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Diffstat (limited to 'drivers/staging/hv/Hv.h')
| -rw-r--r-- | drivers/staging/hv/Hv.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/drivers/staging/hv/Hv.h b/drivers/staging/hv/Hv.h new file mode 100644 index 000000000000..694c96b8b06b --- /dev/null +++ b/drivers/staging/hv/Hv.h @@ -0,0 +1,184 @@ +/* + * + * Copyright (c) 2009, Microsoft 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. + * + * Authors: + * Haiyang Zhang <haiyangz@microsoft.com> + * Hank Janssen <hjanssen@microsoft.com> + * + */ + + +#ifndef __HV_H__ +#define __HV_H__ + +#include "include/osd.h" + +#include "include/HvTypes.h" +#include "include/HvStatus.h" +/* #include "HvVmApi.h" */ +/* #include "HvKeApi.h" */ +/* #include "HvMmApi.h" */ +/* #include "HvCpuApi.h" */ +#include "include/HvHalApi.h" +#include "include/HvVpApi.h" +/* #include "HvTrApi.h" */ +#include "include/HvSynicApi.h" +/* #include "HvAmApi.h" */ +/* #include "HvHkApi.h" */ +/* #include "HvValApi.h" */ +#include "include/HvHcApi.h" +#include "include/HvPtApi.h" + +enum +{ + VMBUS_MESSAGE_CONNECTION_ID = 1, + VMBUS_MESSAGE_PORT_ID = 1, + VMBUS_EVENT_CONNECTION_ID = 2, + VMBUS_EVENT_PORT_ID = 2, + VMBUS_MONITOR_CONNECTION_ID = 3, + VMBUS_MONITOR_PORT_ID = 3, + VMBUS_MESSAGE_SINT = 2 +}; + +/* #defines */ + +#define HV_PRESENT_BIT 0x80000000 + +#define HV_XENLINUX_GUEST_ID_LO 0x00000000 +#define HV_XENLINUX_GUEST_ID_HI 0x0B00B135 +#define HV_XENLINUX_GUEST_ID (((u64)HV_XENLINUX_GUEST_ID_HI << 32) | HV_XENLINUX_GUEST_ID_LO) + +#define HV_LINUX_GUEST_ID_LO 0x00000000 +#define HV_LINUX_GUEST_ID_HI 0xB16B00B5 +#define HV_LINUX_GUEST_ID (((u64)HV_LINUX_GUEST_ID_HI << 32) | HV_LINUX_GUEST_ID_LO) + +#define HV_CPU_POWER_MANAGEMENT (1 << 0) +#define HV_RECOMMENDATIONS_MAX 4 + +#define HV_X64_MAX 5 +#define HV_CAPS_MAX 8 + + +#define HV_HYPERCALL_PARAM_ALIGN sizeof(u64) + + +/* Service definitions */ + +#define HV_SERVICE_PARENT_PORT (0) +#define HV_SERVICE_PARENT_CONNECTION (0) + +#define HV_SERVICE_CONNECT_RESPONSE_SUCCESS (0) +#define HV_SERVICE_CONNECT_RESPONSE_INVALID_PARAMETER (1) +#define HV_SERVICE_CONNECT_RESPONSE_UNKNOWN_SERVICE (2) +#define HV_SERVICE_CONNECT_RESPONSE_CONNECTION_REJECTED (3) + +#define HV_SERVICE_CONNECT_REQUEST_MESSAGE_ID (1) +#define HV_SERVICE_CONNECT_RESPONSE_MESSAGE_ID (2) +#define HV_SERVICE_DISCONNECT_REQUEST_MESSAGE_ID (3) +#define HV_SERVICE_DISCONNECT_RESPONSE_MESSAGE_ID (4) +#define HV_SERVICE_MAX_MESSAGE_ID (4) + +#define HV_SERVICE_PROTOCOL_VERSION (0x0010) +#define HV_CONNECT_PAYLOAD_BYTE_COUNT 64 + +/* #define VMBUS_REVISION_NUMBER 6 */ +/* #define VMBUS_PORT_ID 11 // Our local vmbus's port and connection id. Anything >0 is fine */ + +/* 628180B8-308D-4c5e-B7DB-1BEB62E62EF4 */ +static const GUID VMBUS_SERVICE_ID = {.Data = {0xb8, 0x80, 0x81, 0x62, 0x8d, 0x30, 0x5e, 0x4c, 0xb7, 0xdb, 0x1b, 0xeb, 0x62, 0xe6, 0x2e, 0xf4} }; + +#define MAX_NUM_CPUS 1 + + +typedef struct { + u64 Align8; + HV_INPUT_SIGNAL_EVENT Event; +} HV_INPUT_SIGNAL_EVENT_BUFFER; + +typedef struct { + u64 GuestId; /* XenLinux or native Linux. If XenLinux, the hypercall and synic pages has already been initialized */ + void* HypercallPage; + + bool SynICInitialized; + /* This is used as an input param to HvCallSignalEvent hypercall. The input param is immutable */ + /* in our usage and must be dynamic mem (vs stack or global). */ + HV_INPUT_SIGNAL_EVENT_BUFFER *SignalEventBuffer; + HV_INPUT_SIGNAL_EVENT *SignalEventParam; /* 8-bytes aligned of the buffer above */ + + void *synICMessagePage[MAX_NUM_CPUS]; + void *synICEventPage[MAX_NUM_CPUS]; +} HV_CONTEXT; + +extern HV_CONTEXT gHvContext; + + + +/* Inline routines */ + +static inline unsigned long long ReadMsr(int msr) +{ + unsigned long long val; + + rdmsrl(msr, val); + + return val; +} + +static inline void WriteMsr(int msr, u64 val) +{ + wrmsrl(msr, val); + + return; +} + + +/* Hv Interface */ + +static int +HvInit( + void + ); + +static void +HvCleanup( + void + ); + +static HV_STATUS +HvPostMessage( + HV_CONNECTION_ID connectionId, + HV_MESSAGE_TYPE messageType, + void * payload, + size_t payloadSize + ); + +static HV_STATUS +HvSignalEvent( + void + ); + +static int +HvSynicInit( + u32 irqVector + ); + +static void +HvSynicCleanup( + void + ); + +#endif /* __HV_H__ */ |