From: Julien Grall <julien@xen.org>
To: "Roger Pau Monné" <roger.pau@citrix.com>,
"Rahul Singh" <rahul.singh@arm.com>
Cc: xen-devel@lists.xenproject.org, bertrand.marquis@arm.com,
Jan Beulich <jbeulich@suse.com>, Paul Durrant <paul@xen.org>,
Andrew Cooper <andrew.cooper3@citrix.com>,
George Dunlap <george.dunlap@citrix.com>,
Ian Jackson <iwj@xenproject.org>,
Stefano Stabellini <sstabellini@kernel.org>, Wei Liu <wl@xen.org>
Subject: Re: [PATCH v3 3/3] xen/pci: Refactor MSI code that implements MSI functionality within XEN
Date: Wed, 28 Apr 2021 15:26:04 +0100 [thread overview]
Message-ID: <a4ff0fba-2d33-64ff-2fbe-ba4f24cfc602@xen.org> (raw)
In-Reply-To: <YIlBnQO+iuFFx2XO@Air-de-Roger>
On 28/04/2021 12:06, Roger Pau Monné wrote:
> On Mon, Apr 26, 2021 at 05:21:27PM +0100, Rahul Singh wrote:
>> MSI code that implements MSI functionality to support MSI within XEN is
>> not usable on ARM. Move the code under CONFIG_PCI_MSI_INTERCEPT flag to
>> gate the code for ARM.
>>
>> Currently, we have no idea how MSI functionality will be supported for
>> other architecture therefore we have decided to move the code under
>> CONFIG_PCI_MSI_INTERCEPT. We know this is not the right flag to gate the
>> code but to avoid an extra flag we decided to use this.
>>
>> No functional change intended.
>>
>> Signed-off-by: Rahul Singh <rahul.singh@arm.com>
>
> I think this is fine, as we don't really want to add another Kconfig
> option (ie: CONFIG_PCI_MSI) for just the non explicitly intercept MSI
> code.
+1 This is code and therefore can be revisited once we have more data
(e.g. a second arch that will re-use it).
>
> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Acked-by: Julien Grall <jgrall@amazon.com>
Cheers,
--
Julien Grall
next prev parent reply other threads:[~2021-04-28 14:26 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-26 16:21 [PATCH v3 0/3] xen/pci: Make PCI passthrough code non-x86 specific Rahul Singh
2021-04-26 16:21 ` [PATCH v3 1/3] xen/iommu: Move iommu_update_ire_from_msi(..) to xen/iommu.h Rahul Singh
2021-04-27 15:58 ` Jan Beulich
2021-04-26 16:21 ` [PATCH v3 2/3] xen/pci: Refactor PCI MSI intercept related code Rahul Singh
2021-04-28 10:42 ` Roger Pau Monné
2021-04-28 13:57 ` Jan Beulich
2021-04-29 8:27 ` Rahul Singh
2021-04-29 8:23 ` Rahul Singh
2021-04-28 14:06 ` Jan Beulich
2021-04-29 11:31 ` Rahul Singh
2021-04-29 11:47 ` Jan Beulich
2021-04-26 16:21 ` [PATCH v3 3/3] xen/pci: Refactor MSI code that implements MSI functionality within XEN Rahul Singh
2021-04-28 11:06 ` Roger Pau Monné
2021-04-28 14:11 ` Jan Beulich
2021-04-28 14:26 ` Julien Grall [this message]
2021-04-29 11:59 ` Rahul Singh
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=a4ff0fba-2d33-64ff-2fbe-ba4f24cfc602@xen.org \
--to=julien@xen.org \
--cc=andrew.cooper3@citrix.com \
--cc=bertrand.marquis@arm.com \
--cc=george.dunlap@citrix.com \
--cc=iwj@xenproject.org \
--cc=jbeulich@suse.com \
--cc=paul@xen.org \
--cc=rahul.singh@arm.com \
--cc=roger.pau@citrix.com \
--cc=sstabellini@kernel.org \
--cc=wl@xen.org \
--cc=xen-devel@lists.xenproject.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;
as well as URLs for NNTP newsgroup(s).