Re: [PATCH v2 3/4] x86/paravirt: switch mixed paravirt/alternative calls to alternative_2

[Peter Zijlstra]

On Mon, Oct 16, 2023 at 02:39:32PM +0200, Juergen Gross wrote:
> Instead of stacking alternative and paravirt patching, use the new
> ALT_FLAG_CALL flag to switch those mixed calls to pure alternative
> handling.
> 
> This eliminates the need to be careful regarding the sequence of
> alternative and paravirt patching.
> 
> For call depth tracking callthunks_setup() needs to be adapted to patch
> calls at alternative patching sites instead of paravirt calls.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

I cannot help but feel this would've been better as two patches, one
introducing ALT_NOT_XEN and then a second with the rest.

Regardless,

Acked-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>