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arm/arm64: KVM: use __GFP_ZERO not memset() to get zeroed pages
Pass __GFP_ZERO to __get_free_pages() instead of calling memset() explicitly. Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
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@ -528,11 +528,10 @@ int kvm_alloc_stage2_pgd(struct kvm *kvm)
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return -EINVAL;
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return -EINVAL;
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}
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}
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pgd = (pgd_t *)__get_free_pages(GFP_KERNEL, S2_PGD_ORDER);
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pgd = (pgd_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, S2_PGD_ORDER);
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if (!pgd)
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if (!pgd)
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return -ENOMEM;
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return -ENOMEM;
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memset(pgd, 0, PTRS_PER_S2_PGD * sizeof(pgd_t));
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kvm_clean_pgd(pgd);
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kvm_clean_pgd(pgd);
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kvm->arch.pgd = pgd;
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kvm->arch.pgd = pgd;
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