diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 33a1cbe98e362b73093e4f0664ac3428a55c0743..ad5432e735386495e0957795ddc8e8eb778934ca 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -72,16 +72,20 @@ .align 7 .Lventry_start\@: #ifdef CONFIG_UNMAP_KERNEL_AT_EL0 -alternative_if ARM64_UNMAP_KERNEL_AT_EL0 .if \el == 0 + /* + * This must be the first instruction of the EL0 vector entries. It is + * skipped by the trampoline vectors, to trigger the cleanup. + */ + b .Lskip_tramp_vectors_cleanup\@ .if \regsize == 64 mrs x30, tpidrro_el0 msr tpidrro_el0, xzr .else mov x30, xzr .endif +.Lskip_tramp_vectors_cleanup\@: .endif -alternative_else_nop_endif #endif sub sp, sp, #S_FRAME_SIZE @@ -1083,7 +1087,7 @@ alternative_insn isb, nop, ARM64_WORKAROUND_QCOM_FALKOR_E1003 #endif prfm plil1strm, [x30, #(1b - tramp_vectors)] msr vbar_el1, x30 - add x30, x30, #(1b - tramp_vectors) + add x30, x30, #(1b - tramp_vectors + 4) isb ret .org 1b + 128 // Did we overflow the ventry slot?