Retire non-NEW_PCIB code and remove config option

All architectures enable NEW_PCIB in DEFAULTS (arm being the most recent
to do so in 121be555997b (arm: Set NEW_PCIB in DEFAULTS rather than a
subse

Retire non-NEW_PCIB code and remove config option

All architectures enable NEW_PCIB in DEFAULTS (arm being the most recent
to do so in 121be555997b (arm: Set NEW_PCIB in DEFAULTS rather than a
subset of kernel configs")), so it's time we removed the legacy code
that no longer sees much testing and has a significant maintenance
burden.

Reviewed by: jhb, andrew, emaste
Differential Revision: https://reviews.freebsd.org/D32954

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Hyper-V: move memory alloc call for tlb hypercall out of smp_rendezvous

The allocation call could result in sleep lock violation if it is in
smp_rendezvous. Move it out. Also move the pcpu memory po

Hyper-V: move memory alloc call for tlb hypercall out of smp_rendezvous

The allocation call could result in sleep lock violation if it is in
smp_rendezvous. Move it out. Also move the pcpu memory pointer to
vmbus_pcpu_data since it is only used on Hyper-V.

PR: 279738
Reported by: gbe
Fixes: 2b887687edc25bb4553f0d8a1183f454a85d413d
MFC after: 2 weeks
Sponsored by: Microsoft

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Hyper-V: TLB flush enlightment using hypercall

Currently FreeBSD uses IPI based TLB flushing for remote
TLB flushing. Hyper-V allows hypercalls to flush local and
remote TLB. The use of Hyper-V hype

Hyper-V: TLB flush enlightment using hypercall

Currently FreeBSD uses IPI based TLB flushing for remote
TLB flushing. Hyper-V allows hypercalls to flush local and
remote TLB. The use of Hyper-V hypercalls gives significant
performance improvement in TLB operations.

This patch set during test has shown near to 40 percent
TLB performance improvement.

Also this patch adds rep hypercall implementation as well.

Reviewed by: whu, kib
Tested by: whu
Authored-by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Co-Authored-by: Erni Sri Satya Vennela <ernis@microsoft.com>
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D45521

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Hyper-V: vmbus: implementat bus_get_dma_tag in vmbus

In ARM64 Hyper-V UFS filesystem is getting corruption and those
corruptions are consistently happening just after hitting a page
boundary. It is

Hyper-V: vmbus: implementat bus_get_dma_tag in vmbus

In ARM64 Hyper-V UFS filesystem is getting corruption and those
corruptions are consistently happening just after hitting a page
boundary. It is unable to correctly read disk blocks into buffers
that are not aligned to 512-byte boundaries.

It happens because storvsc needs physically contiguous memory which
may not be the case when bus_dma needs to create a bounce buffer.
This can happen when the destination is not cache-line aligned.

Hyper-V VMs have VMbus synthetic devices and PCI pass-thru devices
that are added dynamically via the VMbus protocol and are not
represented in the ACPI DSDT. Only the top level VMbus node exists
in the DSDT. As such, on ARM64 these devices don't pick up coherence
information and default to not hardware coherent.

PR: 267654, 272666
Reviewed by: andrew, whu
Tested by: lwhsu
MFC after: 3 days
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D41728

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sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Switch to contigmalloc in the Hyper-V code

In the Hyper-V drivers we need to allocate buffers shared between the
host and guest. This memory has been allocated with bus_dma, however
it doesn't use t

Switch to contigmalloc in the Hyper-V code

In the Hyper-V drivers we need to allocate buffers shared between the
host and guest. This memory has been allocated with bus_dma, however
it doesn't use this correctly, e.g. it is missing calls to
bus_dmamap_sync. Along with this on arm64 we need this memory to be
mapped with the correct memory type that bus_dma may not use.

Switch to contigmalloc to allocate this memory as this will correctly
allocate cacheable memory.

Reviewed by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D40227

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hyperv: purge EOL release compatibility

Remove FreeBSD 11 and earlier support

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/603
Differential Revision: https://reviews.f

hyperv: purge EOL release compatibility

Remove FreeBSD 11 and earlier support

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/603
Differential Revision: https://reviews.freebsd.org/D35560

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arm64: Hyper-V: enablement for ARM64 in Hyper-V (Part 3, final)

This is the last part for ARM64 Hyper-V enablement. This includes
commone files and make file changes to enable the ARM64 FreeBSD
gues

arm64: Hyper-V: enablement for ARM64 in Hyper-V (Part 3, final)

This is the last part for ARM64 Hyper-V enablement. This includes
commone files and make file changes to enable the ARM64 FreeBSD
guest on Hyper-V. With this patch, it should be able to build
the ARM64 image and install it on Hyper-V.

Reviewed by: emaste, andrew, whu
Tested by: Souradeep Chakrabarti <schakrabarti@microsoft.com>
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D36744

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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

Merge ^/head r309213 through r309262.

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,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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Merge ^/head r308491 through r308841.

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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Merge ^/head r306303 through 306411.

hyperv/vmbus: Add dynamic device add and remove support

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

Merge ^/head r303250 through r304235.

MFhead @ r304038

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: Reindent function declarations.

MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D7344

hyperv/vmbus: Inclusion cleanup

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

hyperv: hv_vmbus_channel -> vmbus_channel

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