diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 15:00:05 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-06-03 15:00:05 -0700 |
commit | 6b2591c21273ebf65c13dae5d260ce88f0f197dd (patch) | |
tree | 9d19b72d7d9461c210b8f38e57720268bf85c96f /include | |
parent | Merge tag 'kgdb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux (diff) | |
parent | Drivers: hv: vmbus: Resolve more races involving init_vp_index() (diff) | |
download | wireguard-linux-6b2591c21273ebf65c13dae5d260ce88f0f197dd.tar.xz wireguard-linux-6b2591c21273ebf65c13dae5d260ce88f0f197dd.zip |
Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyper-v updates from Wei Liu:
- a series from Andrea to support channel reassignment
- a series from Vitaly to clean up Vmbus message handling
- a series from Michael to clean up and augment hyperv-tlfs.h
- patches from Andy to clean up GUID usage in Hyper-V code
- a few other misc patches
* tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (29 commits)
Drivers: hv: vmbus: Resolve more races involving init_vp_index()
Drivers: hv: vmbus: Resolve race between init_vp_index() and CPU hotplug
vmbus: Replace zero-length array with flexible-array
Driver: hv: vmbus: drop a no long applicable comment
hyper-v: Switch to use UUID types directly
hyper-v: Replace open-coded variant of %*phN specifier
hyper-v: Supply GUID pointer to printf() like functions
hyper-v: Use UUID API for exporting the GUID (part 2)
asm-generic/hyperv: Add definitions for Get/SetVpRegister hypercalls
x86/hyperv: Split hyperv-tlfs.h into arch dependent and independent files
x86/hyperv: Remove HV_PROCESSOR_POWER_STATE #defines
KVM: x86: hyperv: Remove duplicate definitions of Reference TSC Page
drivers: hv: remove redundant assignment to pointer primary_channel
scsi: storvsc: Re-init stor_chns when a channel interrupt is re-assigned
Drivers: hv: vmbus: Introduce the CHANNELMSG_MODIFYCHANNEL message type
Drivers: hv: vmbus: Synchronize init_vp_index() vs. CPU hotplug
Drivers: hv: vmbus: Remove the unused HV_LOCALIZED channel affinity logic
PCI: hv: Prepare hv_compose_msi_msg() for the VMBus-channel-interrupt-to-vCPU reassignment functionality
Drivers: hv: vmbus: Use a spin lock for synchronizing channel scheduling vs. channel removal
hv_utils: Always execute the fcopy and vss callbacks in a tasklet
...
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-generic/hyperv-tlfs.h | 493 | ||||
-rw-r--r-- | include/linux/hyperv.h | 68 | ||||
-rw-r--r-- | include/linux/mod_devicetable.h | 2 |
3 files changed, 524 insertions, 39 deletions
diff --git a/include/asm-generic/hyperv-tlfs.h b/include/asm-generic/hyperv-tlfs.h new file mode 100644 index 000000000000..262fae9526b1 --- /dev/null +++ b/include/asm-generic/hyperv-tlfs.h @@ -0,0 +1,493 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +/* + * This file contains definitions from Hyper-V Hypervisor Top-Level Functional + * Specification (TLFS): + * https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs + */ + +#ifndef _ASM_GENERIC_HYPERV_TLFS_H +#define _ASM_GENERIC_HYPERV_TLFS_H + +#include <linux/types.h> +#include <linux/bits.h> +#include <linux/time64.h> + +/* + * While not explicitly listed in the TLFS, Hyper-V always runs with a page size + * of 4096. These definitions are used when communicating with Hyper-V using + * guest physical pages and guest physical page addresses, since the guest page + * size may not be 4096 on all architectures. + */ +#define HV_HYP_PAGE_SHIFT 12 +#define HV_HYP_PAGE_SIZE