win-pvdrivers

annotate xenpci/xenpci.h @ 74:06b4321b7068

Created a common AllocagePages routine in xen_windows.h
Updated xennet and xenvbd to use it.
Updated xennet's method of getting the virtual address from the Mdl
author James Harper <james.harper@bendigoit.com.au>
date Thu Dec 20 21:37:20 2007 +1100 (2007-12-20)
parents f74723639713
children b7863ede7a37
rev   line source
james@0 1 /*
james@0 2 PV Drivers for Windows Xen HVM Domains
james@0 3 Copyright (C) 2007 James Harper
james@0 4
james@0 5 This program is free software; you can redistribute it and/or
james@0 6 modify it under the terms of the GNU General Public License
james@0 7 as published by the Free Software Foundation; either version 2
james@0 8 of the License, or (at your option) any later version.
james@0 9
james@0 10 This program is distributed in the hope that it will be useful,
james@0 11 but WITHOUT ANY WARRANTY; without even the implied warranty of
james@0 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
james@0 13 GNU General Public License for more details.
james@0 14
james@0 15 You should have received a copy of the GNU General Public License
james@0 16 along with this program; if not, write to the Free Software
james@0 17 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
james@0 18 */
james@0 19
james@0 20 #if !defined(_XENPCI_H_)
james@0 21 #define _XENPCI_H_
james@0 22
james@0 23 #define __attribute__(arg) /* empty */
james@0 24 #define EISCONN 127
james@0 25
james@0 26 #include <ntddk.h>
james@0 27 #include <wdm.h>
james@0 28 #include <wdf.h>
james@0 29 #include <initguid.h>
james@0 30 #include <wdmguid.h>
james@0 31 #include <errno.h>
james@0 32
james@0 33 #define NTSTRSAFE_LIB
james@0 34 #include <ntstrsafe.h>
james@0 35
james@74 36 #define __DRIVER_NAME "XenPCI"
james@74 37
james@0 38 #include <xen_windows.h>
james@0 39 #include <memory.h>
james@0 40 #include <grant_table.h>
james@0 41 #include <event_channel.h>
james@0 42 #include <hvm/params.h>
james@0 43 #include <hvm/hvm_op.h>
james@0 44
andy@15 45 #include <evtchn_public.h>
andy@15 46 #include <xenbus_public.h>
andy@15 47 #include <xen_public.h>
andy@15 48 #include <gnttbl_public.h>
andy@15 49
james@0 50 //{C828ABE9-14CA-4445-BAA6-82C2376C6518}
james@0 51 DEFINE_GUID( GUID_XENPCI_DEVCLASS, 0xC828ABE9, 0x14CA, 0x4445, 0xBA, 0xA6, 0x82, 0xC2, 0x37, 0x6C, 0x65, 0x18);
james@0 52
james@0 53 #define XENPCI_POOL_TAG (ULONG) 'XenP'
james@0 54 //#define XENPCI_FDO_INSTANCE_SIGNATURE (ULONG) 'XENP'
james@0 55
james@0 56 #define NR_RESERVED_ENTRIES 8
james@0 57 #define NR_GRANT_FRAMES 4
james@0 58 #define NR_GRANT_ENTRIES (NR_GRANT_FRAMES * PAGE_SIZE / sizeof(grant_entry_t))
james@0 59
james@0 60 #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
james@0 61
james@0 62 typedef struct _XENPCI_IDENTIFICATION_DESCRIPTION
james@0 63 {
james@0 64 WDF_CHILD_IDENTIFICATION_DESCRIPTION_HEADER Header;
james@0 65 UNICODE_STRING DeviceType;
james@0 66 char Path[128];
james@0 67 } XENPCI_IDENTIFICATION_DESCRIPTION, *PXENPCI_IDENTIFICATION_DESCRIPTION;
