On Dec 18, 2008, at 8:34 PM, Liu Yu wrote:
KVM on E500 platform currently utilize TLB1 entries without
bothering host,
that is using unused TLB1 entries.
So, KVM needs to read tlbcam_index to know exactly
which TLB1 entry is unused by host.
Signed-off-by: Liu Yu <yu.liu@xxxxxxxxxxxxx>
---
[v2]
Remove num_tlbcam_entries declare and read from SPRN_TLB1CFG in KVM
instead.
arch/powerpc/include/asm/mmu-fsl-booke.h | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/mmu-fsl-booke.h b/arch/powerpc/
include/asm/mmu-fsl-booke.h
index 925d93c..c86af6c 100644
--- a/arch/powerpc/include/asm/mmu-fsl-booke.h
+++ b/arch/powerpc/include/asm/mmu-fsl-booke.h
@@ -73,6 +73,8 @@
#ifndef __ASSEMBLY__
+extern unsigned int tlbcam_index;
+
typedef struct {
unsigned long id;
unsigned long vdso_base;
--
1.5.4
Acked-by: Kumar Gala <galak@xxxxxxxxxxxxxxxxxxx>
(Hollis will you deal with sending this via the KVM tree?)
- k
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