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| author | Sean Christopherson <seanjc@google.com> | 2021-11-04 17:41:06 +0100 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2021-11-22 06:06:16 +0100 |
| commit | 756e1fc16505c31c9f86b602fcb8e2bc55c4b7e5 (patch) | |
| tree | 56da139889d80021add9029e12303aecfc773e83 /arch | |
| parent | Linux 5.16-rc2 (diff) | |
| download | linux-756e1fc16505c31c9f86b602fcb8e2bc55c4b7e5.tar.xz linux-756e1fc16505c31c9f86b602fcb8e2bc55c4b7e5.zip | |
KVM: RISC-V: Unmap stage2 mapping when deleting/moving a memslot
Unmap stage2 page tables when a memslot is being deleted or moved. It's
the architectures' responsibility to ensure existing mappings are removed
when kvm_arch_flush_shadow_memslot() returns.
Fixes: 9d05c1fee837 ("RISC-V: KVM: Implement stage2 page table programming")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/kvm/mmu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c index d81bae8eb55e..fc058ff5f4b6 100644 --- a/arch/riscv/kvm/mmu.c +++ b/arch/riscv/kvm/mmu.c @@ -453,6 +453,12 @@ void kvm_arch_flush_shadow_all(struct kvm *kvm) void kvm_arch_flush_shadow_memslot(struct kvm *kvm, struct kvm_memory_slot *slot) { + gpa_t gpa = slot->base_gfn << PAGE_SHIFT; + phys_addr_t size = slot->npages << PAGE_SHIFT; + + spin_lock(&kvm->mmu_lock); + stage2_unmap_range(kvm, gpa, size, false); + spin_unlock(&kvm->mmu_lock); } void kvm_arch_commit_memory_region(struct kvm *kvm, |