FreeBSD/Linux Kernel Cross Reference
sys/xen/interface/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.
     *
     * Copyright (c) 2006, Keir Fraser
     */
    
    #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 MAP_PIRQ_TYPE_MULTI_MSI         0x4
   
   #define PHYSDEVOP_map_pirq               13
   struct physdev_map_pirq {
       domid_t domid;
       /* IN */
       int type;
       /* IN (ignored for ..._MULTI_MSI) */
       int index;
       /* IN or OUT */
       int pirq;
       /* IN - high 16 bits hold segment for ..._MSI_SEG and ..._MULTI_MSI */
       int bus;
       /* IN */
       int devfn;
       /* IN (also OUT for ..._MULTI_MSI) */
       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;
       /*
        * Optional parameters array.
        * First element ([0]) is PXM domain associated with the device (if
        * XEN_PCI_DEV_PXM is set)
        */
       uint32_t optarr[XEN_FLEX_ARRAY_DIM];
   };
   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
   
   #if __XEN_INTERFACE_VERSION__ < 0x00040600
   /*
    * These all-capitals physdev operation names are superceded by the new names
    * (defined above) since interface version 0x00030202. The guard above was
    * added post-4.5 only though and hence shouldn't check for 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
   #endif
   
   #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:
    */

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