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| author | Will Deacon <will.deacon@arm.com> | 2018-08-07 13:43:06 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2018-09-14 17:46:17 +0100 |
| commit | 0bf0f444b2c49241b2b39aa3cf210d7c95ef6c34 (patch) | |
| tree | 19c947d9efc758b44a4e23cf7b6984669a761324 /arch/arm64/kernel/entry.S | |
| parent | 2d1b2a91d56b19636b740ea70c8399d1df249f20 (diff) | |
| download | talos-op-linux-0bf0f444b2c49241b2b39aa3cf210d7c95ef6c34.tar.gz talos-op-linux-0bf0f444b2c49241b2b39aa3cf210d7c95ef6c34.zip | |
arm64: entry: Allow handling of undefined instructions from EL1
Rather than panic() when taking an undefined instruction exception from
EL1, allow a hook to be registered in case we want to emulate the
instruction, like we will for the SSBS PSTATE manipulation instructions.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/entry.S')
| -rw-r--r-- | arch/arm64/kernel/entry.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 09dbea221a27..8556876c9109 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -589,7 +589,7 @@ el1_undef: inherit_daif pstate=x23, tmp=x2 mov x0, sp bl do_undefinstr - ASM_BUG() + kernel_exit 1 el1_dbg: /* * Debug exception handling |
