xref: /openbmc/qemu/include/hw/i386/microvm.h (revision 74b97760)
1 /*
2  * Copyright (c) 2018 Intel Corporation
3  * Copyright (c) 2019 Red Hat, Inc.
4  *
5  * This program is free software; you can redistribute it and/or modify it
6  * under the terms and conditions of the GNU General Public License,
7  * version 2 or later, as published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
12  * more details.
13  *
14  * You should have received a copy of the GNU General Public License along with
15  * this program.  If not, see <http://www.gnu.org/licenses/>.
16  */
17 
18 #ifndef HW_I386_MICROVM_H
19 #define HW_I386_MICROVM_H
20 
21 #include "qemu-common.h"
22 #include "exec/hwaddr.h"
23 #include "qemu/notify.h"
24 
25 #include "hw/boards.h"
26 #include "hw/i386/x86.h"
27 #include "hw/acpi/acpi_dev_interface.h"
28 #include "hw/pci-host/gpex.h"
29 #include "qom/object.h"
30 
31 /*
32  *  IRQ    |  pc        | microvm (acpi=on)
33  * --------+------------+------------------
34  *   0     |  pit       |
35  *   1     |  kbd       |
36  *   2     |  cascade   |
37  *   3     |  serial 1  |
38  *   4     |  serial 0  | serial
39  *   5     |  -         |
40  *   6     |  floppy    |
41  *   7     |  parallel  |
42  *   8     |  rtc       | rtc (rtc=on)
43  *   9     |  acpi      | acpi (ged)
44  *  10     |  pci lnk   | xhci (usb=on)
45  *  11     |  pci lnk   |
46  *  12     |  ps2       | pcie
47  *  13     |  fpu       | pcie
48  *  14     |  ide 0     | pcie
49  *  15     |  ide 1     | pcie
50  *  16-23  |  pci gsi   | virtio
51  */
52 
53 /* Platform virtio definitions */
54 #define VIRTIO_MMIO_BASE      0xfeb00000
55 #define VIRTIO_CMDLINE_MAXLEN 64
56 
57 #define GED_MMIO_BASE         0xfea00000
58 #define GED_MMIO_BASE_MEMHP   (GED_MMIO_BASE + 0x100)
59 #define GED_MMIO_BASE_REGS    (GED_MMIO_BASE + 0x200)
60 #define GED_MMIO_IRQ          9
61 
62 #define MICROVM_XHCI_BASE     0xfe900000
63 #define MICROVM_XHCI_IRQ      10
64 
65 #define PCIE_MMIO_BASE        0xc0000000
66 #define PCIE_MMIO_SIZE        0x20000000
67 #define PCIE_ECAM_BASE        0xe0000000
68 #define PCIE_ECAM_SIZE        0x10000000
69 
70 /* Machine type options */
71 #define MICROVM_MACHINE_PIT                 "pit"
72 #define MICROVM_MACHINE_PIC                 "pic"
73 #define MICROVM_MACHINE_RTC                 "rtc"
74 #define MICROVM_MACHINE_PCIE                "pcie"
75 #define MICROVM_MACHINE_IOAPIC2             "ioapic2"
76 #define MICROVM_MACHINE_ISA_SERIAL          "isa-serial"
77 #define MICROVM_MACHINE_OPTION_ROMS         "x-option-roms"
78 #define MICROVM_MACHINE_AUTO_KERNEL_CMDLINE "auto-kernel-cmdline"
79 
80 struct MicrovmMachineClass {
81     X86MachineClass parent;
82     HotplugHandler *(*orig_hotplug_handler)(MachineState *machine,
83                                            DeviceState *dev);
84 };
85 
86 struct MicrovmMachineState {
87     X86MachineState parent;
88 
89     /* Machine type options */
90     OnOffAuto pic;
91     OnOffAuto pit;
92     OnOffAuto rtc;
93     OnOffAuto pcie;
94     OnOffAuto ioapic2;
95     bool isa_serial;
96     bool option_roms;
97     bool auto_kernel_cmdline;
98 
99     /* Machine state */
100     uint32_t pcie_irq_base;
101     uint32_t virtio_irq_base;
102     uint32_t virtio_num_transports;
103     bool kernel_cmdline_fixed;
104     Notifier machine_done;
105     Notifier powerdown_req;
106     struct GPEXConfig gpex;
107 };
108 
109 #define TYPE_MICROVM_MACHINE   MACHINE_TYPE_NAME("microvm")
110 OBJECT_DECLARE_TYPE(MicrovmMachineState, MicrovmMachineClass, MICROVM_MACHINE)
111 
112 #endif
113