All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jan Kiszka <jan.kiszka@siemens.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Avi Kivity <avi@redhat.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	Anthony Liguori <aliguori@us.ibm.com>,
	Alexander Graf <agraf@suse.de>,
	Glauber Costa <glommer@redhat.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>
Subject: Re: [PATCH v2 00/21] qemu-kvm: Hook cleanups and extended use of upstream code
Date: Wed, 03 Feb 2010 19:02:58 +0100	[thread overview]
Message-ID: <4B69BA52.5050006@siemens.com> (raw)
In-Reply-To: <20100203165051.GA29235@amt.cnet>

Marcelo Tosatti wrote:
> On Wed, Feb 03, 2010 at 09:53:25AM +0100, Jan Kiszka wrote:
>> This version addresses the feedback on v2, namely:
>> - assert(<vm stopped> || <current thread == env->thread>) on low-level
>>   load/save registers
>> - fixed mpstate initialization
>>
>> Yet untested is -no-kvm-irqchip with smp due to some bug in unpatched
>> qemu-kvm or the kernel modules. Still investigating.
> 
> Don't recall it ever working properly. Guess that IPI emulation with
> signals is problematic.

OK, then it only works by chance on some boxes. Specifically, forcing
qemu onto a single host core "solves" the issue - suspicious.

> 
>> Pull URL is still
>>
>> 	git://git.kiszka.org/qemu-kvm.git queues/vcpu-state
>>
>> PS: The corresponding upstream queue is now available under
>> queues/kvm-upstream in the same repository. Will send it out later if
>> there are no further remarks on this series to avoid flooding the
>> mailing lists. Early testers are nevertheless welcome.
> 
> Can the necessary changes for cleanups go in qemu.git first, so after
> they're merged in qemu-kvm, we can apply the unification patches.
> 
> And later do the same with synchronization rework (API looks fine to
> me).

Fine with me. Will send out my upstream queue - against uq/master or
directly against qemu.git then?

> 
> Nice work!
> 

Thanks,
Jan

-- 
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux

WARNING: multiple messages have this Message-ID (diff)
From: Jan Kiszka <jan.kiszka@siemens.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	Glauber Costa <glommer@redhat.com>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	Alexander Graf <agraf@suse.de>, Avi Kivity <avi@redhat.com>
Subject: [Qemu-devel] Re: [PATCH v2 00/21] qemu-kvm: Hook cleanups and extended use of upstream code
Date: Wed, 03 Feb 2010 19:02:58 +0100	[thread overview]
Message-ID: <4B69BA52.5050006@siemens.com> (raw)
In-Reply-To: <20100203165051.GA29235@amt.cnet>

Marcelo Tosatti wrote:
> On Wed, Feb 03, 2010 at 09:53:25AM +0100, Jan Kiszka wrote:
>> This version addresses the feedback on v2, namely:
>> - assert(<vm stopped> || <current thread == env->thread>) on low-level
>>   load/save registers
>> - fixed mpstate initialization
>>
>> Yet untested is -no-kvm-irqchip with smp due to some bug in unpatched
>> qemu-kvm or the kernel modules. Still investigating.
> 
> Don't recall it ever working properly. Guess that IPI emulation with
> signals is problematic.

OK, then it only works by chance on some boxes. Specifically, forcing
qemu onto a single host core "solves" the issue - suspicious.

> 
>> Pull URL is still
>>
>> 	git://git.kiszka.org/qemu-kvm.git queues/vcpu-state
>>
>> PS: The corresponding upstream queue is now available under
>> queues/kvm-upstream in the same repository. Will send it out later if
>> there are no further remarks on this series to avoid flooding the
>> mailing lists. Early testers are nevertheless welcome.
> 
> Can the necessary changes for cleanups go in qemu.git first, so after
> they're merged in qemu-kvm, we can apply the unification patches.
> 
> And later do the same with synchronization rework (API looks fine to
> me).

Fine with me. Will send out my upstream queue - against uq/master or
directly against qemu.git then?

