Convert kvm_phys_addr_ioremap() to use kvm_pgtable_stage2_map() instead
of stage2_set_pte().
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Cc: Quentin Perret <qperret@xxxxxxxxxx>
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
---
arch/arm64/kvm/mmu.c | 24 ++++++++++--------------
1 file changed, 10 insertions(+), 14 deletions(-)
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index ecca611f208b..90310fd16d85 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1171,31 +1171,27 @@ static int stage2_pudp_test_and_clear_young(pud_t *pud)
int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
phys_addr_t pa, unsigned long size, bool writable)
{
- phys_addr_t addr, end;
+ phys_addr_t addr;
int ret = 0;
- unsigned long pfn;
struct kvm_mmu_memory_cache cache = { 0, };
+ void *cookie = kvm->arch.mmu.pgt_cookie;
+ enum kvm_pgtable_prot prot = KVM_PGTABLE_PROT_DEVICE |
+ KVM_PGTABLE_PROT_R |
+ (writable ? KVM_PGTABLE_PROT_W : 0);
- end = (guest_ipa + size + PAGE_SIZE - 1) & PAGE_MASK;
- pfn = __phys_to_pfn(pa);
-
- for (addr = guest_ipa; addr < end; addr += PAGE_SIZE) {
- pte_t pte = kvm_pfn_pte(pfn, PAGE_S2_DEVICE);
-
- if (writable)
- pte = kvm_s2pte_mkwrite(pte);
-
+ for (addr = guest_ipa; addr < guest_ipa + size; addr += PAGE_SIZE) {
ret = mmu_topup_memory_cache(kvm, &cache);
if (ret)
break;
+
spin_lock(&kvm->mmu_lock);
- ret = stage2_set_pte(&kvm->arch.mmu, &cache, addr, &pte,
- KVM_S2PTE_FLAG_IS_IOMAP);
+ ret = kvm_pgtable_stage2_map(cookie, addr, PAGE_SIZE, pa, prot,
+ &cache);
spin_unlock(&kvm->mmu_lock);
if (ret)
break;
- pfn++;
+ pa += PAGE_SIZE;
}
return ret;
--
2.28.0.rc0.142.g3c755180ce-goog
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