553 lines
16 KiB
C
553 lines
16 KiB
C
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/*
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* tools/testing/selftests/kvm/include/vmx.h
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*
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* Copyright (C) 2018, Google LLC.
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*
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* This work is licensed under the terms of the GNU GPL, version 2.
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*
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*/
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#ifndef SELFTEST_KVM_VMX_H
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#define SELFTEST_KVM_VMX_H
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#include <stdint.h>
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#include "x86.h"
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#define CPUID_VMX_BIT 5
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#define CPUID_VMX (1 << 5)
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/*
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* Definitions of Primary Processor-Based VM-Execution Controls.
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*/
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#define CPU_BASED_VIRTUAL_INTR_PENDING 0x00000004
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#define CPU_BASED_USE_TSC_OFFSETING 0x00000008
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#define CPU_BASED_HLT_EXITING 0x00000080
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#define CPU_BASED_INVLPG_EXITING 0x00000200
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#define CPU_BASED_MWAIT_EXITING 0x00000400
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#define CPU_BASED_RDPMC_EXITING 0x00000800
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#define CPU_BASED_RDTSC_EXITING 0x00001000
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#define CPU_BASED_CR3_LOAD_EXITING 0x00008000
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#define CPU_BASED_CR3_STORE_EXITING 0x00010000
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#define CPU_BASED_CR8_LOAD_EXITING 0x00080000
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#define CPU_BASED_CR8_STORE_EXITING 0x00100000
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#define CPU_BASED_TPR_SHADOW 0x00200000
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#define CPU_BASED_VIRTUAL_NMI_PENDING 0x00400000
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#define CPU_BASED_MOV_DR_EXITING 0x00800000
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#define CPU_BASED_UNCOND_IO_EXITING 0x01000000
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#define CPU_BASED_USE_IO_BITMAPS 0x02000000
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#define CPU_BASED_MONITOR_TRAP 0x08000000
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#define CPU_BASED_USE_MSR_BITMAPS 0x10000000
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#define CPU_BASED_MONITOR_EXITING 0x20000000
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#define CPU_BASED_PAUSE_EXITING 0x40000000
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#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS 0x80000000
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#define CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x0401e172
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/*
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* Definitions of Secondary Processor-Based VM-Execution Controls.
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*/
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#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
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#define SECONDARY_EXEC_ENABLE_EPT 0x00000002
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#define SECONDARY_EXEC_DESC 0x00000004
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#define SECONDARY_EXEC_RDTSCP 0x00000008
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#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE 0x00000010
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#define SECONDARY_EXEC_ENABLE_VPID 0x00000020
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#define SECONDARY_EXEC_WBINVD_EXITING 0x00000040
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#define SECONDARY_EXEC_UNRESTRICTED_GUEST 0x00000080
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#define SECONDARY_EXEC_APIC_REGISTER_VIRT 0x00000100
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#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY 0x00000200
