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authorMichael S. Tsirkin <mst@redhat.com>2012-06-24 19:24:19 +0300
committerAvi Kivity <avi@redhat.com>2012-06-25 12:37:14 +0300
commit5eadf916dfa04c3c51397dbcb803ce8735bf191a (patch)
tree726d1078e1c49b64456fa511507529d7b994e3af
parent9e40b67bf2bfaa40b28354c501a72fd001a1397a (diff)
KVM: document lapic regs field
Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
-rw-r--r--arch/x86/kvm/lapic.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 6f4ce2575d09..d29da25ea525 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -13,6 +13,11 @@ struct kvm_lapic {
u32 divide_count;
struct kvm_vcpu *vcpu;
bool irr_pending;
+ /**
+ * APIC register page. The layout matches the register layout seen by
+ * the guest 1:1, because it is accessed by the vmx microcode.
+ * Note: Only one register, the TPR, is used by the microcode.
+ */
void *regs;
gpa_t vapic_addr;
struct page *vapic_page;