All of lore.kernel.org
 help / color / mirror / Atom feed
From: Julien Grall <julien.grall.oss@gmail.com>
To: Marc Zyngier <maz@kernel.org>
Cc: xen-devel <xen-devel@lists.xenproject.org>, nd <nd@arm.com>,
	Stefano Stabellini <sstabellini@kernel.org>,
	CodeWiz2280 <codewiz2280@gmail.com>,
	Bertrand Marquis <Bertrand.Marquis@arm.com>
Subject: Re: Keystone Issue
Date: Wed, 10 Jun 2020 22:46:35 +0100	[thread overview]
Message-ID: <CAJ=z9a1k606A+sA467eY8iPuHnptMUFzxEFithpe=JKHogjt0g@mail.gmail.com> (raw)
In-Reply-To: <6033f9cecbf10f50f4a713ce52105426@kernel.org>

Hi Marc,

On Tue, 9 Jun 2020 at 18:45, Marc Zyngier <maz@kernel.org> wrote:
> > I was wondering if you heard about any potential issue with guest EOI
> > not forwarded to the host. This is on TI Keystone (Cortex A-15).
>
> Not that I know of. A-15 definitely works (TC2, Tegra-K1, Calxeda Midway
> all run just fine with guest EOI), and GIC-400 is a pretty solid piece
> of kit (it is just sloooooow...).
>
> Thinking of it, you would see something like that if the GIC was seeing
> the writes coming from the guest as secure instead of NS (cue the early
> firmware on XGene that exposed the wrong side of GIC-400).

Ah, I remember that one.  We used to carry an hack in Xen [1] for
X-Gene. Thankfully they fixed the firmware!

If it is a similar issue, then the firmware path would definitely be
my preference.

Thank you for the input!

Cheers,

[1] http://xenbits.xen.org/gitweb/?p=xen.git;a=commit;h=50dcb3de603927db2fd87ba09e29c817415aaa44


  parent reply	other threads:[~2020-06-10 21:47 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-01 12:38 Keystone Issue CodeWiz2280
2020-06-01 13:29 ` Julien Grall
2020-06-01 15:21   ` CodeWiz2280
2020-06-01 17:38     ` CodeWiz2280
2020-06-03 11:32       ` Julien Grall
2020-06-03 17:13         ` CodeWiz2280
2020-06-03 18:09           ` Julien Grall
2020-06-03 18:37             ` CodeWiz2280
2020-06-04  8:02             ` Bertrand Marquis
2020-06-04  8:59               ` Julien Grall
2020-06-04  9:08                 ` Bertrand Marquis
2020-06-04 10:15                   ` Julien Grall
2020-06-04 12:07                     ` CodeWiz2280
2020-06-04 18:24                       ` Julien Grall
2020-06-05  2:29                         ` CodeWiz2280
2020-06-05  7:36                           ` Bertrand Marquis
2020-06-05 12:25                             ` CodeWiz2280
2020-06-05 12:30                               ` Julien Grall
2020-06-05 12:42                                 ` CodeWiz2280
2020-06-05 12:47                                   ` Bertrand Marquis
2020-06-05 15:05                                     ` CodeWiz2280
2020-06-05 19:12                                       ` CodeWiz2280
2020-06-08  8:40                                         ` Bertrand Marquis
2020-06-08 12:33                                           ` CodeWiz2280
2020-06-08 16:13                                             ` Stefano Stabellini
2020-06-09 14:33                                               ` CodeWiz2280
2020-06-09 15:28                                                 ` Bertrand Marquis
2020-06-09 15:47                                                   ` Julien Grall
2020-06-09 15:58                                                     ` CodeWiz2280
2020-06-09 17:05                                                       ` Bertrand Marquis
2020-06-09 17:03                                                     ` Bertrand Marquis
2020-06-09 17:32                                                       ` Julien Grall
2020-06-09 17:45                                                         ` Marc Zyngier
2020-06-09 20:07                                                           ` CodeWiz2280
2020-06-10  8:13                                                             ` Bertrand Marquis
2020-06-10  8:06                                                           ` Bertrand Marquis
2020-06-10  8:20                                                             ` Marc Zyngier
2020-06-10  8:39                                                               ` Bertrand Marquis
2020-06-10 12:39                                                                 ` CodeWiz2280
2020-06-10 12:53                                                                   ` Marc Zyngier
2020-06-10 12:58                                                                   ` Julien Grall
2020-06-10 21:46                                                           ` Julien Grall [this message]
2020-06-15 19:14                                                             ` CodeWiz2280
2020-06-15 21:32                                                               ` Stefano Stabellini
2020-06-16  7:56                                                                 ` Bertrand Marquis
2020-06-16  8:11                                                               ` Marc Zyngier
2020-06-16 18:13                                                                 ` CodeWiz2280
2020-06-16 18:23                                                                   ` Marc Zyngier
2020-06-17 14:45                                                                     ` CodeWiz2280
2020-06-17 15:25                                                                       ` Marc Zyngier
2020-06-17 18:46                                                                       ` Stefano Stabellini
2020-06-17 23:52                                                                         ` CodeWiz2280
2020-06-23 20:50                                                                           ` CodeWiz2280
2020-06-24  7:50                                                                             ` Bertrand Marquis
2020-06-24 17:28                                                                               ` Stefano Stabellini

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='CAJ=z9a1k606A+sA467eY8iPuHnptMUFzxEFithpe=JKHogjt0g@mail.gmail.com' \
    --to=julien.grall.oss@gmail.com \
    --cc=Bertrand.Marquis@arm.com \
    --cc=codewiz2280@gmail.com \
    --cc=maz@kernel.org \
    --cc=nd@arm.com \
    --cc=sstabellini@kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.