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#define SECONDARY_EXEC_PAUSE_LOOP_EXITING 0x00000400
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#define SECONDARY_EXEC_RDRAND_EXITING 0x00000800
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#define SECONDARY_EXEC_ENABLE_INVPCID 0x00001000
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#define SECONDARY_EXEC_ENABLE_VMFUNC 0x00002000
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#define SECONDARY_EXEC_SHADOW_VMCS 0x00004000
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#define SECONDARY_EXEC_RDSEED_EXITING 0x00010000
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#define SECONDARY_EXEC_ENABLE_PML 0x00020000
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#define SECONDARY_EPT_VE 0x00040000
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#define SECONDARY_ENABLE_XSAV_RESTORE 0x00100000
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#define SECONDARY_EXEC_TSC_SCALING 0x02000000
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#define PIN_BASED_EXT_INTR_MASK 0x00000001
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#define PIN_BASED_NMI_EXITING 0x00000008
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#define PIN_BASED_VIRTUAL_NMIS 0x00000020
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#define PIN_BASED_VMX_PREEMPTION_TIMER 0x00000040
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#define PIN_BASED_POSTED_INTR 0x00000080
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#define PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x00000016
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#define VM_EXIT_SAVE_DEBUG_CONTROLS 0x00000004
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#define VM_EXIT_HOST_ADDR_SPACE_SIZE 0x00000200
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#define VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL 0x00001000
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#define VM_EXIT_ACK_INTR_ON_EXIT 0x00008000
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#define VM_EXIT_SAVE_IA32_PAT 0x00040000
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#define VM_EXIT_LOAD_IA32_PAT 0x00080000
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#define VM_EXIT_SAVE_IA32_EFER 0x00100000
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#define VM_EXIT_LOAD_IA32_EFER 0x00200000
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#define VM_EXIT_SAVE_VMX_PREEMPTION_TIMER 0x00400000
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#define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR 0x00036dff
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#define VM_ENTRY_LOAD_DEBUG_CONTROLS 0x00000004
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#define VM_ENTRY_IA32E_MODE 0x00000200
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#define VM_ENTRY_SMM 0x00000400
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#define VM_ENTRY_DEACT_DUAL_MONITOR 0x00000800
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#define VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL 0x00002000
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#define VM_ENTRY_LOAD_IA32_PAT 0x00004000
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#define VM_ENTRY_LOAD_IA32_EFER 0x00008000
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#define VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR 0x000011ff
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#define VMX_MISC_PREEMPTION_TIMER_RATE_MASK 0x0000001f
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#define VMX_MISC_SAVE_EFER_LMA 0x00000020
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#define EXIT_REASON_FAILED_VMENTRY 0x80000000
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#define EXIT_REASON_EXCEPTION_NMI 0
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#define EXIT_REASON_EXTERNAL_INTERRUPT 1
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#define EXIT_REASON_TRIPLE_FAULT 2
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#define EXIT_REASON_PENDING_INTERRUPT 7
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#define EXIT_REASON_NMI_WINDOW 8
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#define EXIT_REASON_TASK_SWITCH 9
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#define EXIT_REASON_CPUID 10
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#define EXIT_REASON_HLT 12
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#define EXIT_REASON_INVD 13
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#define EXIT_REASON_INVLPG 14
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#define EXIT_REASON_RDPMC 15
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#define EXIT_REASON_RDTSC 16
