* [PATCH v2] ppc/pnv: I2C controller is not user creatable
@ 2024-03-18 15:58 Cédric Le Goater
2024-03-18 16:39 ` Philippe Mathieu-Daudé
2024-03-18 18:16 ` Miles Glenn
0 siblings, 2 replies; 3+ messages in thread
From: Cédric Le Goater @ 2024-03-18 15:58 UTC (permalink / raw)
To: qemu-devel
Cc: qemu-ppc, Nicholas Piggin, Cédric Le Goater, Glenn Miles,
Thomas Huth
The I2C controller is a subunit of the processor. Make it so and avoid
QEMU crashes.
$ build/qemu-system-ppc64 -S -machine powernv9 -device pnv-i2c
qemu-system-ppc64: ../hw/ppc/pnv_i2c.c:521: pnv_i2c_realize: Assertion `i2c->chip' failed.
Aborted (core dumped)
Fixes: 263b81ee15af ("ppc/pnv: Add an I2C controller model")
Cc: Glenn Miles <milesg@linux.vnet.ibm.com>
Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
hw/ppc/pnv_i2c.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/hw/ppc/pnv_i2c.c b/hw/ppc/pnv_i2c.c
index 4581cc5e5d4645ab3e358d983a633e33a214c425..eec5047ce83f842108b53a6e2bd9869a81f14ac1 100644
--- a/hw/ppc/pnv_i2c.c
+++ b/hw/ppc/pnv_i2c.c
@@ -557,6 +557,9 @@ static void pnv_i2c_class_init(ObjectClass *klass, void *data)
xscomc->dt_xscom = pnv_i2c_dt_xscom;
+ /* Reason: This device is part of the CPU and cannot be used separately */
+ dc->user_creatable = false;
+
dc->desc = "PowerNV I2C";
dc->realize = pnv_i2c_realize;
device_class_set_props(dc, pnv_i2c_properties);
--
2.44.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH v2] ppc/pnv: I2C controller is not user creatable
2024-03-18 15:58 [PATCH v2] ppc/pnv: I2C controller is not user creatable Cédric Le Goater
@ 2024-03-18 16:39 ` Philippe Mathieu-Daudé
2024-03-18 18:16 ` Miles Glenn
1 sibling, 0 replies; 3+ messages in thread
From: Philippe Mathieu-Daudé @ 2024-03-18 16:39 UTC (permalink / raw)
To: Cédric Le Goater, qemu-devel
Cc: qemu-ppc, Nicholas Piggin, Glenn Miles, Thomas Huth
On 18/3/24 16:58, Cédric Le Goater wrote:
> The I2C controller is a subunit of the processor. Make it so and avoid
> QEMU crashes.
>
> $ build/qemu-system-ppc64 -S -machine powernv9 -device pnv-i2c
> qemu-system-ppc64: ../hw/ppc/pnv_i2c.c:521: pnv_i2c_realize: Assertion `i2c->chip' failed.
> Aborted (core dumped)
>
> Fixes: 263b81ee15af ("ppc/pnv: Add an I2C controller model")
> Cc: Glenn Miles <milesg@linux.vnet.ibm.com>
> Reported-by: Thomas Huth <thuth@redhat.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Signed-off-by: Cédric Le Goater <clg@redhat.com>
> ---
> hw/ppc/pnv_i2c.c | 3 +++
> 1 file changed, 3 insertions(+)
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH v2] ppc/pnv: I2C controller is not user creatable
2024-03-18 15:58 [PATCH v2] ppc/pnv: I2C controller is not user creatable Cédric Le Goater
2024-03-18 16:39 ` Philippe Mathieu-Daudé
@ 2024-03-18 18:16 ` Miles Glenn
1 sibling, 0 replies; 3+ messages in thread
From: Miles Glenn @ 2024-03-18 18:16 UTC (permalink / raw)
To: Cédric Le Goater, qemu-devel; +Cc: qemu-ppc, Nicholas Piggin, Thomas Huth
On Mon, 2024-03-18 at 16:58 +0100, Cédric Le Goater wrote:
Thanks for fixing that!
-Glenn
Reviewed-by: Glenn Miles <milesg@linux.vnet.ibm.com>
> The I2C controller is a subunit of the processor. Make it so and
> avoid
> QEMU crashes.
>
> $ build/qemu-system-ppc64 -S -machine powernv9 -device pnv-i2c
> qemu-system-ppc64: ../hw/ppc/pnv_i2c.c:521: pnv_i2c_realize:
> Assertion `i2c->chip' failed.
> Aborted (core dumped)
>
> Fixes: 263b81ee15af ("ppc/pnv: Add an I2C controller model")
> Cc: Glenn Miles <milesg@linux.vnet.ibm.com>
> Reported-by: Thomas Huth <thuth@redhat.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> Signed-off-by: Cédric Le Goater <clg@redhat.com>
> ---
> hw/ppc/pnv_i2c.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/hw/ppc/pnv_i2c.c b/hw/ppc/pnv_i2c.c
> index
> 4581cc5e5d4645ab3e358d983a633e33a214c425..eec5047ce83f842108b53a6e2bd
> 9869a81f14ac1 100644
> --- a/hw/ppc/pnv_i2c.c
> +++ b/hw/ppc/pnv_i2c.c
> @@ -557,6 +557,9 @@ static void pnv_i2c_class_init(ObjectClass
> *klass, void *data)
>
> xscomc->dt_xscom = pnv_i2c_dt_xscom;
>
> + /* Reason: This device is part of the CPU and cannot be used
> separately */
> + dc->user_creatable = false;
> +
> dc->desc = "PowerNV I2C";
> dc->realize = pnv_i2c_realize;
> device_class_set_props(dc, pnv_i2c_properties);
^ permalink raw reply [flat|nested] 3+ messages in thread
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2024-03-18 15:58 [PATCH v2] ppc/pnv: I2C controller is not user creatable Cédric Le Goater
2024-03-18 16:39 ` Philippe Mathieu-Daudé
2024-03-18 18:16 ` Miles Glenn
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