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x86_64: Use __BOOT_DS instead_of __KERNEL_DS for safety
authorLans Zhang <lans.zhang2008@gmail.com>
Fri, 1 Mar 2013 01:20:39 +0000 (09:20 +0800)
committerH. Peter Anvin <hpa@linux.intel.com>
Fri, 1 Mar 2013 18:18:33 +0000 (10:18 -0800)
commit2dead15fb8f6522b96c913603b5ad0b5c7d01f49
treeeaefab90bf50b16bf8c6a62d7168d48c7a9a3130tree | snapshot
parentde1a2262b006220dae2561a299a6ea128c46f4fecommit | diff
x86_64: Use __BOOT_DS instead_of __KERNEL_DS for safety

In startup_32, the running code still uses the initial GDT
located in setup. Thus, __BOOT_DS is preferred. Currently
__KERNEL_DS is lucky to equal to __BOOT_DS, but this is
not always a safe way.

Signed-off-by: Lans Zhang <lans.zhang2008@gmail.com>
Link: http://lkml.kernel.org/r/51300267.6000008@gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
arch/x86/boot/compressed/head_64.S diff | blob | history
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