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49f6cba617
If an EL0 instruction in the SYS class triggers an exception, do_sysintr looks for a sys64_hook matching the instruction, and if none is found, injects a SIGILL. This mirrors what we do for undefined instruction encodings in do_undefinstr, where we look for an undef_hook matching the instruction, and if none is found, inject a SIGILL. Over time, new SYS instruction encodings may be allocated. Prior to allocation, exceptions resulting from these would be handled by do_undefinstr, whereas after allocation these may be handled by do_sysintr. To ensure that we have consistent behaviour if and when this happens, it would be beneficial to have do_sysinstr fall back to do_undefinstr. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Suzuki Poulose <suzuki.poulose@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> |
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| boot | ||
| configs | ||
| crypto | ||
| include | ||
| kernel | ||
| kvm | ||
| lib | ||
| mm | ||
| net | ||
| xen | ||
| Kconfig | ||
| Kconfig.debug | ||
| Kconfig.platforms | ||
| Makefile | ||