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Date: Mon, 26 May 2014 10:01:17 -0700 From: "Fenghua Yu" <fenghua.yu@...el.com> To: "H. Peter Anvin" <hpa@...ux.intel.com>, "Ingo Molnar" <mingo@...e.hu>, "Thomas Gleixner" <tglx@...utronix.de>, "Asit K Mallick" <asit.k.mallick@...el.com> Cc: "linux-kernel" <linux-kernel@...r.kernel.org>, "x86" <x86@...nel.org>, "Fenghua Yu" <fenghua.yu@...el.com> Subject: [PATCH 10/15] x86/xsaves: Clear reserved bits in xsave header From: Fenghua Yu <fenghua.yu@...el.com> The reserved bits (128~511) in the xsave header must be zero. Clear the bits here. Signed-off-by: Fenghua Yu <fenghua.yu@...el.com> --- arch/x86/kernel/i387.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c index d5dd808..a9a4229 100644 --- a/arch/x86/kernel/i387.c +++ b/arch/x86/kernel/i387.c @@ -375,7 +375,7 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset, /* * These bits must be zero. */ - xsave_hdr->reserved1[0] = xsave_hdr->reserved1[1] = 0; + memset(xsave_hdr->reserved, 0, 48); return ret; } -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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