On 2018-03-15 16:19:17 [+0100], Joerg Roedel wrote:
> Okay, if the irq-layer does the needed locking, then we don't need
> another lock here. There is the modify_irte_ga() path for the
> virtualized irq routing into KVM guests, but there should be no KVM
> guests running when setup the ioapic routi
On Thu, Mar 15, 2018 at 03:15:41PM +0100, Sebastian Andrzej Siewior wrote:
> ->set_allocated() operates only on 0…31 and other could be used at the
> same time. However 0…31 should be accessed by other user before they are
> ready.
>
> irq_remapping_alloc() is that ->alloc() callback invoked via
>
On 2018-03-15 14:07:23 [+0100], Joerg Roedel wrote:
> On Thu, Mar 15, 2018 at 02:01:53PM +0100, Sebastian Andrzej Siewior wrote:
> > On 2018-03-15 13:53:42 [+0100], Joerg Roedel wrote:
> > > On Fri, Feb 23, 2018 at 11:27:31PM +0100, Sebastian Andrzej Siewior wrote:
> > > > @@ -4103,10 +4093,26 @@ s
On Thu, Mar 15, 2018 at 02:01:53PM +0100, Sebastian Andrzej Siewior wrote:
> On 2018-03-15 13:53:42 [+0100], Joerg Roedel wrote:
> > On Fri, Feb 23, 2018 at 11:27:31PM +0100, Sebastian Andrzej Siewior wrote:
> > > @@ -4103,10 +4093,26 @@ static int irq_remapping_alloc(struct irq_domain
> > > *doma
On 2018-03-15 13:53:42 [+0100], Joerg Roedel wrote:
> On Fri, Feb 23, 2018 at 11:27:31PM +0100, Sebastian Andrzej Siewior wrote:
> > @@ -4103,10 +4093,26 @@ static int irq_remapping_alloc(struct irq_domain
> > *domain, unsigned int virq,
> > return ret;
> >
> > if (info->type ==
On Fri, Feb 23, 2018 at 11:27:31PM +0100, Sebastian Andrzej Siewior wrote:
> @@ -4103,10 +4093,26 @@ static int irq_remapping_alloc(struct irq_domain
> *domain, unsigned int virq,
> return ret;
>
> if (info->type == X86_IRQ_ALLOC_TYPE_IOAPIC) {
> - if (get_irq_tab
get_irq_table() has a special ioapic argument. If set then it will
pre-allocate / reserve the first 32 indexes. The argument is only once
true and it would make get_irq_table() a little simpler if we would
extract the special bits to the caller.
Signed-off-by: Sebastian Andrzej Siewior
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