Re: [PATCH v7 06/12] KVM: arm64: Add kvm_uninit_stage2_mmu()

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On 4/9/23 2:29 PM, Ricardo Koller wrote:
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().

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


Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>

diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index 083cc47dca086..7d173da5bd51c 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -168,6 +168,7 @@ void __init 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 37d7d2aa472ab..a2800e5c42712 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -767,6 +767,11 @@ 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)
  {
@@ -1855,7 +1860,7 @@ 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,





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