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authorSheng Yang <sheng@linux.intel.com>2010-06-13 11:29:39 +0200
committerAvi Kivity <avi@redhat.com>2010-08-01 09:46:37 +0200
commit2d5b5a665508c60577c1088e0405850a965b6795 (patch)
tree3549325770a39b0c7fd2b7f81aa6fa42295803e2 /arch/x86/include/asm/kvm.h
parentKVM: PPC: fix build warning in kvm_arch_vcpu_ioctl_run (diff)
downloadlinux-2d5b5a665508c60577c1088e0405850a965b6795.tar.xz
linux-2d5b5a665508c60577c1088e0405850a965b6795.zip
KVM: x86: XSAVE/XRSTOR live migration support
This patch enable save/restore of xsave state. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm.h')
-rw-r--r--arch/x86/include/asm/kvm.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h
index ff90055c7f0b..4d8dcbdfc120 100644
--- a/arch/x86/include/asm/kvm.h
+++ b/arch/x86/include/asm/kvm.h
@@ -22,6 +22,8 @@
#define __KVM_HAVE_XEN_HVM
#define __KVM_HAVE_VCPU_EVENTS
#define __KVM_HAVE_DEBUGREGS
+#define __KVM_HAVE_XSAVE
+#define __KVM_HAVE_XCRS
/* Architectural interrupt line count. */
#define KVM_NR_INTERRUPTS 256
@@ -299,4 +301,24 @@ struct kvm_debugregs {
__u64 reserved[9];
};
+/* for KVM_CAP_XSAVE */
+struct kvm_xsave {
+ __u32 region[1024];
+};
+
+#define KVM_MAX_XCRS 16
+
+struct kvm_xcr {
+ __u32 xcr;
+ __u32 reserved;
+ __u64 value;
+};
+
+struct kvm_xcrs {
+ __u32 nr_xcrs;
+ __u32 flags;
+ struct kvm_xcr xcrs[KVM_MAX_XCRS];
+ __u64 padding[16];
+};
+
#endif /* _ASM_X86_KVM_H */