From: Anthony Liguori <anthony@codemonkey.ws>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Alex Williamson <alex.williamson@redhat.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH RFC] vga: flag vga ram for notifiers
Date: Thu, 31 Mar 2011 14:26:59 -0500 [thread overview]
Message-ID: <4D94D583.7050203@codemonkey.ws> (raw)
In-Reply-To: <20110331190750.GA25914@redhat.com>
On 03/31/2011 02:07 PM, Michael S. Tsirkin wrote:
>> Just needs some love.
>>
>> VGA is just another device. It happens to be that we treat VGA
>> device memory as something that behaves like ram occassionally but
>> that does not make it RAM.
> If we agree on that, will a pair of functions for this work?
> How about device_register_ram / device_unregister_ram ?
To register normal RAM or to register stuff that isn't RAM but looks and
tastes like RAM?
>> Something like vhost doesn't need to see anything but RAM. If we
>> have a mechanism to identify RAM as RAM, then vhost can only look at
>> RAM memory and not worry about things like VGA.
>>
>> I thought Alex had gotten a mini-version of RamAPI in but I can't
>> seem to figure out what that included.
> Me neither.
>
>> At any rate, the point is
>> still that registering things that you want to exclude in vhost is
>> the wrong approach, you want to explicitly mark the things you want
>> to include.
>>
>> Regards,
>>
>> Anthony Liguori
> vhost just wants RAM.
Right, so mark RAM, and call it a day :-)
Regards,
Anthony Liguori
next prev parent reply other threads:[~2011-03-31 19:27 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-31 17:43 [Qemu-devel] [PATCH RFC] vga: flag vga ram for notifiers Michael S. Tsirkin
2011-03-31 18:33 ` Anthony Liguori
2011-03-31 18:49 ` Michael S. Tsirkin
2011-03-31 19:01 ` Anthony Liguori
2011-03-31 19:07 ` Michael S. Tsirkin
2011-03-31 19:26 ` Anthony Liguori [this message]
2011-03-31 20:03 ` Michael S. Tsirkin
2011-03-31 20:21 ` Anthony Liguori
2011-03-31 19:17 ` Alex Williamson
2011-03-31 19:18 ` Peter Maydell
2011-03-31 19:29 ` Anthony Liguori
2011-03-31 20:12 ` Peter Maydell
2011-03-31 20:23 ` Anthony Liguori
2011-03-31 21:32 ` Peter Maydell
2011-03-31 21:38 ` Michael S. Tsirkin
2011-03-31 21:49 ` Anthony Liguori
2011-03-31 23:42 ` Michael S. Tsirkin
2011-04-01 0:44 ` Anthony Liguori
2011-04-01 1:07 ` Michael S. Tsirkin
2011-04-01 7:12 ` Peter Maydell
2011-04-01 11:21 ` Michael S. Tsirkin
2011-03-31 21:26 ` Michael S. Tsirkin
2011-03-31 21:32 ` Anthony Liguori
2011-03-31 21:37 ` Michael S. Tsirkin
2011-03-31 21:48 ` Anthony Liguori
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