mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 17:51:43 +00:00
dc25e89e07
In case of a nested page fault or an intercepted #PF newer SVM implementations provide a copy of the faulting instruction bytes in the VMCB. Use these bytes to feed the instruction emulator and avoid the costly guest instruction fetch in this case. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
353 lines
8.7 KiB
C
353 lines
8.7 KiB
C
#ifndef __SVM_H
|
|
#define __SVM_H
|
|
|
|
enum {
|
|
INTERCEPT_INTR,
|
|
INTERCEPT_NMI,
|
|
INTERCEPT_SMI,
|
|
INTERCEPT_INIT,
|
|
INTERCEPT_VINTR,
|
|
INTERCEPT_SELECTIVE_CR0,
|
|
INTERCEPT_STORE_IDTR,
|
|
INTERCEPT_STORE_GDTR,
|
|
INTERCEPT_STORE_LDTR,
|
|
INTERCEPT_STORE_TR,
|
|
INTERCEPT_LOAD_IDTR,
|
|
INTERCEPT_LOAD_GDTR,
|
|
INTERCEPT_LOAD_LDTR,
|
|
INTERCEPT_LOAD_TR,
|
|
INTERCEPT_RDTSC,
|
|
INTERCEPT_RDPMC,
|
|
INTERCEPT_PUSHF,
|
|
INTERCEPT_POPF,
|
|
INTERCEPT_CPUID,
|
|
INTERCEPT_RSM,
|
|
INTERCEPT_IRET,
|
|
INTERCEPT_INTn,
|
|
INTERCEPT_INVD,
|
|
INTERCEPT_PAUSE,
|
|
INTERCEPT_HLT,
|
|
INTERCEPT_INVLPG,
|
|
INTERCEPT_INVLPGA,
|
|
INTERCEPT_IOIO_PROT,
|
|
INTERCEPT_MSR_PROT,
|
|
INTERCEPT_TASK_SWITCH,
|
|
INTERCEPT_FERR_FREEZE,
|
|
INTERCEPT_SHUTDOWN,
|
|
INTERCEPT_VMRUN,
|
|
INTERCEPT_VMMCALL,
|
|
INTERCEPT_VMLOAD,
|
|
INTERCEPT_VMSAVE,
|
|
INTERCEPT_STGI,
|
|
INTERCEPT_CLGI,
|
|
INTERCEPT_SKINIT,
|
|
INTERCEPT_RDTSCP,
|
|
INTERCEPT_ICEBP,
|
|
INTERCEPT_WBINVD,
|
|
INTERCEPT_MONITOR,
|
|
INTERCEPT_MWAIT,
|
|
INTERCEPT_MWAIT_COND,
|
|
INTERCEPT_XSETBV,
|
|
};
|
|
|
|
|
|
struct __attribute__ ((__packed__)) vmcb_control_area {
|
|
u32 intercept_cr;
|
|
u32 intercept_dr;
|
|
u32 intercept_exceptions;
|
|
u64 intercept;
|
|
u8 reserved_1[42];
|
|
u16 pause_filter_count;
|
|
u64 iopm_base_pa;
|
|
u64 msrpm_base_pa;
|
|
u64 tsc_offset;
|
|
u32 asid;
|
|
u8 tlb_ctl;
|
|
u8 reserved_2[3];
|
|
u32 int_ctl;
|
|
u32 int_vector;
|
|
u32 int_state;
|
|
u8 reserved_3[4];
|
|
u32 exit_code;
|
|
u32 exit_code_hi;
|
|
u64 exit_info_1;
|
|
u64 exit_info_2;
|
|
u32 exit_int_info;
|
|
u32 exit_int_info_err;
|
|
u64 nested_ctl;
|
|
u8 reserved_4[16];
|
|
u32 event_inj;
|
|
u32 event_inj_err;
|
|
u64 nested_cr3;
|
|
u64 lbr_ctl;
|
|
u32 clean;
|
|
u32 reserved_5;
|
|
u64 next_rip;
|
|
u8 insn_len;
|
|
u8 insn_bytes[15];
|
|
u8 reserved_6[800];
|
|
};
|
|
|
|
|
|
#define TLB_CONTROL_DO_NOTHING 0
|
|
#define TLB_CONTROL_FLUSH_ALL_ASID 1
|
|
#define TLB_CONTROL_FLUSH_ASID 3
|
|
#define TLB_CONTROL_FLUSH_ASID_LOCAL 7
|
|
|
|
#define V_TPR_MASK 0x0f
|
|
|
|
#define V_IRQ_SHIFT 8
|
|
#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
|
|
|
|
#define V_INTR_PRIO_SHIFT 16
|
|
#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
