Displaying 4 results from an estimated 4 matches for "kvm_update_dr7".
2020 Jul 21
0
[PATCH v9 29/84] KVM: x86: export kvm_inject_pending_exception()
...vcpu->arch.exception.nr) == EXCPT_FAULT)
+ __kvm_set_rflags(vcpu, kvm_get_rflags(vcpu) |
+ X86_EFLAGS_RF);
+
+ if (vcpu->arch.exception.nr == DB_VECTOR) {
+ kvm_deliver_exception_payload(vcpu);
+ if (vcpu->arch.dr7 & DR7_GD) {
+ vcpu->arch.dr7 &= ~DR7_GD;
+ kvm_update_dr7(vcpu);
+ }
+ }
+
+ kvm_x86_ops.queue_exception(vcpu);
+ return true;
+ }
+
+ return false;
+}
+
static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit)
{
int r;
@@ -7821,29 +7851,8 @@ static void inject_pending_event(struct kvm_vcpu *vcpu, bool *req_immediate_exit...
2020 Feb 07
0
[RFC PATCH v7 28/78] KVM: x86: export kvm_inject_pending_exception()
...+ * L2. (Under VMX, on the other hand, the
+ * DR6/DR7 changes should not happen in the
+ * event of a VM-exit to L1 for an intercepted
+ * #DB in L2.)
+ */
+ kvm_deliver_exception_payload(vcpu);
+ if (vcpu->arch.dr7 & DR7_GD) {
+ vcpu->arch.dr7 &= ~DR7_GD;
+ kvm_update_dr7(vcpu);
+ }
+ }
+
+ kvm_x86_ops->queue_exception(vcpu);
+ }
+}
+
static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
{
int r;
@@ -7565,39 +7602,7 @@ static int inject_pending_event(struct kvm_vcpu *vcpu, bool req_int_win)
}
/* try to inject new event if pending...
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
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