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This implements NPT suport for SVM by hooking into x86_cpu_handle_mmu_fault where it reads the stage-1 page table. Whether we need to perform this 2nd stage translation, and how, is decided during vmrun and stored in hflags2, along with nested_cr3 and nested_pg_mode. As get_hphys performs a direct cpu_vmexit in case of NPT faults, we need retaddr in that function. To avoid changing the signature of cpu_handle_mmu_fault, this passes the value from tlb_fill to get_hphys via the CPU state. This was tested successfully via the Jailhouse hypervisor. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Message-Id: <567473a0-6005-5843-4c73-951f476085ca@web.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
237 lines
6.1 KiB
C
237 lines
6.1 KiB
C
#ifndef SVM_H
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#define SVM_H
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#define TLB_CONTROL_DO_NOTHING 0
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#define TLB_CONTROL_FLUSH_ALL_ASID 1
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#define V_TPR_MASK 0x0f
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#define V_IRQ_SHIFT 8
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#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
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#define V_INTR_PRIO_SHIFT 16
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#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
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#define V_IGN_TPR_SHIFT 20
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#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
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#define V_INTR_MASKING_SHIFT 24
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#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
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#define SVM_INTERRUPT_SHADOW_MASK 1
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#define SVM_IOIO_STR_SHIFT 2
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#define SVM_IOIO_REP_SHIFT 3
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#define SVM_IOIO_SIZE_SHIFT 4
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#define SVM_IOIO_ASIZE_SHIFT 7
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#define SVM_IOIO_TYPE_MASK 1
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#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
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#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
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#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
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#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
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#define SVM_EVTINJ_VEC_MASK 0xff
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#define SVM_EVTINJ_TYPE_SHIFT 8
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#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
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#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
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#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
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#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
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#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
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#define SVM_EVTINJ_VALID (1 << 31)
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#define SVM_EVTINJ_VALID_ERR (1 << 11)
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#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
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#define SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
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#define SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
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#define SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
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#define SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
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#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
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#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
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#define SVM_EXIT_READ_CR0 0x000
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#define SVM_EXIT_READ_CR3 0x003
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#define SVM_EXIT_READ_CR4 0x004
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#define SVM_EXIT_READ_CR8 0x008
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#define SVM_EXIT_WRITE_CR0 0x010
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#define SVM_EXIT_WRITE_CR3 0x013
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#define SVM_EXIT_WRITE_CR4 0x014
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#define SVM_EXIT_WRITE_CR8 0x018
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#define SVM_EXIT_READ_DR0 0x020
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#define SVM_EXIT_READ_DR1 0x021
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#define SVM_EXIT_READ_DR2 0x022
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#define SVM_EXIT_READ_DR3 0x023
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#define SVM_EXIT_READ_DR4 0x024
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#define SVM_EXIT_READ_DR5 0x025
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#define SVM_EXIT_READ_DR6 0x026
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#define SVM_EXIT_READ_DR7 0x027
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#define SVM_EXIT_WRITE_DR0 0x030
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#define SVM_EXIT_WRITE_DR1 0x031
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#define SVM_EXIT_WRITE_DR2 0x032
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#define SVM_EXIT_WRITE_DR3 0x033
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#define SVM_EXIT_WRITE_DR4 0x034
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#define SVM_EXIT_WRITE_DR5 0x035
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#define SVM_EXIT_WRITE_DR6 0x036
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#define SVM_EXIT_WRITE_DR7 0x037
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#define SVM_EXIT_EXCP_BASE 0x040
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#define SVM_EXIT_INTR 0x060
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#define SVM_EXIT_NMI 0x061
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#define SVM_EXIT_SMI 0x062
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#define SVM_EXIT_INIT 0x063
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#define SVM_EXIT_VINTR 0x064
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#define SVM_EXIT_CR0_SEL_WRITE 0x065
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#define SVM_EXIT_IDTR_READ 0x066
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#define SVM_EXIT_GDTR_READ 0x067
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#define SVM_EXIT_LDTR_READ 0x068
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#define SVM_EXIT_TR_READ 0x069
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#define SVM_EXIT_IDTR_WRITE 0x06a
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#define SVM_EXIT_GDTR_WRITE 0x06b
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#define SVM_EXIT_LDTR_WRITE 0x06c
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#define SVM_EXIT_TR_WRITE 0x06d
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#define SVM_EXIT_RDTSC 0x06e
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#define SVM_EXIT_RDPMC 0x06f
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#define SVM_EXIT_PUSHF 0x070
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#define SVM_EXIT_POPF 0x071
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#define SVM_EXIT_CPUID 0x072
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#define SVM_EXIT_RSM 0x073
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#define SVM_EXIT_IRET 0x074
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#define SVM_EXIT_SWINT 0x075
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#define SVM_EXIT_INVD 0x076
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#define SVM_EXIT_PAUSE 0x077
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#define SVM_EXIT_HLT 0x078
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#define SVM_EXIT_INVLPG 0x079
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#define SVM_EXIT_INVLPGA 0x07a
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#define SVM_EXIT_IOIO 0x07b
