diff options
| -rw-r--r-- | drivers/kvm/mmu.c | 36 | ||||
| -rw-r--r-- | drivers/kvm/svm.c | 33 | ||||
| -rw-r--r-- | drivers/kvm/vmx.c | 29 | ||||
| -rw-r--r-- | drivers/kvm/x86.h | 6 |
4 files changed, 39 insertions, 65 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c index d9c5950cfae..ace3cb86214 100644 --- a/drivers/kvm/mmu.c +++ b/drivers/kvm/mmu.c @@ -1347,6 +1347,42 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) } } +int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code) +{ + int r; + enum emulation_result er; + + mutex_lock(&vcpu->kvm->lock); + r = vcpu->mmu.page_fault(vcpu, cr2, error_code); + if (r < 0) + goto out; + + if (!r) { + r = 1; + goto out; + } + + er = emulate_instruction(vcpu, vcpu->run, cr2, error_code, 0); + mutex_unlock(&vcpu->kvm->lock); + + switch (er) { + case EMULATE_DONE: + return 1; + case EMULATE_DO_MMIO: + ++vcpu->stat.mmio_exits; + return 0; + case EMULATE_FAIL: + kvm_report_emulation_failure(vcpu, "pagetable"); + return 1; + default: + BUG(); + } +out: + mutex_unlock(&vcpu->kvm->lock); + return r; +} +EXPORT_SYMBOL_GPL(kvm_mmu_page_fault); + static void free_mmu_pages(struct kvm_vcpu *vcpu) { struct kvm_mmu_page *page; diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c index fe2a5e8b052..97863f8fd00 100644 --- a/drivers/kvm/svm.c +++ b/drivers/kvm/svm.c @@ -933,45 +933,14 @@ static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) struct kvm *kvm = svm->vcpu.kvm; u64 fault_address; u32 error_code; - enum emulation_result er; - int r; if (!irqchip_in_kernel(kvm) && is_external_interrupt(exit_int_info)) push_irq(&svm->vcpu, exit_int_info & SVM_EVTINJ_VEC_MASK); - mutex_lock(&kvm->lock); - fault_address = svm->vmcb->control.exit_info_2; error_code = svm->vmcb->control.exit_info_1; - r = kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code); - if (r < 0) { - mutex_unlock(&kvm->lock); - return r; - } - if (!r) { - mutex_unlock(&kvm->lock); - return 1; - } - er = emulate_instruction(&svm->vcpu, kvm_run, fault_address, - error_code, 0); - mutex_unlock(&kvm->lock); - - switch (er) { - case EMULATE_DONE: - return 1; - case EMULATE_DO_MMIO: - ++svm->vcpu.stat.mmio_exits; - return 0; - case EMULATE_FAIL: - kvm_report_emulation_failure(&svm->vcpu, "pagetable"); - break; - default: - BUG(); - } - - kvm_run->exit_reason = KVM_EXIT_UNKNOWN; - return 0; + return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code); } static int ud_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) diff --git a/drivers/kvm/vmx.c b/drivers/kvm/vmx.c index 2d7d638d72d..7fe834cb0d8 100644 --- a/drivers/kvm/vmx.c +++ b/drivers/kvm/vmx.c @@ -1796,7 +1796,6 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) unsigned long cr2, rip; u32 vect_info; enum emulation_result er; - int r; vect_info = vmcs_read32(IDT_VECTORING_INFO_FIELD); intr_info = vmcs_read32(VM_EXIT_INTR_INFO); @@ -1834,33 +1833,7 @@ static int handle_exception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) error_code = vmcs_read32(VM_EXIT_INTR_ERROR_CODE); if (is_page_fault(intr_info)) { cr2 = vmcs_readl(EXIT_QUALIFICATION); - - mutex_lock(&vcpu->kvm->lock); - r = kvm_mmu_page_fault(vcpu, cr2, error_code); - if (r < 0) { - mutex_unlock(&vcpu->kvm->lock); - return r; - } - if (!r) { - mutex_unlock(&vcpu->kvm->lock); - return 1; - } - - er = emulate_instruction(vcpu, kvm_run, cr2, error_code, 0); - mutex_unlock(&vcpu->kvm->lock); - - switch (er) { - case EMULATE_DONE: - return 1; - case EMULATE_DO_MMIO: - ++vcpu->stat.mmio_exits; - return 0; - case EMULATE_FAIL: - kvm_report_emulation_failure(vcpu, "pagetable"); - break; - default: - BUG(); - } + return kvm_mmu_page_fault(vcpu, cr2, error_code); } if (vcpu->rmode.active && diff --git a/drivers/kvm/x86.h b/drivers/kvm/x86.h index 01452b552db..20da8e9751c 100644 --- a/drivers/kvm/x86.h +++ b/drivers/kvm/x86.h @@ -85,11 +85,7 @@ struct kvm_vcpu { struct x86_emulate_ctxt emulate_ctxt; }; -static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, - u32 error_code) -{ - return vcpu->mmu.page_fault(vcpu, gva, error_code); -} +int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); static inline void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu) { |