Commit 4a8c4c4e authored by Glauber de Oliveira Costa's avatar Glauber de Oliveira Costa Committed by Ingo Molnar

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: default avatarGlauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 2e47d3e6
......@@ -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__ */
......
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