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authorSergio Lopez <slp@redhat.com>2019-10-02 08:03:19 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2019-10-22 09:39:54 +0200
commit0ebf007ddacf15a4483a4e740bf6c9dd688b5b5a (patch)
treed31bb03da63a1956c04d4db1a27dfaaf39a320ab /include/hw/i386
parente00803aab46c6018b695ee63eef41263c15376d9 (diff)
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 <slp@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw/i386')
-rw-r--r--include/hw/i386/microvm.h71
1 files changed, 71 insertions, 0 deletions
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 <http://www.gnu.org/licenses/>.
+ */
+
+#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