All of lore.kernel.org
 help / color / mirror / Atom feed
From: Gerd Hoffmann <kraxel@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Laszlo Ersek <lersek@redhat.com>, qemu-devel@nongnu.org, mst@redhat.com
Subject: Re: [Qemu-devel] [PATCH 5/6] [wip] tseg, part1, not (yet) tested
Date: Tue, 21 Apr 2015 17:16:22 +0200	[thread overview]
Message-ID: <1429629382.21164.33.camel@nilsson.home.kraxel.org> (raw)
In-Reply-To: <553667E6.6010704@redhat.com>

On Di, 2015-04-21 at 17:08 +0200, Paolo Bonzini wrote:
> 
> On 21/04/2015 17:04, Gerd Hoffmann wrote:
> > Hmm.  I think if we merge all the smm / smram / tseg patches in one go
> > this should work.  Without patches reading the ESMRAMC register returns
> > zero.  With the patches the three cache-disable bits are hardcoded to
> > '1'.  This should work for detecting tseg support.
> > 
> > You also have to test for smm support.  The current protocol for this is
> > that seabios checks whenever smm is already initialized (see
> > *_apmc_smm_setup() in seabios/src/fw/smm.c) and if so it skips smm
> > initialization.  Right now qemu sets the bit on reset when running on
> > kvm, so seabios doesn't try to use smm.  On tcg the bit is clear after
> > reset and seabios actually uses smm mode.
> 
> BTW, I plan to add "-machine smm=yes/no/auto".
> 
> Gerd, are you going to implement SMI_EN locking as well?

Sure, can do that while being at it.

cheers,
  Gerd

  reply	other threads:[~2015-04-21 15:16 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-20  9:19 [Qemu-devel] [PATCH 1/6] [fixup] add ESMRAMC default Gerd Hoffmann
2015-04-20  9:19 ` [Qemu-devel] [PATCH 2/6] add SMRAM+ESMRAMC wmask Gerd Hoffmann
2015-04-20 12:05   ` Michael S. Tsirkin
2015-04-20  9:19 ` [Qemu-devel] [PATCH 3/6] q35: implement SMRAM.D_LCK Gerd Hoffmann
2015-04-20 12:06   ` Michael S. Tsirkin
2015-04-20  9:19 ` [Qemu-devel] [PATCH 4/6] q35: add test for SMRAM.D_LCK Gerd Hoffmann
2015-04-20 12:06   ` Michael S. Tsirkin
2015-04-20  9:19 ` [Qemu-devel] [PATCH 5/6] [wip] tseg, part1, not (yet) tested Gerd Hoffmann
2015-04-20 11:45   ` Paolo Bonzini
2015-04-21 14:18   ` Laszlo Ersek
2015-04-21 15:04     ` Gerd Hoffmann
2015-04-21 15:08       ` Paolo Bonzini
2015-04-21 15:16         ` Gerd Hoffmann [this message]
2015-04-21 18:46       ` Laszlo Ersek
2015-04-22  6:07         ` Gerd Hoffmann
2015-04-22  8:09       ` Gerd Hoffmann
2015-04-22  8:52         ` Laszlo Ersek
2015-04-22  9:33           ` Gerd Hoffmann
2015-04-22 21:41       ` Laszlo Ersek
2015-04-22 21:51         ` Laszlo Ersek
2015-04-23  7:02           ` Gerd Hoffmann
2015-04-23  7:41             ` Laszlo Ersek
2015-04-23  8:33               ` Laszlo Ersek
2015-04-23  8:34               ` Gerd Hoffmann
2015-04-23  8:42                 ` Laszlo Ersek
2015-04-23 10:27             ` Paolo Bonzini
2015-04-20  9:19 ` [Qemu-devel] [PATCH 6/6] [wip] tseg, part2, " Gerd Hoffmann
2015-04-21 14:30   ` Laszlo Ersek
2015-04-21 14:38     ` Paolo Bonzini
2015-04-21 15:05       ` Laszlo Ersek
2015-04-21 15:14         ` Gerd Hoffmann
2015-04-21 15:21         ` Paolo Bonzini
2015-04-21 20:31           ` [Qemu-devel] implementing EFI_SMM_CONTROL2_PROTOCOL.Trigger() (was: [PATCH 6/6] [wip] tseg, part2, not (yet) tested) Laszlo Ersek
2015-04-21 20:58             ` [Qemu-devel] implementing EFI_SMM_CONTROL2_PROTOCOL.Trigger() Paolo Bonzini
2015-04-24 11:56             ` [Qemu-devel] [edk2] implementing EFI_SMM_CONTROL2_PROTOCOL.Trigger() (was: [PATCH 6/6] [wip] tseg, part2, not (yet) tested) Yao, Jiewen
2015-04-24 13:00               ` [Qemu-devel] [edk2] implementing EFI_SMM_CONTROL2_PROTOCOL.Trigger() Paolo Bonzini
2015-04-24 13:16                 ` Yao, Jiewen
2015-04-24 14:50               ` [Qemu-devel] [edk2] implementing EFI_SMM_CONTROL2_PROTOCOL.Trigger() (was: [PATCH 6/6] [wip] tseg, part2, not (yet) tested) Yao, Jiewen
2015-04-24 16:46                 ` [Qemu-devel] [edk2] implementing EFI_SMM_CONTROL2_PROTOCOL.Trigger() Laszlo Ersek
2015-04-21 15:12       ` [Qemu-devel] [PATCH 6/6] [wip] tseg, part2, not (yet) tested Gerd Hoffmann
2015-04-20 12:07 ` [Qemu-devel] [PATCH 1/6] [fixup] add ESMRAMC default Michael S. Tsirkin
2015-04-20 12:27   ` Paolo Bonzini
2015-04-20 13:23     ` Gerd Hoffmann

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=1429629382.21164.33.camel@nilsson.home.kraxel.org \
    --to=kraxel@redhat.com \
    --cc=lersek@redhat.com \
    --cc=mst@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=qemu-devel@nongnu.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.