Re: [GIT PULL] KVM fixes for 4.10 merge window

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




----- Original Message -----
> From: "Pan Xinhui" <xinhui@xxxxxxxxxxxxxxxxxx>
> To: "Linus Torvalds" <torvalds@xxxxxxxxxxxxxxxxxxxx>, "Paolo Bonzini" <pbonzini@xxxxxxxxxx>
> Cc: "Linux Kernel Mailing List" <linux-kernel@xxxxxxxxxxxxxxx>, "Radim Krčmář" <rkrcmar@xxxxxxxxxx>, "KVM list"
> <kvm@xxxxxxxxxxxxxxx>
> Sent: Saturday, December 17, 2016 4:09:16 AM
> Subject: Re: [GIT PULL] KVM fixes for 4.10 merge window
> 
> 
> 
> 在 2016/12/17 03:42, Linus Torvalds 写道:
> > On Fri, Dec 16, 2016 at 8:57 AM, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote:
> >>
> >>   git://git.kernel.org/pub/scm/virt/kvm/kvm.git tags/for-linus
> >
> > This piece-of-shit branch has obviously never been even compile-tested:
> >
> >   arch/x86/kernel/kvm.c: In function ‘__kvm_vcpu_is_preempted’:
> >   arch/x86/kernel/kvm.c:596:14: error: ‘struct kvm_steal_time’ has no
> > member named ‘preempted’
> >
> hi, Linus
> 	oh, my bad also. I introduce this struct member and use it in same patch.
> Better to separate tem into two patches. I make one fix patch below. sorry
> again.

Hi Xinhui, don't worry it's purely my fault. :)

> 	I have known where is th problem, I think if we can set this ->preempted
> 	later after preempted_enable()
> or just introduce something like write_guest_nosleep (per cpu memory section
> in guest, so there is no page_fault or any other cannot sleep problems)?

Yes there is already kvm_read_guest_inatomic, we can add an equivalent one
for writes.  It will be for 4.11 anyway, so there's time.

Paolo
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux