ref: 4e4f2aca32c3409a5fca3341dccd14318c18f9b1
dir: /sys/src/9/xen/xen-public/physdev.h/
/* * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to * deal in the Software without restriction, including without limitation the * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #ifndef __XEN_PUBLIC_PHYSDEV_H__ #define __XEN_PUBLIC_PHYSDEV_H__ #include "xen.h" /* * Prototype for this hypercall is: * int physdev_op(int cmd, void *args) * @cmd == PHYSDEVOP_??? (physdev operation). * @args == Operation-specific extra arguments (NULL if none). */ /* * Notify end-of-interrupt (EOI) for the specified IRQ. * @arg == pointer to physdev_eoi structure. */ #define PHYSDEVOP_eoi 12 struct physdev_eoi { /* IN */ uint32_t irq; }; typedef struct physdev_eoi physdev_eoi_t; DEFINE_XEN_GUEST_HANDLE(physdev_eoi_t); /* * Register a shared page for the hypervisor to indicate whether the guest * must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly * once the guest used this function in that the associated event channel * will automatically get unmasked. The page registered is used as a bit * array indexed by Xen's PIRQ value. */ #define PHYSDEVOP_pirq_eoi_gmfn_v1 17 /* * Register a shared page for the hypervisor to indicate whether the * guest must issue PHYSDEVOP_eoi. This hypercall is very similar to * PHYSDEVOP_pirq_eoi_gmfn_v1 but it doesn't change the semantics of * PHYSDEVOP_eoi. The page registered is used as a bit array indexed by * Xen's PIRQ value. */ #define PHYSDEVOP_pirq_eoi_gmfn_v2 28 struct physdev_pirq_eoi_gmfn { /* IN */ xen_pfn_t gmfn; }; typedef struct physdev_pirq_eoi_gmfn physdev_pirq_eoi_gmfn_t; DEFINE_XEN_GUEST_HANDLE(physdev_pirq_eoi_gmfn_t); /* * Query the status of an IRQ line. * @arg == pointer to physdev_irq_status_query structure. */ #define PHYSDEVOP_irq_status_query 5 struct physdev_irq_status_query { /* IN */ uint32_t irq; /* OUT */ uint32_t flags; /* XENIRQSTAT_* */ }; typedef struct physdev_irq_status_query physdev_irq_status_query_t; DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t); /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */ #define _XENIRQSTAT_needs_eoi (0) #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi) /* IRQ shared by multiple guests? */ #define _XENIRQSTAT_shared (1) #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared) /* * Set the current VCPU's I/O privilege level. * @arg == pointer to physdev_set_iopl structure. */ #define PHYSDEVOP_set_iopl 6 struct physdev_set_iopl { /* IN */ uint32_t iopl; }; typedef struct physdev_set_iopl physdev_set_iopl_t; DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t); /* * Set the current VCPU's I/O-port permissions bitmap. * @arg == pointer to physdev_set_iobitmap structure. */ #define PHYSDEVOP_set_iobitmap 7 struct physdev_set_iobitmap { /* IN */ #if __XEN_INTERFACE_VERSION__ >= 0x00030205 XEN_GUEST_HANDLE(uint8) bitmap; #else uint8_t *bitmap; #endif uint32_t nr_ports; }; typedef struct physdev_set_iobitmap physdev_set_iobitmap_t; DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t); /* * Read or write an IO-APIC register. * @arg == pointer to physdev_apic structure. */ #define PHYSDEVOP_apic_read 8 #define PHYSDEVOP_apic_write 9 struct physdev_apic { /* IN */ unsigned long apic_physbase; uint32_t reg; /* IN or OUT */ uint32_t value; }; typedef struct physdev_apic physdev_apic_t; DEFINE_XEN_GUEST_HANDLE(physdev_apic_t); /* * Allocate or free a physical upcall vector for the specified IRQ line. * @arg == pointer to physdev_irq structure. */ #define PHYSDEVOP_alloc_irq_vector 10 #define PHYSDEVOP_free_irq_vector 11 struct physdev_irq { /* IN */ uint32_t irq; /* IN or OUT */ uint32_t vector; }; typedef struct physdev_irq physdev_irq_t; DEFINE_XEN_GUEST_HANDLE(physdev_irq_t); #define MAP_PIRQ_TYPE_MSI 0x0 #define MAP_PIRQ_TYPE_GSI 0x1 #define MAP_PIRQ_TYPE_UNKNOWN 0x2 #define MAP_PIRQ_TYPE_MSI_SEG 0x3 #define PHYSDEVOP_map_pirq 13 struct physdev_map_pirq { domid_t domid; /* IN */ int type; /* IN */ int index; /* IN or OUT */ int pirq; /* IN - high 16 bits hold segment for MAP_PIRQ_TYPE_MSI_SEG */ int bus; /* IN */ int devfn; /* IN */ int entry_nr; /* IN */ uint64_t table_base; }; typedef struct physdev_map_pirq physdev_map_pirq_t; DEFINE_XEN_GUEST_HANDLE(physdev_map_pirq_t); #define PHYSDEVOP_unmap_pirq 14 struct physdev_unmap_pirq { domid_t domid; /* IN */ int pirq; }; typedef