Messages in this thread Patch in this message | | | From | Glauber de Oliveira Costa <> | Subject | [PATCH 08/15] add macro for privileged x86_64 operation | Date | Thu, 20 Dec 2007 18:04:03 -0200 |
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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 <gcosta@redhat.com> --- include/asm-x86/paravirt.h | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-)
Index: linux-2.6-x86/include/asm-x86/paravirt.h =================================================================== --- linux-2.6-x86.orig/include/asm-x86/paravirt.h 2007-12-20 19:07:28.000000000 -0800 +++ linux-2.6-x86/include/asm-x86/paravirt.h 2007-12-20 19:07:29.000000000 -0800 @@ -1227,6 +1227,12 @@ 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__ */
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