* [PATCH] enable pvhvm vcpu placement in kernel
@ 2011-10-28 5:28 zhenzhong.duan
2011-11-08 16:48 ` Konrad Rzeszutek Wilk
0 siblings, 1 reply; 3+ messages in thread
From: zhenzhong.duan @ 2011-10-28 5:28 UTC (permalink / raw)
To: jeremy, stefano.stabellini
Cc: linux-x86_64, xen-devel, joe.jin, zhenzhong.duan, konrad.wilk
pvhvm running with more than 32 vcpus and pv_irq/pv_time enabled
need vcpu placement to work, or else it will softlockup.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
---
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();
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] enable pvhvm vcpu placement in kernel
2011-10-28 5:28 [PATCH] enable pvhvm vcpu placement in kernel zhenzhong.duan
@ 2011-11-08 16:48 ` Konrad Rzeszutek Wilk
2011-11-08 17:08 ` Stefano Stabellini
0 siblings, 1 reply; 3+ messages in thread
From: Konrad Rzeszutek Wilk @ 2011-11-08 16:48 UTC (permalink / raw)
To: zhenzhong.duan
Cc: jeremy, xen-devel, joe.jin, linux-x86_64, stefano.stabellini
On Thu, Oct 27, 2011 at 10:28:59PM -0700, zhenzhong.duan@oracle.com 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?
>
> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
> ---
> 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();
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] enable pvhvm vcpu placement in kernel
2011-11-08 16:48 ` Konrad Rzeszutek Wilk
@ 2011-11-08 17:08 ` Stefano Stabellini
0 siblings, 0 replies; 3+ messages in thread
From: Stefano Stabellini @ 2011-11-08 17:08 UTC (permalink / raw)
To: Konrad Rzeszutek Wilk
Cc: jeremy@goop.org, xen-devel@lists.xensource.com, Stabellini,
joe.jin@oracle.com, zhenzhong.duan@oracle.com
On Tue, 8 Nov 2011, Konrad Rzeszutek Wilk wrote:
> On Thu, Oct 27, 2011 at 10:28:59PM -0700, zhenzhong.duan@oracle.com 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@oracle.com>
> > ---
> > 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();
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-11-08 17:08 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2011-10-28 5:28 [PATCH] enable pvhvm vcpu placement in kernel zhenzhong.duan
2011-11-08 16:48 ` Konrad Rzeszutek Wilk
2011-11-08 17:08 ` Stefano Stabellini
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