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Diffstat (limited to 'hw/device-assignment.h')
| -rw-r--r-- | hw/device-assignment.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/hw/device-assignment.h b/hw/device-assignment.h new file mode 100644 index 000000000..a23126099 --- /dev/null +++ b/hw/device-assignment.h @@ -0,0 +1,117 @@ +/* + * Copyright (c) 2007, Neocleus Corporation. + * Copyright (c) 2007, Intel Corporation. + * + * 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, 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, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + * + * Data structures for storing PCI state + * + * Adapted to kvm by Qumranet + * + * Copyright (c) 2007, Neocleus, Alex Novik (alex@neocleus.com) + * Copyright (c) 2007, Neocleus, Guy Zana (guy@neocleus.com) + * Copyright (C) 2008, Qumranet, Amit Shah (amit.shah@qumranet.com) + * Copyright (C) 2008, Red Hat, Amit Shah (amit.shah@redhat.com) + */ + +#ifndef __DEVICE_ASSIGNMENT_H__ +#define __DEVICE_ASSIGNMENT_H__ + +#include <sys/mman.h> +#include "qemu-common.h" +#include "qemu-queue.h" +#include "pci.h" + +/* From include/linux/pci.h in the kernel sources */ +#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) + +typedef struct PCIHostDevice { + int bus; + int dev; + int func; +} PCIHostDevice; + +typedef struct { + int type; /* Memory or port I/O */ + int valid; + uint32_t base_addr; + uint32_t size; /* size of the region */ + int resource_fd; +} PCIRegion; + +typedef struct { + uint8_t bus, dev, func; /* Bus inside domain, device and function */ + int irq; /* IRQ number */ + uint16_t region_number; /* number of active regions */ + + /* Port I/O or MMIO Regions */ + PCIRegion regions[PCI_NUM_REGIONS]; + int config_fd; +} PCIDevRegions; + +typedef struct { + pcibus_t e_physbase; + uint32_t memory_index; + union { + void *r_virtbase; /* mmapped access address for memory regions */ + uint32_t r_baseport; /* the base guest port for I/O regions */ + } u; + int num; /* our index within v_addrs[] */ + pcibus_t e_size; /* emulated size of region in bytes */ + pcibus_t r_size; /* real size of region in bytes */ +} AssignedDevRegion; + +typedef struct AssignedDevice { + PCIDevice dev; + PCIHostDevice host; + uint32_t use_iommu; + int intpin; + uint8_t debug_flags; + AssignedDevRegion v_addrs[PCI_NUM_REGIONS]; + PCIDevRegions real_device; + int run; + int girq; + unsigned char h_busnr; + unsigned int h_devfn; + int irq_requested_type; + int bound; + struct pci_dev *pdev; + struct { +#define ASSIGNED_DEVICE_CAP_MSI (1 << 0) +#define ASSIGNED_DEVICE_CAP_MSIX (1 << 1) + uint32_t available; +#define ASSIGNED_DEVICE_MSI_ENABLED (1 << 0) +#define ASSIGNED_DEVICE_MSIX_ENABLED (1 << 1) +#define ASSIGNED_DEVICE_MSIX_MASKED (1 << 2) + uint32_t state; + } cap; + int irq_entries_nr; + struct kvm_irq_routing_entry *entry; + void *msix_table_page; + target_phys_addr_t msix_table_addr; + int mmio_index; + int need_emulate_cmd; + QLIST_ENTRY(AssignedDevice) next; +} AssignedDevice; + +QemuOpts *add_assigned_device(const char *arg); +void add_assigned_devices(PCIBus *bus, const char **devices, int n_devices); +void assigned_dev_update_irqs(void); + +#define MAX_DEV_ASSIGN_CMDLINE 8 + +extern const char *assigned_devices[MAX_DEV_ASSIGN_CMDLINE]; +extern int assigned_devices_index; + +#endif /* __DEVICE_ASSIGNMENT_H__ */ |