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Diffstat (limited to 'arch/arm/kvm/mmu.c')
-rw-r--r--arch/arm/kvm/mmu.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 580906989db1..7789857d1470 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -667,14 +667,16 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
gfn = (fault_ipa & PMD_MASK) >> PAGE_SHIFT;
} else {
/*
- * Pages belonging to VMAs not aligned to the PMD mapping
- * granularity cannot be mapped using block descriptors even
- * if the pages belong to a THP for the process, because the
- * stage-2 block descriptor will cover more than a single THP
- * and we loose atomicity for unmapping, updates, and splits
- * of the THP or other pages in the stage-2 block range.
+ * Pages belonging to memslots that don't have the same
+ * alignment for userspace and IPA cannot be mapped using
+ * block descriptors even if the pages belong to a THP for
+ * the process, because the stage-2 block descriptor will
+ * cover more than a single THP and we loose atomicity for
+ * unmapping, updates, and splits of the THP or other pages
+ * in the stage-2 block range.
*/
- if (vma->vm_start & ~PMD_MASK)
+ if ((memslot->userspace_addr & ~PMD_MASK) !=
+ ((memslot->base_gfn << PAGE_SHIFT) & ~PMD_MASK))
force_pte = true;
}
up_read(&current->mm->mmap_sem);
@@ -916,9 +918,9 @@ int kvm_mmu_init(void)
{
int err;
- hyp_idmap_start = virt_to_phys(__hyp_idmap_text_start);
- hyp_idmap_end = virt_to_phys(__hyp_idmap_text_end);
- hyp_idmap_vector = virt_to_phys(__kvm_hyp_init);
+ hyp_idmap_start = kvm_virt_to_phys(__hyp_idmap_text_start);
+ hyp_idmap_end = kvm_virt_to_phys(__hyp_idmap_text_end);
+ hyp_idmap_vector = kvm_virt_to_phys(__kvm_hyp_init);
if ((hyp_idmap_start ^ hyp_idmap_end) & PAGE_MASK) {
/*
@@ -945,7 +947,7 @@ int kvm_mmu_init(void)
*/
kvm_flush_dcache_to_poc(init_bounce_page, len);
- phys_base = virt_to_phys(init_bounce_page);
+ phys_base = kvm_virt_to_phys(init_bounce_page);
hyp_idmap_vector += phys_base - hyp_idmap_start;
hyp_idmap_start = phys_base;
hyp_idmap_end = phys_base + len;