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[RFC,08/12] KVM: arm64: Add kvm_uninit_stage2_mmu()

Message ID 20221112081714.2169495-9-ricarkol@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: arm64: Eager huge-page splitting for dirty-logging | expand

Commit Message

Ricardo Koller Nov. 12, 2022, 8:17 a.m. UTC 
Add kvm_uninit_stage2_mmu() and move kvm_free_stage2_pgd()
into it. A future commit will add some more things to do
inside of kvm_uninit_stage2_mmu().

No functional change intended.

Signed-off-by: Ricardo Koller <ricarkol@google.com>
---
 arch/arm64/include/asm/kvm_mmu.h | 1 +
 arch/arm64/kvm/mmu.c             | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)
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Patch

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index e4a7e6369499..058f3ae5bc26 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -167,6 +167,7 @@  void free_hyp_pgds(void);
 
 void stage2_unmap_vm(struct kvm *kvm);
 int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu, unsigned long type);
+void kvm_uninit_stage2_mmu(struct kvm *kvm);
 void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu);
 int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
 			  phys_addr_t pa, unsigned long size, bool writable);
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 6599a45eebf5..94865c5ce181 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -766,6 +766,11 @@  int kvm_init_stage2_mmu(struct kvm *kvm, struct kvm_s2_mmu *mmu, unsigned long t
 	return err;
 }
 
+void kvm_uninit_stage2_mmu(struct kvm *kvm)
+{
+	kvm_free_stage2_pgd(&kvm->arch.mmu);
+}
+
 static void stage2_unmap_memslot(struct kvm *kvm,
 				 struct kvm_memory_slot *memslot)
 {
@@ -1869,7 +1874,7 @@  void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen)
 
 void kvm_arch_flush_shadow_all(struct kvm *kvm)
 {
-	kvm_free_stage2_pgd(&kvm->arch.mmu);
+	kvm_uninit_stage2_mmu(kvm);
 }
 
 void kvm_arch_flush_shadow_memslot(struct kvm *kvm,