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[v2,2/2] pnv/psi: Initialize the PSIHB interrupts to match hardware

Message ID 20230703081215.55252-3-fbarrat@linux.ibm.com
State New
Headers show
Series Fix PSIHB interrupts init PQ state | expand

Commit Message

Frederic Barrat July 3, 2023, 8:12 a.m. UTC 
On the powernv9 and powernv10 machines, the PSIHB interrupts are
currently initialized with a PQ state of 0b01, i.e. interrupts are
disabled. However real hardware initializes them to 0b00 for the
PSIHB. This patch updates it, in case an hypervisor is in the mood of
checking it.

Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
---
 hw/ppc/pnv_psi.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Cédric Le Goater July 3, 2023, 8:24 a.m. UTC | #1 
On 7/3/23 10:12, Frederic Barrat wrote:
> On the powernv9 and powernv10 machines, the PSIHB interrupts are
> currently initialized with a PQ state of 0b01, i.e. interrupts are
> disabled. However real hardware initializes them to 0b00 for the
> PSIHB. This patch updates it, in case an hypervisor is in the mood of
> checking it.
> 
> Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>


Reviewed-by: Cédric Le Goater <clg@kaod.org>

Thanks,

C.


> ---
>   hw/ppc/pnv_psi.c | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
> index 46da58dff8..daaa2f0575 100644
> --- a/hw/ppc/pnv_psi.c
> +++ b/hw/ppc/pnv_psi.c
> @@ -863,6 +863,8 @@ static void pnv_psi_power9_realize(DeviceState *dev, Error **errp)
>       object_property_set_int(OBJECT(xsrc), "nr-irqs", PSIHB9_NUM_IRQS,
>                               &error_fatal);
>       object_property_set_link(OBJECT(xsrc), "xive", OBJECT(psi), &error_abort);
> +    object_property_set_int(OBJECT(xsrc), "reset-pq", XIVE_ESB_RESET,
> +                            &error_abort);
>       if (!qdev_realize(DEVICE(xsrc), NULL, errp)) {
>           return;
>       }
diff mbox series

Patch

diff --git a/hw/ppc/pnv_psi.c b/hw/ppc/pnv_psi.c
index 46da58dff8..daaa2f0575 100644
--- a/hw/ppc/pnv_psi.c
+++ b/hw/ppc/pnv_psi.c
@@ -863,6 +863,8 @@  static void pnv_psi_power9_realize(DeviceState *dev, Error **errp)
     object_property_set_int(OBJECT(xsrc), "nr-irqs", PSIHB9_NUM_IRQS,
                             &error_fatal);
     object_property_set_link(OBJECT(xsrc), "xive", OBJECT(psi), &error_abort);
+    object_property_set_int(OBJECT(xsrc), "reset-pq", XIVE_ESB_RESET,
+                            &error_abort);
     if (!qdev_realize(DEVICE(xsrc), NULL, errp)) {
         return;
     }