Re: [PATCH 2/4 V11] Add functions to check if the host has stoppedthe vm

[Marcelo Tosatti]

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@xxxxxxxxx>
> asm-generic changes Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: mingo@xxxxxxxxxx
> Cc: hpa@xxxxxxxxx
> Cc: ryanh@xxxxxxxxxxxxxxxxxx
> Cc: aliguori@xxxxxxxxxx
> Cc: mtosatti@xxxxxxxxxx
> Cc: kvm@xxxxxxxxxxxxxxx
> Cc: linux-arch@xxxxxxxxxxxxxxx
> Cc: x86@xxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> ---
> 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.


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