
|
|
g_strfreev(model_pieces);
|
|
return cpu;
|
|
}
|
|
|
|
X86CPU *cpu_x86_init(const char *cpu_model)
|
|
{
|
|
Error *error = NULL;
|
|
X86CPU *cpu;
|
|
|
|
cpu = cpu_x86_create(cpu_model, NULL, &error);
|
|
if (error) {
|
|
goto out;
|
|
}
|
|
|
|
object_property_set_bool(OBJECT(cpu), true, "realized", &error);
|
|
|
|
out:
|
|
if (error) {
|
|
error_report("%s", error_get_pretty(error));
|
|
error_free(error);
|
|
if (cpu != NULL) {
|
|
object_unref(OBJECT(cpu));
|
|
cpu = NULL;
|
|
}
|
|
}
|
|
return cpu;
|
|
}
|
|
|
|
static void x86_cpu_cpudef_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
X86CPUDefinition *cpudef = data;
|
|
X86CPUClass *xcc = X86_CPU_CLASS(oc);
|
|
|
|
xcc->cpu_def = cpudef;
|
|
}
|
|
|
|
static void x86_register_cpudef_type(X86CPUDefinition *def)
|
|
{
|
|
char *typename = x86_cpu_type_name(def->name);
|
|
TypeInfo ti = {
|
|
.name = typename,
|
|
.parent = TYPE_X86_CPU,
|
|
.class_init = x86_cpu_cpudef_class_init,
|
|
.class_data = def,
|
|
};
|
|
|
|
type_register(&ti);
|
|
g_free(typename);
|
|
}
|
|
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
|
|
void cpu_clear_apic_feature(CPUX86State *env)
|
|
{
|
|
env->features[FEAT_1_EDX] &= ~CPUID_APIC;
|
|
}
|
|
|
|
#endif /* !CONFIG_USER_ONLY */
|
|
|
|
/* Initialize list of CPU models, filling some non-static fields if necessary
|
|
*/
|
|
void x86_cpudef_setup(void)
|
|
{
|
|
int i, j;
|
|
static const char *model_with_versions[] = { "qemu32", "qemu64", "athlon" };
|
|
|
|
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); ++i) {
|
|
X86CPUDefinition *def = &builtin_x86_defs[i];
|
|
|
|
/* Look for specific "cpudef" models that */
|
|
/* have the QEMU version in .model_id */
|
|
for (j = 0; j < ARRAY_SIZE(model_with_versions); j++) {
|
|
if (strcmp(model_with_versions[j], def->name) == 0) {
|
|
pstrcpy(def->model_id, sizeof(def->model_id),
|
|
"QEMU Virtual CPU version ");
|
|
pstrcat(def->model_id, sizeof(def->model_id),
|
|
qemu_get_version());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void get_cpuid_vendor(CPUX86State *env, uint32_t *ebx,
|
|
uint32_t *ecx, uint32_t *edx)
|
|
{
|
|
*ebx = env->cpuid_vendor1;
|
|
*edx = env->cpuid_vendor2;
|
|
*ecx = env->cpuid_vendor3;
|
|
}
|
|
|
|
void cpu_x86_cpuid(CPUX86State *env, uint32_t index, uint32_t count,
|
|
uint32_t *eax, uint32_t *ebx,
|
|
uint32_t *ecx, uint32_t *edx)
|
|
{
|
|
X86CPU *cpu = x86_env_get_cpu(env);
|
|
CPUState *cs = CPU(cpu);
|
|
|
|
/* test if maximum index reached */
|
|
if (index & 0x80000000) {
|
|
if (index > env->cpuid_xlevel) {
|
|
if (env->cpuid_xlevel2 > 0) {
|
|
/* Handle the Centaur's CPUID instruction. */
|
|
if (index > env->cpuid_xlevel2) {
|
|
index = env->cpuid_xlevel2;
|
|
} else if (index < 0xC0000000) {
|
|
index = env->cpuid_xlevel;
|
|
}
|
|
} else {
|
|
/* Intel documentation states that invalid EAX input will
|
|
* return the same information as EAX=cpuid_level
|
|
* (Intel SDM Vol. 2A - Instruction Set Reference - CPUID)
|
|
*/
|
|
index = env->cpuid_level;
|
|
}
|
|
}
|
|
} else {
|
|
if (index > env->cpuid_level)
|
|
index = env->cpuid_level;
|
|
}
|
|
|
|
switch(index) {
|
|
case 0:
|
|
*eax = env->cpuid_level;
|
|
get_cpuid_vendor(env, ebx, ecx, edx);
|
|
break;
|
|
