hyperv/vmbus: Reorganize vmbus device tree

For GEN1 Hyper-V, vmbus is attached to pcib0, which contains the
resources for PCI passthrough and SR-IOV. There is no
acpi_syscontainer0 on GEN1 Hyper-V.

hyperv/vmbus: Reorganize vmbus device tree

For GEN1 Hyper-V, vmbus is attached to pcib0, which contains the
resources for PCI passthrough and SR-IOV. There is no
acpi_syscontainer0 on GEN1 Hyper-V.

For GEN2 Hyper-V, vmbus is attached to acpi_syscontainer0, which
contains the resources for PCI passthrough and SR-IOV. There is
no pcib0 on GEN2 Hyper-V.

The ACPI VMBUS device now only holds its _CRS, which is empty as
of this commit; its existence is mainly for upward compatibility.

Device tree structure is suggested by jhb@.

Tested-by: dexuan@
Collabrated-wth: dexuan@
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D10565

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hyperv/vmbus: Nuke unnecessary critical sections.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8906

hyperv: Unbreak EARLY_AP_STARUP Hyper-V bootstrap by using intrhook

Properly working pause and friends are required.

MFC after: 3 days
Sponsored by: Microsoft

hyperv/vmbus: Add DEVMETHOD to map cpu to event taskq.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8658

hyperv/vmbus: Add exec cancel support for message Hypercall API.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8635

hyperv/vmbus: Add result polling support for message Hypercall API.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8634

hyperv/vmbus: Make sure that the allocated GPADL is not zero.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8631

hyperv/vmbus,pcib: unbreak build in case NEW_PCIB is undefined

vmbus_pcib requires NEW_PCIB, but in case that's not defined, we at
least shouldn't break build.

Reviewed by: sephe
Approved by: sephe

hyperv/vmbus,pcib: unbreak build in case NEW_PCIB is undefined

vmbus_pcib requires NEW_PCIB, but in case that's not defined, we at
least shouldn't break build.

Reviewed by: sephe
Approved by: sephe (mentor)
MFC after: 3 days
Sponsored by: Microsoft

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hyperv/vmbus,pcib: Add MODULE_DEPEND on pci

We'd better add this dependency explicitly, though usually the pci
driver is built into the kernel by default.

Reviewed by: sephe
Approved by: sephe (men

hyperv/vmbus,pcib: Add MODULE_DEPEND on pci

We'd better add this dependency explicitly, though usually the pci
driver is built into the kernel by default.

Reviewed by: sephe
Approved by: sephe (mentor)
MFC after: 1 week
Sponsored by: Microsoft

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hyperv/vmbus: add new vmbus methods to support PCIe pass-through

The new methods will be used by the coming pcib driver.

Reviewed by: sephe
Approved by: sephe (mentor)
MFC after: 1 week
Sponsored b

hyperv/vmbus: add new vmbus methods to support PCIe pass-through

The new methods will be used by the coming pcib driver.

Reviewed by: sephe
Approved by: sephe (mentor)
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8409

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hyperv/vmbus: add a new method to get vcpu_id

vcpu_id is host's representation of guest CPU.
We get the mapping between vcpu_id and FreeBSD kernel's cpu id when VMBus
driver is loaded. Later, when a

hyperv/vmbus: add a new method to get vcpu_id

vcpu_id is host's representation of guest CPU.
We get the mapping between vcpu_id and FreeBSD kernel's cpu id when VMBus
driver is loaded. Later, when a driver, like the coming pcib driver, talks
to the host and needs to refer to a guest CPU, the driver must use the
vcpu_id.

Reviewed by: jhb, sephe
Approved by: sephe (mentor)
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8410

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hyperv/vmbus: Reset ch_dev, once the child is deleted.

So it will not be mis-used later on, e.g. in vmbus_chan_printf().

Submitted by: dexuan
Reported by: dexuan
MFC after: 1 week
Sponsored by: Mic

hyperv/vmbus: Reset ch_dev, once the child is deleted.

So it will not be mis-used later on, e.g. in vmbus_chan_printf().

Submitted by: dexuan
Reported by: dexuan
MFC after: 1 week
Sponsored by: Microsoft

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hyperv/vmbus: Add missing white space.

Submitted by: QianYue You <t-youqi microsoft com>
MFC after: 1 week
Sponsored by: Microsoft

hyperv/vmbus: Add dynamic device add and remove support

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8008

hyperv/vmbus: Use xact APIs to implement post message Hypercall APIs

Avoid code duplication.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7458

hyperv/vmbus: Revoke unnecessary exposure of vmbus softc

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7348

hyperv/vmbus: Move driver glue to the beginning of the files

Just as most of other drivers do. And move sysinit function close
to its SYSINIT.

MFC after: 1 week
Sponsored by: Microsoft
Differentia

hyperv/vmbus: Move driver glue to the beginning of the files

Just as most of other drivers do. And move sysinit function close
to its SYSINIT.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7347

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hyperv/vmbus: Forward declare static functions

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7346

hyperv/vmbus: Inclusion cleanup

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7334

hyperv/vmbus: Rename hv_vmbus_priv.h to vmbus_brvar.h

It only contains bufring related bits for a while.

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebs

hyperv/vmbus: Rename hv_vmbus_priv.h to vmbus_brvar.h

It only contains bufring related bits for a while.

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7281

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hyperv: hv_vmbus_channel -> vmbus_channel

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7260

hyperv/vmbus: Channel struct field rename

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7242

hyperv/vmbus: Set vcpuid to 0, if MSR_HV_VP_INDEX does not exist.

Mainly for compatibility. While I'm here, rename cpuid related
fields in hv_vmbus_channel.

MFC after: 1 week
Sponsored by: Microso

hyperv/vmbus: Set vcpuid to 0, if MSR_HV_VP_INDEX does not exist.

Mainly for compatibility. While I'm here, rename cpuid related
fields in hv_vmbus_channel.

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7141

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hyperv/vmbus: Function rename

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7129

hyperv/vmbus: Move bus related message processing into vmbus.

MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D7125