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#define EXIT_REASON_VMCALL 18
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#define EXIT_REASON_VMCLEAR 19
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#define EXIT_REASON_VMLAUNCH 20
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#define EXIT_REASON_VMPTRLD 21
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#define EXIT_REASON_VMPTRST 22
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#define EXIT_REASON_VMREAD 23
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#define EXIT_REASON_VMRESUME 24
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#define EXIT_REASON_VMWRITE 25
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#define EXIT_REASON_VMOFF 26
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#define EXIT_REASON_VMON 27
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#define EXIT_REASON_CR_ACCESS 28
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#define EXIT_REASON_DR_ACCESS 29
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#define EXIT_REASON_IO_INSTRUCTION 30
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#define EXIT_REASON_MSR_READ 31
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#define EXIT_REASON_MSR_WRITE 32
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#define EXIT_REASON_INVALID_STATE 33
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#define EXIT_REASON_MWAIT_INSTRUCTION 36
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#define EXIT_REASON_MONITOR_INSTRUCTION 39
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#define EXIT_REASON_PAUSE_INSTRUCTION 40
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#define EXIT_REASON_MCE_DURING_VMENTRY 41
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#define EXIT_REASON_TPR_BELOW_THRESHOLD 43
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#define EXIT_REASON_APIC_ACCESS 44
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#define EXIT_REASON_EOI_INDUCED 45
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#define EXIT_REASON_EPT_VIOLATION 48
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#define EXIT_REASON_EPT_MISCONFIG 49
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#define EXIT_REASON_INVEPT 50
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#define EXIT_REASON_RDTSCP 51
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#define EXIT_REASON_PREEMPTION_TIMER 52
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#define EXIT_REASON_INVVPID 53
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#define EXIT_REASON_WBINVD 54
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#define EXIT_REASON_XSETBV 55
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#define EXIT_REASON_APIC_WRITE 56
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#define EXIT_REASON_INVPCID 58
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#define EXIT_REASON_PML_FULL 62
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#define EXIT_REASON_XSAVES 63
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#define EXIT_REASON_XRSTORS 64
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#define LAST_EXIT_REASON 64
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enum vmcs_field {
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VIRTUAL_PROCESSOR_ID = 0x00000000,
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POSTED_INTR_NV = 0x00000002,
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GUEST_ES_SELECTOR = 0x00000800,
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GUEST_CS_SELECTOR = 0x00000802,
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GUEST_SS_SELECTOR = 0x00000804,
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GUEST_DS_SELECTOR = 0x00000806,
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GUEST_FS_SELECTOR = 0x00000808,
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GUEST_GS_SELECTOR = 0x0000080a,
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GUEST_LDTR_SELECTOR = 0x0000080c,
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GUEST_TR_SELECTOR = 0x0000080e,
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GUEST_INTR_STATUS = 0x00000810,
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GUEST_PML_INDEX = 0x00000812,
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HOST_ES_SELECTOR = 0x00000c00,
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HOST_CS_SELECTOR = 0x00000c02,
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HOST_SS_SELECTOR = 0x00000c04,
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HOST_DS_SELECTOR = 0x00000c06,
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HOST_FS_SELECTOR = 0x00000c08,
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HOST_GS_SELECTOR = 0x00000c0a,
