Re: [PATCH v3 07/12] hw/arm/virt: Move post cpu realize check into its own function

[Andrew Jones]

On Tue, Sep 15, 2020 at 03:03:49PM +0800, Haibo Xu wrote:
> On Tue, 15 Sep 2020 at 14:22, Andrew Jones <drjones@redhat.com> wrote:
> >
> > On Tue, Sep 15, 2020 at 03:11:43AM +0000, Haibo Xu wrote:
> > > From: Andrew Jones <drjones@redhat.com>
> > >
> > > We'll add more to this new function in coming patches so we also
> > > state the gic must be created and call it below create_gic().
> > >
> > > No functional change intended.
> > >
> > > Signed-off-by: Andrew Jones <drjones@redhat.com>
> > > Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
> > > ---
> > >  hw/arm/virt.c | 38 ++++++++++++++++++++++----------------
> > >  1 file changed, 22 insertions(+), 16 deletions(-)
> >
> > This still isn't the right version of this patch. You need
> > https://www.mail-archive.com/qemu-devel@nongnu.org/msg727591.html
> >
> 
> My fault! Very sorry for forgetting to address that in this version.
> Shall I re-send this patch with the fix? Or fix it in the next version?

I can wait. It'll be awhile before this series can be merged anyway, since
the KVM patches haven't been merged yet.

Thanks,
drew

> 
> > >
> > > diff --git a/hw/arm/virt.c b/hw/arm/virt.c
> > > index 3f6d26c531..2ffcb073af 100644
> > > --- a/hw/arm/virt.c
> > > +++ b/hw/arm/virt.c
> > > @@ -1672,6 +1672,26 @@ static void finalize_gic_version(VirtMachineState 
> > > *vms)
> > >      }
> > >  }
> > >
> > > +static void virt_cpu_post_init(VirtMachineState *vms)
> > > +{
> > > +    bool aarch64;
> > > +
> > > +    aarch64 = object_property_get_bool(OBJECT(first_cpu), "aarch64", 
> > > NULL);
> > > +
> > > +    if (!kvm_enabled()) {
> > > +        if (aarch64 && vms->highmem) {
> > > +            int requested_pa_size = 64 - clz64(vms->highest_gpa);
> > > +            int pamax = arm_pamax(ARM_CPU(first_cpu));
> > > +
> > > +            if (pamax < requested_pa_size) {
> > > +                error_report("VCPU supports less PA bits (%d) than 
> > > requested "
> > > +                            "by the memory map (%d)", pamax, 
> > > requested_pa_size);
> > > +                exit(1);
> > > +            }
> > > +        }
> > > +     }
> > > +}
> > > +
> > >  static void machvirt_init(MachineState *machine)
> > >  {
> > >      VirtMachineState *vms = VIRT_MACHINE(machine);
> > > @@ -1890,22 +1910,6 @@ static void machvirt_init(MachineState *machine)
> > >      fdt_add_timer_nodes(vms);
> > >      fdt_add_cpu_nodes(vms);
> > >
> > > -   if (!kvm_enabled()) {
> > > -        ARMCPU *cpu = ARM_CPU(first_cpu);
> > > -        bool aarch64 = object_property_get_bool(OBJECT(cpu), "aarch64", 
> > > NULL);
> > > -
> > > -        if (aarch64 && vms->highmem) {
> > > -            int requested_pa_size, pamax = arm_pamax(cpu);
> > > -
> > > -            requested_pa_size = 64 - clz64(vms->highest_gpa);
> > > -            if (pamax < requested_pa_size) {
> > > -                error_report("VCPU supports less PA bits (%d) than 
> > > requested "
> > > -                            "by the memory map (%d)", pamax, 
> > > requested_pa_size);
> > > -                exit(1);
> > > -            }
> > > -        }
> > > -    }
> > > -
> > >      memory_region_add_subregion(sysmem, vms->memmap[VIRT_MEM].base,
> > >                                  machine->ram);
> > >      if (machine->device_memory) {
> > > @@ -1917,6 +1921,8 @@ static void machvirt_init(MachineState *machine)
> > >
> > >      create_gic(vms);
> > >
> > > +    virt_cpu_post_init(vms);
> > > +
> > >      fdt_add_pmu_nodes(vms);
> > >
> > >      create_uart(vms, VIRT_UART, sysmem, serial_hd(0));
> > > --
> > > 2.17.1
> > >
> > >
> >
>