guestrpc module to handle VMware backdoor port GuestRPC functionality

Convert existing FreeBSD vmware_hvcall function to take a channel
and parameter arguments.

Added vmware_guestrpc_cmd() to send

guestrpc module to handle VMware backdoor port GuestRPC functionality

Convert existing FreeBSD vmware_hvcall function to take a channel
and parameter arguments.

Added vmware_guestrpc_cmd() to send GuestRPC commands to the VMware
hypervisor. The sbuf argument is used for both the command to send
and to store the data to return to the caller.

The following KPIs can be used to get and set FreeBSD-specific guest
information in key/value pairs:
* vmware_guestrpc_set_guestinfo
- set a value into the guestinfo.fbsd.<keyword> key
* vmware_guestrpc_get_guestinfo
- get the value stored in the guestinfo.fbsd.<keyword> key

Add VMware devices to x86 NOTES

Reviewed by: jhb
Obtained from: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D44528

show more ...

files.x86: Pull in some more duplicate lines from files.{amd64,i386}

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D44759

x86/ucode: add support for early loading of CPU ucode on AMD.

Sponsored by: Netflix
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D43318

Add atopcase, the Apple HID over SPI input driver

The driver provides support for Human Interface Devices (HID) on
Serial Peripheral Interface (SPI) buses on Apple Intel Macs
produced in 2015-2018.

Add atopcase, the Apple HID over SPI input driver

The driver provides support for Human Interface Devices (HID) on
Serial Peripheral Interface (SPI) buses on Apple Intel Macs
produced in 2015-2018.

The driver appears to work more stable after installation of Darwin OSI
in acpi(4) driver.
To install Darwin OSI insert following lines into /boot/loader.conf:

hw.acpi.install_interface="Darwin"
hw.acpi.remove_interface="Windows 2009, Windows 2012"

Reviewed by: wulf
Differential revision: https://reviews.freebsd.org/D39863

show more ...

sys: Remove $FreeBSD$: one-line sh pattern

Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/

ipmi: add Block Transfer interface support

Reviewed by: ambrisko
Obtained from: Yandex LLC
MFC after: 2 weeks
Sponsored by: Yandex LLC
Differential Revision: https://reviews.freebsd.org/D40421

intelspi: add PCI attachment (Lynx/Wildcat/Sunrise Point)

Also adds fixups and cleanups:

- apply the child's mode/speed
- implement suspend/resume support
- use RF_SHAREABLE interrupts
- use bus_de

intelspi: add PCI attachment (Lynx/Wildcat/Sunrise Point)

Also adds fixups and cleanups:

- apply the child's mode/speed
- implement suspend/resume support
- use RF_SHAREABLE interrupts
- use bus_delayed_attach_children since the transfer can use interrupts
- add support for newly added spibus features (cs_delay and flags)

Operation tested on Broadwell (Wildcat Point) MacBookPro12,1.
Attachment also tested on Kaby Lake (Sunrise Point) Pixelbook.

Reviewed by: wulf
MFC after: 1 month
Differential revision: https://reviews.freebsd.org/D29249

show more ...

xen/intr: move sys/x86/xen/xen_intr.c to sys/dev/xen/bus/

The event channel source code or equivalent is needed on all
architectures. Since much of this is viable to share, get this moved out
of x8

xen/intr: move sys/x86/xen/xen_intr.c to sys/dev/xen/bus/

The event channel source code or equivalent is needed on all
architectures. Since much of this is viable to share, get this moved out
of x86-land. Each interrupt interface then needs a distinct back-end
implementation.

Reviewed by: royger
Submitted by: Elliott Mitchell <ehem+freebsd@m5p.com>
Original implementation: Julien Grall <julien@xen.org>, 2014-01-13 17:41:04
Differential Revision: https://reviews.freebsd.org/D30236

show more ...

xen/intr: adjust xen_intr_handle_upcall() to match driver filter

xen_intr_handle_upcall() has two interfaces. It needs to be called by
the x86 assembly code invoked by the APIC. Second, it needs t

xen/intr: adjust xen_intr_handle_upcall() to match driver filter

xen_intr_handle_upcall() has two interfaces. It needs to be called by
the x86 assembly code invoked by the APIC. Second, it needs to be called
as a driver_filter_t for the XenPCI code and for architectures besides
x86.