struct physdev_unmap_pirq physdev_unmap_pirq_t; DEFINE_XEN_GUEST_HANDLE(physdev_unmap_pirq_t); #define PHYSDEVOP_manage_pci_add 15 #define PHYSDEVOP_manage_pci_remove 16 struct physdev_manage_pci { /* IN */ uint8_t bus; uint8_t devfn; }; typedef struct physdev_manage_pci physdev_manage_pci_t; DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_t); #define PHYSDEVOP_restore_msi 19 struct physdev_restore_msi { /* IN */ uint8_t bus; uint8_t devfn; }; typedef struct physdev_restore_msi physdev_restore_msi_t; DEFINE_XEN_GUEST_HANDLE(physdev_restore_msi_t); #define PHYSDEVOP_manage_pci_add_ext 20 struct physdev_manage_pci_ext { /* IN */ uint8_t bus; uint8_t devfn; unsigned is_extfn; unsigned is_virtfn; struct { uint8_t bus; uint8_t devfn; } physfn; }; typedef struct physdev_manage_pci_ext physdev_manage_pci_ext_t; DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_ext_t); /* * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op() * hypercall since 0x00030202. */ struct physdev_op { uint32_t cmd; union { struct physdev_irq_status_query irq_status_query; struct physdev_set_iopl set_iopl; struct physdev_set_iobitmap set_iobitmap; struct physdev_apic apic_op; struct physdev_irq irq_op; } u; }; typedef struct physdev_op physdev_op_t; DEFINE_XEN_GUEST_HANDLE(physdev_op_t); #define PHYSDEVOP_setup_gsi 21 struct physdev_setup_gsi { int gsi; /* IN */ uint8_t triggering; /* IN */ uint8_t polarity; /* IN */ }; typedef struct physdev_setup_gsi physdev_setup_gsi_t; DEFINE_XEN_GUEST_HANDLE(physdev_setup_gsi_t); /* leave PHYSDEVOP 22 free */ /* type is MAP_PIRQ_TYPE_GSI or MAP_PIRQ_TYPE_MSI * the hypercall returns a free pirq */ #define PHYSDEVOP_get_free_pirq 23 struct physdev_get_free_pirq { /* IN */ int type; /* OUT */ uint32_t pirq; }; typedef struct physdev_get_free_pirq physdev_get_free_pirq_t; DEFINE_XEN_GUEST_HANDLE(physdev_get_free_pirq_t); #define XEN_PCI_MMCFG_RESERVED 0x1 #define PHYSDEVOP_pci_mmcfg_reserved 24 struct physdev_pci_mmcfg_reserved { uint64_t address; uint16_t segment; uint8_t start_bus; uint8_t end_bus; uint32_t flags; }; typedef struct physdev_pci_mmcfg_reserved physdev_pci_mmcfg_reserved_t; DEFINE_XEN_GUEST_HANDLE(physdev_pci_mmcfg_reserved_t); #define XEN_PCI_DEV_EXTFN 0x1 #define XEN_PCI_DEV_VIRTFN 0x2 #define XEN_PCI_DEV_PXM 0x4 #define PHYSDEVOP_pci_device_add 25 struct physdev_pci_device_add { /* IN */ uint16_t seg; uint8_t bus; uint8_t devfn; uint32_t flags; struct { uint8_t bus; uint8_t devfn; } physfn; #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L uint32_t optarr[]; #elif defined(__GNUC__) uint32_t optarr[0]; #endif }; typedef struct physdev_pci_device_add physdev_pci_device_add_t; DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_add_t); #define PHYSDEVOP_pci_device_remove 26 #define PHYSDEVOP_restore_msi_ext 27 /* * Dom0 should use these two to announce MMIO resources assigned to * MSI-X capable devices won't (prepare) or may (release) change. */ #define PHYSDEVOP_prepare_msix 30 #define PHYSDEVOP_release_msix 31 struct physdev_pci_device { /* IN */ uint16_t seg; uint8_t bus; uint8_t devfn; }; typedef struct physdev_pci_device physdev_pci_device_t; DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_t); #define PHYSDEVOP_DBGP_RESET_PREPARE 1 #define PHYSDEVOP_DBGP_RESET_DONE 2 #define PHYSDEVOP_DBGP_BUS_UNKNOWN 0 #define PHYSDEVOP_DBGP_BUS_PCI 1 #define PHYSDEVOP_dbgp_op 29 struct physdev_dbgp_op { /* IN */ uint8_t op; uint8_t bus; union { struct physdev_pci_device pci; } u; }; typedef struct physdev_dbgp_op physdev_dbgp_op_t; DEFINE_XEN_GUEST_HANDLE(physdev_dbgp_op_t); /* * Notify that some PIRQ-bound event channels have been unmasked. * ** This command is obsolete since interface version 0x00030202 and is ** * ** unsupported by newer versions of Xen. ** */ #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4 /* * These all-capitals physdev operation names are superceded by the new names * (defined above) since interface version 0x00030202. */ #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared #if __XEN_INTERFACE_VERSION__ < 0x00040200 #define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v1 #else #define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v2 #endif #endif /* __XEN_PUBLIC_PHYSDEV_H__ */ /* * Local variables: * mode: C * c-file-style: "BSD" * c-basic-offset: 4 * tab-width: 4 * indent-tabs-mode: nil * End: */