From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
To: Stefano Stabellini <sstabellini@kernel.org>
Cc: jgross@suse.com, xen-devel@lists.xenproject.org,
Stefano Stabellini <stefano.stabellini@xilinx.com>
Subject: Re: [PATCH v3] xen/arm: introduce XENFEAT_direct_mapped and XENFEAT_not_direct_mapped
Date: Fri, 19 Mar 2021 19:00:07 -0400 [thread overview]
Message-ID: <bbee061a-065c-ea5b-9792-977e3ad6c660@oracle.com> (raw)
In-Reply-To: <20210319200140.12512-1-sstabellini@kernel.org>
On 3/19/21 4:01 PM, Stefano Stabellini wrote:
> From: Stefano Stabellini <stefano.stabellini@xilinx.com>
>
> Newer Xen versions expose two Xen feature flags to tell us if the domain
> is directly mapped or not. Only when a domain is directly mapped it
> makes sense to enable swiotlb-xen on ARM.
>
> Introduce a function on ARM to check the new Xen feature flags and also
> to deal with the legacy case. Call the function xen_swiotlb_detect.
>
> Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
next prev parent reply other threads:[~2021-03-19 23:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-19 20:01 [PATCH v3] xen/arm: introduce XENFEAT_direct_mapped and XENFEAT_not_direct_mapped Stefano Stabellini
2021-03-19 23:00 ` Boris Ostrovsky [this message]
2021-04-23 9:36 ` Juergen Gross
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=bbee061a-065c-ea5b-9792-977e3ad6c660@oracle.com \
--to=boris.ostrovsky@oracle.com \
--cc=jgross@suse.com \
--cc=sstabellini@kernel.org \
--cc=stefano.stabellini@xilinx.com \
--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).