Commits
Marc Zyngier committed 660cd2235c5
arm/arm64: KVM: Enforce Break-Before-Make on Stage-2 page tables [ Upstream commit d4b9e0790aa764c0b01e18d4e8d33e93ba36d51f ] The ARM architecture mandates that when changing a page table entry from a valid entry to another valid entry, an invalid entry is first written, TLB invalidated, and only then the new entry being written. The current code doesn't respect this, directly writing the new entry and only then invalidating TLBs. Let's fix it up. Cc: <stable@vger.kernel.org> Reported-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Sasha Levin <sasha.levin@oracle.com>