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https://github.com/xemu-project/xemu.git
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c643603a85
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
182 lines
5.3 KiB
C
182 lines
5.3 KiB
C
/*
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* HPPA interrupt helper routines
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*
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* Copyright (c) 2017 Richard Henderson
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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 "qemu/osdep.h"
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#include "qemu-common.h"
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#include "cpu.h"
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#include "hw/hw.h"
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#include "hw/boards.h"
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#include "migration/cpu.h"
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#if TARGET_REGISTER_BITS == 64
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#define qemu_put_betr qemu_put_be64
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#define qemu_get_betr qemu_get_be64
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#define VMSTATE_UINTTL_V(_f, _s, _v) \
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VMSTATE_UINT64_V(_f, _s, _v)
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#define VMSTATE_UINTTL_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v)
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#else
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#define qemu_put_betr qemu_put_be32
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#define qemu_get_betr qemu_get_be32
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#define VMSTATE_UINTTR_V(_f, _s, _v) \
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VMSTATE_UINT32_V(_f, _s, _v)
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#define VMSTATE_UINTTR_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v)
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#endif
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#define VMSTATE_UINTTR(_f, _s) \
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VMSTATE_UINTTR_V(_f, _s, 0)
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#define VMSTATE_UINTTR_ARRAY(_f, _s, _n) \
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VMSTATE_UINTTR_ARRAY_V(_f, _s, _n, 0)
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static int get_psw(QEMUFile *f, void *opaque, size_t size, VMStateField *field)
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{
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CPUHPPAState *env = opaque;
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cpu_hppa_put_psw(env, qemu_get_betr(f));
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return 0;
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}
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static int put_psw(QEMUFile *f, void *opaque, size_t size,
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VMStateField *field, QJSON *vmdesc)
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{
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CPUHPPAState *env = opaque;
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qemu_put_betr(f, cpu_hppa_get_psw(env));
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return 0;
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}
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static const VMStateInfo vmstate_psw = {
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.name = "psw",
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.get = get_psw,
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.put = put_psw,
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};
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/* FIXME: Use the PA2.0 format, which is a superset of the PA1.1 format. */
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static int get_tlb(QEMUFile *f, void *opaque, size_t size, VMStateField *field)
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{
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hppa_tlb_entry *ent = opaque;
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uint32_t val;
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memset(ent, 0, sizeof(*ent));
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ent->va_b = qemu_get_be64(f);
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ent->pa = qemu_get_betr(f);
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val = qemu_get_be32(f);
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ent->entry_valid = extract32(val, 0, 1);
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ent->access_id = extract32(val, 1, 18);
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ent->u = extract32(val, 19, 1);
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ent->ar_pl2 = extract32(val, 20, 2);
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ent->ar_pl1 = extract32(val, 22, 2);
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ent->ar_type = extract32(val, 24, 3);
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ent->b = extract32(val, 27, 1);
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ent->d = extract32(val, 28, 1);
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ent->t = extract32(val, 29, 1);
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ent->va_e = ent->va_b + TARGET_PAGE_SIZE - 1;
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return 0;
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}
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static int put_tlb(QEMUFile *f, void *opaque, size_t size,
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VMStateField *field, QJSON *vmdesc)
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{
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hppa_tlb_entry *ent = opaque;
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uint32_t val = 0;
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if (ent->entry_valid) {
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val = 1;
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val = deposit32(val, 1, 18, ent->access_id);
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val = deposit32(val, 19, 1, ent->u);
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val = deposit32(val, 20, 2, ent->ar_pl2);
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val = deposit32(val, 22, 2, ent->ar_pl1);
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val = deposit32(val, 24, 3, ent->ar_type);
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val = deposit32(val, 27, 1, ent->b);
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val = deposit32(val, 28, 1, ent->d);
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val = deposit32(val, 29, 1, ent->t);
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}
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qemu_put_be64(f, ent->va_b);
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qemu_put_betr(f, ent->pa);
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qemu_put_be32(f, val);
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return 0;
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}
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static const VMStateInfo vmstate_tlb = {
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.name = "tlb entry",
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.get = get_tlb,
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.put = put_tlb,
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};
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static VMStateField vmstate_env_fields[] = {
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VMSTATE_UINTTR_ARRAY(gr, CPUHPPAState, 32),
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VMSTATE_UINT64_ARRAY(fr, CPUHPPAState, 32),
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VMSTATE_UINT64_ARRAY(sr, CPUHPPAState, 8),
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VMSTATE_UINTTR_ARRAY(cr, CPUHPPAState, 32),
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VMSTATE_UINTTR_ARRAY(cr_back, CPUHPPAState, 2),
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VMSTATE_UINTTR_ARRAY(shadow, CPUHPPAState, 7),
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/* Save the architecture value of the psw, not the internally
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expanded version. Since this architecture value does not
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exist in memory to be stored, this requires a but of hoop
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jumping. We want OFFSET=0 so that we effectively pass ENV
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to the helper functions, and we need to fill in the name by
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hand since there's no field of that name. */
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{
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.name = "psw",
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.version_id = 0,
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.size = sizeof(uint64_t),
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.info = &vmstate_psw,
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.flags = VMS_SINGLE,
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.offset = 0
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},
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VMSTATE_UINTTR(iaoq_f, CPUHPPAState),
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VMSTATE_UINTTR(iaoq_b, CPUHPPAState),
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VMSTATE_UINT64(iasq_f, CPUHPPAState),
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VMSTATE_UINT64(iasq_b, CPUHPPAState),
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VMSTATE_UINT32(fr0_shadow, CPUHPPAState),
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VMSTATE_ARRAY(tlb, CPUHPPAState, ARRAY_SIZE(((CPUHPPAState *)0)->tlb),
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0, vmstate_tlb, hppa_tlb_entry),
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VMSTATE_UINT32(tlb_last, CPUHPPAState),
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VMSTATE_END_OF_LIST()
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};
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static const VMStateDescription vmstate_env = {
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.name = "env",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = vmstate_env_fields,
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};
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static VMStateField vmstate_cpu_fields[] = {
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VMSTATE_CPU(),
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VMSTATE_STRUCT(env, HPPACPU, 1, vmstate_env, CPUHPPAState),
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VMSTATE_END_OF_LIST()
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};
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const VMStateDescription vmstate_hppa_cpu = {
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.name = "cpu",
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.version_id = 1,
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.minimum_version_id = 1,
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.fields = vmstate_cpu_fields,
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};
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