diff options
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 29 |
1 files changed, 4 insertions, 25 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 4e0ff79ffee3..a0543db0bcae 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -119,29 +119,6 @@ _LPP_OFFSET = __LC_LPP .endm #if IS_ENABLED(CONFIG_KVM) - /* - * The OUTSIDE macro jumps to the provided label in case the value - * in the provided register is outside of the provided range. The - * macro is useful for checking whether a PSW stored in a register - * pair points inside or outside of a block of instructions. - * @reg: register to check - * @start: start of the range - * @end: end of the range - * @outside_label: jump here if @reg is outside of [@start..@end) - */ - .macro OUTSIDE reg,start,end,outside_label - lgr %r14,\reg - larl %r13,\start - slgr %r14,%r13 - clgfrl %r14,.Lrange_size\@ - jhe \outside_label - .section .rodata, "a" - .balign 4 -.Lrange_size\@: - .long \end - \start - .previous - .endm - .macro SIEEXIT lg %r9,__SF_SIE_CONTROL(%r15) # get control block pointer ni __SIE_PROG0C+3(%r9),0xfe # no longer in SIE @@ -236,7 +213,6 @@ SYM_FUNC_START(__sie64a) lg %r14,__SF_SIE_CONTROL(%r15) # get control block pointer ni __SIE_PROG0C+3(%r14),0xfe # no longer in SIE lctlg %c1,%c1,__LC_KERNEL_ASCE # load primary asce -.Lsie_done: ni __LC_CPU_FLAGS+7,255-_CIF_SIE # some program checks are suppressing. C code (e.g. do_protection_exception) # will rewind the PSW by the ILC, which is often 4 bytes in case of SIE. There @@ -525,7 +501,10 @@ SYM_CODE_START(mcck_int_handler) # and entering SIE (or leaving and clearing the flag). This # would cause machine checks targeted at the guest to be # handled by the host. - OUTSIDE %r9,.Lsie_entry,.Lsie_leave,4f + larl %r14,.Lsie_entry + clgrjl %r9,%r14, 4f + larl %r14,.Lsie_leave + clgrjhe %r9,%r14, 4f oi __LC_CPU_FLAGS+7, _CIF_MCCK_GUEST 4: BPENTER __SF_SIE_FLAGS(%r15),_TIF_ISOLATE_BP_GUEST SIEEXIT |