|
|
|
|
#define V_IGN_TPR_SHIFT 20
|
|
#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
|
|
|
|
#define V_INTR_MASKING_SHIFT 24
|
|
#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
|
|
|
|
#define SVM_INTERRUPT_SHADOW_MASK 1
|
|
|
|
#define SVM_IOIO_STR_SHIFT 2
|
|
#define SVM_IOIO_REP_SHIFT 3
|
|
#define SVM_IOIO_SIZE_SHIFT 4
|
|
#define SVM_IOIO_ASIZE_SHIFT 7
|
|
|
|
#define SVM_IOIO_TYPE_MASK 1
|
|
#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
|
|
#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
|
|
#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
|
|
#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
|
|
|
|
#define SVM_VM_CR_VALID_MASK 0x001fULL
|
|
#define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL
|
|
#define SVM_VM_CR_SVM_DIS_MASK 0x0010ULL
|
|
|
|
struct __attribute__ ((__packed__)) vmcb_seg {
|
|
u16 selector;
|
|
u16 attrib;
|
|
u32 limit;
|
|
u64 base;
|
|
};
|
|
|
|
struct __attribute__ ((__packed__)) vmcb_save_area {
|
|
struct vmcb_seg es;
|
|
struct vmcb_seg cs;
|
|
struct vmcb_seg ss;
|
|
struct vmcb_seg ds;
|
|
struct vmcb_seg fs;
|
|
struct vmcb_seg gs;
|
|
struct vmcb_seg gdtr;
|
|
struct vmcb_seg ldtr;
|
|
struct vmcb_seg idtr;
|
|
struct vmcb_seg tr;
|
|
u8 reserved_1[43];
|
|
u8 cpl;
|
|
u8 reserved_2[4];
|
|
u64 efer;
|
|
u8 reserved_3[112];
|
|
u64 cr4;
|
|
u64 cr3;
|
|
u64 cr0;
|
|
u64 dr7;
|
|
u64 dr6;
|
|
u64 rflags;
|
|
u64 rip;
|
|
u8 reserved_4[88];
|
|
u64 rsp;
|
|
u8 reserved_5[24];
|
|
u64 rax;
|
|
u64 star;
|
|
u64 lstar;
|
|
u64 cstar;
|
|
u64 sfmask;
|
|
u64 kernel_gs_base;
|
|
u64 sysenter_cs;
|
|
u64 sysenter_esp;
|
|
u64 sysenter_eip;
|
|
u64 cr2;
|
|
u8 reserved_6[32];
|
|
u64 g_pat;
|
|
u64 dbgctl;
|
|
u64 br_from;
|
|
u64 br_to;
|
|
u64 last_excp_from;
|
|
u64 last_excp_to;
|
|
};
|
|
|
|
struct __attribute__ ((__packed__)) vmcb {
|
|
struct vmcb_control_area control;
|
|
struct vmcb_save_area save;
|
|
};
|
|
|
|
#define SVM_CPUID_FEATURE_SHIFT 2
|
|
#define SVM_CPUID_FUNC 0x8000000a
|
|
|
|
#define SVM_VM_CR_SVM_DISABLE 4
|
|
|
|
#define SVM_SELECTOR_S_SHIFT 4
|
|
#define SVM_SELECTOR_DPL_SHIFT 5
|
|
#define SVM_SELECTOR_P_SHIFT 7
|
|
#define SVM_SELECTOR_AVL_SHIFT 8
|
|
#define SVM_SELECTOR_L_SHIFT 9
|
|
#define SVM_SELECTOR_DB_SHIFT 10
|
|
#define SVM_SELECTOR_G_SHIFT 11
|
|
|
|
#define SVM_SELECTOR_TYPE_MASK (0xf)
|
|
#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
|
|
#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
|
|
#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
|
|
#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
|
|
#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