case 1:
|
|
*eax = env->cpuid_version;
|
|
*ebx = (env->cpuid_apic_id << 24) | 8 << 8; /* CLFLUSH size in quad words, Linux wants it. */
|
|
*ecx = env->features[FEAT_1_ECX];
|
|
*edx = env->features[FEAT_1_EDX];
|
|
if (cs->nr_cores * cs->nr_threads > 1) {
|
|
*ebx |= (cs->nr_cores * cs->nr_threads) << 16;
|
|
*edx |= 1 << 28; /* HTT bit */
|
|
}
|
|
break;
|
|
case 2:
|
|
/* cache info: needed for Pentium Pro compatibility */
|
|
if (cpu->cache_info_passthrough) {
|
|
host_cpuid(index, 0, eax, ebx, ecx, edx);
|
|
break;
|
|
}
|
|
*eax = 1; /* Number of CPUID[EAX=2] calls required */
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = (L1D_DESCRIPTOR << 16) | \
|
|
(L1I_DESCRIPTOR << 8) | \
|
|
(L2_DESCRIPTOR);
|
|
break;
|
|
case 4:
|
|
/* cache info: needed for Core compatibility */
|
|
if (cpu->cache_info_passthrough) {
|
|
host_cpuid(index, count, eax, ebx, ecx, edx);
|
|
*eax &= ~0xFC000000;
|
|
} else {
|
|
*eax = 0;
|
|
switch (count) {
|
|
case 0: /* L1 dcache info */
|
|
*eax |= CPUID_4_TYPE_DCACHE | \
|
|
CPUID_4_LEVEL(1) | \
|
|
CPUID_4_SELF_INIT_LEVEL;
|
|
*ebx = (L1D_LINE_SIZE - 1) | \
|
|
((L1D_PARTITIONS - 1) << 12) | \
|
|
((L1D_ASSOCIATIVITY - 1) << 22);
|
|
*ecx = L1D_SETS - 1;
|
|
*edx = CPUID_4_NO_INVD_SHARING;
|
|
break;
|
|
case 1: /* L1 icache info */
|
|
*eax |= CPUID_4_TYPE_ICACHE | \
|
|
CPUID_4_LEVEL(1) | \
|
|
CPUID_4_SELF_INIT_LEVEL;
|
|
*ebx = (L1I_LINE_SIZE - 1) | \
|
|
((L1I_PARTITIONS - 1) << 12) | \
|
|
((L1I_ASSOCIATIVITY - 1) << 22);
|
|
*ecx = L1I_SETS - 1;
|
|
*edx = CPUID_4_NO_INVD_SHARING;
|
|
break;
|
|
case 2: /* L2 cache info */
|
|
*eax |= CPUID_4_TYPE_UNIFIED | \
|
|
CPUID_4_LEVEL(2) | \
|
|
CPUID_4_SELF_INIT_LEVEL;
|
|
if (cs->nr_threads > 1) {
|
|
*eax |= (cs->nr_threads - 1) << 14;
|
|
}
|
|
*ebx = (L2_LINE_SIZE - 1) | \
|
|
((L2_PARTITIONS - 1) << 12) | \
|
|
((L2_ASSOCIATIVITY - 1) << 22);
|
|
*ecx = L2_SETS - 1;
|
|
*edx = CPUID_4_NO_INVD_SHARING;
|
|
break;
|
|
default: /* end of info */
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* QEMU gives out its own APIC IDs, never pass down bits 31..26. */
|
|
if ((*eax & 31) && cs->nr_cores > 1) {
|
|
*eax |= (cs->nr_cores - 1) << 26;
|
|
}
|
|
break;
|
|
case 5:
|
|
/* mwait info: needed for Core compatibility */
|
|
*eax = 0; /* Smallest monitor-line size in bytes */
|
|
*ebx = 0; /* Largest monitor-line size in bytes */
|
|
*ecx = CPUID_MWAIT_EMX | CPUID_MWAIT_IBE;
|
|
*edx = 0;
|
|
break;
|
|
case 6:
|
|
/* Thermal and Power Leaf */
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
break;
|
|
case 7:
|
|
/* Structured Extended Feature Flags Enumeration Leaf */
|
|
if (count == 0) {
|
|
*eax = 0; /* Maximum ECX value for sub-leaves */
|
|
*ebx = env->features[FEAT_7_0_EBX]; /* Feature flags */
|
|
*ecx = 0; /* Reserved */
|
|
*edx = 0; /* Reserved */
|
|
} else {
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
}
|
|
break;
|
|
case 9:
|
|
/* Direct Cache Access Information Leaf */
|
|
*eax = 0; /* Bits 0-31 in DCA_CAP MSR */
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
break;
|
|
case 0xA:
|
|
/* Architectural Performance Monitoring Leaf */
|
|
if (kvm_enabled() && cpu->enable_pmu) {
|
|
KVMState *s = cs->kvm_state;
|
|
|
|
