aboutsummaryrefslogtreecommitdiff
path: root/include/hw/arm/virt.h
blob: 69f78474e0b74487b5141b5401c7e4c8265a0b68 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
/*
 *
 * Copyright (c) 2015 Linaro Limited
 *
 * 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/>.
 *
 * Emulate a virtual board which works by passing Linux all the information
 * it needs about what devices are present via the device tree.
 * There are some restrictions about what we can do here:
 *  + we can only present devices whose Linux drivers will work based
 *    purely on the device tree with no platform data at all
 *  + we want to present a very stripped-down minimalist platform,
 *    both because this reduces the security attack surface from the guest
 *    and also because it reduces our exposure to being broken when
 *    the kernel updates its device tree bindings and requires further
 *    information in a device binding that we aren't providing.
 * This is essentially the same approach kvmtool uses.
 */

#ifndef QEMU_ARM_VIRT_H
#define QEMU_ARM_VIRT_H

#include "qemu-common.h"
#include "exec/hwaddr.h"
#include "qemu/notify.h"

#define NUM_GICV2M_SPIS       64
#define NUM_VIRTIO_TRANSPORTS 32

#define ARCH_TIMER_VIRT_IRQ   11
#define ARCH_TIMER_S_EL1_IRQ  13
#define ARCH_TIMER_NS_EL1_IRQ 14
#define ARCH_TIMER_NS_EL2_IRQ 10

#define VIRTUAL_PMU_IRQ 7

#define PPI(irq) ((irq) + 16)

enum {
    VIRT_FLASH,
    VIRT_MEM,
    VIRT_CPUPERIPHS,
    VIRT_GIC_DIST,
    VIRT_GIC_CPU,
    VIRT_GIC_V2M,
    VIRT_GIC_ITS,
    VIRT_GIC_REDIST,
    VIRT_UART,
    VIRT_MMIO,
    VIRT_RTC,
    VIRT_FW_CFG,
    VIRT_PCIE,
    VIRT_PCIE_MMIO,
    VIRT_PCIE_PIO,
    VIRT_PCIE_ECAM,
    VIRT_PLATFORM_BUS,
    VIRT_PCIE_MMIO_HIGH,
    VIRT_GPIO,
    VIRT_SECURE_UART,
    VIRT_SECURE_MEM,
};

typedef struct MemMapEntry {
    hwaddr base;
    hwaddr size;
} MemMapEntry;

typedef struct VirtGuestInfo {
    int smp_cpus;
    FWCfgState *fw_cfg;
    const MemMapEntry *memmap;
    const int *irqmap;
    bool use_highmem;
    int gic_version;
    bool no_its;
} VirtGuestInfo;

void virt_acpi_setup(VirtGuestInfo *guest_info);

#endif /* QEMU_ARM_VIRT_H */