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Message-Id: <1279371808-24804-3-git-send-email-brgerst@gmail.com> Date: Sat, 17 Jul 2010 09:03:28 -0400 From: Brian Gerst <brgerst@...il.com> To: hpa@...or.com Cc: x86@...nel.org, linux-kernel@...r.kernel.org Subject: [PATCH 3/3] x86-64: Simplify loading initial_gs Load initial_gs as two 32-bit values instead of splitting a 64-bit value. Signed-off-by: Brian Gerst <brgerst@...il.com> --- arch/x86/kernel/head_64.S | 5 ++--- 1 files changed, 2 insertions(+), 3 deletions(-) diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S index 3d1e6f1..239046b 100644 --- a/arch/x86/kernel/head_64.S +++ b/arch/x86/kernel/head_64.S @@ -234,9 +234,8 @@ ENTRY(secondary_startup_64) * init data section till per cpu areas are set up. */ movl $MSR_GS_BASE,%ecx - movq initial_gs(%rip),%rax - movq %rax,%rdx - shrq $32,%rdx + movl initial_gs(%rip),%eax + movl initial_gs+4(%rip),%edx wrmsr /* esi is pointer to real mode structure with interesting info. -- 1.7.1.1 -- 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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