diff options
Diffstat (limited to 'arch/arm64/kernel/entry.S')
| -rw-r--r-- | arch/arm64/kernel/entry.S | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index e6681c26d489..bd30119fd0c3 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -89,6 +89,17 @@ ldp x21, x22, [sp, #S_PC] // load ELR, SPSR .if \el == 0 ldr x23, [sp, #S_SP] // load return stack pointer +#ifdef CONFIG_ARM64_ERRATUM_845719 + tbz x22, #4, 1f +#ifdef CONFIG_PID_IN_CONTEXTIDR + mrs x29, contextidr_el1 + msr contextidr_el1, x29 +1: +#else + msr contextidr_el1, xzr +1: +#endif +#endif .endif .if \ret ldr x1, [sp, #S_X1] // preserve x0 (syscall return) |