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From: Michael Tokarev <mjt@tls.msk.ru>
To: Jan Kiszka <jan.kiszka@SIEMENS.COM>
Cc: Isaku Yamahata <yamahata@valinux.co.jp>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	KVM list <kvm@vger.kernel.org>, Avi Kivity <avi@redhat.com>
Subject: Re: winXP "Standard PC" HAL and qemu-kvm >= 0.15
Date: Tue, 06 Dec 2011 22:45:26 +0400	[thread overview]
Message-ID: <4EDE62C6.8000506@msgid.tls.msk.ru> (raw)
In-Reply-To: <4EDE5D2A.2020809@siemens.com>

On 06.12.2011 22:21, Jan Kiszka wrote:
[]
>> For the 0.15 .. 1.0 change, the first commit which restores the (broken
>> in 0.15) functionality is this one:
>>
>> commit 86fbf97ceb4a9c46a609dd4ae053ba4262b68fe8
>> Author: Jan Kiszka <jan.kiszka@siemens.com>
>> Date:   Fri Oct 7 09:19:45 2011 +0200
>>
>>     i8259: Clear ELCR on reset
>>
>>     The ELCR is actually part of the chipset but we model it here for
>>     simplicity reasons. The PIIX3 clears the ELCR on reset, which was once
>>     broken by 4dbe19e181. Fix this by splitting up pic_init_reset from
>>     pic_reset and clearing the register in the latter.
>>
>>     Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
>>     Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
>>
>> Which is quite expected having in mind the commit which "broke"
>> it for 0.15.
> 
> Yep, makes a lot of sense. That patch should be applied to stable then
> (who's in charge?).

I'm not sure it makes much sense to continue 0.15 at this stage.

>>
>>> Upstream qemu 1.0 does not have this issue too.
>>>
>>>> [1] http://thread.gmane.org/gmane.comp.emulators.kvm.devel/82871
>>>
>>> I'll try to verify this series in a moment, but hopefully it will work
>>> fine too :)
>>
>> And that turned out to be not so easy for me.  Which is this
>> series against?  Is there may be a git tree with this series
>> applied already?
> 
> Oops. It's against qemu-kvm's uq/master queue. Find a git tree at
> 
> git://git.kiszka.org/qemu-kvm.git queues/kvm-irqchip

This tree does not boot for me at all (on regular x86-64 setup) -
it stays in bios after "Booting from hard disk" with 100% CPU
usage.

/mjt

WARNING: multiple messages have this Message-ID (diff)
From: Michael Tokarev <mjt@tls.msk.ru>
To: Jan Kiszka <jan.kiszka@SIEMENS.COM>
Cc: Isaku Yamahata <yamahata@valinux.co.jp>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	KVM list <kvm@vger.kernel.org>, Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] winXP "Standard PC" HAL and qemu-kvm >= 0.15
Date: Tue, 06 Dec 2011 22:45:26 +0400	[thread overview]
Message-ID: <4EDE62C6.8000506@msgid.tls.msk.ru> (raw)
In-Reply-To: <4EDE5D2A.2020809@siemens.com>

On 06.12.2011 22:21, Jan Kiszka wrote:
[]
>> For the 0.15 .. 1.0 change, the first commit which restores the (broken
>> in 0.15) functionality is this one:
>>
>> commit 86fbf97ceb4a9c46a609dd4ae053ba4262b68fe8
>> Author: Jan Kiszka <jan.kiszka@siemens.com>
>> Date:   Fri Oct 7 09:19:45 2011 +0200
>>
>>     i8259: Clear ELCR on reset
>>
>>     The ELCR is actually part of the chipset but we model it here for
>>     simplicity reasons. The PIIX3 clears the ELCR on reset, which was once
>>     broken by 4dbe19e181. Fix this by splitting up pic_init_reset from
>>     pic_reset and clearing the register in the latter.
>>
>>     Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
>>     Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
>>
>> Which is quite expected having in mind the commit which "broke"
>> it for 0.15.
> 
> Yep, makes a lot of sense. That patch should be applied to stable then
> (who's in charge?).

I'm not sure it makes much sense to continue 0.15 at this stage.

>>
>>> Upstream qemu 1.0 does not have this issue too.
>>>
>>>> [1] http://thread.gmane.org/gmane.comp.emulators.kvm.devel/82871
>>>
>>> I'll try to verify this series in a moment, but hopefully it will work
>>> fine too :)
>>
>> And that turned out to be not so easy for me.  Which is this
>> series against?  Is there may be a git tree with this series
>> applied already?
> 
> Oops. It's against qemu-kvm's uq/master queue. Find a git tree at
> 
> git://git.kiszka.org/qemu-kvm.git queues/kvm-irqchip

This tree does not boot for me at all (on regular x86-64 setup) -
it stays in bios after "Booting from hard disk" with 100% CPU
usage.

/mjt

  reply	other threads:[~2011-12-06 18:45 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-05  9:21 winXP "Standard PC" HAL and qemu-kvm >= 0.15 Michael Tokarev
2011-12-05 13:28 ` Avi Kivity
2011-12-05 20:19   ` Michael Tokarev
2011-12-06 10:32     ` Avi Kivity
2011-12-06 11:02       ` Michael Tokarev
2011-12-06 12:27         ` Michael S. Tsirkin
2011-12-06 12:27           ` [Qemu-devel] " Michael S. Tsirkin
2011-12-06 14:45           ` Michael Tokarev
2011-12-06 14:45             ` [Qemu-devel] " Michael Tokarev
2011-12-06 16:29             ` Michael Tokarev
2011-12-06 16:29               ` Michael Tokarev
2011-12-06 16:38               ` Jan Kiszka
2011-12-06 16:38                 ` [Qemu-devel] " Jan Kiszka
2011-12-06 16:57                 ` Michael Tokarev
2011-12-06 16:57                   ` [Qemu-devel] " Michael Tokarev
2011-12-06 17:45                   ` Jan Kiszka
2011-12-06 17:45                     ` [Qemu-devel] " Jan Kiszka
2011-12-06 18:13                   ` Michael Tokarev
2011-12-06 18:13                     ` [Qemu-devel] " Michael Tokarev
2011-12-06 18:21                     ` Jan Kiszka
2011-12-06 18:21                       ` [Qemu-devel] " Jan Kiszka
2011-12-06 18:45                       ` Michael Tokarev [this message]
2011-12-06 18:45                         ` Michael Tokarev
2011-12-06 19:38                         ` Michael Tokarev
2011-12-06 19:38                           ` [Qemu-devel] " Michael Tokarev
2011-12-06 20:58                           ` Jan Kiszka
2011-12-06 20:58                             ` [Qemu-devel] " Jan Kiszka
2011-12-06 21:12                             ` Jan Kiszka
2011-12-06 21:12                               ` [Qemu-devel] " Jan Kiszka
2011-12-07  7:11                               ` Michael Tokarev
2011-12-07  9:02                       ` Kevin Wolf
2011-12-07  9:02                         ` [Qemu-devel] " Kevin Wolf
2011-12-07  9:31                         ` Michael Tokarev
2011-12-07  9:31                           ` Michael Tokarev

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