[v4,03/16] KVM: x86/mmu: add comment explaining arguments to kvm_zap_gfn_range

Commit Message

Maxim Levitsky Aug. 10, 2021, 8:52 p.m. UTC

This comment makes it clear that the range of gfns that this
function receives is non inclusive.

Signed-off-by: Maxim Levitsky <[e-mail]>
---
 arch/x86/kvm/mmu/mmu.c | 4 ++++
 1 file changed, 4 insertions(+)

Patch

diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 3080e25c8a3a..d4e22a9635a9 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -5647,6 +5647,10 @@  void kvm_mmu_uninit_vm(struct kvm *kvm)
 	kvm_mmu_uninit_tdp_mmu(kvm);
 }
 
+/*
+ * Invalidate (zap) SPTEs that cover GFNs from gfn_start and up to gfn_end
+ * (not including it)
+ */
 void kvm_zap_gfn_range(struct kvm *kvm, gfn_t gfn_start, gfn_t gfn_end)
 {
 	struct kvm_memslots *slots;