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[v2,02/13] KVM: Add KVM_MEMORY_EXIT_FLAG_USERFAULT

Message ID 20250109204929.1106563-3-jthoughton@google.com (mailing list archive)
State New
Headers show
Series KVM: Introduce KVM Userfault | expand

Commit Message

James Houghton Jan. 9, 2025, 8:49 p.m. UTC 
This flag is used for vCPU memory faults caused by KVM Userfault; i.e.,
the bit in `userfault_bitmap` corresponding to the faulting gfn was set.

Signed-off-by: James Houghton <jthoughton@google.com>
---
 include/uapi/linux/kvm.h | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 7ade5169d373..c302edf1c984 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -444,6 +444,7 @@  struct kvm_run {
 		/* KVM_EXIT_MEMORY_FAULT */
 		struct {
 #define KVM_MEMORY_EXIT_FLAG_PRIVATE	(1ULL << 3)
+#define KVM_MEMORY_EXIT_FLAG_USERFAULT	(1ULL << 4)
 			__u64 flags;
 			__u64 gpa;
 			__u64 size;