Re: [PATCH 30/62] x86/head/64: Move early exception dispatch to C code

From: Joerg Roedel
Date: Wed Feb 12 2020 - 07:39:15 EST


On Tue, Feb 11, 2020 at 02:44:45PM -0800, Andy Lutomirski wrote:
> How about int (or bool) handled; Or just if (!early_make_pgtable)
> return; This would also be nicer if you inverted the return value so
> that true means "I handled it".

Okay, makes sense. Changed the return value of early_make_pgtable() to bool and
this function to:

void __init early_exception(struct pt_regs *regs, int trapnr)
{
if (trapnr == X86_TRAP_PF &&
early_make_pgtable(native_read_cr2()))
return;

early_fixup_exception(regs, trapnr);
}

Regards,

Joerg