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authorLinus Torvalds <torvalds@linux-foundation.org>2023-02-04 11:21:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2023-02-04 11:21:27 -0800
commitc00f4ddde0943cf54499bc380ffca6376af2d945 (patch)
tree24105e4f94420e507bc1cbe30c1980ca8acca36d /Documentation
parent2ab2ba494db2dbfbb541ae27f69317e1c089ea51 (diff)
parent25b72cf7da9f0d66eef3979187ddfda98d4efcd0 (diff)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini: "ARM64: - Yet another fix for non-CPU accesses to the memory backing the VGICv3 subsystem - A set of fixes for the setlftest checking for the S1PTW behaviour after the fix that went in ealier in the cycle" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: selftests: aarch64: Test read-only PT memory regions KVM: selftests: aarch64: Fix check of dirty log PT write KVM: selftests: aarch64: Do not default to dirty PTE pages on all S1PTWs KVM: selftests: aarch64: Relax userfaultfd read vs. write checks KVM: arm64: Allow no running vcpu on saving vgic3 pending table KVM: arm64: Allow no running vcpu on restoring vgic3 LPI pending status KVM: arm64: Add helper vgic_write_guest_lock()
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/virt/kvm/api.rst10
1 files changed, 7 insertions, 3 deletions
diff --git a/Documentation/virt/kvm/api.rst b/Documentation/virt/kvm/api.rst
index 9807b05a1b57..0a67cb738013 100644
--- a/Documentation/virt/kvm/api.rst
+++ b/Documentation/virt/kvm/api.rst
@@ -8070,9 +8070,13 @@ considering the state as complete. VMM needs to ensure that the dirty
state is final and avoid missing dirty pages from another ioctl ordered
after the bitmap collection.
-NOTE: One example of using the backup bitmap is saving arm64 vgic/its
-tables through KVM_DEV_ARM_{VGIC_GRP_CTRL, ITS_SAVE_TABLES} command on
-KVM device "kvm-arm-vgic-its" when dirty ring is enabled.
+NOTE: Multiple examples of using the backup bitmap: (1) save vgic/its
+tables through command KVM_DEV_ARM_{VGIC_GRP_CTRL, ITS_SAVE_TABLES} on
+KVM device "kvm-arm-vgic-its". (2) restore vgic/its tables through
+command KVM_DEV_ARM_{VGIC_GRP_CTRL, ITS_RESTORE_TABLES} on KVM device
+"kvm-arm-vgic-its". VGICv3 LPI pending status is restored. (3) save
+vgic3 pending table through KVM_DEV_ARM_VGIC_{GRP_CTRL, SAVE_PENDING_TABLES}
+command on KVM device "kvm-arm-vgic-v3".
8.30 KVM_CAP_XEN_HVM
--------------------