Commit-ID: 21e726c4a3625a1038e97795b7aad97109ba7e19 Gitweb: http://git.kernel.org/tip/21e726c4a3625a1038e97795b7aad97109ba7e19 Author: Fenghua Yu <fenghua...@intel.com> AuthorDate: Thu, 29 May 2014 11:12:39 -0700 Committer: H. Peter Anvin <h...@linux.intel.com> CommitDate: Thu, 29 May 2014 14:33:00 -0700
x86/xsaves: Clear reserved bits in xsave header The reserved bits (128~511) in the xsave header must be zero according to X86 SDM. Clear the bits in this patch. Signed-off-by: Fenghua Yu <fenghua...@intel.com> Link: http://lkml.kernel.org/r/1401387164-43416-12-git-send-email-fenghua...@intel.com Signed-off-by: H. Peter Anvin <h...@linux.intel.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; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
