Re: [Qemu-devel] [PATCH for 3.1] x86: Add 3.1 machine types

[Dr. David Alan Gilbert]

* Marc-André Lureau (address@hidden) wrote:
> On Thu, Nov 15, 2018 at 7:47 PM Dr. David Alan Gilbert (git)
> <address@hidden> wrote:
> >
> > From: "Dr. David Alan Gilbert" <address@hidden>
> >
> > x86 doesn't need a 3.1 machine type, because there's no incompatibility,
> > but it looks odd not having one, especially since s390, ppc and ARM have
> > it.  Join the party.
> >
> > Signed-off-by: Dr. David Alan Gilbert <address@hidden>
> > Suggested-by: Peter Maydell <address@hidden>
> 
> I sent same patch already reviewed by Michael a few weeks ago:
> https://lists.nongnu.org/archive/html/qemu-devel/2018-10/msg06574.html

OK, the problem is it's buried in the middle of a big series; can we
just take either this version or your version for 3.1?

> > ---
> >  hw/i386/pc_piix.c    | 15 ++++++++++++---
> >  hw/i386/pc_q35.c     | 13 +++++++++++--
> >  include/hw/i386/pc.h |  3 +++
> >  3 files changed, 26 insertions(+), 5 deletions(-)
> >
> > diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
> > index dc09466b3e..7092d6d13f 100644
> > --- a/hw/i386/pc_piix.c
> > +++ b/hw/i386/pc_piix.c
> > @@ -428,21 +428,30 @@ static void pc_i440fx_machine_options(MachineClass *m)
> >      machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
> >  }
> >
> > -static void pc_i440fx_3_0_machine_options(MachineClass *m)
> > +static void pc_i440fx_3_1_machine_options(MachineClass *m)
> >  {
> >      pc_i440fx_machine_options(m);
> >      m->alias = "pc";
> >      m->is_default = 1;
> >  }
> >
> > +DEFINE_I440FX_MACHINE(v3_1, "pc-i440fx-3.1", NULL,
> > +                      pc_i440fx_3_1_machine_options);
> > +
> > +static void pc_i440fx_3_0_machine_options(MachineClass *m)
> > +{
> > +    pc_i440fx_3_1_machine_options(m);
> > +    m->is_default = 0;
> > +    m->alias = NULL;
> > +    SET_MACHINE_COMPAT(m, PC_COMPAT_3_0);
> > +}
> > +
> >  DEFINE_I440FX_MACHINE(v3_0, "pc-i440fx-3.0", NULL,
> >                        pc_i440fx_3_0_machine_options);
> >
> >  static void pc_i440fx_2_12_machine_options(MachineClass *m)
> >  {
> >      pc_i440fx_3_0_machine_options(m);
> > -    m->is_default = 0;
> > -    m->alias = NULL;
> >      SET_MACHINE_COMPAT(m, PC_COMPAT_2_12);
> >  }
> >
> > diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
> > index 532241e3f8..6799b3e553 100644
> > --- a/hw/i386/pc_q35.c
> > +++ b/hw/i386/pc_q35.c
> > @@ -311,19 +311,28 @@ static void pc_q35_machine_options(MachineClass *m)
> >      m->max_cpus = 288;
> >  }
> >
> > -static void pc_q35_3_0_machine_options(MachineClass *m)
> > +static void pc_q35_3_1_machine_options(MachineClass *m)
> >  {
> >      pc_q35_machine_options(m);
> >      m->alias = "q35";
> >  }
> >
> > +DEFINE_Q35_MACHINE(v3_1, "pc-q35-3.1", NULL,
> > +                    pc_q35_3_1_machine_options);
> > +
> > +static void pc_q35_3_0_machine_options(MachineClass *m)
> > +{
> > +    pc_q35_3_1_machine_options(m);
> > +    m->alias = NULL;
> > +    SET_MACHINE_COMPAT(m, PC_COMPAT_3_0);
> > +}
> > +
> >  DEFINE_Q35_MACHINE(v3_0, "pc-q35-3.0", NULL,
> >                      pc_q35_3_0_machine_options);
> >
> >  static void pc_q35_2_12_machine_options(MachineClass *m)
> >  {
> >      pc_q35_3_0_machine_options(m);
> > -    m->alias = NULL;
> >      SET_MACHINE_COMPAT(m, PC_COMPAT_2_12);
> >  }
> >
> > diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
> > index 136fe497b6..c37d4333a0 100644
> > --- a/include/hw/i386/pc.h
> > +++ b/include/hw/i386/pc.h
> > @@ -294,6 +294,9 @@ int e820_add_entry(uint64_t, uint64_t, uint32_t);
> >  int e820_get_num_entries(void);
> >  bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *);
> >
> > +#define PC_COMPAT_3_1 \
> > +    HW_COMPAT_3_1
> 
> you shouldn't need that, right?

Oops, true, that's for next time around.

Dave

> > +
> >  #define PC_COMPAT_3_0 \
> >      HW_COMPAT_3_0 \
> >      {\
> > --
> > 2.19.1
> >
> >
> 
> 
> -- 
> Marc-André Lureau
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK