Commit 7788a280 authored Sep 26, 2018 by Suzuki K Poulose Committed by Marc Zyngier Oct 01, 2018

kvm: arm/arm64: Remove spurious WARN_ON



On a 4-level page table pgd entry can be empty, unlike a 3-level
page table. Remove the spurious WARN_ON() in stage_get_pud().

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>

parent d2db7773

virt/kvm/arm/mmu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1005,7 +1005,7 @@ static pud_t stage2_get_pud(struct kvm kvm, struct kvm_mmu_memory_cache *cache
		pud_t *pud;

		pgd = kvm->arch.pgd + stage2_pgd_index(addr);
		if (WARN_ON(stage2_pgd_none(*pgd))) {
		if (stage2_pgd_none(*pgd)) {
		if (!cache)
		return NULL;
		pud = mmu_memory_cache_alloc(cache);

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