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From: Laszlo Ersek <lersek@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>,
	Kevin O'Connor <kevin@koconnor.net>
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	qemu devel list <qemu-devel@nongnu.org>,
	Gerd Hoffmann <kraxel@redhat.com>,
	Igor Mammedov <imammedo@redhat.com>,
	"Jordan Justen (Intel address)" <jordan.l.justen@intel.com>,
	Michael Kinney <michael.d.kinney@intel.com>
Subject: Re: [Qemu-devel] [PATCH v3 for-2.9 0/3] q35: add negotiable broadcast SMI
Date: Thu, 24 Nov 2016 09:37:41 +0100	[thread overview]
Message-ID: <f70c8266-04c4-825a-1046-58975d1b714d@redhat.com> (raw)
In-Reply-To: <20161124062859-mutt-send-email-mst@kernel.org>

On 11/24/16 05:29, Michael S. Tsirkin wrote:
> On Wed, Nov 23, 2016 at 07:38:35PM -0500, Kevin O'Connor wrote:
>> As a general comment - it does seem unfortunate that we keep building
>> adhoc interfaces to communicate information from firmware to QEMU.  We
>> have a generic mechanism (fw_cfg) for passing adhoc information from
>> QEMU to the firmware, but the inverse seems to always involve magic
>> pci registers, magic io space registers, specific init ordering, etc.
> 
> FWIW I posted a proposal
> 	fw-cfg: support writeable blobs
> a while ago to try to address that
> 

Yes, here's the discussion (Feb 2016):

https://www.mail-archive.com/qemu-devel@nongnu.org/msg354852.html

and it was even part of a pull req (Mar 2016):

https://www.mail-archive.com/qemu-devel@nongnu.org/msg359348.html

but it wasn't merged, apparently.

If QEMU (re)gains this feature, I can try basing the broadcast SMI
negotiation on it.

Thanks
Laszlo

  reply	other threads:[~2016-11-24  8:37 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-18 10:36 [Qemu-devel] [PATCH v3 for-2.9 0/3] q35: add negotiable broadcast SMI Laszlo Ersek
2016-11-18 10:36 ` [Qemu-devel] [PATCH v3 for-2.9 1/3] hw/isa/apm: introduce callback for APM_STS_IOPORT writes Laszlo Ersek
2016-11-18 10:36 ` [Qemu-devel] [PATCH v3 for-2.9 2/3] hw/isa/lpc_ich9: add SMI feature negotiation via APM_STS Laszlo Ersek
2016-11-18 10:36 ` [Qemu-devel] [PATCH v3 for-2.9 3/3] hw/isa/lpc_ich9: ICH9_APM_STS_F_BROADCAST_SMI: inject SMI on all VCPUs Laszlo Ersek
2016-11-18 14:10 ` [Qemu-devel] [PATCH v3 for-2.9 0/3] q35: add negotiable broadcast SMI Michael S. Tsirkin
2016-11-23 15:48   ` Laszlo Ersek
2016-11-23 22:35 ` Paolo Bonzini
2016-11-24  0:01   ` Laszlo Ersek
2016-11-24  0:31     ` Laszlo Ersek
2016-11-24  0:38     ` Kevin O'Connor
2016-11-24  4:29       ` Michael S. Tsirkin
2016-11-24  8:37         ` Laszlo Ersek [this message]
2016-11-25  4:00           ` Michael S. Tsirkin
2016-11-25 12:31             ` Laszlo Ersek
2016-11-25 12:40               ` Laszlo Ersek
2016-11-28  9:01                 ` Gerd Hoffmann
2016-11-28 10:22                   ` Laszlo Ersek
2016-11-28 11:53                     ` Paolo Bonzini
2016-11-25 14:22               ` Igor Mammedov
2016-11-24 14:55     ` Igor Mammedov
2016-11-24 17:05       ` Paolo Bonzini
2016-11-24 18:02         ` Igor Mammedov
2016-11-25  8:55           ` Paolo Bonzini
2016-11-25 14:10             ` Igor Mammedov
2016-11-28  9:41               ` Paolo Bonzini
2016-11-28 11:24                 ` Igor Mammedov
2016-11-28 11:51                   ` Paolo Bonzini

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