*eax = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EAX);
|
|
*ebx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EBX);
|
|
*ecx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_ECX);
|
|
*edx = kvm_arch_get_supported_cpuid(s, 0xA, count, R_EDX);
|
|
} else {
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
}
|
|
break;
|
|
case 0xD: {
|
|
KVMState *s = cs->kvm_state;
|
|
uint64_t kvm_mask;
|
|
int i;
|
|
|
|
/* Processor Extended State */
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
if (!(env->features[FEAT_1_ECX] & CPUID_EXT_XSAVE) || !kvm_enabled()) {
|
|
break;
|
|
}
|
|
kvm_mask =
|
|
kvm_arch_get_supported_cpuid(s, 0xd, 0, R_EAX) |
|
|
((uint64_t)kvm_arch_get_supported_cpuid(s, 0xd, 0, R_EDX) << 32);
|
|
|
|
if (count == 0) {
|
|
*ecx = 0x240;
|
|
for (i = 2; i < ARRAY_SIZE(ext_save_areas); i++) {
|
|
const ExtSaveArea *esa = &ext_save_areas[i];
|
|
if ((env->features[esa->feature] & esa->bits) == esa->bits &&
|
|
(kvm_mask & (1 << i)) != 0) {
|
|
if (i < 32) {
|
|
*eax |= 1 << i;
|
|
} else {
|
|
*edx |= 1 << (i - 32);
|
|
}
|
|
*ecx = MAX(*ecx, esa->offset + esa->size);
|
|
}
|
|
}
|
|
*eax |= kvm_mask & (XSTATE_FP | XSTATE_SSE);
|
|
*ebx = *ecx;
|
|
} else if (count == 1) {
|
|
*eax = kvm_arch_get_supported_cpuid(s, 0xd, 1, R_EAX);
|
|
} else if (count < ARRAY_SIZE(ext_save_areas)) {
|
|
const ExtSaveArea *esa = &ext_save_areas[count];
|
|
if ((env->features[esa->feature] & esa->bits) == esa->bits &&
|
|
(kvm_mask & (1 << count)) != 0) {
|
|
*eax = esa->size;
|
|
*ebx = esa->offset;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case 0x80000000:
|
|
*eax = env->cpuid_xlevel;
|
|
*ebx = env->cpuid_vendor1;
|
|
*edx = env->cpuid_vendor2;
|
|
*ecx = env->cpuid_vendor3;
|
|
break;
|
|
case 0x80000001:
|
|
*eax = env->cpuid_version;
|
|
*ebx = 0;
|
|
*ecx = env->features[FEAT_8000_0001_ECX];
|
|
*edx = env->features[FEAT_8000_0001_EDX];
|
|
|
|
/* The Linux kernel checks for the CMPLegacy bit and
|
|
* discards multiple thread information if it is set.
|
|
* So dont set it here for Intel to make Linux guests happy.
|
|
*/
|
|
if (cs->nr_cores * cs->nr_threads > 1) {
|
|
uint32_t tebx, tecx, tedx;
|
|
get_cpuid_vendor(env, &tebx, &tecx, &tedx);
|
|
if (tebx != CPUID_VENDOR_INTEL_1 ||
|
|
tedx != CPUID_VENDOR_INTEL_2 ||
|
|
tecx != CPUID_VENDOR_INTEL_3) {
|
|
*ecx |= 1 << 1; /* CmpLegacy bit */
|
|
}
|
|
}
|
|
break;
|
|
case 0x80000002:
|
|
case 0x80000003:
|
|
case 0x80000004:
|
|
*eax = env->cpuid_model[(index - 0x80000002) * 4 + 0];
|
|
*ebx = env->cpuid_model[(index - 0x80000002) * 4 + 1];
|
|
*ecx = env->cpuid_model[(index - 0x80000002) * 4 + 2];
|
|
*edx = env->cpuid_model[(index - 0x80000002) * 4 + 3];
|
|
break;
|
|
case 0x80000005:
|
|
/* cache info (L1 cache) */
|
|
if (cpu->cache_info_passthrough) {
|
|
host_cpuid(index, 0, eax, ebx, ecx, edx);
|
|
break;
|
|
}
|
|
*eax = (L1_DTLB_2M_ASSOC << 24) | (L1_DTLB_2M_ENTRIES << 16) | \
|
|
(L1_ITLB_2M_ASSOC << 8) | (L1_ITLB_2M_ENTRIES);
|
|
*ebx = (L1_DTLB_4K_ASSOC << 24) | (L1_DTLB_4K_ENTRIES << 16) | \
|
|
(L1_ITLB_4K_ASSOC << 8) | (L1_ITLB_4K_ENTRIES);
|
|
*ecx = (L1D_SIZE_KB_AMD << 24) | (L1D_ASSOCIATIVITY_AMD << 16) | \
|
|
(L1D_LINES_PER_TAG << 8) | (L1D_LINE_SIZE);
|
|
*edx = (L1I_SIZE_KB_AMD << 24) | (L1I_ASSOCIATIVITY_AMD << 16) | \
|
|
(L1I_LINES_PER_TAG << 8) | (L1I_LINE_SIZE);
|
|
break;
|
|
case 0x80000006:
|
|
/* cache info (L2 cache) */
|
|
if (cpu->cache_info_passthrough) {
|
|
host_cpuid(index, 0, eax, ebx, ecx, edx);
|
|
break;
|
|
}
|
|
*eax = (AMD_ENC_ASSOC(L2_DTLB_2M_ASSOC) << 28) | \
|
|
(L2_DTLB_2M_ENTRIES << 16) | \
|
|
(AMD_ENC_ASSOC(L2_ITLB_2M_ASSOC) << 12) | \
|
|
(L2_ITLB_2M_ENTRIES);
|
|
*ebx = (AMD_ENC_ASSOC(L2_DTLB_4K_ASSOC) << 28) | \
|
|
(L2_DTLB_4K_ENTRIES << 16) | \
|
|
(AMD_ENC_ASSOC(L2_ITLB_4K_ASSOC) << 12) | \
|
|
(L2_ITLB_4K_ENTRIES);
|
|
*ecx = (L2_SIZE_KB_AMD << 16) | \
|
|
(AMD_ENC_ASSOC(L2_ASSOCIATIVITY) << 12) | \
|
|
(L2_LINES_PER_TAG << 8) | (L2_LINE_SIZE);
|
|
*edx = ((L3_SIZE_KB/512) << 18) | \
|
|
(AMD_ENC_ASSOC(L3_ASSOCIATIVITY) << 12) | \
|
|
(L3_LINES_PER_TAG << 8) | (L3_LINE_SIZE);
|
|
break;
|
|
case 0x80000007:
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = env->features[FEAT_8000_0007_EDX];
|
|
break;
|
|
case 0x80000008:
|
|
/* virtual & phys address size in low 2 bytes. */
|
|
/* XXX: This value must match the one used in the MMU code. */
|
|
if (env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM) {
|
|
/* 64 bit processor */
|
|
/* XXX: The physical address space is limited to 42 bits in exec.c. */
|
|
*eax = 0x00003028; /* 48 bits virtual, 40 bits physical */
|
|
} else {
|
|
if (env->features[FEAT_1_EDX] & CPUID_PSE36) {
|
|
*eax = 0x00000024; /* 36 bits physical */
|
|
} else {
|
|
*eax = 0x00000020; /* 32 bits physical */
|
|
}
|
|
}
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
if (cs->nr_cores * cs->nr_threads > 1) {
|
|
*ecx |= (cs->nr_cores * cs->nr_threads) - 1;
|
|
}
|
|
break;
|
|
case 0x8000000A:
|
|
if (env->features[FEAT_8000_0001_ECX] & CPUID_EXT3_SVM) {
|
|
*eax = 0x00000001; /* SVM Revision */
|
|
*ebx = 0x00000010; /* nr of ASIDs */
|
|
*ecx = 0;
|
|
*edx = env->features[FEAT_SVM]; /* optional features */
|
|
} else {
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
}
|
|
break;
|
|
case 0xC0000000:
|
|
*eax = env->cpuid_xlevel2;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
break;
|
|
case 0xC0000001:
|
|
/* Support for VIA CPU's CPUID instruction */
|
|
*eax = env->cpuid_version;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = env->features[FEAT_C000_0001_EDX];
|
|
break;
|
|
case 0xC0000002:
|
|
case 0xC0000003:
|
|
case 0xC0000004:
|
|
/* Reserved for the future, and now filled with zero */
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
break;
|
|
default:
|
|
/* reserved values: zero */
|
|
*eax = 0;
|
|
*ebx = 0;
|
|
*ecx = 0;
|
|
*edx = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* CPUClass::reset() */
|
|
static void x86_cpu_reset(CPUState *s)
|
|
{
|
|
X86CPU *cpu = X86_CPU(s);
|
|
X86CPUClass *xcc = X86_CPU_GET_CLASS(cpu);
|
|
CPUX86State *env = &cpu->env;
|
|
int i;
|
|
|
|
xcc->parent_reset(s);
|
|
|
|
memset(env, 0, offsetof(CPUX86State, cpuid_level));
|
|
|
|
tlb_flush(s, 1);
|
|
|
|
env->old_exception = -1;
|
|
|
|
/* init to reset state */
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
env->hflags |= HF_SOFTMMU_MASK;
|
|
#endif
|
|
env->hflags2 |= HF2_GIF_MASK;
|
|
|
|
cpu_x86_update_cr0(env, 0x60000010);
|
|
env->a20_mask = ~0x0;
|
|
env->smbase = 0x30000;
|
|
|
|
env->idt.limit = 0xffff;
|
|
env->gdt.limit = 0xffff;
|
|
env->ldt.limit = 0xffff;
|
|
env->ldt.flags = DESC_P_MASK | (2 << DESC_TYPE_SHIFT);
|
|
env->tr.limit = 0xffff;
|
|
env->tr.flags = DESC_P_MASK | (11 << DESC_TYPE_SHIFT);
|
|
|
|
cpu_x86_load_seg_cache(env, R_CS, 0xf000, 0xffff0000, 0xffff,
|
|
DESC_P_MASK | DESC_S_MASK | DESC_CS_MASK |
|
|
DESC_R_MASK | DESC_A_MASK);
|
|
cpu_x86_load_seg_cache(env, R_DS, 0, 0, 0xffff,
|
|
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
|
|
DESC_A_MASK);
|
|
cpu_x86_load_seg_cache(env, R_ES, 0, 0, 0xffff,
|
|
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
|
|
DESC_A_MASK);
|
|
cpu_x86_load_seg_cache(env, R_SS, 0, 0, 0xffff,
|
|
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
|
|
DESC_A_MASK);
|
|
cpu_x86_load_seg_cache(env, R_FS, 0, 0, 0xffff,
|
|
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
|
|
DESC_A_MASK);
|
|
cpu_x86_load_seg_cache(env, R_GS, 0, 0, 0xffff,
|
|
DESC_P_MASK | DESC_S_MASK | DESC_W_MASK |
|
|
DESC_A_MASK);
|
|
|
|
env->eip = 0xfff0;
|
|
env->regs[R_EDX] = env->cpuid_version;
|
|
|
|
env->eflags = 0x2;
|
|
|
|
/* FPU init */
|
|
for (i = 0; i < 8; i++) {
|
|
env->fptags[i] = 1;
|
|
}
|
|
cpu_set_fpuc(env, 0x37f);
|
|
|
|
env->mxcsr = 0x1f80;
|
|
env->xstate_bv = XSTATE_FP | XSTATE_SSE;
|
|
|
|
env->pat = 0x0007040600070406ULL;
|
|
env->msr_ia32_misc_enable = MSR_IA32_MISC_ENABLE_DEFAULT;
|
|
|
|
memset(env->dr, 0, sizeof(env->dr));
|
|
env->dr[6] = DR6_FIXED_1;
|
|
env->dr[7] = DR7_FIXED_1;
|
|
cpu_breakpoint_remove_all(s, BP_CPU);
|
|
cpu_watchpoint_remove_all(s, BP_CPU);
|
|
|
|
env->xcr0 = 1;
|
|
|
|
/*
|
|
* SDM 11.11.5 requires:
|
|
* - IA32_MTRR_DEF_TYPE MSR.E = 0
|
|
* - IA32_MTRR_PHYSMASKn.V = 0
|
|
* All other bits are undefined. For simplification, zero it all.
|
|
*/
|
|
env->mtrr_deftype = 0;
|
|
memset(env->mtrr_var, 0, sizeof(env->mtrr_var));
|
|
memset(env->mtrr_fixed, 0, sizeof(env->mtrr_fixed));
|
|
|
|
#if !defined(CONFIG_USER_ONLY)
|
|
/* We hard-wire the BSP to the first CPU. */
|
|
if (s->cpu_index == 0) {
|
|
apic_designate_bsp(cpu->apic_state);
|
|
}
|
|
|
|
s->halted = !cpu_is_bsp(cpu);
|
|
|
|
if (kvm_enabled()) {
|
|
kvm_arch_reset_vcpu(cpu);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
bool cpu_is_bsp(X86CPU *cpu)
|
|
{
|
|
return cpu_get_apic_base(cpu->apic_state) & MSR_IA32_APICBASE_BSP;
|
|
}
|
|
|
|
/* TODO: remove me, when reset over QOM tree is implemented */
|
|
static void x86_cpu_machine_reset_cb(void *opaque)
|
|
{
|
|
X86CPU *cpu = opaque;
|
|
cpu_reset(CPU(cpu));
|
|
}
|
|
#endif
|
|
|
|
static void mce_init(X86CPU *cpu)
|
|
{
|
|
CPUX86State *cenv = &cpu->env;
|
|
unsigned int bank;
|
|
|
|
if (((cenv->cpuid_version >> 8) & 0xf) >= 6
|
|
&& (cenv->features[FEAT_1_EDX] & (CPUID_MCE | CPUID_MCA)) ==
|
|
(CPUID_MCE | CPUID_MCA)) {
|
|
cenv->mcg_cap = MCE_CAP_DEF | MCE_BANKS_DEF;
|
|
cenv->mcg_ctl = ~(uint64_t)0;
|
|
for (bank = 0; bank < MCE_BANKS_DEF; bank++) {
|
|
cenv->mce_banks[bank * 4] = ~(uint64_t)0;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
static void x86_cpu_apic_create(X86CPU *cpu, Error **errp)
|
|
{
|
|
CPUX86State *env = &cpu->env;
|
|
DeviceState *dev = DEVICE(cpu);
|
|
APICCommonState *apic;
|
|
const char *apic_type = "apic";
|
|
|
|
if (kvm_irqchip_in_kernel()) {
|
|
apic_type = "kvm-apic";
|
|
} else if (xen_enabled()) {
|
|
apic_type = "xen-apic";
|
|
}
|
|
|
|
cpu->apic_state = qdev_try_create(qdev_get_parent_bus(dev), apic_type);
|
|
if (cpu->apic_state == NULL) {
|
|
error_setg(errp, "APIC device '%s' could not be created", apic_type);
|
|
return;
|
|
}
|
|
|
|
object_property_add_child(OBJECT(cpu), "apic",
|
|
OBJECT(cpu->apic_state), NULL);
|
|
qdev_prop_set_uint8(cpu->apic_state, "id", env->cpuid_apic_id);
|
|
/* TODO: convert to link<> */
|
|
apic = APIC_COMMON(cpu->apic_state);
|
|
apic->cpu = cpu;
|
|
}
|
|
|
|
static void x86_cpu_apic_realize(X86CPU *cpu, Error **errp)
|
|
{
|
|
if (cpu->apic_state == NULL) {
|
|
return;
|
|
}
|
|
|
|
if (qdev_init(cpu->apic_state)) {
|
|
error_setg(errp, "APIC device '%s' could not be initialized",
|
|
object_get_typename(OBJECT(cpu->apic_state)));
|
|
return;
|
|
}
|
|
}
|
|
#else
|
|
static void x86_cpu_apic_realize(X86CPU *cpu, Error **errp)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static void x86_cpu_realizefn(DeviceState *dev, Error **errp)
|
|
{
|
|
CPUState *cs = CPU(dev);
|
|
X86CPU *cpu = X86_CPU(dev);
|
|
X86CPUClass *xcc = X86_CPU_GET_CLASS(dev);
|
|
CPUX86State *env = &cpu->env;
|
|
Error *local_err = NULL;
|
|
|
|
if (env->features[FEAT_7_0_EBX] && env->cpuid_level < 7) {
|
|
env->cpuid_level = 7;
|
|
}
|
|
|
|
/* On AMD CPUs, some CPUID[8000_0001].EDX bits must match the bits on
|
|
* CPUID[1].EDX.
|
|
*/
|
|
if (env->cpuid_vendor1 == CPUID_VENDOR_AMD_1 &&
|
|
env->cpuid_vendor2 == CPUID_VENDOR_AMD_2 &&
|
|
env->cpuid_vendor3 == CPUID_VENDOR_AMD_3) {
|
|
env->features[FEAT_8000_0001_EDX] &= ~CPUID_EXT2_AMD_ALIASES;
|
|
env->features[FEAT_8000_0001_EDX] |= (env->features[FEAT_1_EDX]
|
|
& CPUID_EXT2_AMD_ALIASES);
|
|
}
|
|
|
|
|
|
if (x86_cpu_filter_features(cpu) && cpu->enforce_cpuid) {
|
|
error_setg(&local_err,
|
|
kvm_enabled() ?
|
|
"Host doesn't support requested features" :
|
|
"TCG doesn't support requested features");
|
|
goto out;
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
qemu_register_reset(x86_cpu_machine_reset_cb, cpu);
|
|
|
|
if (cpu->env.features[FEAT_1_EDX] & CPUID_APIC || smp_cpus > 1) {
|
|
x86_cpu_apic_create(cpu, &local_err);
|
|
if (local_err != NULL) {
|
|
goto out;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
mce_init(cpu);
|
|
qemu_init_vcpu(cs);
|
|
|
|
x86_cpu_apic_realize(cpu, &local_err);
|
|
if (local_err != NULL) {
|
|
goto out;
|
|
}
|
|
cpu_reset(cs);
|
|
|
|
xcc->parent_realize(dev, &local_err);
|
|
out:
|
|
if (local_err != NULL) {
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Enables contiguous-apic-ID mode, for compatibility */
|
|
static bool compat_apic_id_mode;
|
|
|
|
void enable_compat_apic_id_mode(void)
|
|
{
|
|
compat_apic_id_mode = true;
|
|
}
|
|
|
|
/* Calculates initial APIC ID for a specific CPU index
|
|
*
|
|
* Currently we need to be able to calculate the APIC ID from the CPU index
|
|
* alone (without requiring a CPU object), as the QEMU<->Seabios interfaces have
|
|
* no concept of "CPU index", and the NUMA tables on fw_cfg need the APIC ID of
|
|
* all CPUs up to max_cpus.
