diff options
Diffstat (limited to 'arch/arm64/kernel/entry.S')
| -rw-r--r-- | arch/arm64/kernel/entry.S | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index da99a728a5f9..191e3136fa6e 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -121,11 +121,9 @@ * feature as all TTBR0_EL1 accesses are disabled, not just those to * user mappings. */ -alternative_if_not ARM64_HAS_PAN - nop -alternative_else +alternative_if ARM64_HAS_PAN b 1f // skip TTBR0 PAN -alternative_endif +alternative_else_nop_endif .if \el != 0 mrs x21, ttbr0_el1 @@ -135,7 +133,7 @@ alternative_endif and x23, x23, #~PSR_PAN_BIT // Clear the emulated PAN in the saved SPSR .endif - uaccess_ttbr0_disable x21 + __uaccess_ttbr0_disable x21 1: #endif @@ -184,17 +182,15 @@ alternative_endif * Restore access to TTBR0_EL1. If returning to EL0, no need for SPSR * PAN bit checking. */ -alternative_if_not ARM64_HAS_PAN - nop -alternative_else +alternative_if ARM64_HAS_PAN b 2f // skip TTBR0 PAN -alternative_endif +alternative_else_nop_endif .if \el != 0 - tbnz x22, #_PSR_PAN_BIT, 1f // Skip re-enabling TTBR0 access if previously disabled + tbnz x22, #22, 1f // Skip re-enabling TTBR0 access if the PSR_PAN_BIT is set .endif - uaccess_ttbr0_enable x0 + __uaccess_ttbr0_enable x0 .if \el == 0 /* @@ -687,7 +683,7 @@ el0_inv: mov x0, sp mov x1, #BAD_SYNC mov x2, x25 - bl bad_mode + bl bad_el0_sync b ret_to_user ENDPROC(el0_sync) |