diff options
| -rw-r--r-- | hw/i386/microvm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/hw/i386/microvm.c b/hw/i386/microvm.c index 273abe28c9..17e3f2f152 100644 --- a/hw/i386/microvm.c +++ b/hw/i386/microvm.c @@ -198,6 +198,12 @@ static void microvm_devices_init(MicrovmMachineState *mms) } if (x86_machine_is_acpi_enabled(x86ms) && mms->pcie == ON_OFF_AUTO_ON) { + /* use topmost 25% of the address space available */ + hwaddr phys_size = (hwaddr)1 << X86_CPU(first_cpu)->phys_bits; + if (phys_size > 0x1000000ll) { + mms->gpex.mmio64.size = phys_size / 4; + mms->gpex.mmio64.base = phys_size - mms->gpex.mmio64.size; + } mms->gpex.mmio32.base = PCIE_MMIO_BASE; mms->gpex.mmio32.size = PCIE_MMIO_SIZE; mms->gpex.ecam.base = PCIE_ECAM_BASE; @@ -383,6 +389,9 @@ static void microvm_fix_kernel_cmdline(MachineState *machine) static void microvm_device_pre_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev, Error **errp) { + X86CPU *cpu = X86_CPU(dev); + + cpu->host_phys_bits = true; /* need reliable phys-bits */ x86_cpu_pre_plug(hotplug_dev, dev, errp); } |