|
|
*/
|
|
uint32_t x86_cpu_apic_id_from_index(unsigned int cpu_index)
|
|
{
|
|
uint32_t correct_id;
|
|
static bool warned;
|
|
|
|
correct_id = x86_apicid_from_cpu_idx(smp_cores, smp_threads, cpu_index);
|
|
if (compat_apic_id_mode) {
|
|
if (cpu_index != correct_id && !warned) {
|
|
error_report("APIC IDs set in compatibility mode, "
|
|
"CPU topology won't match the configuration");
|
|
warned = true;
|
|
}
|
|
return cpu_index;
|
|
} else {
|
|
return correct_id;
|
|
}
|
|
}
|
|
|
|
static void x86_cpu_initfn(Object *obj)
|
|
{
|
|
CPUState *cs = CPU(obj);
|
|
X86CPU *cpu = X86_CPU(obj);
|
|
X86CPUClass *xcc = X86_CPU_GET_CLASS(obj);
|
|
CPUX86State *env = &cpu->env;
|
|
static int inited;
|
|
|
|
cs->env_ptr = env;
|
|
cpu_exec_init(env);
|
|
|
|
object_property_add(obj, "family", "int",
|
|
x86_cpuid_version_get_family,
|
|
x86_cpuid_version_set_family, NULL, NULL, NULL);
|
|
object_property_add(obj, "model", "int",
|
|
x86_cpuid_version_get_model,
|
|
x86_cpuid_version_set_model, NULL, NULL, NULL);
|
|
object_property_add(obj, "stepping", "int",
|
|
x86_cpuid_version_get_stepping,
|
|
x86_cpuid_version_set_stepping, NULL, NULL, NULL);
|
|
object_property_add(obj, "level", "int",
|
|
x86_cpuid_get_level,
|
|
x86_cpuid_set_level, NULL, NULL, NULL);
|
|
object_property_add(obj, "xlevel", "int",
|
|
x86_cpuid_get_xlevel,
|
|
x86_cpuid_set_xlevel, NULL, NULL, NULL);
|
|
object_property_add_str(obj, "vendor",
|
|
x86_cpuid_get_vendor,
|
|
x86_cpuid_set_vendor, NULL);
|
|
object_property_add_str(obj, "model-id",
|
|
x86_cpuid_get_model_id,
|
|
x86_cpuid_set_model_id, NULL);
|
|
object_property_add(obj, "tsc-frequency", "int",
|
|
x86_cpuid_get_tsc_freq,
|
|
x86_cpuid_set_tsc_freq, NULL, NULL, NULL);
|
|
object_property_add(obj, "apic-id", "int",
|
|
x86_cpuid_get_apic_id,
|
|
x86_cpuid_set_apic_id, NULL, NULL, NULL);
|
|
object_property_add(obj, "feature-words", "X86CPUFeatureWordInfo",
|
|
x86_cpu_get_feature_words,
|
|
NULL, NULL, (void *)env->features, NULL);
|
|
object_property_add(obj, "filtered-features", "X86CPUFeatureWordInfo",
|
|
x86_cpu_get_feature_words,
|
|
NULL, NULL, (void *)cpu->filtered_features, NULL);
|
|
|
|
cpu->hyperv_spinlock_attempts = HYPERV_SPINLOCK_NEVER_RETRY;
|
|
env->cpuid_apic_id = x86_cpu_apic_id_from_index(cs->cpu_index);
|
|
|
|
x86_cpu_load_def(cpu, xcc->cpu_def, &error_abort);
|
|
|
|
/* init various static tables used in TCG mode */
|
|
if (tcg_enabled() && !inited) {
|
|
inited = 1;
|
|
optimize_flags_init();
|
|
}
|
|
}
|
|
|
|
static int64_t x86_cpu_get_arch_id(CPUState *cs)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
return env->cpuid_apic_id;
|
|
}
|
|
|
|
static bool x86_cpu_get_paging_enabled(const CPUState *cs)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
|
|
return cpu->env.cr[0] & CR0_PG_MASK;
|
|
}
|
|
|
|
static void x86_cpu_set_pc(CPUState *cs, vaddr value)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
|
|
cpu->env.eip = value;
|
|
}
|
|
|
|
static void x86_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
|
|
cpu->env.eip = tb->pc - tb->cs_base;
|
|
}
|
|
|
|
static bool x86_cpu_has_work(CPUState *cs)
|
|
{
|
|
X86CPU *cpu = X86_CPU(cs);
|
|
CPUX86State *env = &cpu->env;
|
|
|
|
