From: "Glauber Costa" <glommer@gmail.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/6] New shot at VGA optimization
Date: Wed, 19 Nov 2008 12:34:37 -0200 [thread overview]
Message-ID: <5d6222a80811190634y331f557bw8a7d54594cf621cd@mail.gmail.com> (raw)
In-Reply-To: <49242173.8020408@redhat.com>
On Wed, Nov 19, 2008 at 12:23 PM, Avi Kivity <avi@redhat.com> wrote:
> Glauber Costa wrote:
>>
>> Hi,
>>
>> The last version of the vga patch brought hope of a clean interface
>> for the vga optimization. However, it failed in some guests due to
>> the explicit need for alias, contrary to what we used to think.
>>
>> This needs arises from a KVM host bug
>> (http://lkml.org/lkml/2008/11/17/496)
>>
>> However, even if it gets eventually fixed, any qemu running on an
>> old enough kernel will fail. Because of that, this series introduces
>> implicit aliasing support for kvm first, to just then implement the vga
>> optimization.
>>
>> The main idea is that qemu should never need to know about our dirty
>> trick.
>>
>> Hope I didn't miss anything.
>>
>>
>
> Looks good.
Thanks, so do you.
--
Glauber Costa.
"Free as in Freedom"
http://glommer.net
"The less confident you are, the more serious you have to act."
next prev parent reply other threads:[~2008-11-19 14:34 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-19 15:26 [Qemu-devel] [PATCH 0/6] New shot at VGA optimization Glauber Costa
2008-11-19 14:23 ` Avi Kivity
2008-11-19 14:34 ` Glauber Costa [this message]
2008-11-19 15:26 ` [Qemu-devel] [PATCH 1/6] kvm: memory aliasing support for kvm Glauber Costa
2008-11-19 15:07 ` Anthony Liguori
2008-11-19 15:26 ` [Qemu-devel] [PATCH 2/6] better type checking for vga Glauber Costa
2008-11-19 15:08 ` Anthony Liguori
2008-11-19 15:26 ` [Qemu-devel] [PATCH 3/6] move vga_io_address to VGA State Glauber Costa
2008-11-19 15:26 ` [Qemu-devel] [PATCH 4/6] kvm: de-register mem region for MMIO Glauber Costa
2008-11-19 15:10 ` Anthony Liguori
2008-11-19 15:26 ` [Qemu-devel] [PATCH 5/6] Introduce kvm logging interface Glauber Costa
2008-11-19 15:18 ` Anthony Liguori
2008-11-19 17:23 ` Glauber Costa
2008-11-19 17:51 ` Anthony Liguori
2008-11-19 15:26 ` [Qemu-devel] [PATCH 6/6] kvm: vga optimization Glauber Costa
2008-11-19 15:23 ` Anthony Liguori
2008-11-19 17:19 ` Glauber Costa
2008-11-19 17:26 ` Anthony Liguori
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