mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-05 00:20:32 +00:00
kvm: arm/arm64: Fix stage2_flush_memslot for 4 level page table
[ Upstream commit d2db7773ba
]
So far we have only supported 3 level page table with fixed IPA of
40bits, where PUD is folded. With 4 level page tables, we need
to check if the PUD entry is valid or not. Fix stage2_flush_memslot()
to do this check, before walking down the table.
Acked-by: Christoffer Dall <cdall@kernel.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
parent
bae080e72e
commit
256a294807
1 changed files with 2 additions and 1 deletions
|
@ -412,7 +412,8 @@ static void stage2_flush_memslot(struct kvm *kvm,
|
|||
pgd = kvm->arch.pgd + stage2_pgd_index(addr);
|
||||
do {
|
||||
next = stage2_pgd_addr_end(addr, end);
|
||||
stage2_flush_puds(kvm, pgd, addr, next);
|
||||
if (!stage2_pgd_none(*pgd))
|
||||
stage2_flush_puds(kvm, pgd, addr, next);
|
||||
} while (pgd++, addr = next, addr != end);
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in a new issue