[Xen-changelog] [xen-unstable] x86 xsave: Enable xsave_feature[62] (AMD Lightweight Profiling)

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir@xxxxxxx>
# Date 1293179902 0
# Node ID 26e7e6c6ff7f9775fb77f58ddc0454ef08a1a908
# Parent  a71729704d4b53d6802dc7582328ca8ebbc5a855
x86 xsave: Enable xsave_feature[62] (AMD Lightweight Profiling)

The spec of LWP is available at
http://developer.amd.com/cpu/lwp/Pages/default.aspx.

Signed-off-by: Wei Huang <wei.huang2@xxxxxxx>
---
 xen/include/asm-x86/i387.h |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff -r a71729704d4b -r 26e7e6c6ff7f xen/include/asm-x86/i387.h
--- a/xen/include/asm-x86/i387.h        Fri Dec 24 08:37:34 2010 +0000
+++ b/xen/include/asm-x86/i387.h        Fri Dec 24 08:38:22 2010 +0000
@@ -22,11 +22,12 @@ int xsave_alloc_save_area(struct vcpu *v
 int xsave_alloc_save_area(struct vcpu *v);
 void xsave_free_save_area(struct vcpu *v);
 
-#define XSTATE_FP       (1 << 0)
-#define XSTATE_SSE      (1 << 1)
-#define XSTATE_YMM      (1 << 2)
+#define XSTATE_FP       (1ULL << 0)
+#define XSTATE_SSE      (1ULL << 1)
+#define XSTATE_YMM      (1ULL << 2)
+#define XSTATE_LWP      (1ULL << 62) /* AMD lightweight profiling */
 #define XSTATE_FP_SSE   (XSTATE_FP | XSTATE_SSE)
-#define XCNTXT_MASK     (XSTATE_FP | XSTATE_SSE | XSTATE_YMM)
+#define XCNTXT_MASK     (XSTATE_FP | XSTATE_SSE | XSTATE_YMM | XSTATE_LWP)
 #define XSTATE_YMM_OFFSET  (512 + 64)
 #define XSTATE_YMM_SIZE    256
 #define XSAVEOPT        (1 << 0)

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