tree bfca7a0e52e4a4e7857a2e9fc0ff9f98e9f26dfa
parent 69a9f69bb24d6d3dbf3d2ba542ddceeda40536d5
author Izik Eidus <izike@qumranet.com> 1206029844 +0200
committer Avi Kivity <avi@qumranet.com> 1209286834 +0300

KVM: MMU: fix dirty bit setting when removing write permissions

When mmu_set_spte() checks if a page related to spte should be release as
dirty or clean, it check if the shadow pte was writeble, but in case
rmap_write_protect() is called called it is possible for shadow ptes that were
writeble to become readonly and therefor mmu_set_spte will release the pages
as clean.

This patch fix this issue by marking the page as dirty inside
rmap_write_protect().

Signed-off-by: Izik Eidus <izike@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>