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kvm-arm: Use explicit stage2 helper routines

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We have stage2 page table helpers for both arm and arm64. Switch to
the stage2 helpers for routines that only deal with stage2 page table.

Cc: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
This commit is contained in:
Suzuki K Poulose 2016-03-22 18:33:45 +00:00 committed by Christoffer Dall
parent 66f877faf9
commit 70fd190685
1 changed files with 24 additions and 24 deletions
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48
arch/arm/kvm/mmu.c
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@ -319,9 +319,9 @@ static void stage2_flush_pmds(struct kvm *kvm, pud_t *pud,
pmd_t *pmd;
phys_addr_t next;
pmd = pmd_offset(pud, addr);
pmd = stage2_pmd_offset(pud, addr);
do {
next = kvm_pmd_addr_end(addr, end);
next = stage2_pmd_addr_end(addr, end);
if (!pmd_none(*pmd)) {
if (pmd_thp_or_huge(*pmd))
kvm_flush_dcache_pmd(*pmd);
@ -337,11 +337,11 @@ static void stage2_flush_puds(struct kvm *kvm, pgd_t *pgd,
pud_t *pud;
phys_addr_t next;
pud = pud_offset(pgd, addr);
pud = stage2_pud_offset(pgd, addr);
do {
next = kvm_pud_addr_end(addr, end);
if (!pud_none(*pud)) {
if (pud_huge(*pud))
next = stage2_pud_addr_end(addr, end);
if (!stage2_pud_none(*pud)) {
if (stage2_pud_huge(*pud))
kvm_flush_dcache_pud(*pud);
else
stage2_flush_pmds(kvm, pud, addr, next);
@ -357,9 +357,9 @@ static void stage2_flush_memslot(struct kvm *kvm,
phys_addr_t next;
pgd_t *pgd;
pgd = kvm->arch.pgd + kvm_pgd_index(addr);
pgd = kvm->arch.pgd + stage2_pgd_index(addr);
do {
next = kvm_pgd_addr_end(addr, end);
next = stage2_pgd_addr_end(addr, end);
stage2_flush_puds(kvm, pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}
@ -807,16 +807,16 @@ static pud_t *stage2_get_pud(struct kvm *kvm, struct kvm_mmu_memory_cache *cache
pgd_t *pgd;
pud_t *pud;
pgd = kvm->arch.pgd + kvm_pgd_index(addr);
if (WARN_ON(pgd_none(*pgd))) {
pgd = kvm->arch.pgd + stage2_pgd_index(addr);
if (WARN_ON(stage2_pgd_none(*pgd))) {
if (!cache)
return NULL;
pud = mmu_memory_cache_alloc(cache);
pgd_populate(NULL, pgd, pud);
stage2_pgd_populate(pgd, pud);
get_page(virt_to_page(pgd));
}
return pud_offset(pgd, addr);
return stage2_pud_offset(pgd, addr);
}
static pmd_t *stage2_get_pmd(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
@ -826,15 +826,15 @@ static pmd_t *stage2_get_pmd(struct kvm *kvm, struct kvm_mmu_memory_cache *cache
pmd_t *pmd;
pud = stage2_get_pud(kvm, cache, addr);
if (pud_none(*pud)) {
if (stage2_pud_none(*pud)) {
if (!cache)
return NULL;
pmd = mmu_memory_cache_alloc(cache);
pud_populate(NULL, pud, pmd);
stage2_pud_populate(pud, pmd);
get_page(virt_to_page(pud));
}
return pmd_offset(pud, addr);
return stage2_pmd_offset(pud, addr);
}
static int stage2_set_pmd_huge(struct kvm *kvm, struct kvm_mmu_memory_cache
@ -1042,10 +1042,10 @@ static void stage2_wp_pmds(pud_t *pud, phys_addr_t addr, phys_addr_t end)
pmd_t *pmd;
phys_addr_t next;
pmd = pmd_offset(pud, addr);
pmd = stage2_pmd_offset(pud, addr);
do {
next = kvm_pmd_addr_end(addr, end);
next = stage2_pmd_addr_end(addr, end);
if (!pmd_none(*pmd)) {
if (pmd_thp_or_huge(*pmd)) {
if (!kvm_s2pmd_readonly(pmd))
@ -1070,12 +1070,12 @@ static void stage2_wp_puds(pgd_t *pgd, phys_addr_t addr, phys_addr_t end)
pud_t *pud;
phys_addr_t next;
pud = pud_offset(pgd, addr);
pud = stage2_pud_offset(pgd, addr);
do {
next = kvm_pud_addr_end(addr, end);
if (!pud_none(*pud)) {
next = stage2_pud_addr_end(addr, end);
if (!stage2_pud_none(*pud)) {
/* TODO:PUD not supported, revisit later if supported */
BUG_ON(pud_huge(*pud));
BUG_ON(stage2_pud_huge(*pud));
stage2_wp_pmds(pud, addr, next);
}
} while (pud++, addr = next, addr != end);
@ -1092,7 +1092,7 @@ static void stage2_wp_range(struct kvm *kvm, phys_addr_t addr, phys_addr_t end)
pgd_t *pgd;
phys_addr_t next;
pgd = kvm->arch.pgd + kvm_pgd_index(addr);
pgd = kvm->arch.pgd + stage2_pgd_index(addr);
do {
/*
* Release kvm_mmu_lock periodically if the memory region is
@ -1104,8 +1104,8 @@ static void stage2_wp_range(struct kvm *kvm, phys_addr_t addr, phys_addr_t end)
if (need_resched() || spin_needbreak(&kvm->mmu_lock))
cond_resched_lock(&kvm->mmu_lock);
next = kvm_pgd_addr_end(addr, end);
if (pgd_present(*pgd))
next = stage2_pgd_addr_end(addr, end);
if (stage2_pgd_present(*pgd))
stage2_wp_puds(pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}