Patchwork [22/27] Add fields to PACA

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Submitter Alexander Graf
Date Oct. 30, 2009, 3:47 p.m.
Message ID <1256917647-6200-23-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/37328/
State Accepted, archived
Commit 4b7ae55df3621dd9eef56a6fde953ec9c73ac596
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Alexander Graf - Oct. 30, 2009, 3:47 p.m.
For KVM we need to store some information in the PACA, so we
need to extend it.

This patch adds KVM SLB shadow related entries to the PACA and
a field that indicates if we're inside a guest.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/paca.h |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

Patch

diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index 7d8514c..5e9b4ef 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -129,6 +129,15 @@  struct paca_struct {
 	u64 system_time;		/* accumulated system TB ticks */
 	u64 startpurr;			/* PURR/TB value snapshot */
 	u64 startspurr;			/* SPURR value snapshot */
+
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+	struct  {
+		u64     esid;
+		u64     vsid;
+	} kvm_slb[64];			/* guest SLB */
+	u8 kvm_slb_max;			/* highest used guest slb entry */
+	u8 kvm_in_guest;		/* are we inside the guest? */
+#endif
 };
 
 extern struct paca_struct paca[];