Messages in this thread | | | From | "Verdun, Jean-Marie" <> | Subject | Re: [PATCH v1] ARM: A9: Add ARM ERRATA 764319 workaround | Date | Tue, 10 May 2022 11:53:57 +0000 |
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Hi Arnd,
> Hi Nick,
> This seems a bit more complex than necessary. Can't you just use a custom > inline asm with an ex_table entry to catch the fault? Have a look at > __get_user_asm() for an example. > > Arnd
We got inspired from debug_reg_hook within the same source file ( ./arch/arm/kernel/hw_breakpoint.c ). We chose that path to keep coherency within the source code. We can implement the same fix by using an ex_table entry, but this will create two different ways at catching unknown instruction within the same source file. Will that be ok ?
vejmarie
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