Unfortunately the driver_filter_t interface was implemented as a wrapper
around the x86-APIC interface. Now create a simple wrapper for the
x86-APIC code, which calls an architecture-independent
xen_intr_handle_upcall().

When called via intr_event_handle(), driver_filter_t functions expect
preemption to be disabled. This removes the need for
critical_enter()/critical_exit() when called this way.

The lapic_eoi() call is only needed on x86 in some cases when invoked
directly as an APIC vector handler.

Additionally driver_filter_t functions have no need to handle interrupt
counters. The intrcnt_add() calling function was reworked to match the
current situation. intrcnt_add() is now only called via one path.

The increment/decrement of curthread->td_intr_nesting_level had
previously been left out. Appears this was mostly harmless, but this
was noticed during implementation and has been added.

CONFIG_X86 is a leftover from use with Linux. While the barrier isn't
needed for FreeBSD on x86, it will be needed for FreeBSD on other
architectures.

Copyright note. xen_intr_intrcnt_add() was introduced at 76acc41fb7c7
by Justin T. Gibbs. xen_intrcnt_init() was introduced at fd036deac1695
by John Baldwin.

sys/x86/xen/xen_arch_intr.c was originally created by Julien Grall in
2015 for the purpose of holding the x86 interrupt interface. Later it
was found xen_intr_handle_upcall() was better earlier, and the x86
interrupt interface better later. As such the filename and header list
belong to Julien Grall, but what those were created for is later.

Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D30006

show more ...

abstract out the vm detection via smbios..

This makes the detection of VMs common between platforms that
have SMBios.

Reviewed by: imp, kib
Differential Revision: https://reviews.freebsd.org/D38800

hv_hid: Hyper-V HID driver

Hyper-V HID driver using hidbus/hms.

Reviewed by: wulf
MFC after: 1 week
PR: 221074
Differential revision: https://reviews.freebsd.org/D38140

Complete retire cp(4)

Sponsored by: The FreeBSD Foundation

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

show more ...

Import an optimized str{n}cmp on arm64

These are from the Arm Optimized Routines and don't use the VFP so are
safe to use in the kernel.

Sponsored by: The FreeBSD Foundation

x86: remove MP_WATCHDOG

It does not work with ULE, which is the default scheduler for over a
decade.

Reviewed by: emaste, kib
Differential Revision: https://reviews.freebsd.org/D36094

qat: Rename to qat_c2xxx and remove support for modern chipsets

A replacement QAT driver will be imported, but this replacement does not
support Atom C2xxx hardware. So, the existing driver will be

qat: Rename to qat_c2xxx and remove support for modern chipsets

A replacement QAT driver will be imported, but this replacement does not
support Atom C2xxx hardware. So, the existing driver will be kept
around to provide opencrypto offload support for those chipsets.

Reviewed by: pauamma, emaste
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35817

show more ...

isci: Disable set but unused warnings.

x86/apic: remove apic_ops

All supported Xen instances by FreeBSD provide a local APIC
implementation, so there's no need to replace the native local APIC
implementation anymore.

Leave just the ipi_

x86/apic: remove apic_ops

All supported Xen instances by FreeBSD provide a local APIC
implementation, so there's no need to replace the native local APIC
implementation anymore.

Leave just the ipi_vectored hook in order to be able to override it
with an implementation based on event channels if the underlying local
APIC is not virtualized by hardware. Note the hook cannot use ifuncs,
because at the point where ifuncs are resolved the kernel doesn't yet
know whether it will benefit from using the optimization.

Sponsored by: Citrix Systems R&D
Reviewed by: kib
Differential revision: https://reviews.freebsd.org/D33917

show more ...

pchtherm: Let the driver be compiled into the kernel

PR: 259776
MFC after: 1 week

Retire synchronous PPP kernel driver sppp(4).

The last two drivers that required sppp are cp(4) and ce(4).

These devices are still produced and can be purchased
at Cronyx <http://cronyx.ru/hardware

Retire synchronous PPP kernel driver sppp(4).

