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xen-devel
[Xen-devel] Re: [PATCH] enable pvhvm vcpu placement in kernel
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To: |
Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [PATCH] enable pvhvm vcpu placement in kernel |
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From: |
Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx> |
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Date: |
Tue, 8 Nov 2011 17:08:11 +0000 |
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Cc: |
"jeremy@xxxxxxxx" <jeremy@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>, "joe.jin@xxxxxxxxxx" <joe.jin@xxxxxxxxxx>, "zhenzhong.duan@xxxxxxxxxx" <zhenzhong.duan@xxxxxxxxxx>, Stefano, "linux-x86_64@xxxxxxxxxxxxxxx" <linux-x86_64@xxxxxxxxxxxxxxx> |
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Delivery-date: |
Tue, 08 Nov 2011 09:12:01 -0800 |
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www-data@xxxxxxxxxxxxxxxxxxx |
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<20111108164820.GA30802@xxxxxxxxxxxxxxxxxxx> |
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<1319779739-19300-1-git-send-email-zhenzhong.duan@xxxxxxxxxx> <20111108164820.GA30802@xxxxxxxxxxxxxxxxxxx> |
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Alpine 2.00 (DEB 1167 2008-08-23) |
On Tue, 8 Nov 2011, Konrad Rzeszutek Wilk wrote:
> On Thu, Oct 27, 2011 at 10:28:59PM -0700, zhenzhong.duan@xxxxxxxxxx wrote:
> > pvhvm running with more than 32 vcpus and pv_irq/pv_time enabled
> > need vcpu placement to work, or else it will softlockup.
>
> Stefano?
Ack.
> >
> > Signed-off-by: Zhenzhong Duan <zhenzhong.duan@xxxxxxxxxx>
> > ---
> > diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
> > index da8afd5..1f92865 100644
> > --- a/arch/x86/xen/enlighten.c
> > +++ b/arch/x86/xen/enlighten.c
> > @@ -1356,7 +1356,7 @@ static int __cpuinit xen_hvm_cpu_notify(struct
> > notifier_block *self,
> > int cpu = (long)hcpu;
> > switch (action) {
> > case CPU_UP_PREPARE:
> > - per_cpu(xen_vcpu, cpu) =
> > &HYPERVISOR_shared_info->vcpu_info[cpu];
> > + xen_vcpu_setup(cpu);
> > if (xen_have_vector_callback)
> > xen_init_lock_cpu(cpu);
> > break;
> > @@ -1386,7 +1386,6 @@ static void __init xen_hvm_guest_init(void)
> > xen_hvm_smp_init();
> > register_cpu_notifier(&xen_hvm_cpu_notifier);
> > xen_unplug_emulated_devices();
> > - have_vcpu_info_placement = 0;
> > x86_init.irqs.intr_init = xen_init_IRQ;
> > xen_hvm_init_time_ops();
> > xen_hvm_init_mmu_ops();
>
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