On Thu, Nov 14, 2013 at 6:48 AM, Dario Faggioli
wrote:
> On gio, 2013-11-14 at 11:21 +, David Vrabel wrote:
>> On 14/11/13 07:26, Dario Faggioli wrote:
>> > IIRC, it's more something that was already happening (the breakage, I
>> > mean), than a "safety net" for the unforeseeable future. Might
On Wed, 13 Nov 2013, Elena Ufimtseva wrote:
> Issues Xen hypercall subop XENMEM_get_vnumainfo and sets the
> NUMA topology, otherwise sets dummy NUMA node and prevents
> numa_init from calling other numa initializators as they may
> break other guests.
>
> Signed-off-by: Elena Ufimtseva
> ---
>
On gio, 2013-11-14 at 11:21 +, David Vrabel wrote:
> On 14/11/13 07:26, Dario Faggioli wrote:
> > IIRC, it's more something that was already happening (the breakage, I
> > mean), than a "safety net" for the unforeseeable future. Might be worth
> > giving some context about it, perhaps referenci
On 14/11/13 07:26, Dario Faggioli wrote:
> On mer, 2013-11-13 at 22:36 -0500, Elena Ufimtseva wrote:
>> +/*
>> + * Set the "dummy" node and exit without error so Linux
>> + * will not try any NUMA init functions which might break
>> + * guests in the future. This will discard all pr
On 14/11/13 03:36, Elena Ufimtseva wrote:
> Issues Xen hypercall subop XENMEM_get_vnumainfo and sets the
> NUMA topology, otherwise sets dummy NUMA node and prevents
> numa_init from calling other numa initializators as they may
> break other guests.
"break other guests" doesn't seem correct to me
On mer, 2013-11-13 at 22:36 -0500, Elena Ufimtseva wrote:
> Signed-off-by: Elena Ufimtseva
> ---
> +++ b/arch/x86/include/asm/xen/vnuma.h
> @@ -0,0 +1,12 @@
> +#ifndef _ASM_X86_VNUMA_H
> +#define _ASM_X86_VNUMA_H
> +
> +#ifdef CONFIG_XEN
> +int xen_vnuma_supported(void);
> +int xen_numa_init(void)
Issues Xen hypercall subop XENMEM_get_vnumainfo and sets the
NUMA topology, otherwise sets dummy NUMA node and prevents
numa_init from calling other numa initializators as they may
break other guests.
Signed-off-by: Elena Ufimtseva
---
arch/x86/include/asm/xen/vnuma.h | 12
arch/x86/mm/nu
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