diff options
Diffstat (limited to 'include/asm-x86/paravirt.h')
| -rw-r--r-- | include/asm-x86/paravirt.h | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 56389954d10..854c19364da 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -1159,8 +1159,6 @@ static inline unsigned long __raw_local_irq_save(void) #else /* __ASSEMBLY__ */ -#define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4) - #define _PVSITE(ptype, clobbers, ops, word, algn) \ 771:; \ ops; \ @@ -1175,8 +1173,14 @@ static inline unsigned long __raw_local_irq_save(void) #ifdef CONFIG_X86_64 +#define PV_SAVE_REGS pushq %rax; pushq %rdi; pushq %rcx; pushq %rdx +#define PV_RESTORE_REGS popq %rdx; popq %rcx; popq %rdi; popq %rax +#define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 8) #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .quad, 8) #else +#define PV_SAVE_REGS pushl %eax; pushl %edi; pushl %ecx; pushl %edx +#define PV_RESTORE_REGS popl %edx; popl %ecx; popl %edi; popl %eax +#define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4) #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4) #endif @@ -1186,25 +1190,27 @@ static inline unsigned long __raw_local_irq_save(void) #define DISABLE_INTERRUPTS(clobbers) \ PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), clobbers, \ - pushl %eax; pushl %ecx; pushl %edx; \ + PV_SAVE_REGS; \ call *%cs:pv_irq_ops+PV_IRQ_irq_disable; \ - popl %edx; popl %ecx; popl %eax) \ + PV_RESTORE_REGS;) \ #define ENABLE_INTERRUPTS(clobbers) \ PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_enable), clobbers, \ - pushl %eax; pushl %ecx; pushl %edx; \ + PV_SAVE_REGS; \ call *%cs:pv_irq_ops+PV_IRQ_irq_enable; \ - popl %edx; popl %ecx; popl %eax) + PV_RESTORE_REGS;) #define ENABLE_INTERRUPTS_SYSCALL_RET \ PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_syscall_ret),\ CLBR_NONE, \ jmp *%cs:pv_cpu_ops+PV_CPU_irq_enable_syscall_ret) +#ifdef CONFIG_X86_32 #define GET_CR0_INTO_EAX \ push %ecx; push %edx; \ call *pv_cpu_ops+PV_CPU_read_cr0; \ pop %edx; pop %ecx +#endif #endif /* __ASSEMBLY__ */ #endif /* CONFIG_PARAVIRT */ |