diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2021-06-07 10:46:11 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-06-07 11:35:55 +0100 |
| commit | 064dbfb4169141943ec7d9dbfd02974dd008f2ce (patch) | |
| tree | 2e67ec533160b8bc74d99ca82c0a11cd551be86b /arch/arm64/mm/fault.c | |
| parent | f8049488e7d37b0a0e438ee449e83b3e46958743 (diff) | |
arm64: entry: convert IRQ+FIQ handlers to C
For various reasons we'd like to convert the bulk of arm64's exception
triage logic to C. As a step towards that, this patch converts the EL1
and EL0 IRQ+FIQ triage logic to C.
Separate C functions are added for the native and compat cases so that
in subsequent patches we can handle native/compat differences in C.
Since the triage functions can now call arm64_apply_bp_hardening()
directly, the do_el0_irq_bp_hardening() wrapper function is removed.
Since the user_exit_irqoff macro is now unused, it is removed. The
user_enter_irqoff macro is still used by the ret_to_user code, and
cannot be removed at this time.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20210607094624.34689-8-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/mm/fault.c')
| -rw-r--r-- | arch/arm64/mm/fault.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 871c82ab0a30..3b4a4adfddfd 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -836,13 +836,6 @@ void do_mem_abort(unsigned long far, unsigned int esr, struct pt_regs *regs) } NOKPROBE_SYMBOL(do_mem_abort); -void do_el0_irq_bp_hardening(void) -{ - /* PC has already been checked in entry.S */ - arm64_apply_bp_hardening(); -} -NOKPROBE_SYMBOL(do_el0_irq_bp_hardening); - void do_sp_pc_abort(unsigned long addr, unsigned int esr, struct pt_regs *regs) { arm64_notify_die("SP/PC alignment exception", regs, SIGBUS, BUS_ADRALN, |