From: Marcelo Tosatti <mtosatti@redhat.com>
To: Eric B Munson <emunson@mgebm.net>
Cc: avi@redhat.com, mingo@redhat.com, hpa@zytor.com,
ryanh@linux.vnet.ibm.com, aliguori@us.ibm.com,
kvm@vger.kernel.org, linux-arch@vger.kernel.org, x86@kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/4 V11] Add functions to check if the host has stopped the vm
Date: Tue, 7 Feb 2012 16:56:14 -0200 [thread overview]
Message-ID: <20120207185614.GA19800@amt.cnet> (raw)
In-Reply-To: <1328024132-7687-3-git-send-email-emunson@mgebm.net>
On Tue, Jan 31, 2012 at 10:35:30AM -0500, Eric B Munson wrote:
> When a host stops or suspends a VM it will set a flag to show this. The
> watchdog will use these functions to determine if a softlockup is real, or the
> result of a suspended VM.
>
> Signed-off-by: Eric B Munson <emunson@mgebm.net>
> asm-generic changes Acked-by: Arnd Bergmann <arnd@arndb.de>
> Cc: mingo@redhat.com
> Cc: hpa@zytor.com
> Cc: ryanh@linux.vnet.ibm.com
> Cc: aliguori@us.ibm.com
> Cc: mtosatti@redhat.com
> Cc: kvm@vger.kernel.org
> Cc: linux-arch@vger.kernel.org
> Cc: x86@kernel.org
> Cc: linux-kernel@vger.kernel.org
> ---
> Changes from V6:
> Use __this_cpu_and when clearing the PVCLOCK_GUEST_STOPPED flag
> Changes from V5:
> Collapse generic stubs into this patch
> check_and_clear_guest_stopped() takes no args and uses __get_cpu_var()
> Include individual definitions in ia64, s390, and powerpc
>
> arch/ia64/include/asm/kvm_para.h | 5 +++++
> arch/powerpc/include/asm/kvm_para.h | 5 +++++
> arch/s390/include/asm/kvm_para.h | 5 +++++
> arch/x86/include/asm/kvm_para.h | 8 ++++++++
> arch/x86/kernel/kvmclock.c | 21 +++++++++++++++++++++
> 5 files changed, 44 insertions(+), 0 deletions(-)
Where is the check_and_clear_guest_stopped() stub in
asm-generic/kvm_para.h? I think it is necessary for
other architectures.
next prev parent reply other threads:[~2012-02-07 18:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-31 15:35 [PATCH 0/4 V11] Avoid soft lockup message when KVM is stopped by host Eric B Munson
2012-01-31 15:35 ` [PATCH 1/4 V11] Add flag to indicate that a vm was stopped by the host Eric B Munson
2012-01-31 15:35 ` [PATCH 2/4 V11] Add functions to check if the host has stopped the vm Eric B Munson
2012-02-07 18:56 ` Marcelo Tosatti [this message]
2012-01-31 15:35 ` [PATCH 3/4 V11] Add ioctl for KVMCLOCK_GUEST_STOPPED Eric B Munson
2012-02-07 18:59 ` Marcelo Tosatti
2012-02-07 21:28 ` Jan Kiszka
2012-01-31 15:35 ` [PATCH 4/4 V11] Add check for suspended vm in softlockup detector Eric B Munson
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