Re: [PATCH v5 11/12] x86/paravirt: switch functions with custom code to ALTERNATIVE

On 08.03.21 19:30, Borislav Petkov wrote: On Mon, Mar 08, 2021 at 01:28:43PM +0100, Juergen Gross wrote: diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 36cd71fa097f..04b3067f31b5 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravir

Re: [PATCH v5 11/12] x86/paravirt: switch functions with custom code to ALTERNATIVE

On Mon, Mar 08, 2021 at 01:28:43PM +0100, Juergen Gross wrote: > diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h > index 36cd71fa097f..04b3067f31b5 100644 > --- a/arch/x86/include/asm/paravirt.h > +++ b/arch/x86/include/asm/paravirt.h > @@ -137,7 +137,8 @@ static inli

[PATCH v5 11/12] x86/paravirt: switch functions with custom code to ALTERNATIVE

Instead of using paravirt patching for custom code sequences use ALTERNATIVE for the functions with custom code replacements. Instead of patching an ud2 instruction for unpopulated vector entries into the caller site, use a simple function just calling BUG() as a replacement. Simplify the registe