include/hw/arm/virt.h

   1 /*
   2  *
   3  * Copyright (c) 2015 Linaro Limited
   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  * Emulate a virtual board which works by passing Linux all the information
  18  * it needs about what devices are present via the device tree.
  19  * There are some restrictions about what we can do here:
  20  *  + we can only present devices whose Linux drivers will work based
  21  *    purely on the device tree with no platform data at all
  22  *  + we want to present a very stripped-down minimalist platform,
  23  *    both because this reduces the security attack surface from the guest
  24  *    and also because it reduces our exposure to being broken when
  25  *    the kernel updates its device tree bindings and requires further
  26  *    information in a device binding that we aren't providing.
  27  * This is essentially the same approach kvmtool uses.
  28  */
  29
  30 #ifndef QEMU_ARM_VIRT_H
  31 #define QEMU_ARM_VIRT_H
  32
  33 #include "qemu-common.h"
  34 #include "exec/hwaddr.h"
  35 #include "qemu/notify.h"
  36 #include "hw/boards.h"
  37 #include "hw/arm/arm.h"
  38
  39 #define NUM_GICV2M_SPIS       64
  40 #define NUM_VIRTIO_TRANSPORTS 32
  41
  42 #define ARCH_TIMER_VIRT_IRQ   11
  43 #define ARCH_TIMER_S_EL1_IRQ  13
  44 #define ARCH_TIMER_NS_EL1_IRQ 14
  45 #define ARCH_TIMER_NS_EL2_IRQ 10
  46
  47 #define VIRTUAL_PMU_IRQ 7
  48
  49 #define PPI(irq) ((irq) + 16)
  50
  51 enum {
  52     VIRT_FLASH,
  53     VIRT_MEM,
  54     VIRT_CPUPERIPHS,
  55     VIRT_GIC_DIST,
  56     VIRT_GIC_CPU,
  57     VIRT_GIC_V2M,
  58     VIRT_GIC_ITS,
  59     VIRT_GIC_REDIST,
  60     VIRT_UART,
  61     VIRT_MMIO,
  62     VIRT_RTC,
  63     VIRT_FW_CFG,
  64     VIRT_PCIE,
  65     VIRT_PCIE_MMIO,
  66     VIRT_PCIE_PIO,
  67     VIRT_PCIE_ECAM,
  68     VIRT_PLATFORM_BUS,
  69     VIRT_PCIE_MMIO_HIGH,
  70     VIRT_GPIO,
  71     VIRT_SECURE_UART,
  72     VIRT_SECURE_MEM,
  73 };
  74
  75 typedef struct MemMapEntry {
  76     hwaddr base;
  77     hwaddr size;
  78 } MemMapEntry;
  79
  80 typedef struct VirtGuestInfo {
  81     int smp_cpus;
  82     FWCfgState *fw_cfg;
  83     const MemMapEntry *memmap;
  84     const int *irqmap;
  85     bool use_highmem;
  86     int gic_version;
  87     bool no_its;
  88 } VirtGuestInfo;
  89
  90 typedef struct {
  91     MachineClass parent;
  92     bool disallow_affinity_adjustment;
  93     bool no_its;
  94     bool no_pmu;
  95     bool claim_edge_triggered_timers;
  96 } VirtMachineClass;
  97
  98 typedef struct {
  99     MachineState parent;
 100     VirtGuestInfo acpi_guest_info;
 101     Notifier machine_done;
 102     bool secure;
 103     bool highmem;
 104     int32_t gic_version;
 105     struct arm_boot_info bootinfo;
 106     const MemMapEntry *memmap;
 107     const int *irqmap;
 108     int smp_cpus;
 109     void *fdt;
 110     int fdt_size;
 111     uint32_t clock_phandle;
 112     uint32_t gic_phandle;
 113     uint32_t msi_phandle;
 114     bool using_psci;
 115 } VirtMachineState;
 116
 117 #define TYPE_VIRT_MACHINE   MACHINE_TYPE_NAME("virt")
 118 #define VIRT_MACHINE(obj) \
 119     OBJECT_CHECK(VirtMachineState, (obj), TYPE_VIRT_MACHINE)
 120 #define VIRT_MACHINE_GET_CLASS(obj) \
 121     OBJECT_GET_CLASS(VirtMachineClass, obj, TYPE_VIRT_MACHINE)
 122 #define VIRT_MACHINE_CLASS(klass) \
 123     OBJECT_CLASS_CHECK(VirtMachineClass, klass, TYPE_VIRT_MACHINE)
 124
 125 void virt_acpi_setup(VirtMachineState *vms);
 126
 127 #endif /* QEMU_ARM_VIRT_H */