Displaying 3 results from an estimated 3 matches for "kvmi_vcpu_get_xcr_reply".
2020 Jul 21
0
[PATCH v9 69/84] KVM: introspection: add KVMI_VCPU_GET_XCR
...xt to the maximum accessible GFN.
+18. KVMI_VCPU_GET_XCR
+---------------------
+
+:Architecture: x86
+:Versions: >= 1
+:Parameters:
+
+::
+
+ struct kvmi_vcpu_hdr;
+ struct kvmi_vcpu_get_xcr {
+ __u8 xcr;
+ __u8 padding[7];
+ };
+
+:Returns:
+
+::
+
+ struct kvmi_error_code;
+ struct kvmi_vcpu_get_xcr_reply {
+ u64 value;
+ };
+
+Returns the value of an extended control register XCR.
+
+:Errors:
+
+* -KVM_EINVAL - the selected vCPU is invalid
+* -KVM_EINVAL - the specified control register is not XCR0
+* -KVM_EINVAL - the padding is not zero
+* -KVM_EAGAIN - the selected vCPU can't be introspecte...
2020 Jul 21
0
[PATCH v9 70/84] KVM: introspection: add KVMI_VCPU_GET_XSAVE
...OMEM - there is not enough memory to allocate the reply
+
Events
======
diff --git a/arch/x86/include/uapi/asm/kvmi.h b/arch/x86/include/uapi/asm/kvmi.h
index cc4cb85366c8..a165c259ba0e 100644
--- a/arch/x86/include/uapi/asm/kvmi.h
+++ b/arch/x86/include/uapi/asm/kvmi.h
@@ -99,4 +99,8 @@ struct kvmi_vcpu_get_xcr_reply {
u64 value;
};
+struct kvmi_vcpu_get_xsave_reply {
+ __u32 region[0];
+};
+
#endif /* _UAPI_ASM_X86_KVMI_H */
diff --git a/arch/x86/kvm/kvmi.c b/arch/x86/kvm/kvmi.c
index ff70c9a33ccf..7b7122784f0f 100644
--- a/arch/x86/kvm/kvmi.c
+++ b/arch/x86/kvm/kvmi.c
@@ -737,3 +737,27 @@ int kvmi_arch_...
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