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KVM: arm64: Convert memslot cache-flushing code to generic page-table API

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Convert stage2_flush_memslot() to call the kvm_pgtable_stage2_flush()
function of the generic page-table code instead of walking the page-table
directly.

Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Cc: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20200911132529.19844-16-will@kernel.org
This commit is contained in:
Quentin Perret 2020-09-11 14:25:23 +01:00 committed by Marc Zyngier
parent 93c66b40d7
commit 8d5207bef6
1 changed files with 1 additions and 12 deletions
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13
arch/arm64/kvm/mmu.c
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@ -460,21 +460,10 @@ static void stage2_flush_p4ds(struct kvm_s2_mmu *mmu, pgd_t *pgd,
static void stage2_flush_memslot(struct kvm *kvm,
struct kvm_memory_slot *memslot)
{
struct kvm_s2_mmu *mmu = &kvm->arch.mmu;
phys_addr_t addr = memslot->base_gfn << PAGE_SHIFT;
phys_addr_t end = addr + PAGE_SIZE * memslot->npages;
phys_addr_t next;
pgd_t *pgd;
pgd = mmu->pgd + stage2_pgd_index(kvm, addr);
do {
next = stage2_pgd_addr_end(kvm, addr, end);
if (!stage2_pgd_none(kvm, *pgd))
stage2_flush_p4ds(mmu, pgd, addr, next);
if (next != end)
cond_resched_lock(&kvm->mmu_lock);
} while (pgd++, addr = next, addr != end);
stage2_apply_range_resched(kvm, addr, end, kvm_pgtable_stage2_flush);
}
/**