From: Ingo Molnar <mingo@kernel.org>
To: Juergen Gross <jgross@suse.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>,
Alexey Makhalov <amakhalov@vmware.com>,
Peter Zijlstra <peterz@infradead.org>,
x86@kernel.org, linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
VMware PV-Drivers Reviewers <pv-drivers@vmware.com>,
Ajay Kaher <akaher@vmware.com>, Ingo Molnar <mingo@redhat.com>,
Borislav Petkov <bp@alien8.de>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v2 3/4] x86/paravirt: switch mixed paravirt/alternative calls to alternative_2
Date: Wed, 18 Oct 2023 13:34:44 +0200 [thread overview]
Message-ID: <ZS/C1HS/EEXTtVji@gmail.com> (raw)
In-Reply-To: <4f5cc965-36da-43f0-aaaa-082a2235ec1e@suse.com>
* Juergen Gross <jgross@suse.com> wrote:
> On 16.10.23 16:29, Peter Zijlstra wrote:
> > 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@suse.com>
> >
> > 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.
>
> In case I need to respin I'll split it up.
Yeah, would be nice to split this patch into two, as Peter requested.
Thanks,
Ingo
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next prev parent reply other threads:[~2023-10-18 11:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-16 12:39 [PATCH v2 0/4] x86/paravirt: Get rid of paravirt patching Juergen Gross via Virtualization
2023-10-16 12:39 ` [PATCH v2 1/4] x86/paravirt: move some functions and defines to alternative Juergen Gross via Virtualization
2023-10-16 12:39 ` [PATCH v2 3/4] x86/paravirt: switch mixed paravirt/alternative calls to alternative_2 Juergen Gross via Virtualization
2023-10-16 14:29 ` Peter Zijlstra
2023-10-16 14:40 ` Juergen Gross via Virtualization
2023-10-18 11:34 ` Ingo Molnar [this message]
2023-10-18 15:02 ` Juergen Gross via Virtualization
2023-10-16 12:39 ` [PATCH v2 4/4] x86/paravirt: remove no longer needed paravirt patching code Juergen Gross via Virtualization
2023-10-16 14:30 ` Peter Zijlstra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZS/C1HS/EEXTtVji@gmail.com \
--to=mingo@kernel.org \
--cc=akaher@vmware.com \
--cc=amakhalov@vmware.com \
--cc=bp@alien8.de \
--cc=dave.hansen@linux.intel.com \
--cc=hpa@zytor.com \
--cc=jgross@suse.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=peterz@infradead.org \
--cc=pv-drivers@vmware.com \
--cc=tglx@linutronix.de \
--cc=virtualization@lists.linux-foundation.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox