Re: [PATCH] x86/irq: Preserve vector in orig_ax for APIC code

[Thomas Gleixner]

On Wed, Aug 26 2020 at 18:33, Alexander Graf wrote:
> On 26.08.20 16:27, Thomas Gleixner wrote:
>> The below nasty hack cures it, but I hate it with a passion. I'll look
>> deeper for a sane variant.
>
> An alternative (that doesn't make the code easier to read, but would fix 
> the issue at hand) would be touse a pushq imm16 with vector | 0x8000 
> instead to always make the value negative, no?

Which makes each entry larger than 8 byte which was frowned upon before.

And it does not solve the issue that we abuse orig_ax which Andy
mentioned.

Thanks,

        tglx