BIT(HV_HYP_PAGE_SHIFT) +#define HV_HYP_PAGE_MASK (~(HV_HYP_PAGE_SIZE - 1)) + +/* + * Hyper-V provides two categories of flags relevant to guest VMs. The + * "Features" category indicates specific functionality that is available + * to guests on this particular instance of Hyper-V. The "Features" + * are presented in four groups, each of which is 32 bits. The group A + * and B definitions are common across architectures and are listed here. + * However, not all flags are relevant on all architectures. + * + * Groups C and D vary across architectures and are listed in the + * architecture specific portion of hyperv-tlfs.h. Some of these flags exist + * on multiple architectures, but the bit positions are different so they + * cannot appear in the generic portion of hyperv-tlfs.h. + * + * The "Enlightenments" category provides recommendations on whether to use + * specific enlightenments that are available. The Enlighenments are a single + * group of 32 bits, but they vary across architectures and are listed in + * the architecture specific portion of hyperv-tlfs.h. + */ + +/* + * Group A Features. + */ + +/* VP Runtime register available */ +#define HV_MSR_VP_RUNTIME_AVAILABLE BIT(0) +/* Partition Reference Counter available*/ +#define HV_MSR_TIME_REF_COUNT_AVAILABLE BIT(1) +/* Basic SynIC register available */ +#define HV_MSR_SYNIC_AVAILABLE BIT(2) +/* Synthetic Timer registers available */ +#define HV_MSR_SYNTIMER_AVAILABLE BIT(3) +/* Virtual APIC assist and VP assist page registers available */ +#define HV_MSR_APIC_ACCESS_AVAILABLE BIT(4) +/* Hypercall and Guest OS ID registers available*/ +#define HV_MSR_HYPERCALL_AVAILABLE BIT(5) +/* Access virtual processor index register available*/ +#define HV_MSR_VP_INDEX_AVAILABLE BIT(6) +/* Virtual system reset register available*/ +#define HV_MSR_RESET_AVAILABLE BIT(7) +/* Access statistics page registers available */ +#define HV_MSR_STAT_PAGES_AVAILABLE BIT(8) +/* Partition reference TSC register is available */ +#define HV_MSR_REFERENCE_TSC_AVAILABLE BIT(9) +/* Partition Guest IDLE register is available */ +#define HV_MSR_GUEST_IDLE_AVAILABLE BIT(10) +/* Partition local APIC and TSC frequency registers available */ +#define HV_ACCESS_FREQUENCY_MSRS BIT(11) +/* AccessReenlightenmentControls privilege */ +#define HV_ACCESS_REENLIGHTENMENT BIT(13) +/* AccessTscInvariantControls privilege */ +#define HV_ACCESS_TSC_INVARIANT BIT(15) + +/* + * Group B features. + */ +#define HV_CREATE_PARTITIONS BIT(0) +#define HV_ACCESS_PARTITION_ID BIT(1) +#define HV_ACCESS_MEMORY_POOL BIT(2) +#define HV_ADJUST_MESSAGE_BUFFERS BIT(3) +#define HV_POST_MESSAGES BIT(4) +#define HV_SIGNAL_EVENTS BIT(5) +#define HV_CREATE_PORT BIT(6) +#define HV_CONNECT_PORT BIT(7) +#define HV_ACCESS_STATS BIT(8) +#define HV_DEBUGGING BIT(11) +#define HV_CPU_POWER_MANAGEMENT BIT(12) + + +/* + * TSC page layout. + */ +struct ms_hyperv_tsc_page { + volatile u32 tsc_sequence; + u32 reserved1; + volatile u64 tsc_scale; + volatile s64 tsc_offset; +} __packed; + +/* + * The guest OS needs to register the guest ID with the hypervisor. + * The guest ID is a 64 bit entity and the structure of this ID is + * specified in the Hyper-V specification: + * + * msdn.microsoft.com/en-us/library/windows/hardware/ff542653%28v=vs.85%29.aspx + * + * While the current guideline does not specify how Linux guest ID(s) + * need to be generated, our plan is to publish the guidelines for + * Linux and other guest operating systems that currently are hosted + * on Hyper-V. The implementation here