diff mbox series

[RFC,v1,24/26] KVM: arm64: Add handlers for kvm_arch_*_set_memory_attributes()

Message ID 20240222161047.402609-25-tabba@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: Restricted mapping of guest_memfd at the host and pKVM/arm64 support | expand

Commit Message

Fuad Tabba Feb. 22, 2024, 4:10 p.m. UTC 
pKVM doesn't need to do anything specific, but the functions need
to be implemented since guestmem expects them.

Signed-off-by: Fuad Tabba <tabba@google.com>
---
 arch/arm64/kvm/mmu.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
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Patch

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 570b14da16b1..36de5748fb0a 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -2386,3 +2386,19 @@  void kvm_toggle_cache(struct kvm_vcpu *vcpu, bool was_enabled)
 
 	trace_kvm_toggle_cache(*vcpu_pc(vcpu), was_enabled, now_enabled);
 }
+
+#ifdef CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES
+
+bool kvm_arch_pre_set_memory_attributes(struct kvm *kvm,
+					struct kvm_gfn_range *range)
+{
+	return false;
+}
+
+bool kvm_arch_post_set_memory_attributes(struct kvm *kvm,
+					 struct kvm_gfn_range *range)
+{
+	return false;
+}
+
+#endif /* CONFIG_KVM_GENERIC_MEMORY_ATTRIBUTES */