james@0 68
andy@13 69 typedef struct _ev_action_t {
andy@13 70 PKSERVICE_ROUTINE ServiceRoutine;
andy@13 71 PVOID ServiceContext;
james@73 72 BOOLEAN DpcFlag;
james@73 73 WDFDPC Dpc;
andy@13 74 ULONG Count;
andy@13 75 } ev_action_t;
james@0 76
james@73 77 typedef struct {
james@73 78 ev_action_t *Action;
james@73 79 } EVTCHN_DEVICE_DATA, *PEVTCHN_DEVICE_DATA;
james@73 80 WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(EVTCHN_DEVICE_DATA, GetEvtChnDeviceData);
james@73 81
andy@15 82 typedef struct _XENBUS_WATCH_RING
andy@15 83 {
andy@15 84 char Path[128];
andy@15 85 char Token[10];
andy@15 86 } XENBUS_WATCH_RING;
james@0 87
andy@15 88 typedef struct _XENBUS_REQ_INFO
andy@15 89 {
andy@15 90 int In_Use:1;
andy@15 91 KEVENT WaitEvent;
andy@15 92 void *Reply;
andy@15 93 } XENBUS_REQ_INFO;
james@0 94
andy@15 95 typedef struct _XENBUS_WATCH_ENTRY {
andy@15 96 char Path[128];
andy@15 97 PXENBUS_WATCH_CALLBACK ServiceRoutine;
andy@15 98 PVOID ServiceContext;
andy@15 99 int Count;
andy@15 100 int Active;
andy@15 101 } XENBUS_WATCH_ENTRY, *PXENBUS_WATCH_ENTRY;
james@0 102
andy@13 103 #define NR_EVENTS 1024
andy@15 104 #define WATCH_RING_SIZE 128
andy@15 105 #define NR_XB_REQS 32
andy@15 106 #define MAX_WATCH_ENTRIES 128
james@0 107
andy@15 108 // TODO: tidy up & organize this struct
james@0 109 typedef struct {
james@0 110
andy@13 111 WDFDEVICE Device;
andy@38 112 BOOLEAN XenBus_ShuttingDown;
james@0 113
andy@13 114 WDFINTERRUPT XenInterrupt;
andy@13 115 ULONG irqNumber;
james@0 116
andy@13 117 shared_info_t *shared_info_area;
james@0 118
andy@13 119 PHYSICAL_ADDRESS platform_mmio_addr;
andy@13 120 ULONG platform_mmio_orig_len;
andy@13 121 ULONG platform_mmio_len;
andy@13 122 ULONG platform_mmio_alloc;
andy@13 123
andy@13 124 char *hypercall_stubs;
andy@13 125
andy@13 126 evtchn_port_t xen_store_evtchn;
andy@13 127
andy@13 128 grant_entry_t *gnttab_table;
andy@13 129 PHYSICAL_ADDRESS gnttab_table_physical;
andy@13 130 grant_ref_t gnttab_list[NR_GRANT_ENTRIES];
andy@13 131
andy@13 132 ev_action_t ev_actions[NR_EVENTS];
andy@13 133 unsigned long bound_ports[NR_EVENTS/(8*sizeof(unsigned long))];
james@0 134
andy@15 135 HANDLE XenBus_ReadThreadHandle;
andy@15 136 KEVENT XenBus_ReadThreadEvent;
andy@15 137 HANDLE XenBus_WatchThreadHandle;
andy@15 138 KEVENT XenBus_WatchThreadEvent;
andy@15 139
andy@15 140 XENBUS_WATCH_RING XenBus_WatchRing[WATCH_RING_SIZE];
andy@15 141 int XenBus_WatchRingReadIndex;
andy@15 142 int XenBus_WatchRingWriteIndex;
andy@15 143
andy@15 144 struct xenstore_domain_interface *xen_store_interface;
andy@15 145
andy@15 146 XENBUS_REQ_INFO req_info[NR_XB_REQS];
andy@15 147 int nr_live_reqs;
andy@15 148 XENBUS_WATCH_ENTRY XenBus_WatchEntries[MAX_WATCH_ENTRIES];
james@0 149
james@0 150 } XENPCI_DEVICE_DATA, *PXENPCI_DEVICE_DATA;
james@0 151
james@0 152 WDF_DECLARE_CONTEXT_TYPE_WITH_NAME(XENPCI_DEVICE_DATA, GetDeviceData);
james@0 153
james@0 154 typedef unsigned long xenbus_transaction_t;