conforms to this yet + * unpublished guidelines. + * + * + * Bit(s) + * 63 - Indicates if the OS is Open Source or not; 1 is Open Source + * 62:56 - Os Type; Linux is 0x100 + * 55:48 - Distro specific identification + * 47:16 - Linux kernel version number + * 15:0 - Distro specific identification + * + * + */ + +#define HV_LINUX_VENDOR_ID 0x8100 + +/* + * Crash notification flags. + */ +#define HV_CRASH_CTL_CRASH_NOTIFY_MSG BIT_ULL(62) +#define HV_CRASH_CTL_CRASH_NOTIFY BIT_ULL(63) + +/* Declare the various hypercall operations. */ +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE 0x0002 +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST 0x0003 +#define HVCALL_NOTIFY_LONG_SPIN_WAIT 0x0008 +#define HVCALL_SEND_IPI 0x000b +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX 0x0013 +#define HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX 0x0014 +#define HVCALL_SEND_IPI_EX 0x0015 +#define HVCALL_GET_VP_REGISTERS 0x0050 +#define HVCALL_SET_VP_REGISTERS 0x0051 +#define HVCALL_POST_MESSAGE 0x005c +#define HVCALL_SIGNAL_EVENT 0x005d +#define HVCALL_RETARGET_INTERRUPT 0x007e +#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE 0x00af +#define HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST 0x00b0 + +#define HV_FLUSH_ALL_PROCESSORS BIT(0) +#define HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES BIT(1) +#define HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY BIT(2) +#define HV_FLUSH_USE_EXTENDED_RANGE_FORMAT BIT(3) + +enum HV_GENERIC_SET_FORMAT { + HV_GENERIC_SET_SPARSE_4K, + HV_GENERIC_SET_ALL, +}; + +#define HV_PARTITION_ID_SELF ((u64)-1) +#define HV_VP_INDEX_SELF ((u32)-2) + +#define HV_HYPERCALL_RESULT_MASK GENMASK_ULL(15, 0) +#define HV_HYPERCALL_FAST_BIT BIT(16) +#define HV_HYPERCALL_VARHEAD_OFFSET 17 +#define HV_HYPERCALL_REP_COMP_OFFSET 32 +#define HV_HYPERCALL_REP_COMP_1 BIT_ULL(32) +#define HV_HYPERCALL_REP_COMP_MASK GENMASK_ULL(43, 32) +#define HV_HYPERCALL_REP_START_OFFSET 48 +#define HV_HYPERCALL_REP_START_MASK GENMASK_ULL(59, 48) + +/* 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 + +/* + * The Hyper-V TimeRefCount register and the TSC + * page provide a guest VM clock with 100ns tick rate + */ +#define HV_CLOCK_HZ (NSEC_PER_SEC/100) + +/* Define the number of synthetic interrupt sources. */ +#define HV_SYNIC_SINT_COUNT (16) +/* Define the expected SynIC version. */ +#define HV_SYNIC_VERSION_1 (0x1) +/* Valid SynIC vectors are 16-255. */ +#define HV_SYNIC_FIRST_VALID_VECTOR (16) + +#define HV_SYNIC_CONTROL_ENABLE (1ULL << 0) +#define HV_SYNIC_SIMP_ENABLE (1ULL << 0) +#define HV_SYNIC_SIEFP_ENABLE (1ULL << 0) +#define HV_SYNIC_SINT_MASKED (1ULL << 16) +#define HV_SYNIC_SINT_AUTO_EOI (1ULL << 17) +#define HV_SYNIC_SINT_VECTOR_MASK (0xFF) + +#define HV_SYNIC_STIMER_COUNT (4) + +/* Define synthetic interrupt controller message constants. */ +#define HV_MESSAGE_SIZE (256) +#define HV_MESSAGE_PAYLOAD_BYTE_COUNT (240) +#define HV_MESSAGE_PAYLOAD_QWORD_COUNT (30) + +/* Define synthetic interrupt controller message flags. */ +union hv_message_flags { + __u8 asu8; + struct { + __u8 msg_pending:1; + __u8 reserved:7; + } __packed; +}; + +/* Define port identifier type. */ +union hv_port_id { + __u32 asu32; + struct { + __u32 id:24; + __u32 reserved:8; + } __packed u; +}; + +/* Define synthetic interrupt controller message header. */ +struct hv_message_header { + __u32 message_type; + __u8 payload_size; + union hv_message_flags message_flags; + __u8 reserved[2]; + union { + __u64 sender; + union hv_port_id