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HOST_TR_SELECTOR = 0x00000c0c,
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IO_BITMAP_A = 0x00002000,
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IO_BITMAP_A_HIGH = 0x00002001,
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IO_BITMAP_B = 0x00002002,
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IO_BITMAP_B_HIGH = 0x00002003,
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MSR_BITMAP = 0x00002004,
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MSR_BITMAP_HIGH = 0x00002005,
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VM_EXIT_MSR_STORE_ADDR = 0x00002006,
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VM_EXIT_MSR_STORE_ADDR_HIGH = 0x00002007,
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VM_EXIT_MSR_LOAD_ADDR = 0x00002008,
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VM_EXIT_MSR_LOAD_ADDR_HIGH = 0x00002009,
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VM_ENTRY_MSR_LOAD_ADDR = 0x0000200a,
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VM_ENTRY_MSR_LOAD_ADDR_HIGH = 0x0000200b,
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PML_ADDRESS = 0x0000200e,
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PML_ADDRESS_HIGH = 0x0000200f,
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TSC_OFFSET = 0x00002010,
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TSC_OFFSET_HIGH = 0x00002011,
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VIRTUAL_APIC_PAGE_ADDR = 0x00002012,
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VIRTUAL_APIC_PAGE_ADDR_HIGH = 0x00002013,
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APIC_ACCESS_ADDR = 0x00002014,
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APIC_ACCESS_ADDR_HIGH = 0x00002015,
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POSTED_INTR_DESC_ADDR = 0x00002016,
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POSTED_INTR_DESC_ADDR_HIGH = 0x00002017,
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EPT_POINTER = 0x0000201a,
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EPT_POINTER_HIGH = 0x0000201b,
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EOI_EXIT_BITMAP0 = 0x0000201c,
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EOI_EXIT_BITMAP0_HIGH = 0x0000201d,
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EOI_EXIT_BITMAP1 = 0x0000201e,
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EOI_EXIT_BITMAP1_HIGH = 0x0000201f,
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EOI_EXIT_BITMAP2 = 0x00002020,
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EOI_EXIT_BITMAP2_HIGH = 0x00002021,
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EOI_EXIT_BITMAP3 = 0x00002022,
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EOI_EXIT_BITMAP3_HIGH = 0x00002023,
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VMREAD_BITMAP = 0x00002026,
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VMREAD_BITMAP_HIGH = 0x00002027,
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VMWRITE_BITMAP = 0x00002028,
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VMWRITE_BITMAP_HIGH = 0x00002029,
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XSS_EXIT_BITMAP = 0x0000202C,
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XSS_EXIT_BITMAP_HIGH = 0x0000202D,
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TSC_MULTIPLIER = 0x00002032,
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TSC_MULTIPLIER_HIGH = 0x00002033,
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GUEST_PHYSICAL_ADDRESS = 0x00002400,
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GUEST_PHYSICAL_ADDRESS_HIGH = 0x00002401,
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VMCS_LINK_POINTER = 0x00002800,
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VMCS_LINK_POINTER_HIGH = 0x00002801,
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GUEST_IA32_DEBUGCTL = 0x00002802,
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GUEST_IA32_DEBUGCTL_HIGH = 0x00002803,
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GUEST_IA32_PAT = 0x00002804,
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GUEST_IA32_PAT_HIGH = 0x00002805,
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GUEST_IA32_EFER = 0x00002806,
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GUEST_IA32_EFER_HIGH = 0x00002807,
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GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808,
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GUEST_IA32_PERF_GLOBAL_CTRL_HIGH= 0x00002809,
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GUEST_PDPTR0 = 0x0000280a,
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GUEST_PDPTR0_HIGH = 0x0000280b,
