On Wed, Jul 19, 2023 at 12:37:47PM +0200, Jan Beulich wrote:
> On 18.07.2023 14:43, Roger Pau Monne wrote:
> > @@ -439,36 +427,47 @@ unsigned int cf_check io_apic_read_remap_rte(
> > }
> >
> > void cf_check io_apic_write_remap_rte(
> > -unsigned int apic, unsigned int reg, unsigned int valu
On 18.07.2023 14:43, Roger Pau Monne wrote:
> So that the remapping entry can be updated atomically when possible.
>
> Doing such update atomically will avoid Xen having to mask the IO-APIC
> pin prior to performing any interrupt movements (ie: changing the
> destination and vector fields), as the
So that the remapping entry can be updated atomically when possible.
Doing such update atomically will avoid Xen having to mask the IO-APIC
pin prior to performing any interrupt movements (ie: changing the
destination and vector fields), as the interrupt remapping entry is
always consistent.
This
