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authorPunit Agrawal <punit.agrawal@arm.com>2018-02-28 16:40:09 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-03 10:23:28 +0100
commit25039c139fdefd660b3a8ecfd001919fc3ced92d (patch)
treef4722f9624d5530169bd5671e10dfa55e3dcb66f
parent3eb222174ee8b6280e552f71ed68f890bbbdc437 (diff)
KVM: arm/arm64: Fix check for hugepage size when allocating at Stage 2
Commit 45ee9d5e97a4 ("KVM: arm/arm64: Check pagesize when allocating a hugepage at Stage 2") lost the check for PMD_SIZE during the backport to 4.9. Fix this by correcting the condition to detect hugepages during stage 2 allocation. Fixes: 45ee9d5e97a4 ("KVM: arm/arm64: Check pagesize when allocating a hugepage at Stage 2") Reported-by: Ioana Ciornei <ioana.ciornei@nxp.com> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/arm/kvm/mmu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 2a35c1963f6d..7f868d9bb5ed 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -1284,7 +1284,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
return -EFAULT;
}
- if (vma_kernel_pagesize(vma) && !logging_active) {
+ if (vma_kernel_pagesize(vma) == PMD_SIZE && !logging_active) {
hugetlb = true;
gfn = (fault_ipa & PMD_MASK) >> PAGE_SHIFT;
} else {