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Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check fixup tables

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On Thu, Dec 10, 2015 at 1:58 PM, Tony Luck <tony.luck@intel.com> wrote:
> Copy the existing page fault fixup mechanisms to create a new table
> to be used when fixing machine checks. Note:
> 1) At this time we only provide a macro to annotate assembly code
> 2) We assume all fixups will in code builtin to the kernel.
> 3) Only for x86_64
> 4) New code under CONFIG_MCE_KERNEL_RECOVERY
>
> Signed-off-by: Tony Luck <tony.luck@intel.com>
> ---

> +#ifdef CONFIG_MCE_KERNEL_RECOVERY
> +int fixup_mcexception(struct pt_regs *regs, u64 addr)
> +{
> +       const struct exception_table_entry *fixup;
> +       unsigned long new_ip;
> +
> +       fixup = search_mcexception_tables(regs->ip);
> +       if (fixup) {
> +               new_ip = ex_fixup_addr(fixup);
> +
> +               regs->ip = new_ip;
> +               regs->ax = BIT(63) | addr;

Can this be an actual #define?

--Andy
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[PATCHV2 1/3] x86, ras: Add new infrastructure for machine check fixup tables Tony Luck <tony.luck@intel.com> - 2015-12-11 20:40 +0100
  Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check  fixup tables Andy Lutomirski <luto@amacapital.net> - 2015-12-11 21:10 +0100
    RE: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine  check fixup tables "Luck, Tony" <tony.luck@intel.com> - 2015-12-11 22:10 +0100
  Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check  fixup tables Borislav Petkov <bp@alien8.de> - 2015-12-12 11:20 +0100
    Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check  fixup tables Ross Zwisler <zwisler@gmail.com> - 2015-12-14 19:00 +0100
      Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check  fixup tables Borislav Petkov <bp@alien8.de> - 2015-12-14 23:30 +0100
    Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check  fixup tables "Luck, Tony" <tony.luck@intel.com> - 2015-12-15 02:10 +0100
      Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check  fixup tables Borislav Petkov <bp@alien8.de> - 2015-12-15 10:50 +0100
        Re: [PATCHV2 1/3] x86, ras: Add new infrastructure for machine check  fixup tables Borislav Petkov <bp@alien8.de> - 2015-12-15 11:50 +0100

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