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GUEST_PDPTR1 = 0x0000280c,
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GUEST_PDPTR1_HIGH = 0x0000280d,
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GUEST_PDPTR2 = 0x0000280e,
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GUEST_PDPTR2_HIGH = 0x0000280f,
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GUEST_PDPTR3 = 0x00002810,
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GUEST_PDPTR3_HIGH = 0x00002811,
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GUEST_BNDCFGS = 0x00002812,
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GUEST_BNDCFGS_HIGH = 0x00002813,
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HOST_IA32_PAT = 0x00002c00,
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HOST_IA32_PAT_HIGH = 0x00002c01,
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HOST_IA32_EFER = 0x00002c02,
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HOST_IA32_EFER_HIGH = 0x00002c03,
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HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04,
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HOST_IA32_PERF_GLOBAL_CTRL_HIGH = 0x00002c05,
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PIN_BASED_VM_EXEC_CONTROL = 0x00004000,
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CPU_BASED_VM_EXEC_CONTROL = 0x00004002,
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EXCEPTION_BITMAP = 0x00004004,
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PAGE_FAULT_ERROR_CODE_MASK = 0x00004006,
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PAGE_FAULT_ERROR_CODE_MATCH = 0x00004008,
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CR3_TARGET_COUNT = 0x0000400a,
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VM_EXIT_CONTROLS = 0x0000400c,
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VM_EXIT_MSR_STORE_COUNT = 0x0000400e,
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VM_EXIT_MSR_LOAD_COUNT = 0x00004010,
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VM_ENTRY_CONTROLS = 0x00004012,
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VM_ENTRY_MSR_LOAD_COUNT = 0x00004014,
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VM_ENTRY_INTR_INFO_FIELD = 0x00004016,
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VM_ENTRY_EXCEPTION_ERROR_CODE = 0x00004018,
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VM_ENTRY_INSTRUCTION_LEN = 0x0000401a,
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TPR_THRESHOLD = 0x0000401c,
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SECONDARY_VM_EXEC_CONTROL = 0x0000401e,
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PLE_GAP = 0x00004020,
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PLE_WINDOW = 0x00004022,
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VM_INSTRUCTION_ERROR = 0x00004400,
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VM_EXIT_REASON = 0x00004402,
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VM_EXIT_INTR_INFO = 0x00004404,
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VM_EXIT_INTR_ERROR_CODE = 0x00004406,
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IDT_VECTORING_INFO_FIELD = 0x00004408,
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IDT_VECTORING_ERROR_CODE = 0x0000440a,
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VM_EXIT_INSTRUCTION_LEN = 0x0000440c,
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VMX_INSTRUCTION_INFO = 0x0000440e,
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GUEST_ES_LIMIT = 0x00004800,
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GUEST_CS_LIMIT = 0x00004802,
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GUEST_SS_LIMIT = 0x00004804,
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GUEST_DS_LIMIT = 0x00004806,
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GUEST_FS_LIMIT = 0x00004808,
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GUEST_GS_LIMIT = 0x0000480a,
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GUEST_LDTR_LIMIT = 0x0000480c,
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GUEST_TR_LIMIT = 0x0000480e,
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GUEST_GDTR_LIMIT = 0x00004810,
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GUEST_IDTR_LIMIT = 0x00004812,
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GUEST_ES_AR_BYTES = 0x00004814,
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GUEST_CS_AR_BYTES = 0x00004816,
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GUEST_SS_AR_BYTES = 0x00004818,
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GUEST_DS_AR_BYTES = 0x0000481a,
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GUEST_FS_AR_BYTES = 0x0000481c,
