0ebf007dda
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 <slp@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* Copyright (c) 2018 Intel Corporation
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* Copyright (c) 2019 Red Hat, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_I386_MICROVM_H
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#define HW_I386_MICROVM_H
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#include "qemu-common.h"
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#include "exec/hwaddr.h"
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#include "qemu/notify.h"
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#include "hw/boards.h"
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#include "hw/i386/x86.h"
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/* Platform virtio definitions */
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#define VIRTIO_MMIO_BASE 0xc0000000
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#define VIRTIO_IRQ_BASE 5
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#define VIRTIO_NUM_TRANSPORTS 8
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#define VIRTIO_CMDLINE_MAXLEN 64
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/* Machine type options */
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#define MICROVM_MACHINE_PIT "pit"
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#define MICROVM_MACHINE_PIC "pic"
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#define MICROVM_MACHINE_RTC "rtc"
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#define MICROVM_MACHINE_ISA_SERIAL "isa-serial"
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#define MICROVM_MACHINE_OPTION_ROMS "x-option-roms"
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#define MICROVM_MACHINE_AUTO_KERNEL_CMDLINE "auto-kernel-cmdline"
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typedef struct {
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X86MachineClass parent;
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HotplugHandler *(*orig_hotplug_handler)(MachineState *machine,
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DeviceState *dev);
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} MicrovmMachineClass;
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typedef struct {
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X86MachineState parent;
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/* Machine type options */
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OnOffAuto pic;
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OnOffAuto pit;
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OnOffAuto rtc;
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bool isa_serial;
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bool option_roms;
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bool auto_kernel_cmdline;
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/* Machine state */
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bool kernel_cmdline_fixed;
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} MicrovmMachineState;
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#define TYPE_MICROVM_MACHINE MACHINE_TYPE_NAME("microvm")
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#define MICROVM_MACHINE(obj) \
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OBJECT_CHECK(MicrovmMachineState, (obj), TYPE_MICROVM_MACHINE)
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#define MICROVM_MACHINE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(MicrovmMachineClass, obj, TYPE_MICROVM_MACHINE)
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#define MICROVM_MACHINE_CLASS(class) \
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OBJECT_CLASS_CHECK(MicrovmMachineClass, class, TYPE_MICROVM_MACHINE)
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#endif
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