diff options
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kernel/entry_64.S | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S index 7cc2de79614..6aa6932e21b 100644 --- a/arch/x86/kernel/entry_64.S +++ b/arch/x86/kernel/entry_64.S @@ -1365,10 +1365,8 @@ END(do_hypervisor_callback) # with its current contents: any discrepancy means we in category 1. */ ENTRY(xen_failsafe_callback) -#if 1 - ud2a -#else - _frame (RIP-0x30) + framesz = (RIP-0x30) /* workaround buggy gas */ + _frame framesz CFI_REL_OFFSET rcx, 0 CFI_REL_OFFSET r11, 8 movw %ds,%cx @@ -1391,8 +1389,13 @@ ENTRY(xen_failsafe_callback) CFI_RESTORE r11 addq $0x30,%rsp CFI_ADJUST_CFA_OFFSET -0x30 - movq $11,%rdi /* SIGSEGV */ - jmp do_exit + pushq $0 + CFI_ADJUST_CFA_OFFSET 8 + pushq %r11 + CFI_ADJUST_CFA_OFFSET 8 + pushq %rcx + CFI_ADJUST_CFA_OFFSET 8 + jmp general_protection CFI_RESTORE_STATE 1: /* Segment mismatch => Category 1 (Bad segment). Retry the IRET. */ movq (%rsp),%rcx @@ -1406,7 +1409,6 @@ ENTRY(xen_failsafe_callback) SAVE_ALL jmp error_exit CFI_ENDPROC -#endif END(xen_failsafe_callback) #endif /* CONFIG_XEN */ |