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authorIzik Eidus <ieidus@redhat.com>2009-06-10 16:23:24 (GMT)
committerAvi Kivity <avi@redhat.com>2009-06-28 11:10:29 (GMT)
commite244584fe3a5c20deddeca246548ac86dbc6e1d1 (patch)
treea5765ee9610362cefb9a9cdf2a63de11ae73f479 /virt
parent4075ea8c54a7506844a69f674990241e7766357b (diff)
downloadlinux-fsl-qoriq-e244584fe3a5c20deddeca246548ac86dbc6e1d1.tar.xz
KVM: Fix dirty bit tracking for slots with large pages
When slot is already allocated and being asked to be tracked we need to break the large pages. This code flush the mmu when someone ask a slot to start dirty bit tracking. Cc: stable@kernel.org Signed-off-by: Izik Eidus <ieidus@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_main.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7645543..013a5b3 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1194,6 +1194,8 @@ int __kvm_set_memory_region(struct kvm *kvm,
if (!new.dirty_bitmap)
goto out_free;
memset(new.dirty_bitmap, 0, dirty_bytes);
+ if (old.npages)
+ kvm_arch_flush_shadow(kvm);
}
#endif /* not defined CONFIG_S390 */