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| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2012-11-16 13:57:13 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-11-16 16:42:09 -0800 |
| commit | fc8d782677f163dee76427fdd8a92bebd2b50b23 (patch) | |
| tree | c3e228bd6a3c194cb28276bb834582a34a4ff371 /arch/x86/kernel/cpu/intel.c | |
| parent | 05a476b6e3795f205806662bf09ab95774266292 (diff) | |
| download | op-kernel-dev-fc8d782677f163dee76427fdd8a92bebd2b50b23.zip op-kernel-dev-fc8d782677f163dee76427fdd8a92bebd2b50b23.tar.gz | |
x86: Use __pa_symbol instead of __pa on C visible symbols
When I made an attempt at separating __pa_symbol and __pa I found that there
were a number of cases where __pa was used on an obvious symbol.
I also caught one non-obvious case as _brk_start and _brk_end are based on the
address of __brk_base which is a C visible symbol.
In mark_rodata_ro I was able to reduce the overhead of kernel symbol to
virtual memory translation by using a combination of __va(__pa_symbol())
instead of page_address(virt_to_page()).
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Link: http://lkml.kernel.org/r/20121116215640.8521.80483.stgit@ahduyck-cp1.jf.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/cpu/intel.c')
| -rw-r--r-- | arch/x86/kernel/cpu/intel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 198e019..2249e7e 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -168,7 +168,7 @@ int __cpuinit ppro_with_ram_bug(void) #ifdef CONFIG_X86_F00F_BUG static void __cpuinit trap_init_f00f_bug(void) { - __set_fixmap(FIX_F00F_IDT, __pa(&idt_table), PAGE_KERNEL_RO); + __set_fixmap(FIX_F00F_IDT, __pa_symbol(idt_table), PAGE_KERNEL_RO); /* * Update the IDT descriptor and reload the IDT so that |
