* [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic
@ 2023-09-05 14:56 Philippe Mathieu-Daudé
2023-09-05 17:20 ` Richard Henderson
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Philippe Mathieu-Daudé @ 2023-09-05 14:56 UTC (permalink / raw)
To: qemu-devel; +Cc: Peter Maydell, qemu-arm, Philippe Mathieu-Daudé
Simplify gicv3_class_name() logic. No functional change intended.
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
hw/intc/arm_gicv3_common.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c
index 2ebf880ead..8863f06b67 100644
--- a/hw/intc/arm_gicv3_common.c
+++ b/hw/intc/arm_gicv3_common.c
@@ -612,13 +612,12 @@ type_init(register_types)
const char *gicv3_class_name(void)
{
- if (kvm_irqchip_in_kernel()) {
- return "kvm-arm-gicv3";
- } else {
- if (kvm_enabled()) {
+ if (kvm_enabled()) {
+ if (!kvm_irqchip_in_kernel()) {
error_report("Userspace GICv3 is not supported with KVM");
exit(1);
}
- return "arm-gicv3";
+ return "kvm-arm-gicv3";
}
+ return "arm-gicv3";
}
--
2.41.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic
2023-09-05 14:56 [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic Philippe Mathieu-Daudé
@ 2023-09-05 17:20 ` Richard Henderson
2023-09-06 8:40 ` Francisco Iglesias
2023-09-08 12:16 ` Peter Maydell
2 siblings, 0 replies; 4+ messages in thread
From: Richard Henderson @ 2023-09-05 17:20 UTC (permalink / raw)
To: Philippe Mathieu-Daudé, qemu-devel; +Cc: Peter Maydell, qemu-arm
On 9/5/23 07:56, Philippe Mathieu-Daudé wrote:
> Simplify gicv3_class_name() logic. No functional change intended.
>
> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
> ---
> hw/intc/arm_gicv3_common.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic
2023-09-05 14:56 [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic Philippe Mathieu-Daudé
2023-09-05 17:20 ` Richard Henderson
@ 2023-09-06 8:40 ` Francisco Iglesias
2023-09-08 12:16 ` Peter Maydell
2 siblings, 0 replies; 4+ messages in thread
From: Francisco Iglesias @ 2023-09-06 8:40 UTC (permalink / raw)
To: Philippe Mathieu-Daudé; +Cc: qemu-devel, Peter Maydell, qemu-arm
On [2023 Sep 05] Tue 16:56:51, Philippe Mathieu-Daudé wrote:
> Simplify gicv3_class_name() logic. No functional change intended.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com>
> ---
> hw/intc/arm_gicv3_common.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c
> index 2ebf880ead..8863f06b67 100644
> --- a/hw/intc/arm_gicv3_common.c
> +++ b/hw/intc/arm_gicv3_common.c
> @@ -612,13 +612,12 @@ type_init(register_types)
>
> const char *gicv3_class_name(void)
> {
> - if (kvm_irqchip_in_kernel()) {
> - return "kvm-arm-gicv3";
> - } else {
> - if (kvm_enabled()) {
> + if (kvm_enabled()) {
> + if (!kvm_irqchip_in_kernel()) {
> error_report("Userspace GICv3 is not supported with KVM");
> exit(1);
> }
> - return "arm-gicv3";
> + return "kvm-arm-gicv3";
> }
> + return "arm-gicv3";
> }
> --
> 2.41.0
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic
2023-09-05 14:56 [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic Philippe Mathieu-Daudé
2023-09-05 17:20 ` Richard Henderson
2023-09-06 8:40 ` Francisco Iglesias
@ 2023-09-08 12:16 ` Peter Maydell
2 siblings, 0 replies; 4+ messages in thread
From: Peter Maydell @ 2023-09-08 12:16 UTC (permalink / raw)
To: Philippe Mathieu-Daudé; +Cc: qemu-devel, qemu-arm
On Tue, 5 Sept 2023 at 15:56, Philippe Mathieu-Daudé <philmd@linaro.org> wrote:
>
> Simplify gicv3_class_name() logic. No functional change intended.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
> hw/intc/arm_gicv3_common.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c
> index 2ebf880ead..8863f06b67 100644
> --- a/hw/intc/arm_gicv3_common.c
> +++ b/hw/intc/arm_gicv3_common.c
> @@ -612,13 +612,12 @@ type_init(register_types)
>
> const char *gicv3_class_name(void)
> {
> - if (kvm_irqchip_in_kernel()) {
> - return "kvm-arm-gicv3";
> - } else {
> - if (kvm_enabled()) {
> + if (kvm_enabled()) {
> + if (!kvm_irqchip_in_kernel()) {
> error_report("Userspace GICv3 is not supported with KVM");
> exit(1);
> }
> - return "arm-gicv3";
> + return "kvm-arm-gicv3";
> }
> + return "arm-gicv3";
> }
This doesn't seem to me to be obviously clearer or
simpler than the current code, which is the same basic
logic as the GICv2 gic_class_name(), but with the extra
condition of "report the error for the case we don't
support yet". In particular the major condition for
"should we be using kvm-arm-gicv3" is not "are we
using KVM?" but "are we using the KVM in-kernel irqchip?".
thanks
-- PMM
^ permalink raw reply [flat|nested] 4+ messages in thread
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2023-09-05 14:56 [PATCH] hw/intc/arm_gicv3: Simplify gicv3_class_name() logic Philippe Mathieu-Daudé
2023-09-05 17:20 ` Richard Henderson
2023-09-06 8:40 ` Francisco Iglesias
2023-09-08 12:16 ` Peter Maydell
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