xref: /openbmc/qemu/include/hw/i386/microvm.h (revision 4ea5fe99)
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 "exec/hwaddr.h"
22 #include "qemu/notify.h"
23 
24 #include "hw/boards.h"
25 #include "hw/i386/x86.h"
26 #include "hw/acpi/acpi_dev_interface.h"
27 #include "hw/pci-host/gpex.h"
28 #include "qom/object.h"
29 
30 /*
31  *  IRQ    |  pc        | microvm (acpi=on)
32  * --------+------------+------------------
33  *   0     |  pit       |
34  *   1     |  kbd       |
35  *   2     |  cascade   |
36  *   3     |  serial 1  |
37  *   4     |  serial 0  | serial
38  *   5     |  -         |
39  *   6     |  floppy    |
40  *   7     |  parallel  |
41  *   8     |  rtc       | rtc (rtc=on)
42  *   9     |  acpi      | acpi (ged)
43  *  10     |  pci lnk   | xhci (usb=on)
44  *  11     |  pci lnk   |
45  *  12     |  ps2       | pcie
46  *  13     |  fpu       | pcie
47  *  14     |  ide 0     | pcie
48  *  15     |  ide 1     | pcie
49  *  16-23  |  pci gsi   | virtio
50  */
51 
52 /* Platform virtio definitions */
53 #define VIRTIO_MMIO_BASE      0xfeb00000
54 #define VIRTIO_CMDLINE_MAXLEN 64
55 
56 #define GED_MMIO_BASE         0xfea00000
57 #define GED_MMIO_BASE_MEMHP   (GED_MMIO_BASE + 0x100)
58 #define GED_MMIO_BASE_REGS    (GED_MMIO_BASE + 0x200)
59 #define GED_MMIO_IRQ          9
60 
61 #define MICROVM_XHCI_BASE     0xfe900000
62 #define MICROVM_XHCI_IRQ      10
63 
64 #define PCIE_MMIO_BASE        0xc0000000
65 #define PCIE_MMIO_SIZE        0x20000000
66 #define PCIE_ECAM_BASE        0xe0000000
67 #define PCIE_ECAM_SIZE        0x10000000
68 
69 /* Machine type options */
70 #define MICROVM_MACHINE_RTC                 "rtc"
71 #define MICROVM_MACHINE_PCIE                "pcie"
72 #define MICROVM_MACHINE_IOAPIC2             "ioapic2"
73 #define MICROVM_MACHINE_ISA_SERIAL          "isa-serial"
74 #define MICROVM_MACHINE_OPTION_ROMS         "x-option-roms"
75 #define MICROVM_MACHINE_AUTO_KERNEL_CMDLINE "auto-kernel-cmdline"
76 
77 struct MicrovmMachineClass {
78     X86MachineClass parent;
79     HotplugHandler *(*orig_hotplug_handler)(MachineState *machine,
80                                            DeviceState *dev);
81 };
82 
83 struct MicrovmMachineState {
84     X86MachineState parent;
85 
86     /* Machine type options */
87     OnOffAuto rtc;
88     OnOffAuto pcie;
89     OnOffAuto ioapic2;
90     bool isa_serial;
91     bool option_roms;
92     bool auto_kernel_cmdline;
93 
94     /* Machine state */
95     uint32_t pcie_irq_base;
96     uint32_t virtio_irq_base;
97     uint32_t virtio_num_transports;
98     bool kernel_cmdline_fixed;
99     Notifier machine_done;
100     Notifier powerdown_req;
101     struct GPEXConfig gpex;
102 
103     /* device tree */
104     void *fdt;
105     uint32_t ioapic_phandle[2];
106 };
107 
108 #define TYPE_MICROVM_MACHINE   MACHINE_TYPE_NAME("microvm")
109 OBJECT_DECLARE_TYPE(MicrovmMachineState, MicrovmMachineClass, MICROVM_MACHINE)
110 
111 #endif
112