Re: [Xen-devel] Query: Boot time allocation of irq descriptors

2015-02-11 Thread Jan Beulich
>>> On 11.02.15 at 16:03, wrote: > On Wed, Feb 11, 2015 at 8:25 PM, Andrew Cooper > wrote: >> On 11/02/15 14:50, Vijay Kilari wrote: >>> Hi , >>> >>> I just glaced at the x86 code, here nr_irqs are set to 1024, which > includes >>> normal irq's and MSI's. Memory for these descriptors are alloc

Re: [Xen-devel] Query: Boot time allocation of irq descriptors

2015-02-11 Thread Jan Beulich
>>> On 11.02.15 at 15:50, wrote: > I just glaced at the x86 code, here nr_irqs are set to 1024, which > includes > normal irq's and MSI's. Memory for these descriptors are allocated at boot > time. > is it correct? > > int __init init_irq_data(void) > { > > ... > for (vector = 0; vector

Re: [Xen-devel] Query: Boot time allocation of irq descriptors

2015-02-11 Thread Vijay Kilari
On Wed, Feb 11, 2015 at 8:25 PM, Andrew Cooper wrote: > On 11/02/15 14:50, Vijay Kilari wrote: >> Hi , >> >> I just glaced at the x86 code, here nr_irqs are set to 1024, which includes >> normal irq's and MSI's. Memory for these descriptors are allocated at boot >> time. >> is it correct? >> >>

Re: [Xen-devel] Query: Boot time allocation of irq descriptors

2015-02-11 Thread Andrew Cooper
On 11/02/15 14:50, Vijay Kilari wrote: > Hi , > > I just glaced at the x86 code, here nr_irqs are set to 1024, which includes > normal irq's and MSI's. Memory for these descriptors are allocated at boot > time. > is it correct? > > int __init init_irq_data(void) > { > > ... > for (vector = 0

[Xen-devel] Query: Boot time allocation of irq descriptors

2015-02-11 Thread Vijay Kilari
Hi , I just glaced at the x86 code, here nr_irqs are set to 1024, which includes normal irq's and MSI's. Memory for these descriptors are allocated at boot time. is it correct? int __init init_irq_data(void) { ... for (vector = 0; vector < NR_VECTORS; ++vector) this_cpu(vector_irq)