diff options
Diffstat (limited to 'arch/arm64/kernel/traps.c')
| -rw-r--r-- | arch/arm64/kernel/traps.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index a6dd3e90755c..901dfd9bf04c 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -18,6 +18,7 @@ #include <linux/module.h> #include <linux/kexec.h> #include <linux/delay.h> +#include <linux/efi.h> #include <linux/init.h> #include <linux/sched/signal.h> #include <linux/sched/debug.h> @@ -34,6 +35,7 @@ #include <asm/cpufeature.h> #include <asm/daifflags.h> #include <asm/debug-monitors.h> +#include <asm/efi.h> #include <asm/esr.h> #include <asm/exception.h> #include <asm/extable.h> @@ -491,6 +493,10 @@ void do_el0_bti(struct pt_regs *regs) void do_el1_bti(struct pt_regs *regs, unsigned long esr) { + if (efi_runtime_fixup_exception(regs, "BTI violation")) { + regs->pstate &= ~PSR_BTYPE_MASK; + return; + } die("Oops - BTI", regs, esr); } |