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a52a7fdfa7
Add Intel IOMMU emulation to q35 chipset and expose it to the guest. 1. Add a machine option. Users can use "-machine iommu=on|off" in the command line to enable/disable Intel IOMMU. The default is off. 2. Accroding to the machine option, q35 will initialize the Intel IOMMU and use pci_setup_iommu() to setup q35_host_dma_iommu() as the IOMMU function for the pci bus. 3. q35_host_dma_iommu() will return different address space according to the bus_num and devfn of the device. Signed-off-by: Le Tan <tamlokveer@gmail.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/* Declarations for use by board files for creating devices. */
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#ifndef HW_BOARDS_H
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#define HW_BOARDS_H
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#include "qemu/typedefs.h"
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#include "sysemu/blockdev.h"
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#include "hw/qdev.h"
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#include "qom/object.h"
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typedef struct MachineState MachineState;
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typedef void QEMUMachineInitFunc(MachineState *ms);
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typedef void QEMUMachineResetFunc(void);
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typedef void QEMUMachineHotAddCPUFunc(const int64_t id, Error **errp);
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typedef int QEMUMachineGetKvmtypeFunc(const char *arg);
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struct QEMUMachine {
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const char *name;
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const char *alias;
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const char *desc;
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QEMUMachineInitFunc *init;
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QEMUMachineResetFunc *reset;
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QEMUMachineHotAddCPUFunc *hot_add_cpu;
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QEMUMachineGetKvmtypeFunc *kvm_type;
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BlockInterfaceType block_default_type;
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int max_cpus;
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unsigned int no_serial:1,
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no_parallel:1,
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use_virtcon:1,
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use_sclp:1,
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no_floppy:1,
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no_cdrom:1,
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no_sdcard:1;
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int is_default;
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const char *default_machine_opts;
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const char *default_boot_order;
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GlobalProperty *compat_props;
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const char *hw_version;
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};
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void memory_region_allocate_system_memory(MemoryRegion *mr, Object *owner,
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const char *name,
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uint64_t ram_size);
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int qemu_register_machine(QEMUMachine *m);
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#define TYPE_MACHINE_SUFFIX "-machine"
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#define TYPE_MACHINE "machine"
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#undef MACHINE /* BSD defines it and QEMU does not use it */
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#define MACHINE(obj) \
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OBJECT_CHECK(MachineState, (obj), TYPE_MACHINE)
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#define MACHINE_GET_CLASS(obj) \
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OBJECT_GET_CLASS(MachineClass, (obj), TYPE_MACHINE)
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#define MACHINE_CLASS(klass) \
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OBJECT_CLASS_CHECK(MachineClass, (klass), TYPE_MACHINE)
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MachineClass *find_default_machine(void);
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extern MachineState *current_machine;
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/**
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* MachineClass:
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* @qemu_machine: #QEMUMachine
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* @get_hotplug_handler: this function is called during bus-less
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* device hotplug. If defined it returns pointer to an instance
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* of HotplugHandler object, which handles hotplug operation
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* for a given @dev. It may return NULL if @dev doesn't require
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* any actions to be performed by hotplug handler.
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*/
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struct MachineClass {
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/*< private >*/
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ObjectClass parent_class;
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/*< public >*/
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const char *name;
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const char *alias;
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const char *desc;
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void (*init)(MachineState *state);
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void (*reset)(void);
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void (*hot_add_cpu)(const int64_t id, Error **errp);
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int (*kvm_type)(const char *arg);
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BlockInterfaceType block_default_type;
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int max_cpus;
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unsigned int no_serial:1,
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no_parallel:1,
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use_virtcon:1,
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use_sclp:1,
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no_floppy:1,
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no_cdrom:1,
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no_sdcard:1;
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int is_default;
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const char *default_machine_opts;
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const char *default_boot_order;
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GlobalProperty *compat_props;
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const char *hw_version;
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HotplugHandler *(*get_hotplug_handler)(MachineState *machine,
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DeviceState *dev);
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};
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/**
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* MachineState:
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*/
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struct MachineState {
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/*< private >*/
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Object parent_obj;
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/*< public >*/
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char *accel;
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bool kernel_irqchip;
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int kvm_shadow_mem;
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char *dtb;
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char *dumpdtb;
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int phandle_start;
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char *dt_compatible;
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bool dump_guest_core;
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bool mem_merge;
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bool usb;
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char *firmware;
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bool iommu;
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ram_addr_t ram_size;
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ram_addr_t maxram_size;
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uint64_t ram_slots;
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const char *boot_order;
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char *kernel_filename;
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char *kernel_cmdline;
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char *initrd_filename;
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const char *cpu_model;
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};
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#endif
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