Displaying 6 results from an estimated 6 matches for "emulation_typ".
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emulation_type
[PATCH v9 36/84] KVM: x86: disable gpa_available optimization for fetch and page-walk SPT violations
2020 Jul 21
0
[PATCH v9 36/84] KVM: x86: disable gpa_available optimization for fetch and page-walk SPT violations
...58,6 +1462,7 @@ extern u64 kvm_mce_cap_supported;
#define EMULTYPE_TRAP_UD_FORCED (1 << 4)
#define EMULTYPE_VMWARE_GP (1 << 5)
#define EMULTYPE_PF (1 << 6)
+#define EMULTYPE_GPA_AVAILABLE_PF (1 << 7)
int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type);
int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu,
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index da57321e0cec..4df5b729e2c5 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5566,6 +5566,14 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_...
2020 Feb 07
0
[RFC PATCH v7 35/78] KVM: x86: disable gpa_available optimization for fetch and page-walk NPF/EPT violations
...d, 7 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 5f0ddc6b67de..d28b7425c4f1 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5636,8 +5636,13 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u64 error_code,
int r, emulation_type = 0;
bool direct = vcpu->arch.mmu->direct_map;
- /* With shadow page tables, fault_address contains a GVA or nGPA. */
- if (vcpu->arch.mmu->direct_map) {
+ /*
+ * With shadow page tables, fault_address contains a GVA or nGPA.
+ * On a fetch fault, fault_address contains the inst...
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place
2019 Aug 09
117
[RFC PATCH v6 00/92] VM introspection
The KVM introspection subsystem provides a facility for applications running
on the host or in a separate VM, to control the execution of other VM-s
(pause, resume, shutdown), query the state of the vCPUs (GPRs, MSRs etc.),
alter the page access bits in the shadow page tables (only for the hardware
backed ones, eg. Intel's EPT) and receive notifications when events of
interest have taken place
2020 Jul 21
87
[PATCH v9 00/84] VM introspection
The KVM introspection subsystem provides a facility for applications
running on the host or in a separate VM, to control the execution of
other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs,
MSRs etc.), alter the page access bits in the shadow page tables (only
for the hardware backed ones, eg. Intel's EPT) and receive notifications
when events of interest have taken place
2020 Feb 07
78
[RFC PATCH v7 00/78] VM introspection
The KVM introspection subsystem provides a facility for applications
running on the host or in a separate VM, to control the execution of
other VMs (pause, resume, shutdown), query the state of the vCPUs (GPRs,
MSRs etc.), alter the page access bits in the shadow page tables (only
for the hardware backed ones, eg. Intel's EPT) and receive notifications
when events of interest have taken place