From: Avi Kivity <avi@redhat.com>
To: Eric B Munson <emunson@mgebm.net>
Cc: mingo@redhat.com, hpa@zytor.com, arnd@arndb.de,
ryanh@linux.vnet.ibm.com, aliguori@us.ibm.com,
mtosatti@redhat.com, jeremy.fitzhardinge@citrix.com,
levinsasha928@gmail.com, Jan Kiszka <jan.kiszka@siemens.com>,
kvm@vger.kernel.org, linux-arch@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5 V5] Add ioctl for KVMCLOCK_GUEST_STOPPED
Date: Wed, 07 Dec 2011 16:34:08 +0200 [thread overview]
Message-ID: <4EDF7960.4080104@redhat.com> (raw)
In-Reply-To: <1323116344-17911-4-git-send-email-emunson@mgebm.net>
On 12/05/2011 10:19 PM, Eric B Munson wrote:
> Now that we have a flag that will tell the guest it was suspended, create an
> interface for that communication using a KVM ioctl.
>
> @@ -3295,6 +3295,10 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
>
> goto out;
> }
> + case KVMCLOCK_GUEST_PAUSED: {
> + r = kvm_set_guest_paused(vcpu);
> + break;
> + }
> default:
> r = -EINVAL;
> }
>
You could also do this purely from userspace by reading the kvmclock msr
and updating it. However, it's better to do this in the kernel to avoid
distributing responsibility for kvmclock across too many cooks.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-12-07 14:34 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-05 20:18 [PATCH 0/5 V5] Avoid soft lockup message when KVM is stopped by host Eric B Munson
2011-12-05 20:19 ` [PATCH 1/5 V5] Add flag to indicate that a vm was stopped by the host Eric B Munson
2011-12-05 20:19 ` [PATCH 2/5 V5] Add functions to check if the host has stopped the vm Eric B Munson
2011-12-07 14:31 ` Avi Kivity
2011-12-08 15:23 ` Eric B Munson
2011-12-14 12:11 ` Marcelo Tosatti
2011-12-14 14:37 ` Avi Kivity
2011-12-14 17:11 ` Eric B Munson
2011-12-14 17:30 ` Avi Kivity
2011-12-14 17:57 ` Eric B Munson
2011-12-05 20:19 ` [PATCH 3/5 V5] Add ioctl for KVMCLOCK_GUEST_STOPPED Eric B Munson
2011-12-07 14:34 ` Avi Kivity [this message]
2011-12-08 15:25 ` Eric B Munson
2011-12-05 20:19 ` [PATCH 4/5 V5] Add generic stubs for kvm stop check functions Eric B Munson
2011-12-07 14:36 ` Avi Kivity
2011-12-08 15:27 ` Eric B Munson
2011-12-05 20:19 ` [PATCH 5/5 V5] Add check for suspended vm in softlockup detector Eric B Munson
2011-12-07 14:38 ` Avi Kivity
2011-12-07 14:41 ` [PATCH 0/5 V5] Avoid soft lockup message when KVM is stopped by host Avi Kivity
2011-12-08 15:19 ` Eric B Munson
2011-12-14 15:08 ` Avi Kivity
2011-12-14 17:58 ` Eric B Munson
2011-12-15 9:48 ` Avi Kivity
2011-12-15 18:53 ` Eric B Munson
2011-12-19 13:01 ` Avi Kivity
2011-12-11 12:40 ` Dor Laor
2011-12-14 12:18 ` Marcelo Tosatti
2011-12-14 12:16 ` Marcelo Tosatti
2011-12-14 14:39 ` Avi Kivity
2011-12-14 14:49 ` Anthony Liguori
2011-12-14 15:01 ` Avi Kivity
2011-12-14 14:54 ` Eric B Munson
2011-12-14 18:21 ` Marcelo Tosatti
2011-12-15 10:21 ` Avi Kivity
2011-12-16 9:31 ` Marcelo Tosatti
2011-12-19 12:59 ` Avi Kivity
2011-12-19 16:11 ` Marcelo Tosatti
2011-12-19 17:50 ` Marcelo Tosatti
2011-12-22 9:59 ` Avi Kivity
2011-12-08 11:34 ` Amit Shah
2011-12-15 11:55 ` Avi Kivity
2011-12-19 12:52 ` Amit Shah
2011-12-19 12:59 ` Avi Kivity
2011-12-19 17:59 ` Amit Shah
2011-12-22 9:18 ` Dor Laor
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