| Message ID | 1530270944-11351-7-git-send-email-suzuki.poulose@arm.com |
|---|---|
| State | New |
| Headers | show |
| Series | arm64: Dynamic & 52bit IPA support | expand |
Hi Suzuki, On 06/29/2018 01:15 PM, Suzuki K Poulose wrote: > 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(). > > Cc: Marc Zyngier <marc.zyngier@arm.com> > Acked-by: Christoffer Dall <cdall@kernel.org> > Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> > --- > virt/kvm/arm/mmu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c > index 061e6b3..308171c 100644 > --- a/virt/kvm/arm/mmu.c > +++ b/virt/kvm/arm/mmu.c > @@ -976,7 +976,7 @@ 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); > Reviewed-by: Eric Auger <eric.auger@redhat.com> Thanks Eric
On 29/06/18 12:15, Suzuki K Poulose wrote: > 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(). > > Cc: Marc Zyngier <marc.zyngier@arm.com> > Acked-by: Christoffer Dall <cdall@kernel.org> > Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> > --- > virt/kvm/arm/mmu.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c > index 061e6b3..308171c 100644 > --- a/virt/kvm/arm/mmu.c > +++ b/virt/kvm/arm/mmu.c > @@ -976,7 +976,7 @@ 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); > Acked-by: Marc Zyngier <marc.zyngier@arm.com> M.
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c index 061e6b3..308171c 100644 --- a/virt/kvm/arm/mmu.c +++ b/virt/kvm/arm/mmu.c @@ -976,7 +976,7 @@ 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);