Re: [PATCH v12 04/20] KVM: pfncache: add a mark-dirty helper

From: Paul Durrant
Date: Wed Feb 07 2024 - 03:47:52 EST


On 07/02/2024 03:20, Sean Christopherson wrote:
On Mon, Jan 15, 2024, Paul Durrant wrote:
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 7e7fd25b09b3..f3bb9e0a81fe 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1399,6 +1399,17 @@ int kvm_gpc_refresh(struct gfn_to_pfn_cache *gpc, unsigned long len);
*/
void kvm_gpc_deactivate(struct gfn_to_pfn_cache *gpc);
+/**
+ * kvm_gpc_mark_dirty - mark a cached page as dirty.
+ *
+ * @gpc: struct gfn_to_pfn_cache object.
+ */
+static inline void kvm_gpc_mark_dirty(struct gfn_to_pfn_cache *gpc)

Any objection to kvm_gpc_mark_dirty_in_slot()? I want to make it clear this only
marks the gfn dirty in the memslot, i.e. that it doesn't mark the underlying page
as dirty.

Ok, that sounds fair.

Paul