port; + }; +} __packed; + +/* Define synthetic interrupt controller message format. */ +struct hv_message { + struct hv_message_header header; + union { + __u64 payload[HV_MESSAGE_PAYLOAD_QWORD_COUNT]; + } u; +} __packed; + +/* Define the synthetic interrupt message page layout. */ +struct hv_message_page { + struct hv_message sint_message[HV_SYNIC_SINT_COUNT]; +} __packed; + +/* Define timer message payload structure. */ +struct hv_timer_message_payload { + __u32 timer_index; + __u32 reserved; + __u64 expiration_time; /* When the timer expired */ + __u64 delivery_time; /* When the message was delivered */ +} __packed; + + +/* Define synthetic interrupt controller flag constants. */ +#define HV_EVENT_FLAGS_COUNT (256 * 8) +#define HV_EVENT_FLAGS_LONG_COUNT (256 / sizeof(unsigned long)) + +/* + * Synthetic timer configuration. + */ +union hv_stimer_config { + u64 as_uint64; + struct { + u64 enable:1; + u64 periodic:1; + u64 lazy:1; + u64 auto_enable:1; + u64 apic_vector:8; + u64 direct_mode:1; + u64 reserved_z0:3; + u64 sintx:4; + u64 reserved_z1:44; + } __packed; +}; + + +/* Define the synthetic interrupt controller event flags format. */ +union hv_synic_event_flags { + unsigned long flags[HV_EVENT_FLAGS_LONG_COUNT]; +}; + +/* Define SynIC control register. */ +union hv_synic_scontrol { + u64 as_uint64; + struct { + u64 enable:1; + u64 reserved:63; + } __packed; +}; + +/* Define synthetic interrupt source. */ +union hv_synic_sint { + u64 as_uint64; + struct { + u64 vector:8; + u64 reserved1:8; + u64 masked:1; + u64 auto_eoi:1; + u64 polling:1; + u64 reserved2:45; + } __packed; +}; + +/* Define the format of the SIMP register */ +union hv_synic_simp { + u64 as_uint64; + struct { + u64 simp_enabled:1; + u64 preserved:11; + u64 base_simp_gpa:52; + } __packed; +}; + +/* Define the format of the SIEFP register */ +union hv_synic_siefp { + u64 as_uint64; + struct { + u64 siefp_enabled:1; + u64 preserved:11; + u64 base_siefp_gpa:52; + } __packed; +}; + +struct hv_vpset { + u64 format; + u64 valid_bank_mask; + u64 bank_contents[]; +} __packed; + +/* HvCallSendSyntheticClusterIpi hypercall */ +struct hv_send_ipi { + u32 vector; + u32 reserved; + u64 cpu_mask; +} __packed; + +/* HvCallSendSyntheticClusterIpiEx hypercall */ +struct hv_send_ipi_ex { + u32 vector; + u32 reserved; + struct hv_vpset vp_set; +} __packed; + +/* HvFlushGuestPhysicalAddressSpace hypercalls */ +struct hv_guest_mapping_flush { + u64 address_space; + u64 flags; +} __packed; + +/* + * HV_MAX_FLUSH_PAGES = "additional_pages" + 1. It's limited + * by the bitwidth of "additional_pages" in union hv_gpa_page_range. + */ +#define HV_MAX_FLUSH_PAGES (2048) + +/* HvFlushGuestPhysicalAddressList hypercall */ +union hv_gpa_page_range { + u64 address_space; + struct { + u64 additional_pages:11; + u64 largepage:1; + u64 basepfn:52; + } page; +}; + +/* + * All input flush parameters should be in single page. The max flush + * count is equal with how many entries of union hv_gpa_page_range can + * be populated into the input parameter page. + */ +#define HV_MAX_FLUSH_REP_COUNT ((HV_HYP_PAGE_SIZE - 2 * sizeof(u64)) / \ + sizeof(union hv_gpa_page_range)) + +struct hv_guest_mapping_flush_list { + u64 address_space; + u64 flags; + union hv_gpa_page_range gpa_list[HV_MAX_FLUSH_REP_COUNT]; +}; + +/* HvFlushVirtualAddressSpace, HvFlushVirtualAddressList hypercalls */ +struct hv_tlb_flush { + u64 address_space; + u64 flags; + u64 processor_mask; + u64 gva_list[]; +} __packed; + +/* HvFlushVirtualAddressSpaceEx, HvFlushVirtualAddressListEx hypercalls */ +struct hv_tlb_flush_ex { + u64 address_space; + u64 flags; + struct hv_vpset hv_vp_set; + u64 gva_list[]; +} __packed; + +/* HvRetargetDeviceInterrupt hypercall */ +union hv_msi_entry { + u64 as_uint64; + struct { + u32 address; + u32 data; + } __packed; +}; + +struct hv_interrupt_entry { + u32 source; /* 1 for MSI(-X) */ + u32 reserved1; + union hv_msi_entry msi_entry; +} __packed; + +/* + * flags for hv_device_interrupt_target.flags + */ +#define HV_DEVICE_INTERRUPT_TARGET_MULTICAST 1 +#define HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET 2 + +struct hv_device_interrupt_target { + u32 vector; + u32 flags; + union { + u64 vp_mask; + struct hv_vpset vp_set; + }; +} __packed; + +struct hv_retarget_device_interrupt { + u64 partition_id; /* use "self" */ + u64 device_id; + struct hv_interrupt_entry int_entry; + u64 reserved2; + struct hv_device_interrupt_target int_target; +} __packed __aligned(8); + + +/* HvGetVpRegisters hypercall input with variable size reg name list*/ +struct hv_get_vp_registers_input { + struct { + u64 partitionid; + u32 vpindex; + u8 inputvtl; + u8 padding[3]; + } header; + struct input { + u32 name0; + u32 name1; + } element[]; +} __packed; + + +/* HvGetVpRegisters returns an array of these output elements */ +struct hv_get_vp_registers_output { + union { + struct { + u32 a; + u32 b; + u32 c; + u32 d; + } as32 __packed; + struct { + u64 low; + u64 high; + } as64 __packed; + }; +}; + +/* HvSetVpRegisters hypercall with variable size reg name/value list*/ +struct hv_set_vp_registers_input { + struct { + u64 partitionid; + u32 vpindex; + u8 inputvtl; + u8 padding[3]; + } header; + struct { + u32 name; + u32 padding1; + u64 padding2; + u64 valuelow; + u64 valuehigh; + } element[]; +} __packed; + +#endif diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h index 692c89ccf5df..40df3103e890 100644 --- a/include/linux/hyperv.h +++ b/include/linux/hyperv.h @@ -117,7 +117,7 @@ struct hv_ring_buffer { * Ring data starts here + RingDataStartOffset * !!! DO NOT place any fields below this !!! */ - u8 buffer[0]; + u8 buffer[]; } __packed; struct hv_ring_buffer_info { @@ -313,7 +313,7 @@ struct vmadd_remove_transfer_page_set { struct gpa_range { u32 byte_count; u32 byte_offset; - u64 pfn_array[0]; + u64 pfn_array[]; }; /* @@ -425,7 +425,7 @@ enum vmbus_channel_message_type { CHANNELMSG_19 = 19, CHANNELMSG_20 = 20, CHANNELMSG_TL_CONNECT_REQUEST = 21, - CHANNELMSG_22 = 22, + CHANNELMSG_MODIFYCHANNEL = 22, CHANNELMSG_TL_CONNECT_RESULT = 23, CHANNELMSG_COUNT }; @@ -563,7 +563,7 @@ struct vmbus_channel_gpadl_header { u32 gpadl; u16 range_buflen; u16 rangecount; - struct gpa_range range[0]; + struct gpa_range range[]; } __packed; /* This is the followup packet that contains more PFNs. */ @@ -571,7 +571,7 @@ struct vmbus_channel_gpadl_body { struct vmbus_channel_message_header header; u32 msgnumber; u32 gpadl; - u64 pfn[0]; + u64 pfn[]; } __packed; struct vmbus_channel_gpadl_created { @@ -620,6 +620,13 @@ struct vmbus_channel_tl_connect_request { guid_t host_service_id; } __packed; +/* Modify Channel parameters, cf. vmbus_send_modifychannel() */ +struct vmbus_channel_modifychannel { + struct vmbus_channel_message_header header; + u32 child_relid; + u32 target_vp; +} __packed; + struct vmbus_channel_version_response { struct vmbus_channel_message_header header; u8 version_supported; @@ -672,7 +679,7 @@ struct vmbus_channel_msginfo { * The channel message that goes out on the "wire". * It will contain at minimum the VMBUS_CHANNEL_MESSAGE_HEADER header */ - unsigned char msg[0]; + unsigned char msg[]; }; struct vmbus_close_msg { @@ -689,11 +696,6 @@ union hv_connection_id { } u; }; -enum hv_numa_policy { - HV_BALANCED = 0, - HV_LOCALIZED, -}; - enum vmbus_device_type { HV_IDE = 0, HV_SCSI, @@ -771,6 +773,15 @@ struct vmbus_channel { void (*onchannel_callback)(void *context); void *channel_callback_context; + void (*change_target_cpu_callback)(struct vmbus_channel *channel, + u32 old, u32 new); + + /* + * Synchronize channel scheduling and channel removal; see the inline + * comments in vmbus_chan_sched() and vmbus_reset_channel_cb(). + */ + spinlock_t sched_lock; + /* * A channel can be marked for one of three modes of reading: * BATCHED - callback called from taslket and should read @@ -802,10 +813,6 @@ struct vmbus_channel { u32 target_vp; /* The corresponding CPUID in the guest */ u32 target_cpu; - /* - * State to manage the CPU affiliation of channels. - */ - struct cpumask alloced_cpus_in_node; int numa_node; /* * Support for sub-channels. For high performance devices, @@ -854,11 +861,6 @@ struct vmbus_channel { * Support per-channel state for use by vmbus drivers. */ void *per_channel_state; - /* - * To support per-cpu lookup mapping of relid to channel, - * link up channels based on their CPU affinity. - */ - struct list_head percpu_list; /* * Defer freeing channel until after all cpu's have @@ -897,19 +899,14 @@ struct vmbus_channel { */ bool low_latency; + bool probe_done; + /* - * NUMA distribution policy: - * We support two policies: - * 1) Balanced: Here all performance critical channels are - * distributed evenly amongst all the NUMA nodes. - * This policy will be the default policy. - * 2) Localized: All channels of a given instance of a - * performance critical service will be assigned CPUs - * within a selected NUMA node. + * Cache the device ID here for easy access; this is useful, in + * particular, in situations where the channel's device_obj has + * not been allocated/initialized yet. */ - enum hv_numa_policy affinity_policy; - - bool probe_done; + u16 device_id; /* * We must offload the handling of the primary/sub channels @@ -964,12 +961,6 @@ static inline bool is_sub_channel(const struct vmbus_channel *c) return c->offermsg.offer.sub_channel_index != 0; } -static inline void set_channel_affinity_state(struct vmbus_channel *c, - enum hv_numa_policy policy) -{ - c->affinity_policy = policy; -} - static inline void set_channel_read_mode(struct vmbus_channel *c, enum hv_callback_mode mode) { @@ -1017,7 +1008,7 @@ static inline void clear_low_latency_mode(struct vmbus_channel *c) c->low_latency = false; } -void vmbus_onmessage(void *context); +void vmbus_onmessage(struct vmbus_channel_message_header *hdr); int vmbus_request_offers(void); @@ -1531,6 +1522,7 @@ extern __u32 vmbus_proto_version; int vmbus_send_tl_connect_request(const guid_t *shv_guest_servie_id, const guid_t *shv_host_servie_id); +int vmbus_send_modifychannel(u32 child_relid, u32 target_vp); void vmbus_set_event(struct vmbus_channel *channel); /* Get the start of the ring buffer. */ diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h index 0754b8d71262..580e554fb6dc 100644 --- a/include/linux/mod_devicetable.h +++ b/include/linux/mod_devicetable.h @@ -434,7 +434,7 @@ struct virtio_device_id { * For Hyper-V devices we use the device guid as the id. */ struct hv_vmbus_device_id { - uuid_le guid; + guid_t guid; kernel_ulong_t driver_data; /* Data private to the driver */ }; |