diff options
Diffstat (limited to 'include/hw/hyperv')
| -rw-r--r-- | include/hw/hyperv/hyperv-proto.h | 130 | ||||
| -rw-r--r-- | include/hw/hyperv/hyperv.h | 83 |
2 files changed, 213 insertions, 0 deletions
diff --git a/include/hw/hyperv/hyperv-proto.h b/include/hw/hyperv/hyperv-proto.h new file mode 100644 index 0000000000..21dc28aee9 --- /dev/null +++ b/include/hw/hyperv/hyperv-proto.h @@ -0,0 +1,130 @@ +/* + * Definitions for Hyper-V guest/hypervisor interaction + * + * Copyright (c) 2017-2018 Virtuozzo International GmbH. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef HW_HYPERV_HYPERV_PROTO_H +#define HW_HYPERV_HYPERV_PROTO_H + +#include "qemu/bitmap.h" + +/* + * Hypercall status code + */ +#define HV_STATUS_SUCCESS 0 +#define HV_STATUS_INVALID_HYPERCALL_CODE 2 +#define HV_STATUS_INVALID_HYPERCALL_INPUT 3 +#define HV_STATUS_INVALID_ALIGNMENT 4 +#define HV_STATUS_INVALID_PARAMETER 5 +#define HV_STATUS_INSUFFICIENT_MEMORY 11 +#define HV_STATUS_INVALID_PORT_ID 17 +#define HV_STATUS_INVALID_CONNECTION_ID 18 +#define HV_STATUS_INSUFFICIENT_BUFFERS 19 + +/* + * Hypercall numbers + */ +#define HV_POST_MESSAGE 0x005c +#define HV_SIGNAL_EVENT 0x005d +#define HV_HYPERCALL_FAST (1u << 16) + +/* + * Message size + */ +#define HV_MESSAGE_PAYLOAD_SIZE 240 + +/* + * Message types + */ +#define HV_MESSAGE_NONE 0x00000000 +#define HV_MESSAGE_VMBUS 0x00000001 +#define HV_MESSAGE_UNMAPPED_GPA 0x80000000 +#define HV_MESSAGE_GPA_INTERCEPT 0x80000001 +#define HV_MESSAGE_TIMER_EXPIRED 0x80000010 +#define HV_MESSAGE_INVALID_VP_REGISTER_VALUE 0x80000020 +#define HV_MESSAGE_UNRECOVERABLE_EXCEPTION 0x80000021 +#define HV_MESSAGE_UNSUPPORTED_FEATURE 0x80000022 +#define HV_MESSAGE_EVENTLOG_BUFFERCOMPLETE 0x80000040 +#define HV_MESSAGE_X64_IOPORT_INTERCEPT 0x80010000 +#define HV_MESSAGE_X64_MSR_INTERCEPT 0x80010001 +#define HV_MESSAGE_X64_CPUID_INTERCEPT 0x80010002 +#define HV_MESSAGE_X64_EXCEPTION_INTERCEPT 0x80010003 +#define HV_MESSAGE_X64_APIC_EOI 0x80010004 +#define HV_MESSAGE_X64_LEGACY_FP_ERROR 0x80010005 + +/* + * Message flags + */ +#define HV_MESSAGE_FLAG_PENDING 0x1 + +/* + * Number of synthetic interrupts + */ +#define HV_SINT_COUNT 16 + +/* + * Event flags number per SINT + */ +#define HV_EVENT_FLAGS_COUNT (256 * 8) + +/* + * Connection id valid bits + */ +#define HV_CONNECTION_ID_MASK 0x00ffffff + +/* + * Input structure for POST_MESSAGE hypercall + */ +struct hyperv_post_message_input { + uint32_t connection_id; + uint32_t _reserved; + uint32_t message_type; + uint32_t payload_size; + uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE]; +}; + +/* + * Input structure for SIGNAL_EVENT hypercall + */ +struct hyperv_signal_event_input { + uint32_t connection_id; + uint16_t flag_number; + uint16_t _reserved_zero; +}; + +/* + * SynIC message structures + */ +struct hyperv_message_header { + uint32_t message_type; + uint8_t payload_size; + uint8_t message_flags; /* HV_MESSAGE_FLAG_XX */ + uint8_t _reserved[2]; + uint64_t sender; +}; + +struct hyperv_message { + struct hyperv_message_header header; + uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE]; +}; + +struct hyperv_message_page { + struct hyperv_message slot[HV_SINT_COUNT]; +}; + +/* + * SynIC event