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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-14 10:08:57 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-14 10:08:57 +0200 |
| commit | 9ef8638bd8c7e06bee087a04af7950cbc6123828 (patch) | |
| tree | de145994dfe036dbd2d729c61e043f1a96cef25c /arch/arm64/kvm/mmu.c | |
| parent | 0de7511695680425aa1e6e1e1c7a7c24e6250491 (diff) | |
| parent | 856deb866d16e29bd65952e0289066f6078af773 (diff) | |
Merge 5.9-rc5 into driver-core-next
We need the driver core changes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/arm64/kvm/mmu.c')
| -rw-r--r-- | arch/arm64/kvm/mmu.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c index ba00bcc0c884..9a636b8064f1 100644 --- a/arch/arm64/kvm/mmu.c +++ b/arch/arm64/kvm/mmu.c @@ -1877,6 +1877,7 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, !fault_supports_stage2_huge_mapping(memslot, hva, vma_pagesize)) { force_pte = true; vma_pagesize = PAGE_SIZE; + vma_shift = PAGE_SHIFT; } /* @@ -1970,7 +1971,12 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa, (fault_status == FSC_PERM && stage2_is_exec(mmu, fault_ipa, vma_pagesize)); - if (vma_pagesize == PUD_SIZE) { + /* + * If PUD_SIZE == PMD_SIZE, there is no real PUD level, and + * all we have is a 2-level page table. Trying to map a PUD in + * this case would be fatally wrong. + */ + if (PUD_SIZE != PMD_SIZE && vma_pagesize == PUD_SIZE) { pud_t new_pud = kvm_pfn_pud(pfn, mem_type); new_pud = kvm_pud_mkhuge(new_pud); |