From 0ebf007ddacf15a4483a4e740bf6c9dd688b5b5a Mon Sep 17 00:00:00 2001 From: Sergio Lopez Date: Wed, 2 Oct 2019 08:03:19 +0200 Subject: hw/i386: Introduce the microvm machine type microvm is a machine type inspired by Firecracker and constructed after its machine model. It's a minimalist machine type without PCI nor ACPI support, designed for short-lived guests. microvm also establishes a baseline for benchmarking and optimizing both QEMU and guest operating systems, since it is optimized for both boot time and footprint. Signed-off-by: Sergio Lopez Reviewed-by: Michael S. Tsirkin --- include/hw/i386/microvm.h | 71 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 include/hw/i386/microvm.h (limited to 'include') diff --git a/include/hw/i386/microvm.h b/include/hw/i386/microvm.h new file mode 100644 index 0000000000..ba68d1f22b --- /dev/null +++ b/include/hw/i386/microvm.h @@ -0,0 +1,71 @@ +/* + * Copyright (c) 2018 Intel Corporation + * Copyright (c) 2019 Red Hat, Inc. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2 or later, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see . + */ + +#ifndef HW_I386_MICROVM_H +#define HW_I386_MICROVM_H + +#include "qemu-common.h" +#include "exec/hwaddr.h" +#include "qemu/notify.h" + +#include "hw/boards.h" +#include "hw/i386/x86.h" + +/* Platform virtio definitions */ +#define VIRTIO_MMIO_BASE 0xc0000000 +#define VIRTIO_IRQ_BASE 5 +#define VIRTIO_NUM_TRANSPORTS 8 +#define VIRTIO_CMDLINE_MAXLEN 64 + +/* Machine type options */ +#define MICROVM_MACHINE_PIT "pit" +#define MICROVM_MACHINE_PIC "pic" +#define MICROVM_MACHINE_RTC "rtc" +#define MICROVM_MACHINE_ISA_SERIAL "isa-serial" +#define MICROVM_MACHINE_OPTION_ROMS "x-option-roms" +#define MICROVM_MACHINE_AUTO_KERNEL_CMDLINE "auto-kernel-cmdline" + +typedef struct { + X86MachineClass parent; + HotplugHandler *(*orig_hotplug_handler)(MachineState *machine, + DeviceState *dev); +} MicrovmMachineClass; + +typedef struct { + X86MachineState parent; + + /* Machine type options */ + OnOffAuto pic; + OnOffAuto pit; + OnOffAuto rtc; + bool isa_serial; + bool option_roms; + bool auto_kernel_cmdline; + + /* Machine state */ + bool kernel_cmdline_fixed; +} MicrovmMachineState; + +#define TYPE_MICROVM_MACHINE MACHINE_TYPE_NAME("microvm") +#define MICROVM_MACHINE(obj) \ + OBJECT_CHECK(MicrovmMachineState, (obj), TYPE_MICROVM_MACHINE) +#define MICROVM_MACHINE_GET_CLASS(obj) \ + OBJECT_GET_CLASS(MicrovmMachineClass, obj, TYPE_MICROVM_MACHINE) +#define MICROVM_MACHINE_CLASS(class) \ + OBJECT_CLASS_CHECK(MicrovmMachineClass, class, TYPE_MICROVM_MACHINE) + +#endif -- cgit v1.2.3-55-g7522