/* Define invalid partition identifier. */
#define HV_PARTITION_ID_INVALID ((u64)0x0)
-/* Define connection identifier type. */
-union hv_connection_id {
- u32 asu32;
- struct {
- u32 id:24;
- u32 reserved:8;
- } u;
-};
-
/* Define port identifier type. */
union hv_port_id {
u32 asu32;
u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT];
};
-/* Definition of the hv_signal_event hypercall input structure. */
-struct hv_input_signal_event {
- union hv_connection_id connectionid;
- u16 flag_number;
- u16 rsvdz;
-};
-
/*
* Versioning definitions used for guests reporting themselves to the
* hypervisor, and visa versa.
-struct hv_input_signal_event_buffer {
- u64 align8;
- struct hv_input_signal_event event;
-};
-
struct hv_context {
/* We only support running on top of Hyper-V
* So at this point this really can only contain the Hyper-V ID
bool synic_initialized;
- /*
- * 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). */
- struct hv_input_signal_event_buffer *signal_event_buffer;
- /* 8-bytes aligned of the buffer above */
- struct hv_input_signal_event *signal_event_param;
-
void *synic_message_page[NR_CPUS];
void *synic_event_page[NR_CPUS];
+ /*
+ * Hypervisor's notion of virtual processor ID is different from
+ * Linux' notion of CPU ID. This information can only be retrieved
+ * in the context of the calling CPU. Setup a map for easy access
+ * to this information:
+ *
+ * vp_index[a] is the Hyper-V's processor ID corresponding to
+ * Linux cpuid 'a'.
+ */
+ u32 vp_index[NR_CPUS];
+ /*
+ * Starting with win8, we can take channel interrupts on any CPU;
+ * we will manage the tasklet that handles events on a per CPU
+ * basis.
+ */
+ struct tasklet_struct *event_dpc[NR_CPUS];
};
extern struct hv_context hv_context;
enum hv_message_type message_type,
void *payload, size_t payload_size);
-extern u16 hv_signal_event(void);
+extern u16 hv_signal_event(void *con_id);
extern void hv_synic_init(void *irqarg);
extern void hv_synic_cleanup(void *arg);
+/*
+ * Host version information.
+ */
+extern unsigned int host_info_eax;
+extern unsigned int host_info_ebx;
+extern unsigned int host_info_ecx;
+extern unsigned int host_info_edx;
/* Interface */
int hv_ringbuffer_write(struct hv_ring_buffer_info *ring_info,
struct scatterlist *sglist,
- u32 sgcount);
+ u32 sgcount, bool *signal);
int hv_ringbuffer_peek(struct hv_ring_buffer_info *ring_info, void *buffer,
u32 buflen);
int hv_ringbuffer_read(struct hv_ring_buffer_info *ring_info,
void *buffer,
u32 buflen,
- u32 offset);
+ u32 offset, bool *signal);
-u32 hv_get_ringbuffer_interrupt_mask(struct hv_ring_buffer_info *ring_info);
void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
struct hv_ring_buffer_debug_info *debug_info);
+void hv_begin_read(struct hv_ring_buffer_info *rbi);
+
+u32 hv_end_read(struct hv_ring_buffer_info *rbi);
+
/*
* Maximum channels is determined by the size of the interrupt page
* which is PAGE_SIZE. 1/2 of PAGE_SIZE is for send endpoint interrupt
int vmbus_post_msg(void *buffer, size_t buflen);
-int vmbus_set_event(u32 child_relid);
+int vmbus_set_event(struct vmbus_channel *channel);
void vmbus_on_event(unsigned long data);