> 
> Nice work!
> 

Thanks,
Jan

-- 
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux

  reply	other threads:[~2010-02-03 18:03 UTC|newest]

Thread overview: 75+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-02-03  8:53 [PATCH v2 00/21] qemu-kvm: Hook cleanups and extended use of upstream code Jan Kiszka
2010-02-03  8:53 ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 01/21] qemu-kvm: Drop vmport changes Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-07 13:17   ` Avi Kivity
2010-02-07 13:17     ` [Qemu-devel] " Avi Kivity
2010-02-07 13:54     ` Jan Kiszka
2010-02-07 13:54       ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 02/21] KVM: Make vmport KVM-compatible Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 03/21] qemu-kvm: Clean up register access API Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 04/21] KVM: x86: Fix up misreported CPU features Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 05/21] qemu-kvm: Use upstream kvm_enabled and cpu_synchronize_state Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 06/21] qemu-kvm: Use upstream kvm_setup_guest_memory Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 07/21] qemu-kvm: Use some more upstream prototypes Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 08/21] qemu-kvm: Use upstream kvm_arch_get_supported_cpuid Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 09/21] qemu-kvm: Use upstream kvm_pit_in_kernel Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 10/21] KVM: Move and rename regs_modified Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 11/21] KVM: Rework of guest debug state writing Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 12/21] qemu-kvm: Use upstream kvm_vcpu_dirty Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 13/21] qemu-kvm: Use upstream guest debug code Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 14/21] qemu-kvm: Rework VCPU state writeback API Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-07 13:34   ` Avi Kivity
2010-02-07 13:34     ` [Qemu-devel] " Avi Kivity
2010-02-07 13:51     ` Jan Kiszka
2010-02-07 13:51       ` [Qemu-devel] " Jan Kiszka
2010-02-07 13:58       ` Avi Kivity
2010-02-07 13:58         ` [Qemu-devel] " Avi Kivity
2010-02-07 14:26         ` Jan Kiszka
2010-02-07 14:26           ` [Qemu-devel] " Jan Kiszka
2010-02-07 14:32           ` Avi Kivity
2010-02-07 14:32             ` [Qemu-devel] " Avi Kivity
2010-02-03  8:53 ` [PATCH v2 15/21] qemu-kvm: Clean up mpstate synchronization Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 16/21] KVM: x86: Restrict writeback of VCPU state Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 17/21] qemu-kvm: Use VCPU event state for reset and vmsave/load Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 18/21] qemu-kvm: Cleanup/fix TSC and PV clock writeback Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 19/21] qemu-kvm: Clean up KVM's APIC hooks Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 20/21] qemu-kvm: Move kvm_set_boot_cpu_id Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03  8:53 ` [PATCH v2 21/21] qemu-kvm: Bring qemu_init_vcpu back home Jan Kiszka
2010-02-03  8:53   ` [Qemu-devel] " Jan Kiszka
2010-02-03 16:50 ` [PATCH v2 00/21] qemu-kvm: Hook cleanups and extended use of upstream code Marcelo Tosatti
2010-02-03 16:50   ` [Qemu-devel] " Marcelo Tosatti
2010-02-03 18:02   ` Jan Kiszka [this message]
2010-02-03 18:02     ` Jan Kiszka
2010-02-03 18:36     ` Marcelo Tosatti
2010-02-03 18:36       ` [Qemu-devel] " Marcelo Tosatti
2010-02-04  7:17   ` Gleb Natapov
2010-02-04  7:17     ` [Qemu-devel] " Gleb Natapov
2010-02-04  8:18     ` [Qemu-devel] Need QEMU source and documentation Taimoor Mirza
2010-02-04  9:40       ` Roy Tam
2010-02-04 14:12       ` Anthony Liguori
2010-02-07  9:46 ` [PATCH v2 00/21] qemu-kvm: Hook cleanups and extended use of upstream code Gleb Natapov
2010-02-07  9:46   ` [Qemu-devel] " Gleb Natapov
2010-02-07 11:28   ` Jan Kiszka
2010-02-07 11:28     ` [Qemu-devel] " Jan Kiszka
2010-02-07 11:51     ` Gleb Natapov
2010-02-07 11:51       ` [Qemu-devel] " Gleb Natapov

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4B69BA52.5050006@siemens.com \
    --to=jan.kiszka@siemens.com \
    --cc=agraf@suse.de \
    --cc=aliguori@us.ibm.com \
    --cc=avi@redhat.com \
    --cc=glommer@redhat.com \
    --cc=kvm@vger.kernel.org \
    --cc=mtosatti@redhat.com \
    --cc=qemu-devel@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.