| commit | 3f0075cdbdd8ec09cd04034c87d1d1fb9069571e | |
| author | Suzuki K Poulose <Suzuki.Poulose@arm.com> | |
| Wed, 5 Jul 2017 08:57:00 +0000 (5 09:57 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Sun, 13 Aug 2017 02:31:23 +0000 (12 19:31 -0700) | ||
| tree | 7ad88390801d0eab154e97b3c33533cd1111ff8a | treesnapshot (tar.gz zip) |
| parent | 6309eb77d823393ff427312bfd53e2b7f1bdcab2 | commitdiff |
KVM: arm/arm64: Handle hva aging while destroying the vm
commit 7e5a672289c9754d07e1c3b33649786d3d70f5e4 upstream.
The mmu_notifier_release() callback of KVM triggers cleaning up
the stage2 page table on kvm-arm. However there could be other
notifier callbacks in parallel with the mmu_notifier_release(),
which could cause the call backs ending up in an empty stage2
page table. Make sure we check it for all the notifier callbacks.
Fixes: commit 293f29363 ("kvm-arm: Unmap shadow pagetables properly")
Reported-by: Alex Graf <agraf@suse.de>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 7e5a672289c9754d07e1c3b33649786d3d70f5e4 upstream.
The mmu_notifier_release() callback of KVM triggers cleaning up
the stage2 page table on kvm-arm. However there could be other
notifier callbacks in parallel with the mmu_notifier_release(),
which could cause the call backs ending up in an empty stage2
page table. Make sure we check it for all the notifier callbacks.
Fixes: commit 293f29363 ("kvm-arm: Unmap shadow pagetables properly")
Reported-by: Alex Graf <agraf@suse.de>
Reviewed-by: Christoffer Dall <cdall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| arch/arm/kvm/mmu.c | diffblobblamehistory |