On Sun, 11 Jun 2023 12:34:00 +0200 Bernhard Beschow <shen...@gmail.com> wrote:
> The Q35 PCI host currently sets the PC machine's PCI bus attribute > through global state, thereby assuming the machine to be a PC machine. > The Q35 machine code already holds on to Q35's pci bus attribute, so can > easily set its own property while preserving encapsulation. > > Signed-off-by: Bernhard Beschow <shen...@gmail.com> Reviewed-by: Igor Mammedov <imamm...@redhat.com> > --- > hw/i386/pc_q35.c | 4 +++- > hw/pci-host/q35.c | 1 - > 2 files changed, 3 insertions(+), 2 deletions(-) > > diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c > index 62c5d652b7..29b46d3e1c 100644 > --- a/hw/i386/pc_q35.c > +++ b/hw/i386/pc_q35.c > @@ -230,10 +230,12 @@ static void pc_q35_init(MachineState *machine) > x86ms->below_4g_mem_size, NULL); > object_property_set_int(phb, PCI_HOST_ABOVE_4G_MEM_SIZE, > x86ms->above_4g_mem_size, NULL); > + sysbus_realize_and_unref(SYS_BUS_DEVICE(phb), &error_fatal); > > /* pci */ > - sysbus_realize_and_unref(SYS_BUS_DEVICE(phb), &error_fatal); > host_bus = PCI_BUS(qdev_get_child_bus(DEVICE(phb), "pcie.0")); > + pcms->bus = host_bus; > + > /* create ISA bus */ > lpc = pci_new_multifunction(PCI_DEVFN(ICH9_LPC_DEV, ICH9_LPC_FUNC), true, > TYPE_ICH9_LPC_DEVICE); > diff --git a/hw/pci-host/q35.c b/hw/pci-host/q35.c > index 859c197f25..23b689dba3 100644 > --- a/hw/pci-host/q35.c > +++ b/hw/pci-host/q35.c > @@ -66,7 +66,6 @@ static void q35_host_realize(DeviceState *dev, Error **errp) > s->mch.pci_address_space, > s->mch.address_space_io, > 0, TYPE_PCIE_BUS); > - PC_MACHINE(qdev_get_machine())->bus = pci->bus; > pci->bypass_iommu = > PC_MACHINE(qdev_get_machine())->default_bus_bypass_iommu; > qdev_realize(DEVICE(&s->mch), BUS(pci->bus), &error_fatal);