* [PATCH] xen: disable ACPI NUMA for PV guests [not found] <1291369764.5514.15168.camel@zakaz.uk.xensource.com> @ 2010-12-03 9:54 ` Ian Campbell 2010-12-13 22:17 ` Vincent Caron 0 siblings, 1 reply; 2+ messages in thread From: Ian Campbell @ 2010-12-03 9:54 UTC (permalink / raw) To: Jeremy Fitzhardinge; +Cc: xen-devel, Vincent Caron, linux-kernel, Ian Campbell Xen does not currently expose PV-NUMA information to PV guests. Therefore disable NUMA for the time being to prevent the kernel picking up on an host-level NUMA information which it might come across in the firmware. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> --- arch/x86/xen/enlighten.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index fbb35cd..7cdf2f3 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1195,6 +1195,10 @@ asmlinkage void __init xen_start_kernel(void) xen_smp_init(); +#ifdef CONFIG_ACPI_NUMA + acpi_numa = -1; +#endif + pgd = (pgd_t *)xen_start_info->pt_base; __supported_pte_mask |= _PAGE_IOMAP; -- 1.5.6.5 ^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] xen: disable ACPI NUMA for PV guests 2010-12-03 9:54 ` [PATCH] xen: disable ACPI NUMA for PV guests Ian Campbell @ 2010-12-13 22:17 ` Vincent Caron 0 siblings, 0 replies; 2+ messages in thread From: Vincent Caron @ 2010-12-13 22:17 UTC (permalink / raw) To: Ian Campbell; +Cc: Jeremy Fitzhardinge, xen-devel, linux-kernel On Fri, 2010-12-03 at 09:54 +0000, Ian Campbell wrote: > Xen does not currently expose PV-NUMA information to PV > guests. Therefore disable NUMA for the time being to prevent the > kernel picking up on an host-level NUMA information which it might > come across in the firmware. > > Signed-off-by: Ian Campbell <ian.campbell@citrix.com> > --- > arch/x86/xen/enlighten.c | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) > > diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c > index fbb35cd..7cdf2f3 100644 > --- a/arch/x86/xen/enlighten.c > +++ b/arch/x86/xen/enlighten.c > @@ -1195,6 +1195,10 @@ asmlinkage void __init xen_start_kernel(void) > > xen_smp_init(); > > +#ifdef CONFIG_ACPI_NUMA > + acpi_numa = -1; > +#endif > + > pgd = (pgd_t *)xen_start_info->pt_base; > > __supported_pte_mask |= _PAGE_IOMAP; This made it thru 2.6.32-29 in Debian on 10 dec and works like a charm, Dell R410 properly booting with hypervisor Xen 4.0.1. Thanks a lot for your help and responsiveness. ^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <1291369764.5514.15168.camel@zakaz.uk.xensource.com>
2010-12-03 9:54 ` [PATCH] xen: disable ACPI NUMA for PV guests Ian Campbell
2010-12-13 22:17 ` Vincent Caron
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