From: Sean Christopherson Date: Thu, 4 Nov 2021 16:41:06 +0000 (+0000) Subject: KVM: RISC-V: Unmap stage2 mapping when deleting/moving a memslot X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=756e1fc16505c31c9f86b602fcb8e2bc55c4b7e5;p=linux.git 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 --- diff --git a/arch/riscv/kvm/mmu.c b/arch/riscv/kvm/mmu.c index d81bae8eb55ea..fc058ff5f4b6f 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,