|
|
#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
|
|
#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
|
|
|
|
#define SVM_SELECTOR_WRITE_MASK (1 << 1)
|
|
#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
|
|
#define SVM_SELECTOR_CODE_MASK (1 << 3)
|
|
|
|
#define INTERCEPT_CR0_READ 0
|
|
#define INTERCEPT_CR3_READ 3
|
|
#define INTERCEPT_CR4_READ 4
|
|
#define INTERCEPT_CR8_READ 8
|
|
#define INTERCEPT_CR0_WRITE (16 + 0)
|
|
#define INTERCEPT_CR3_WRITE (16 + 3)
|
|
#define INTERCEPT_CR4_WRITE (16 + 4)
|
|
#define INTERCEPT_CR8_WRITE (16 + 8)
|
|
|
|
#define INTERCEPT_DR0_READ 0
|
|
#define INTERCEPT_DR1_READ 1
|
|
#define INTERCEPT_DR2_READ 2
|
|
#define INTERCEPT_DR3_READ 3
|
|
#define INTERCEPT_DR4_READ 4
|
|
#define INTERCEPT_DR5_READ 5
|
|
#define INTERCEPT_DR6_READ 6
|
|
#define INTERCEPT_DR7_READ 7
|
|
#define INTERCEPT_DR0_WRITE (16 + 0)
|
|
#define INTERCEPT_DR1_WRITE (16 + 1)
|
|
#define INTERCEPT_DR2_WRITE (16 + 2)
|
|
#define INTERCEPT_DR3_WRITE (16 + 3)
|
|
#define INTERCEPT_DR4_WRITE (16 + 4)
|
|
#define INTERCEPT_DR5_WRITE (16 + 5)
|
|
#define INTERCEPT_DR6_WRITE (16 + 6)
|
|
#define INTERCEPT_DR7_WRITE (16 + 7)
|
|
|
|
#define SVM_EVTINJ_VEC_MASK 0xff
|
|
|
|
#define SVM_EVTINJ_TYPE_SHIFT 8
|
|
#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
|
|
|
|
#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
|
|
#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
|
|
#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
|
|
#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
|
|
|
|
#define SVM_EVTINJ_VALID (1 << 31)
|
|
#define SVM_EVTINJ_VALID_ERR (1 << 11)
|
|
|
|
#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
|
|
#define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
|
|
|
|
#define SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
|
|
#define SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
|
|
#define SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
|
|
#define SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
|
|
|
|
#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
|
|
#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
|
|
|
|
#define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
|
|
#define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
|
|
#define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
|
|
|
|
#define SVM_EXITINFO_REG_MASK 0x0F
|
|
|
|
#define SVM_EXIT_READ_CR0 0x000
|
|
#define SVM_EXIT_READ_CR3 0x003
|
|
#define SVM_EXIT_READ_CR4 0x004
|
|
#define SVM_EXIT_READ_CR8 0x008
|
|
#define SVM_EXIT_WRITE_CR0 0x010
|
|
#define SVM_EXIT_WRITE_CR3 0x013
|
|
#define SVM_EXIT_WRITE_CR4 0x014
|
|
