From 756e1fc16505c31c9f86b602fcb8e2bc55c4b7e5 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Thu, 4 Nov 2021 16:41:06 +0000 Subject: 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 Signed-off-by: Anup Patel --- arch/riscv/kvm/mmu.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/riscv/kvm/mmu.c') 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, -- cgit v1.2.3