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GUEST_GS_AR_BYTES = 0x0000481e,
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GUEST_LDTR_AR_BYTES = 0x00004820,
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GUEST_TR_AR_BYTES = 0x00004822,
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GUEST_INTERRUPTIBILITY_INFO = 0x00004824,
|
||
|
|
GUEST_ACTIVITY_STATE = 0X00004826,
|
||
|
|
GUEST_SYSENTER_CS = 0x0000482A,
|
||
|
|
VMX_PREEMPTION_TIMER_VALUE = 0x0000482E,
|
||
|
|
HOST_IA32_SYSENTER_CS = 0x00004c00,
|
||
|
|
CR0_GUEST_HOST_MASK = 0x00006000,
|
||
|
|
CR4_GUEST_HOST_MASK = 0x00006002,
|
||
|
|
CR0_READ_SHADOW = 0x00006004,
|
||
|
|
CR4_READ_SHADOW = 0x00006006,
|
||
|
|
CR3_TARGET_VALUE0 = 0x00006008,
|
||
|
|
CR3_TARGET_VALUE1 = 0x0000600a,
|
||
|
|
CR3_TARGET_VALUE2 = 0x0000600c,
|
||
|
|
CR3_TARGET_VALUE3 = 0x0000600e,
|
||
|
|
EXIT_QUALIFICATION = 0x00006400,
|
||
|
|
GUEST_LINEAR_ADDRESS = 0x0000640a,
|
||
|
|
GUEST_CR0 = 0x00006800,
|
||
|
|
GUEST_CR3 = 0x00006802,
|
||
|
|
GUEST_CR4 = 0x00006804,
|
||
|
|
GUEST_ES_BASE = 0x00006806,
|
||
|
|
GUEST_CS_BASE = 0x00006808,
|
||
|
|
GUEST_SS_BASE = 0x0000680a,
|
||
|
|
GUEST_DS_BASE = 0x0000680c,
|
||
|
|
GUEST_FS_BASE = 0x0000680e,
|
||
|
|
GUEST_GS_BASE = 0x00006810,
|
||
|
|
GUEST_LDTR_BASE = 0x00006812,
|
||
|
|
GUEST_TR_BASE = 0x00006814,
|
||
|
|
GUEST_GDTR_BASE = 0x00006816,
|
||
|
|
GUEST_IDTR_BASE = 0x00006818,
|
||
|
|
GUEST_DR7 = 0x0000681a,
|
||
|
|
GUEST_RSP = 0x0000681c,
|
||
|
|
GUEST_RIP = 0x0000681e,
|
||
|
|
GUEST_RFLAGS = 0x00006820,
|
||
|
|
GUEST_PENDING_DBG_EXCEPTIONS = 0x00006822,
|
||
|
|
GUEST_SYSENTER_ESP = 0x00006824,
|
||
|
|
GUEST_SYSENTER_EIP = 0x00006826,
|
||
|
|
HOST_CR0 = 0x00006c00,
|
||
|
|
HOST_CR3 = 0x00006c02,
|
||
|
|
HOST_CR4 = 0x00006c04,
|
||
|
|
HOST_FS_BASE = 0x00006c06,
|
||
|
|
HOST_GS_BASE = 0x00006c08,
|
||
|
|
HOST_TR_BASE = 0x00006c0a,
|
||
|
|
HOST_GDTR_BASE = 0x00006c0c,
|
||
|
|
HOST_IDTR_BASE = 0x00006c0e,
|
||
|
|
HOST_IA32_SYSENTER_ESP = 0x00006c10,
|
||
|
|
HOST_IA32_SYSENTER_EIP = 0x00006c12,
|
||
|
|
HOST_RSP = 0x00006c14,
|
||
|
|
HOST_RIP = 0x00006c16,
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vmx_msr_entry {
|
||
|
|
uint32_t index;
|
||
|
|
uint32_t reserved;
|
||
|
|
uint64_t value;
|
||
|
|
} __attribute__ ((aligned(16)));
|
||
|
|
|
||
|
|
static inline int vmxon(uint64_t phys)
|
||
|
|
{
|
||
|
|
uint8_t ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__ ("vmxon %[pa]; setna %[ret]"
|
||
|
|
: [ret]"=rm"(ret)
|
||
|
|
: [pa]"m"(phys)
|
||
|
|
: "cc", "memory");
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void vmxoff(void)
|
||
|
|
{
|
||
|
|
__asm__ __volatile__("vmxoff");
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int vmclear(uint64_t vmcs_pa)
|
||
|
|
{
|
||
|
|
uint8_t ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__ ("vmclear %[pa]; setna %[ret]"
|
||
|
|
: [ret]"=rm"(ret)
|
||
|
|
: [pa]"m"(vmcs_pa)
|
||
|
|
: "cc", "memory");
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int vmptrld(uint64_t vmcs_pa)
|
||
|
|
{
|
||
|
|
uint8_t ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__ ("vmptrld %[pa]; setna %[ret]"
|
||
|
|
: [ret]"=rm"(ret)
|
||
|
|
: [pa]"m"(vmcs_pa)
|
||
|
|
: "cc", "memory");
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int vmptrst(uint64_t *value)
|
||
|
|
{
|
||
|
|
uint64_t tmp;
|
||
|
|
uint8_t ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__("vmptrst %[value]; setna %[ret]"
|
||
|
|
: [value]"=m"(tmp), [ret]"=rm"(ret)
|
||
|
|
: : "cc", "memory");
|
||
|
|
|
||
|
|
*value = tmp;
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* A wrapper around vmptrst that ignores errors and returns zero if the
|
||
|
|
* vmptrst instruction fails.
|
||
|
|
*/
|
||
|
|
static inline uint64_t vmptrstz(void)
|
||
|
|
{
|
||
|
|
uint64_t value = 0;
|
||
|
|
vmptrst(&value);
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* No guest state (e.g. GPRs) is established by this vmlaunch.
|
||
|
|
*/
|
||
|
|
static inline int vmlaunch(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__("push %%rbp;"
|
||
|
|
"push %%rcx;"
|
||
|
|
"push %%rdx;"
|
||
|
|
"push %%rsi;"
|
||
|
|
"push %%rdi;"
|
||
|
|
"push $0;"
|
||
|
|
"vmwrite %%rsp, %[host_rsp];"
|
||
|
|
"lea 1f(%%rip), %%rax;"
|
||
|
|
"vmwrite %%rax, %[host_rip];"
|
||
|
|
"vmlaunch;"
|
||
|
|
"incq (%%rsp);"
|
||
|
|
"1: pop %%rax;"
|
||
|
|
"pop %%rdi;"
|
||
|
|
"pop %%rsi;"
|
||
|
|
"pop %%rdx;"
|
||
|
|
"pop %%rcx;"
|
||
|
|
"pop %%rbp;"
|
||
|
|
: [ret]"=&a"(ret)
|
||
|
|
: [host_rsp]"r"((uint64_t)HOST_RSP),
|
||
|
|
[host_rip]"r"((uint64_t)HOST_RIP)
|
||
|
|
: "memory", "cc", "rbx", "r8", "r9", "r10",
|
||
|
|
"r11", "r12", "r13", "r14", "r15");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* No guest state (e.g. GPRs) is established by this vmresume.