#define SVM_EXIT_WRITE_CR8 0x018
|
|
#define SVM_EXIT_READ_DR0 0x020
|
|
#define SVM_EXIT_READ_DR1 0x021
|
|
#define SVM_EXIT_READ_DR2 0x022
|
|
#define SVM_EXIT_READ_DR3 0x023
|
|
#define SVM_EXIT_READ_DR4 0x024
|
|
#define SVM_EXIT_READ_DR5 0x025
|
|
#define SVM_EXIT_READ_DR6 0x026
|
|
#define SVM_EXIT_READ_DR7 0x027
|
|
#define SVM_EXIT_WRITE_DR0 0x030
|
|
#define SVM_EXIT_WRITE_DR1 0x031
|
|
#define SVM_EXIT_WRITE_DR2 0x032
|
|
#define SVM_EXIT_WRITE_DR3 0x033
|
|
#define SVM_EXIT_WRITE_DR4 0x034
|
|
#define SVM_EXIT_WRITE_DR5 0x035
|
|
#define SVM_EXIT_WRITE_DR6 0x036
|
|
#define SVM_EXIT_WRITE_DR7 0x037
|
|
#define SVM_EXIT_EXCP_BASE 0x040
|
|
#define SVM_EXIT_INTR 0x060
|
|
#define SVM_EXIT_NMI 0x061
|
|
#define SVM_EXIT_SMI 0x062
|
|
#define SVM_EXIT_INIT 0x063
|
|
#define SVM_EXIT_VINTR 0x064
|
|
#define SVM_EXIT_CR0_SEL_WRITE 0x065
|
|
#define SVM_EXIT_IDTR_READ 0x066
|
|
#define SVM_EXIT_GDTR_READ 0x067
|
|
#define SVM_EXIT_LDTR_READ 0x068
|
|
#define SVM_EXIT_TR_READ 0x069
|
|
#define SVM_EXIT_IDTR_WRITE 0x06a
|
|
#define SVM_EXIT_GDTR_WRITE 0x06b
|
|
#define SVM_EXIT_LDTR_WRITE 0x06c
|
|
#define SVM_EXIT_TR_WRITE 0x06d
|
|
#define SVM_EXIT_RDTSC 0x06e
|
|
#define SVM_EXIT_RDPMC 0x06f
|
|
#define SVM_EXIT_PUSHF 0x070
|
|
#define SVM_EXIT_POPF 0x071
|
|
#define SVM_EXIT_CPUID 0x072
|
|
#define SVM_EXIT_RSM 0x073
|
|
#define SVM_EXIT_IRET 0x074
|
|
#define SVM_EXIT_SWINT 0x075
|
|
#define SVM_EXIT_INVD 0x076
|
|
#define SVM_EXIT_PAUSE 0x077
|
|
#define SVM_EXIT_HLT 0x078
|
|
#define SVM_EXIT_INVLPG 0x079
|
|
#define SVM_EXIT_INVLPGA 0x07a
|
|
#define SVM_EXIT_IOIO 0x07b
|
|
#define SVM_EXIT_MSR 0x07c
|
|
#define SVM_EXIT_TASK_SWITCH 0x07d
|
|
#define SVM_EXIT_FERR_FREEZE 0x07e
|
|
#define SVM_EXIT_SHUTDOWN 0x07f
|
|
#define SVM_EXIT_VMRUN 0x080
|
|
#define SVM_EXIT_VMMCALL 0x081
|
|
#define SVM_EXIT_VMLOAD 0x082
|
|
#define SVM_EXIT_VMSAVE 0x083
|
|
#define SVM_EXIT_STGI 0x084
|
|
#define SVM_EXIT_CLGI 0x085
|
|
#define SVM_EXIT_SKINIT 0x086
|
|
#define SVM_EXIT_RDTSCP 0x087
|
|
#define SVM_EXIT_ICEBP 0x088
|
|
#define SVM_EXIT_WBINVD 0x089
|
|
#define SVM_EXIT_MONITOR 0x08a
|
|
#define SVM_EXIT_MWAIT 0x08b
|
|
#define SVM_EXIT_MWAIT_COND 0x08c
|
|
#define SVM_EXIT_XSETBV 0x08d
|
|
#define SVM_EXIT_NPF 0x400
|
|
|
|
#define SVM_EXIT_ERR -1
|
|
|
|
#define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
|
|
|
|
#define SVM_VMLOAD ".byte 0x0f, 0x01, 0xda"
|
|
#define SVM_VMRUN ".byte 0x0f, 0x01, 0xd8"
|
|
#define SVM_VMSAVE ".byte 0x0f, 0x01, 0xdb"
|
|
#define SVM_CLGI ".byte 0x0f, 0x01, 0xdd"
|
|
#define SVM_STGI ".byte 0x0f, 0x01, 0xdc"
|
|
#define SVM_INVLPGA ".byte 0x0f, 0x01, 0xdf"
|
|
|
|
#endif
|
|
|