james@0 155 typedef uint32_t XENSTORE_RING_IDX;
james@0 156
james@0 157 #define XBT_NIL ((xenbus_transaction_t)0)
james@0 158
james@0 159 char *
andy@13 160 XenBus_Read(PVOID Context, xenbus_transaction_t xbt, const char *path, char **value);
james@0 161 char *
andy@13 162 XenBus_Write(PVOID Context, xenbus_transaction_t xbt, const char *path, const char *value);
james@0 163 char *
andy@13 164 XenBus_Printf(PVOID Context, xenbus_transaction_t xbt, const char *path, const char *fmt, ...);
james@0 165 char *
andy@13 166 XenBus_StartTransaction(PVOID Context, xenbus_transaction_t *xbt);
james@0 167 char *
andy@13 168 XenBus_EndTransaction(PVOID Context, xenbus_transaction_t t, int abort, int *retry);
andy@13 169 char *
andy@13 170 XenBus_List(PVOID Context, xenbus_transaction_t xbt, const char *prefix, char ***contents);
james@0 171 NTSTATUS
andy@15 172 XenBus_Init(WDFDEVICE Device);
james@0 173 NTSTATUS
andy@37 174 XenBus_Close(WDFDEVICE Device);
andy@37 175 NTSTATUS
andy@15 176 XenBus_Start(WDFDEVICE Device);
andy@15 177 NTSTATUS
andy@15 178 XenBus_Stop(WDFDEVICE Device);
james@0 179 char *
andy@13 180 XenBus_AddWatch(PVOID Context, xenbus_transaction_t xbt, const char *Path, PXENBUS_WATCH_CALLBACK ServiceRoutine, PVOID ServiceContext);
james@0 181 char *
andy@13 182 XenBus_RemWatch(PVOID Context, xenbus_transaction_t xbt, const char *Path, PXENBUS_WATCH_CALLBACK ServiceRoutine, PVOID ServiceContext);
james@0 183 VOID
james@0 184 XenBus_ThreadProc(PVOID StartContext);
james@0 185
james@0 186 PHYSICAL_ADDRESS
andy@13 187 XenPCI_AllocMMIO(WDFDEVICE Device, ULONG len);
james@0 188
andy@15 189 NTSTATUS
andy@15 190 EvtChn_Init(WDFDEVICE Device);
james@0 191 BOOLEAN
james@0 192 EvtChn_Interrupt(WDFINTERRUPT Interrupt, ULONG MessageID);
andy@68 193 VOID
james@0 194 EvtChn_InterruptDpc(WDFINTERRUPT Interrupt, WDFOBJECT AssociatedObject);
james@0 195 NTSTATUS
andy@13 196 EvtChn_Mask(PVOID Context, evtchn_port_t Port);
james@0 197 NTSTATUS
andy@13 198 EvtChn_Unmask(PVOID Context, evtchn_port_t Port);
james@0 199 NTSTATUS
andy@13 200 EvtChn_Bind(PVOID Context, evtchn_port_t Port, PKSERVICE_ROUTINE ServiceRoutine, PVOID ServiceContext);
james@0 201 NTSTATUS
james@73 202 EvtChn_BindDpc(PVOID Context, evtchn_port_t Port, PKSERVICE_ROUTINE ServiceRoutine, PVOID ServiceContext);
james@73 203 NTSTATUS
andy@13 204 EvtChn_Unbind(PVOID Context, evtchn_port_t Port);
andy@13 205 NTSTATUS
andy@13 206 EvtChn_Notify(PVOID Context, evtchn_port_t Port);
james@0 207 evtchn_port_t
andy@13 208 EvtChn_AllocUnbound(PVOID Context, domid_t Domain);
andy@15 209 evtchn_port_t
andy@15 210 EvtChn_GetXenStorePort(WDFDEVICE Device);
andy@15 211 PVOID
andy@15 212 EvtChn_GetXenStoreRingAddr(WDFDEVICE Device);
james@0 213
andy@15 214 VOID
andy@15 215 GntTbl_Init(WDFDEVICE Device);
james@0 216 grant_ref_t
andy@13 217 GntTbl_GrantAccess(WDFDEVICE Device, domid_t domid, unsigned long frame, int readonly);
james@0 218 BOOLEAN
andy@13 219 GntTbl_EndAccess(WDFDEVICE Device, grant_ref_t ref);
james@0 220
james@0 221 #endif