diff options
Diffstat (limited to 'arch/x86/kvm/vmx.c')
| -rw-r--r-- | arch/x86/kvm/vmx.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 051dab74e4e9..92496b9b5f2b 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -51,7 +51,6 @@ #include <asm/apic.h> #include <asm/irq_remapping.h> #include <asm/mmu_context.h> -#include <asm/microcode.h> #include <asm/nospec-branch.h> #include "trace.h" @@ -1045,6 +1044,13 @@ static inline bool is_machine_check(u32 intr_info) (INTR_TYPE_HARD_EXCEPTION | MC_VECTOR | INTR_INFO_VALID_MASK); } +/* Undocumented: icebp/int1 */ +static inline bool is_icebp(u32 intr_info) +{ + return (intr_info & (INTR_INFO_INTR_TYPE_MASK | INTR_INFO_VALID_MASK)) + == (INTR_TYPE_PRIV_SW_EXCEPTION | INTR_INFO_VALID_MASK); +} + static inline bool cpu_has_vmx_msr_bitmap(void) { return vmcs_config.cpu_based_exec_ctrl & CPU_BASED_USE_MSR_BITMAPS; @@ -6179,7 +6185,7 @@ static int handle_exception(struct kvm_vcpu *vcpu) (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP))) { vcpu->arch.dr6 &= ~15; vcpu->arch.dr6 |= dr6 | DR6_RTM; - if (!(dr6 & ~DR6_RESERVED)) /* icebp */ + if (is_icebp(intr_info)) skip_emulated_instruction(vcpu); kvm_queue_exception(vcpu, DB_VECTOR); @@ -10704,6 +10710,11 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, struct vcpu_vmx *vmx = to_vmx(vcpu); u32 exec_control, vmcs12_exec_ctrl; + if (vmx->nested.dirty_vmcs12) { + prepare_vmcs02_full(vcpu, vmcs12, from_vmentry); + vmx->nested.dirty_vmcs12 = false; + } + /* * First, the fields that are shadowed. This must be kept in sync * with vmx_shadow_fields.h. @@ -10941,11 +10952,6 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12, /* Note: modifies VM_ENTRY/EXIT_CONTROLS and GUEST/HOST_IA32_EFER */ vmx_set_efer(vcpu, vcpu->arch.efer); - if (vmx->nested.dirty_vmcs12) { - prepare_vmcs02_full(vcpu, vmcs12, from_vmentry); - vmx->nested.dirty_vmcs12 = false; - } - /* Shadow page tables on either EPT or shadow page tables. */ if (nested_vmx_load_cr3(vcpu, vmcs12->guest_cr3, nested_cpu_has_ept(vmcs12), entry_failure_code)) |