Patchwork [PULL,32/51] kvm: powerpc: e500: mark page accessed when mapping a guest page

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Submitter Alexander Graf
Date Oct. 31, 2013, 9:18 p.m.
Message ID <1383254316-11243-33-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/287634/
State New
Headers show

Comments

Alexander Graf - Oct. 31, 2013, 9:18 p.m.
From: Bharat Bhushan <r65777@freescale.com>

Mark the guest page as accessed so that there is likely
less chances of this page getting swap-out.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/e500_mmu_host.c | 3 +++
 1 file changed, 3 insertions(+)

Patch

diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index 1c6a9d72..8f0d532 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -253,6 +253,9 @@  static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref,
 	ref->pfn = pfn;
 	ref->flags |= E500_TLB_VALID;
 
+	/* Mark the page accessed */
+	kvm_set_pfn_accessed(pfn);
+
 	if (tlbe_is_writable(gtlbe))
 		kvm_set_pfn_dirty(pfn);
 }