|
||
|
|
*/
|
||
|
|
static inline int vmresume(void)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__("push %%rbp;"
|
||
|
|
"push %%rcx;"
|
||
|
|
"push %%rdx;"
|
||
|
|
"push %%rsi;"
|
||
|
|
"push %%rdi;"
|
||
|
|
"push $0;"
|
||
|
|
"vmwrite %%rsp, %[host_rsp];"
|
||
|
|
"lea 1f(%%rip), %%rax;"
|
||
|
|
"vmwrite %%rax, %[host_rip];"
|
||
|
|
"vmresume;"
|
||
|
|
"incq (%%rsp);"
|
||
|
|
"1: pop %%rax;"
|
||
|
|
"pop %%rdi;"
|
||
|
|
"pop %%rsi;"
|
||
|
|
"pop %%rdx;"
|
||
|
|
"pop %%rcx;"
|
||
|
|
"pop %%rbp;"
|
||
|
|
: [ret]"=&a"(ret)
|
||
|
|
: [host_rsp]"r"((uint64_t)HOST_RSP),
|
||
|
|
[host_rip]"r"((uint64_t)HOST_RIP)
|
||
|
|
: "memory", "cc", "rbx", "r8", "r9", "r10",
|
||
|
|
"r11", "r12", "r13", "r14", "r15");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline void vmcall(void)
|
||
|
|
{
|
||
|
|
/* Currently, L1 destroys our GPRs during vmexits. */
|
||
|
|
__asm__ __volatile__("push %%rbp; vmcall; pop %%rbp" : : :
|
||
|
|
"rax", "rbx", "rcx", "rdx",
|
||
|
|
"rsi", "rdi", "r8", "r9", "r10", "r11", "r12",
|
||
|
|
"r13", "r14", "r15");
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int vmread(uint64_t encoding, uint64_t *value)
|
||
|
|
{
|
||
|
|
uint64_t tmp;
|
||
|
|
uint8_t ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__("vmread %[encoding], %[value]; setna %[ret]"
|
||
|
|
: [value]"=rm"(tmp), [ret]"=rm"(ret)
|
||
|
|
: [encoding]"r"(encoding)
|
||
|
|
: "cc", "memory");
|
||
|
|
|
||
|
|
*value = tmp;
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* A wrapper around vmread that ignores errors and returns zero if the
|
||
|
|
* vmread instruction fails.
|
||
|
|
*/
|
||
|
|
static inline uint64_t vmreadz(uint64_t encoding)
|
||
|
|
{
|
||
|
|
uint64_t value = 0;
|
||
|
|
vmread(encoding, &value);
|
||
|
|
return value;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline int vmwrite(uint64_t encoding, uint64_t value)
|
||
|
|
{
|
||
|
|
uint8_t ret;
|
||
|
|
|
||
|
|
__asm__ __volatile__ ("vmwrite %[value], %[encoding]; setna %[ret]"
|
||
|
|
: [ret]"=rm"(ret)
|
||
|
|
: [value]"rm"(value), [encoding]"r"(encoding)
|
||
|
|
: "cc", "memory");
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline uint32_t vmcs_revision(void)
|
||
|
|
{
|
||
|
|
return rdmsr(MSR_IA32_VMX_BASIC);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct vmx_pages {
|
||
|
|
void *vmxon_hva;
|
||
|
|
uint64_t vmxon_gpa;
|
||
|
|
void *vmxon;
|
||
|
|
|
||
|
|
void *vmcs_hva;
|
||
|
|
uint64_t vmcs_gpa;
|
||
|
|
void *vmcs;
|
||
|
|
|
||
|
|
void *msr_hva;
|
||
|
|
uint64_t msr_gpa;
|
||
|
|
void *msr;
|
||
|
|
|
||
|
|
void *shadow_vmcs_hva;
|
||
|
|
uint64_t shadow_vmcs_gpa;
|
||
|
|
void *shadow_vmcs;
|
||
|
|
|
||
|
|
void *vmread_hva;
|
||
|
|
uint64_t vmread_gpa;
|
||
|
|
void *vmread;
|
||
|
|
|
||
|
|
void *vmwrite_hva;
|
||
|
|
uint64_t vmwrite_gpa;
|
||
|
|
void *vmwrite;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct vmx_pages *vcpu_alloc_vmx(struct kvm_vm *vm, vm_vaddr_t *p_vmx_gva);
|
||
|
|
bool prepare_for_vmx_operation(struct vmx_pages *vmx);
|
||
|
|
void prepare_vmcs(struct vmx_pages *vmx, void *guest_rip, void *guest_rsp);
|
||
|
|
|
||
|
|
#endif /* !SELFTEST_KVM_VMX_H */
|