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Re: [PATCH 1/2] hw/i386/microvm-dt: Determine mc146818rtc's IRQ number f


From: Bernhard Beschow
Subject: Re: [PATCH 1/2] hw/i386/microvm-dt: Determine mc146818rtc's IRQ number from QOM property
Date: Sun, 22 May 2022 10:56:06 +0200

On Sat, May 21, 2022 at 11:20 AM Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> wrote:
On 20/05/2022 18:45, Bernhard Beschow wrote:

> Since commit 3b004a16540aa41f2aa6a1ceb0bf306716766914 'hw/rtc/
> mc146818rtc: QOM'ify IRQ number' mc146818rtc's IRQ number is
> configurable. Fix microvm-dt to respect its value.
>
> Signed-off-by: Bernhard Beschow <shentey@gmail.com>
> ---
>   hw/i386/microvm-dt.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/i386/microvm-dt.c b/hw/i386/microvm-dt.c
> index 9c3c4995b4..a5db9e4e5a 100644
> --- a/hw/i386/microvm-dt.c
> +++ b/hw/i386/microvm-dt.c
> @@ -208,7 +208,7 @@ static void dt_add_isa_serial(MicrovmMachineState *mms, ISADevice *dev)
>   static void dt_add_isa_rtc(MicrovmMachineState *mms, ISADevice *dev)
>   {
>       const char compat[] = "motorola,mc146818";
> -    uint32_t irq = RTC_ISA_IRQ;
> +    uint32_t irq = object_property_get_uint(OBJECT(dev), "irq", NULL);
>       hwaddr base = RTC_ISA_BASE;
>       hwaddr size = 8;
>       char *nodename;

Rather than using NULL as the last parameter to object_property_get_uint() I think
using &error_abort to force an explicit failure if the irq property doesn't exist
would be better.

Ack. I'll then also fix dt_add_isa_serial() in a dedicated commit for consistency.

Otherwise:

Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>


ATB,

Mark.

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