[PATCH] fix kvm-kmod FPU save API

[PATCH] fix kvm-kmod FPU save API

[Zachary Amsden]

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Ensure the save struct gets 16-byte alignment.

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>From e08c7f6ec354b9605f6dba9771eb76aadd5a71f8 Mon Sep 17 00:00:00 2001
From: Zachary Amsden <zamsden@redhat.com>
Date: Fri, 11 Jun 2010 14:43:21 -1000
Subject: [PATCH] Align FPU save struct to 16-bytes

Otherwise, we get a #GP

Signed-off-by: Zachary Amsden <zamsden@redhat.com>
---
 x86/external-module-compat.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/x86/external-module-compat.h b/x86/external-module-compat.h
index 708517b..d7b0538 100644
--- a/x86/external-module-compat.h
+++ b/x86/external-module-compat.h
@@ -835,7 +835,7 @@ struct kvm_i387_fxsave_struct {
 #else
 	u32	xmm_space[32];	/* 8*16 bytes for each XMM-reg = 128 bytes */
 #endif
-};
+} __aligned(16);
 
 union kvm_thread_xstate {
 	struct kvm_i387_fxsave_struct fxsave;
-- 
1.7.0.1

Re: [PATCH] fix kvm-kmod FPU save API

[Jan Kiszka]

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Zachary Amsden wrote:
> Ensure the save struct gets 16-byte alignment.
> 

Thanks, applied.

Jan


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