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From: Jes Sorensen <jes@sgi.com>
To: Filip Navara <filip.navara@gmail.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
	qemu-devel@nongnu.org, Avi Kivity <avi@redhat.com>
Subject: Re: [Qemu-devel] [patch 2/2] QEMU BOCHS bios patches to use maxcpus value.
Date: Tue, 14 Jul 2009 13:21:50 +0200	[thread overview]
Message-ID: <4A5C6A4E.8010201@sgi.com> (raw)
In-Reply-To: <5b31733c0907140221l3c2b6b3an1e5ebf79eaeef703@mail.gmail.com>

On 07/14/2009 11:21 AM, Filip Navara wrote:
> BTW, many other guests complain when ACPI describes more processors
> than actually present in machine. That's why I implemented the dynamic
> DSDT generation in Bochs BIOS in the first place. One that comes to
> mind is MacOS X, or the Darwin kernel respectively.

Hi Filip,

As Gleb mentioned, this is pretty common behavior on real hardware. Most
of the boards I have here, declare the maximum number of possible CPUs,
even when they are not all active (like if you disable hyper threading).

I like the idea of dynamic declerations, but it's problematic as the
ACPI code gets more complicated.

I'd like to try and find out what broke in Anthony's case.

Cheers,
Jes

  parent reply	other threads:[~2009-07-14 11:22 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-24  8:35 [Qemu-devel] [patch 0/2] QEMU maxcpus support v2 Jes Sorensen
2009-06-24  8:35 ` [Qemu-devel] [patch 1/2] Introduce -smp , maxcpus= flag to specify maximum number of CPUS Jes Sorensen
2009-06-24  9:02   ` [Qemu-devel] " Avi Kivity
2009-06-24  9:02     ` Jes Sorensen
2009-06-24  9:15       ` Avi Kivity
2009-06-24 12:04         ` Jes Sorensen
2009-06-24  8:35 ` [Qemu-devel] [patch 2/2] QEMU BOCHS bios patches to use maxcpus value Jes Sorensen
2009-07-09 21:57   ` Anthony Liguori
2009-07-12  9:39     ` Avi Kivity
2009-07-12 13:23       ` Anthony Liguori
2009-07-12 13:36         ` Avi Kivity
2009-07-14  8:38     ` Jes Sorensen
2009-07-14  9:21       ` Filip Navara
2009-07-14  9:32         ` Gleb Natapov
2009-07-14 10:16           ` Alexander Graf
2009-07-14 11:15             ` Filip Navara
2009-07-14 11:21         ` Jes Sorensen [this message]
  -- strict thread matches above, loose matches on Subject: below --
2009-07-23 15:03 [Qemu-devel] [PATCH 0/2] QEMU maxcpus support v4 Jes Sorensen
2009-07-23 15:03 ` [Qemu-devel] [PATCH 2/2] QEMU BOCHS bios patches to use maxcpus value Jes Sorensen
2009-07-20 14:43 [Qemu-devel] [PATCH 0/2] QEMU maxcpus support v3 Jes Sorensen
2009-07-20 14:43 ` [Qemu-devel] [PATCH 2/2] QEMU BOCHS bios patches to use maxcpus value Jes Sorensen
2009-07-14 12:53 [Qemu-devel] [PATCH 0/2] QEMU maxcpus support v2 Jes Sorensen
2009-07-14 12:53 ` [Qemu-devel] [PATCH 2/2] QEMU BOCHS bios patches to use maxcpus value Jes Sorensen
2009-06-23 10:00 [Qemu-devel] [patch 0/2] QEMU maxcpus support Jes Sorensen
2009-06-23 10:00 ` [Qemu-devel] [patch 2/2] QEMU BOCHS bios patches to use maxcpus value Jes Sorensen

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