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#define SVM_EXIT_MSR 0x07c
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#define SVM_EXIT_TASK_SWITCH 0x07d
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#define SVM_EXIT_FERR_FREEZE 0x07e
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#define SVM_EXIT_SHUTDOWN 0x07f
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#define SVM_EXIT_VMRUN 0x080
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#define SVM_EXIT_VMMCALL 0x081
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#define SVM_EXIT_VMLOAD 0x082
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#define SVM_EXIT_VMSAVE 0x083
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#define SVM_EXIT_STGI 0x084
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#define SVM_EXIT_CLGI 0x085
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#define SVM_EXIT_SKINIT 0x086
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#define SVM_EXIT_RDTSCP 0x087
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#define SVM_EXIT_ICEBP 0x088
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#define SVM_EXIT_WBINVD 0x089
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/* only included in documentation, maybe wrong */
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#define SVM_EXIT_MONITOR 0x08a
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#define SVM_EXIT_MWAIT 0x08b
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#define SVM_EXIT_NPF 0x400
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#define SVM_EXIT_ERR -1
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#define SVM_CR0_SELECTIVE_MASK (1 << 3 | 1) /* TS and MP */
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#define SVM_NPT_ENABLED (1 << 0)
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#define SVM_NPT_PAE (1 << 0)
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#define SVM_NPT_LMA (1 << 1)
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#define SVM_NPT_NXE (1 << 2)
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#define SVM_NPTEXIT_P (1ULL << 0)
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#define SVM_NPTEXIT_RW (1ULL << 1)
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#define SVM_NPTEXIT_US (1ULL << 2)
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#define SVM_NPTEXIT_RSVD (1ULL << 3)
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#define SVM_NPTEXIT_ID (1ULL << 4)
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#define SVM_NPTEXIT_GPA (1ULL << 32)
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#define SVM_NPTEXIT_GPT (1ULL << 33)
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struct QEMU_PACKED vmcb_control_area {
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uint16_t intercept_cr_read;
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uint16_t intercept_cr_write;
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uint16_t intercept_dr_read;
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uint16_t intercept_dr_write;
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uint32_t intercept_exceptions;
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uint64_t intercept;
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uint8_t reserved_1[44];
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uint64_t iopm_base_pa;
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uint64_t msrpm_base_pa;
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uint64_t tsc_offset;
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uint32_t asid;
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uint8_t tlb_ctl;
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uint8_t reserved_2[3];
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uint32_t int_ctl;
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uint32_t int_vector;
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uint32_t int_state;
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uint8_t reserved_3[4];
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uint64_t exit_code;
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uint64_t exit_info_1;
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uint64_t exit_info_2;
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uint32_t exit_int_info;
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uint32_t exit_int_info_err;
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uint64_t nested_ctl;
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uint8_t reserved_4[16];
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uint32_t event_inj;
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uint32_t event_inj_err;
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uint64_t nested_cr3;
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uint64_t lbr_ctl;
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uint8_t reserved_5[832];
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};
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struct QEMU_PACKED vmcb_seg {
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uint16_t selector;
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uint16_t attrib;
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uint32_t limit;
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uint64_t base;
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};
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struct QEMU_PACKED vmcb_save_area {
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struct vmcb_seg es;
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struct vmcb_seg cs;
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struct vmcb_seg ss;
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struct vmcb_seg ds;
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struct vmcb_seg fs;
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struct vmcb_seg gs;
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struct vmcb_seg gdtr;
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struct vmcb_seg ldtr;
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struct vmcb_seg idtr;
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struct vmcb_seg tr;
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uint8_t reserved_1[43];
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uint8_t cpl;
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uint8_t reserved_2[4];
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uint64_t efer;
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uint8_t reserved_3[112];
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uint64_t cr4;
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uint64_t cr3;
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uint64_t cr0;
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uint64_t dr7;
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uint64_t dr6;
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uint64_t rflags;
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uint64_t rip;
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uint8_t reserved_4[88];
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uint64_t rsp;
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uint8_t reserved_5[24];
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uint64_t rax;
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uint64_t star;
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uint64_t lstar;
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uint64_t cstar;
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uint64_t sfmask;
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uint64_t kernel_gs_base;
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uint64_t sysenter_cs;
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uint64_t sysenter_esp;
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uint64_t sysenter_eip;
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uint64_t cr2;
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uint8_t reserved_6[32];
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uint64_t g_pat;
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uint64_t dbgctl;
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uint64_t br_from;
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uint64_t br_to;
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uint64_t last_excp_from;
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uint64_t last_excp_to;
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};
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struct QEMU_PACKED vmcb {
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struct vmcb_control_area control;
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struct vmcb_save_area save;
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};
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#endif
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