flags structures + */ +struct hyperv_event_flags { + DECLARE_BITMAP(flags, HV_EVENT_FLAGS_COUNT); +}; + +struct hyperv_event_flags_page { + struct hyperv_event_flags slot[HV_SINT_COUNT]; +}; + +#endif diff --git a/include/hw/hyperv/hyperv.h b/include/hw/hyperv/hyperv.h new file mode 100644 index 0000000000..597381cb01 --- /dev/null +++ b/include/hw/hyperv/hyperv.h @@ -0,0 +1,83 @@ +/* + * Hyper-V guest/hypervisor interaction + * + * Copyright (c) 2015-2018 Virtuozzo International GmbH. + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef HW_HYPERV_HYPERV_H +#define HW_HYPERV_HYPERV_H + +#include "cpu-qom.h" +#include "hw/hyperv/hyperv-proto.h" + +typedef struct HvSintRoute HvSintRoute; + +/* + * Callback executed in a bottom-half when the status of posting the message + * becomes known, before unblocking the connection for further messages + */ +typedef void (*HvSintMsgCb)(void *data, int status); + +HvSintRoute *hyperv_sint_route_new(uint32_t vp_index, uint32_t sint, + HvSintMsgCb cb, void *cb_data); +void hyperv_sint_route_ref(HvSintRoute *sint_route); +void hyperv_sint_route_unref(HvSintRoute *sint_route); + +int hyperv_sint_route_set_sint(HvSintRoute *sint_route); + +/* + * Submit a message to be posted in vcpu context. If the submission succeeds, + * the status of posting the message is reported via the callback associated + * with the @sint_route; until then no more messages are accepted. + */ +int hyperv_post_msg(HvSintRoute *sint_route, struct hyperv_message *msg); +/* + * Set event flag @eventno, and signal the SINT if the flag has changed. + */ +int hyperv_set_event_flag(HvSintRoute *sint_route, unsigned eventno); + +/* + * Handler for messages arriving from the guest via HV_POST_MESSAGE hypercall. + * Executed in vcpu context. + */ +typedef uint16_t (*HvMsgHandler)(const struct hyperv_post_message_input *msg, + void *data); +/* + * Associate @handler with the message connection @conn_id, such that @handler + * is called with @data when the guest executes HV_POST_MESSAGE hypercall on + * @conn_id. If @handler is NULL clear the association. + */ +int hyperv_set_msg_handler(uint32_t conn_id, HvMsgHandler handler, void *data); +/* + * Associate @notifier with the event connection @conn_id, such that @notifier + * is signaled when the guest executes HV_SIGNAL_EVENT hypercall on @conn_id. + * If @notifier is NULL clear the association. + */ +int hyperv_set_event_flag_handler(uint32_t conn_id, EventNotifier *notifier); + +/* + * Process HV_POST_MESSAGE hypercall: parse the data in the guest memory as + * specified in @param, and call the HvMsgHandler associated with the + * connection on the message contained therein. + */ +uint16_t hyperv_hcall_post_message(uint64_t param, bool fast); +/* + * Process HV_SIGNAL_EVENT hypercall: signal the EventNotifier associated with + * the connection as specified in @param. + */ +uint16_t hyperv_hcall_signal_event(uint64_t param, bool fast); + +static inline uint32_t hyperv_vp_index(CPUState *cs) +{ + return cs->cpu_index; +} + +void hyperv_synic_add(CPUState *cs); +void hyperv_synic_reset(CPUState *cs); +void hyperv_synic_update(CPUState *cs, bool enable, + hwaddr msg_page_addr, hwaddr event_page_addr); + +#endif |