Displaying 4 results from an estimated 4 matches for "old_xcr0".
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old_cr0
2020 Jul 21
0
[PATCH v9 68/84] KVM: introspection: add KVMI_EVENT_XSETBV
...ch/x86/kvm/x86.c
index af987ad1a174..c3557a11817f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -919,6 +919,12 @@ static int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
}
vcpu->arch.xcr0 = xcr0;
+#ifdef CONFIG_KVM_INTROSPECTION
+ if (index == 0 && xcr0 != old_xcr0)
+ kvmi_xsetbv_event(vcpu, 0, old_xcr0, xcr0);
+#endif /* CONFIG_KVM_INTROSPECTION */
+
+
if ((xcr0 ^ old_xcr0) & XFEATURE_MASK_EXTEND)
kvm_update_cpuid(vcpu);
return 0;
diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h
index 2a4cc8c41465..348a9a551091 100644
--- a/incl...
2020 Feb 07
0
[RFC PATCH v7 64/78] KVM: introspection: add KVMI_EVENT_XSETBV
...ch/x86/kvm/x86.c
index ff61123ce4bd..fa583f82298e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -866,6 +866,12 @@ static int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
}
vcpu->arch.xcr0 = xcr0;
+#ifdef CONFIG_KVM_INTROSPECTION
+ if (index == 0 && xcr0 != old_xcr0)
+ kvmi_xsetbv_event(vcpu);
+#endif /* CONFIG_KVM_INTROSPECTION */
+
+
if ((xcr0 ^ old_xcr0) & XFEATURE_MASK_EXTEND)
kvm_update_cpuid(vcpu);
return 0;
diff --git a/include/uapi/linux/kvmi.h b/include/uapi/linux/kvmi.h
index 70d5a67badef..3ea4882ac469 100644
--- a/include/uapi/linux/kvmi...
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