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[RFC,v1,14/34] KVM: introspection: add 'view' field to struct kvmi_event_arch

Message ID 20200722160121.9601-15-alazar@bitdefender.com (mailing list archive)
State New, archived
Headers show
Series VM introspection - EPT Views and Virtualization Exceptions | expand

Commit Message

Adalbert Lazăr July 22, 2020, 4:01 p.m. UTC 
From: Ștefan Șicleru <ssicleru@bitdefender.com>

Report the view a vCPU operates on when sending events to the
introspection tool.

Signed-off-by: Ștefan Șicleru <ssicleru@bitdefender.com>
Signed-off-by: Adalbert Lazăr <alazar@bitdefender.com>
---
 arch/x86/include/uapi/asm/kvmi.h | 4 +++-
 arch/x86/kvm/kvmi.c              | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/x86/include/uapi/asm/kvmi.h b/arch/x86/include/uapi/asm/kvmi.h
index 3087c685c232..a13a98fa863f 100644
--- a/arch/x86/include/uapi/asm/kvmi.h
+++ b/arch/x86/include/uapi/asm/kvmi.h
@@ -12,7 +12,9 @@ 
 
 struct kvmi_event_arch {
 	__u8 mode;		/* 2, 4 or 8 */
-	__u8 padding[7];
+	__u8 padding1;
+	__u16 view;
+	__u32 padding2;
 	struct kvm_regs regs;
 	struct kvm_sregs sregs;
 	struct {
diff --git a/arch/x86/kvm/kvmi.c b/arch/x86/kvm/kvmi.c
index bd31809ff812..292606902338 100644
--- a/arch/x86/kvm/kvmi.c
+++ b/arch/x86/kvm/kvmi.c
@@ -102,6 +102,7 @@  void kvmi_arch_setup_event(struct kvm_vcpu *vcpu, struct kvmi_event *ev)
 	kvm_arch_vcpu_get_sregs(vcpu, &event->sregs);
 	ev->arch.mode = kvmi_vcpu_mode(vcpu, &event->sregs);
 	kvmi_get_msrs(vcpu, event);
+	event->view = kvm_get_ept_view(vcpu);
 }
 
 int kvmi_arch_cmd_vcpu_get_info(struct kvm_vcpu *vcpu,