The last two drivers that required sppp are cp(4) and ce(4).

These devices are still produced and can be purchased
at Cronyx <http://cronyx.ru/hardware/wan.html>.

Since Roman Kurakin <rik@FreeBSD.org> has quit them, they no
longer support FreeBSD officially. Later they have dropped
support for Linux drivers to. As of mid-2020 they don't even
have a developer to maintain their Windows driver. However,
their support verbally told me that they could provide aid to
a FreeBSD developer with documentaion in case if there appears
a new customer for their devices.

These drivers have a feature to not use sppp(4) and create an
interface, but instead expose the device as netgraph(4) node.
Then, you can attach ng_ppp(4) with help of ports/net/mpd5 on
top of the node and get your synchronous PPP. Alternatively
you can attach ng_frame_relay(4) or ng_cisco(4) for HDLC.
Actually, last time I used cp(4) back in 2004, using netgraph(4)
instead of sppp(4) was already the right way to do.

Thus, remove the sppp(4) related part of the drivers and enable
by default the negraph(4) part. Further maintenance of these
drivers in the tree shouldn't be a big deal.

While doing that, remove some cruft and enable cp(4) compilation
on amd64. The ce(4) for some unknown reason marks its internal
DDK functions with __attribute__ fastcall, which most likely is
safe to remove, but without hardware I'm not going to do that, so
ce(4) remains i386-only.

Reviewed by: emaste, imp, donner
Differential Revision: https://reviews.freebsd.org/D32590
See also: https://reviews.freebsd.org/D23928

show more ...

x86: duplicate acpi_wakeup.c per i386 and amd64

The file as is is the maze of #ifdef passages, all slightly different.
Divorcing i386 and amd64 version actually makes changing the code
easier, also

x86: duplicate acpi_wakeup.c per i386 and amd64

The file as is is the maze of #ifdef passages, all slightly different.
Divorcing i386 and amd64 version actually makes changing the code
easier, also no changes for i386 are planned.

Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D31931

show more ...

Microsoft Azure Network Adapter(MANA) VF support

MANA is the new network adapter from Microsoft which will be available
in Azure public cloud. It provides SRIOV NIC as virtual function to
guest OS r

Microsoft Azure Network Adapter(MANA) VF support

MANA is the new network adapter from Microsoft which will be available
in Azure public cloud. It provides SRIOV NIC as virtual function to
guest OS running on Hyper-V.

The code can be divided into two major parts. Gdma_main.c is the one to
bring up the hardware board and drives all underlying hardware queue
infrastructure. Mana_en.c contains all main ethernet driver code.
It has only tested and supported on amd64 architecture.

PR: 256336
Reviewed by: decui@microsoft.com
Tested by: whu
MFC after: 2 week
Relnotes: yes
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D31150

show more ...

kvm_clock: KVM paravirtual clock support

Add support for the KVM paravirtual clock device.

Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Reviewed by: kib
Differential Revision: htt

kvm_clock: KVM paravirtual clock support

Add support for the KVM paravirtual clock device.

Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D29733

show more ...

x86: files: Make sys/x86/x86/pvclock.c optional

Make inclusion of `sys/x86/x86/pvclock.c` contingent on that of its
dependents.

Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Review

x86: files: Make sys/x86/x86/pvclock.c optional

Make inclusion of `sys/x86/x86/pvclock.c` contingent on that of its
dependents.

Sponsored by: Juniper Networks, Inc.
Sponsored by: Klara, Inc.
Reviewed by: markj
Differential Revision: https://reviews.freebsd.org/D31417

show more ...

xen: move x86/xen/xenpv.c to dev/xen/bus/xenpv.c

Minor changes are necessary to make this processor-independent, but
moving the file out of x86 and into common is the first step (so
others don't add

xen: move x86/xen/xenpv.c to dev/xen/bus/xenpv.c

Minor changes are necessary to make this processor-independent, but
moving the file out of x86 and into common is the first step (so
others don't add /more/ x86-isms).

Submitted by: Elliott Mitchell <ehem+freebsd@m5p.com>
Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D29042

show more ...