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Re: [PATCH] hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
From: |
Graeme Gregory |
Subject: |
Re: [PATCH] hw/arm/sbsa-ref : Fix SMMUv3 Initialisation |
Date: |
Mon, 28 Sep 2020 10:35:50 +0100 |
On Sat, Sep 26, 2020 at 09:45:24AM +0200, Philippe Mathieu-Daudé wrote:
> Hi Gregory,
>
> On 9/25/20 4:00 PM, Auger Eric wrote:
> > Hi Gregory,
> >
> > On 9/25/20 3:39 PM, Graeme Gregory wrote:
> >> SMMUv3 has an error in previous patch where a i was transposed to a 1
> >> meaning interrupts would not have been correctly assigned to the SMMUv3
> >> instance.
>
> This is a first issue, fixing 48ba18e6d3f3.
>
> >>
> >> The code also contained an error in that the IRQs were never allocated
> >> in the irqmap.
>
> This is another issue, not well explained. IIUC IRQs *are* allocated as
> IRQ #0, right?
>
> This fixes commit e9fdf453240 ("hw/arm: Add arm SBSA reference machine,
> devices part"). Can you split this in another patch please? Eventually
> Cc'ing qemu-stable@nongnu.org as suggested by Peter.
>
Ok I will split and issue v2 ASAP
Thanks
Graeme
> >>
> >> Fixes: 48ba18e6d3f3 ("hw/arm/sbsa-ref: Simplify by moving the gic in the
> >> machine state")
> >> Signed-off-by: Graeme Gregory <graeme@nuviainc.com>
> > Reviewed-by: Eric Auger <eric.auger@redhat.com>
> >
> > Thanks
> >
> > Eric
> >
> >> ---
> >> hw/arm/sbsa-ref.c | 3 ++-
> >> 1 file changed, 2 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
> >> index 257ada9425..9109fb58be 100644
> >> --- a/hw/arm/sbsa-ref.c
> >> +++ b/hw/arm/sbsa-ref.c
> >> @@ -138,6 +138,7 @@ static const int sbsa_ref_irqmap[] = {
> >> [SBSA_SECURE_UART_MM] = 9,
> >> [SBSA_AHCI] = 10,
> >> [SBSA_EHCI] = 11,
> >> + [SBSA_SMMU] = 12, /* ... to 15 */
> >> };
> >>
> >> static uint64_t sbsa_ref_cpu_mp_affinity(SBSAMachineState *sms, int idx)
> >> @@ -530,7 +531,7 @@ static void create_smmu(const SBSAMachineState *sms,
> >> PCIBus *bus)
> >> sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base);
> >> for (i = 0; i < NUM_SMMU_IRQS; i++) {
> >> sysbus_connect_irq(SYS_BUS_DEVICE(dev), i,
> >> - qdev_get_gpio_in(sms->gic, irq + 1));
> >> + qdev_get_gpio_in(sms->gic, irq + i));
>
> BTW this fix is already in Peter's queue:
> https://www.mail-archive.com/qemu-devel@nongnu.org/msg732819.html
>
> Thanks,
>
> Phil.
>
> >> }
> >> }
> >>
> >>
> >
>