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authorGleb Natapov <gleb@redhat.com>2010-10-14 13:22:55 +0400
committerAvi Kivity <avi@redhat.com>2011-01-12 12:23:21 +0300
commit6adba527420651b6cacaf392541c09fb108711a2 (patch)
tree1f81e4fc0bdf46b39ed62587a493f085633e8ac1 /arch/x86/include/asm/kvm_para.h
parent6c047cd982f944fa63b2d96de2a06463d113f9fa (diff)
downloadlinux-6adba527420651b6cacaf392541c09fb108711a2.tar.xz
KVM: Let host know whether the guest can handle async PF in non-userspace context.
If guest can detect that it runs in non-preemptable context it can handle async PFs at any time, so let host know that it can send async PF even if guest cpu is not in userspace. Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/kvm_para.h')
-rw-r--r--arch/x86/include/asm/kvm_para.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index fbfd3679bc18..d3a1a4805ab8 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -38,6 +38,7 @@
#define KVM_MAX_MMU_OP_BATCH 32
#define KVM_ASYNC_PF_ENABLED (1 << 0)
+#define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
/* Operations for KVM_HC_MMU_OP */
#define KVM_MMU_OP_WRITE_PTE 1