From: Glauber de Oliveira Costa Date: Wed, 30 Jan 2008 12:32:07 +0000 (+0100) Subject: x86: add macro for privileged 64-bit operation X-Git-Tag: v2.6.25-rc1~1143^2~473 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4a8c4c4e10d1bc2c3bd80caabb6a76a66849f7e8;p=platform%2Fkernel%2Flinux-3.10.git x86: add macro for privileged 64-bit operation i386 has a macro GET_CR0_INTO_EAX, used in early trap handling code. x86_64 has similar needs, only it needs to put cr2 into rcx. We provide a macro for such task, in the same way Signed-off-by: Glauber de Oliveira Costa Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 0735a90..7d1c126 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1227,6 +1227,12 @@ static inline unsigned long __raw_local_irq_save(void) push %ecx; push %edx; \ call *pv_cpu_ops+PV_CPU_read_cr0; \ pop %edx; pop %ecx +#else +#define GET_CR2_INTO_RCX \ + call *pv_mmu_ops+PV_MMU_read_cr2; \ + movq %rax, %rcx; \ + xorq %rax, %rax; + #endif #endif /* __ASSEMBLY__ */