diff options
| author | Wanpeng Li <wanpengli@tencent.com> | 2018-04-04 02:28:48 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-04-04 20:03:58 +0300 |
| commit | 082d06edab49f302eb96b7a9d029f52713156354 (patch) | |
| tree | 18f6005208f65fbfa2a13f52ae47aeb18ee3bd77 /arch/x86 | |
| parent | 4fde8d57cfa8236818459adfc4f8bd7d353c153e (diff) | |
| download | linux-082d06edab49f302eb96b7a9d029f52713156354.tar.xz | |
KVM: X86: Introduce handle_ud()
Introduce handle_ud() to handle invalid opcode, this function will be
used by later patches.
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Liran Alon <liran.alon@oracle.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim KrÄmář <rkrcmar@redhat.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Liran Alon <liran.alon@oracle.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/svm.c | 9 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx.c | 10 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 13 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.h | 2 |
4 files changed, 18 insertions, 16 deletions
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index f66fc2ee9058..e0a3f56a791d 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -2676,14 +2676,7 @@ static int bp_interception(struct vcpu_svm *svm) static int ud_interception(struct vcpu_svm *svm) { - int er; - - er = emulate_instruction(&svm->vcpu, EMULTYPE_TRAP_UD); - if (er == EMULATE_USER_EXIT) - return 0; - if (er != EMULATE_DONE) - kvm_queue_exception(&svm->vcpu, UD_VECTOR); - return 1; + return handle_ud(&svm->vcpu); } static int ac_interception(struct vcpu_svm *svm) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index a1572461786e..59d91516a622 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -6434,14 +6434,8 @@ static int handle_exception(struct kvm_vcpu *vcpu) if (is_nmi(intr_info)) return 1; /* already handled by vmx_vcpu_run() */ - if (is_invalid_opcode(intr_info)) { - er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD); - if (er == EMULATE_USER_EXIT) - return 0; - if (er != EMULATE_DONE) - kvm_queue_exception(vcpu, UD_VECTOR); - return 1; - } + if (is_invalid_opcode(intr_info)) + return handle_ud(vcpu); error_code = 0; if (intr_info & INTR_INFO_DELIVER_CODE_MASK) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 7d9a444f2f24..1eb495e04fd3 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -4840,6 +4840,19 @@ out: } EXPORT_SYMBOL_GPL(kvm_write_guest_virt_system); +int handle_ud(struct kvm_vcpu *vcpu) +{ + enum emulation_result er; + + er = emulate_instruction(vcpu, EMULTYPE_TRAP_UD); + if (er == EMULATE_USER_EXIT) + return 0; + if (er != EMULATE_DONE) + kvm_queue_exception(vcpu, UD_VECTOR); + return 1; +} +EXPORT_SYMBOL_GPL(handle_ud); + static int vcpu_is_mmio_gpa(struct kvm_vcpu *vcpu, unsigned long gva, gpa_t gpa, bool write) { diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h index 1e8617414ee4..7d35ce672989 100644 --- a/arch/x86/kvm/x86.h +++ b/arch/x86/kvm/x86.h @@ -255,6 +255,8 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt, gva_t addr, void *val, unsigned int bytes, struct x86_exception *exception); +int handle_ud(struct kvm_vcpu *vcpu); + void kvm_vcpu_mtrr_init(struct kvm_vcpu *vcpu); u8 kvm_mtrr_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn); bool kvm_mtrr_valid(struct kvm_vcpu *vcpu, u32 msr, u64 data); |