return ((cs->interrupt_request & (CPU_INTERRUPT_HARD |
|
|
CPU_INTERRUPT_POLL)) &&
|
|
(env->eflags & IF_MASK)) ||
|
|
(cs->interrupt_request & (CPU_INTERRUPT_NMI |
|
|
CPU_INTERRUPT_INIT |
|
|
CPU_INTERRUPT_SIPI |
|
|
CPU_INTERRUPT_MCE));
|
|
}
|
|
|
|
static Property x86_cpu_properties[] = {
|
|
DEFINE_PROP_BOOL("pmu", X86CPU, enable_pmu, false),
|
|
{ .name = "hv-spinlocks", .info = &qdev_prop_spinlocks },
|
|
DEFINE_PROP_BOOL("hv-relaxed", X86CPU, hyperv_relaxed_timing, false),
|
|
DEFINE_PROP_BOOL("hv-vapic", X86CPU, hyperv_vapic, false),
|
|
DEFINE_PROP_BOOL("hv-time", X86CPU, hyperv_time, false),
|
|
DEFINE_PROP_BOOL("check", X86CPU, check_cpuid, false),
|
|
DEFINE_PROP_BOOL("enforce", X86CPU, enforce_cpuid, false),
|
|
DEFINE_PROP_BOOL("kvm", X86CPU, expose_kvm, true),
|
|
DEFINE_PROP_END_OF_LIST()
|
|
};
|
|
|
|
static void x86_cpu_common_class_init(ObjectClass *oc, void *data)
|
|
{
|
|
X86CPUClass *xcc = X86_CPU_CLASS(oc);
|
|
CPUClass *cc = CPU_CLASS(oc);
|
|
DeviceClass *dc = DEVICE_CLASS(oc);
|
|
|
|
xcc->parent_realize = dc->realize;
|
|
dc->realize = x86_cpu_realizefn;
|
|
dc->bus_type = TYPE_ICC_BUS;
|
|
dc->props = x86_cpu_properties;
|
|
|
|
xcc->parent_reset = cc->reset;
|
|
cc->reset = x86_cpu_reset;
|
|
cc->reset_dump_flags = CPU_DUMP_FPU | CPU_DUMP_CCOP;
|
|
|
|
cc->class_by_name = x86_cpu_class_by_name;
|
|
cc->parse_features = x86_cpu_parse_featurestr;
|
|
cc->has_work = x86_cpu_has_work;
|
|
cc->do_interrupt = x86_cpu_do_interrupt;
|
|
cc->cpu_exec_interrupt = x86_cpu_exec_interrupt;
|
|
cc->dump_state = x86_cpu_dump_state;
|
|
cc->set_pc = x86_cpu_set_pc;
|
|
cc->synchronize_from_tb = x86_cpu_synchronize_from_tb;
|
|
cc->gdb_read_register = x86_cpu_gdb_read_register;
|
|
cc->gdb_write_register = x86_cpu_gdb_write_register;
|
|
cc->get_arch_id = x86_cpu_get_arch_id;
|
|
cc->get_paging_enabled = x86_cpu_get_paging_enabled;
|
|
#ifdef CONFIG_USER_ONLY
|
|
cc->handle_mmu_fault = x86_cpu_handle_mmu_fault;
|
|
#else
|
|
cc->get_memory_mapping = x86_cpu_get_memory_mapping;
|
|
cc->get_phys_page_debug = x86_cpu_get_phys_page_debug;
|
|
cc->write_elf64_note = x86_cpu_write_elf64_note;
|
|
cc->write_elf64_qemunote = x86_cpu_write_elf64_qemunote;
|
|
cc->write_elf32_note = x86_cpu_write_elf32_note;
|
|
cc->write_elf32_qemunote = x86_cpu_write_elf32_qemunote;
|
|
cc->vmsd = &vmstate_x86_cpu;
|
|
#endif
|
|
cc->gdb_num_core_regs = CPU_NB_REGS * 2 + 25;
|
|
#ifndef CONFIG_USER_ONLY
|
|
cc->debug_excp_handler = breakpoint_handler;
|
|
#endif
|
|
cc->cpu_exec_enter = x86_cpu_exec_enter;
|
|
cc->cpu_exec_exit = x86_cpu_exec_exit;
|
|
}
|
|
|
|
static const TypeInfo x86_cpu_type_info = {
|
|
.name = TYPE_X86_CPU,
|
|
.parent = TYPE_CPU,
|
|
.instance_size = sizeof(X86CPU),
|
|
.instance_init = x86_cpu_initfn,
|
|
.abstract = true,
|
|
.class_size = sizeof(X86CPUClass),
|
|
.class_init = x86_cpu_common_class_init,
|
|
};
|
|
|
|
static void x86_cpu_register_types(void)
|
|
{
|
|
int i;
|
|
|
|
type_register_static(&x86_cpu_type_info);
|
|
for (i = 0; i < ARRAY_SIZE(builtin_x86_defs); i++) {
|
|
x86_register_cpudef_type(&builtin_x86_defs[i]);
|
|
}
|
|
#ifdef CONFIG_KVM
|
|
type_register_static(&host_x86_cpu_type_info);
|
|
#endif
|
|
}
|
|
|
|
type_init(x86_cpu_register_types)
|