Remove COMPAT_FREEBSD4/5/6/7/9 from MINIMAL and FIRECRACKER kernel configurations

FIRECRACKER is not a legacy config, so remove the really old FreeBSD
versions from it. MINIMAL has a similar history

Remove COMPAT_FREEBSD4/5/6/7/9 from MINIMAL and FIRECRACKER kernel configurations

FIRECRACKER is not a legacy config, so remove the really old FreeBSD
versions from it. MINIMAL has a similar history, and limited target
audience which has little to no overlap with really old binaries. Either
of these is really easy to get additional binary compat with the include
directive, so balance things better. Leave GENERIC alone.

PR: 231768
Signed-off-by: Henrich Hartzer <henrichhartzer@tuta.io>
Reviewed by: imp (MINIMAL), cperciva (FIRECRACKER)
Pull Request: https://github.com/freebsd/freebsd-src/pull/1228

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MINIMAL: Grow minimal to support ata, scsi and nvme

Until the boot loader automatically loads these things (including the
CAM dependency), we need to have them in the minimal kernel since they
are n

MINIMAL: Grow minimal to support ata, scsi and nvme

Until the boot loader automatically loads these things (including the
CAM dependency), we need to have them in the minimal kernel since they
are needed to boot. These aren't strictly required to be in the kernel,
since modules work, but are high enough demand items that until we sort
out boot loader automation, I'm adding them here. These devices are also
common in vm environments. The delta is relatively small in size. Once
the boot loader automation arrives, these and a lot of other things can
be trimmed. It's less than ideal, but is a good middle ground for the
moment.

Sponsored by: Netflix
Reviewed by: kevans, emaste
Differential Revision: https://reviews.freebsd.org/D45012

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sys/*/conf: do not use "../../conf/" when including std.*

Since config(8) searches sys/conf by default, there's no need to specify
the full relative path here; replace it by the filename alone.

Rev

sys/*/conf: do not use "../../conf/" when including std.*

Since config(8) searches sys/conf by default, there's no need to specify
the full relative path here; replace it by the filename alone.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1124

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sys: add conf/std.debug, generic debugging options

The new sys/conf/std.debug contains the list of debugging options
enabled by default in -CURRENT, so they don't need to be listed
individually in e

sys: add conf/std.debug, generic debugging options

The new sys/conf/std.debug contains the list of debugging options
enabled by default in -CURRENT, so they don't need to be listed
individually in every kernel config.

The enabled options are the set of all debug options which were enabled
for the GENERIC kernel on any platform. This means some architectures
now have debugging options enabled in GENERIC which weren't previously
enabled:

- amd64: [1]
- arm64: [2]
- arm: [2]. [3]
- i386: [1], [2]
- powerpc: [1], [2], [3]
- riscv: [2]

[1] ALT_BREAK_TO_DEBUGGER is now enabled.
[2] BUF_TRACKING, FULL_BUF_TRACKING, and QUEUE_MACRO_DEBUG_TRASH are now
enabled.
[3] DEADLKRES is now enabled.

While here, move the documentation for the (commented out) K*SAN options
for amd64 from GENERIC to NOTES.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1124

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amd64 & i386: enable VIMAGE in MINIMAL

VNET(9) is very useful, and is not loadable.
Enable it in MINIMAL.

Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/962

Add a COMPAT_FREEBSD14 kernel option

Use it wherever COMPAT_FREEBSD13 is currently specified.

Reviewed by: brooks, zlei
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision:

Add a COMPAT_FREEBSD14 kernel option

Use it wherever COMPAT_FREEBSD13 is currently specified.

Reviewed by: brooks, zlei
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D42100

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

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

x86: move EARLY_AP_STARTUP into DEFAULTS

EARLY_AP_STARTUP was introduced in 2016 (commit fdce57a04219) with note:

As a transition aid, the new behavior is moved under a new
kernel option (E

x86: move EARLY_AP_STARTUP into DEFAULTS

EARLY_AP_STARTUP was introduced in 2016 (commit fdce57a04219) with note:

As a transition aid, the new behavior is moved under a new
kernel option (EARLY_AP_STARTUP). This will allow the option
to be turned off if need be during initial testing. I hope to
enable this on x86 by default in a followup commit ...

It was enabled by default, but became effectively mandatory (on x86)
some time later. Move it to DEFAULTS to avoid an unbootable system if
the option is left out of a custom kernel configuration file.

Reported by: wollman
Reviewed by: jhb
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D41352

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amd64 MINIMAL: SysV IPC syscalls are loadable

Reviewed by: emaste, imp
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D39990

amd64 MINIMAL: remove UFS from compiled-in list

Reviewed by: emaste, imp
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D39990

amd64 MINIMAL config: remove statements about UFS module

All UFS options work for ufs.ko.

Reviewed by: emaste, imp
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: http

amd64 MINIMAL config: remove statements about UFS module

All UFS options work for ufs.ko.

Reviewed by: emaste, imp
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D39990

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amd64 MINIMAL config: remove sentence about acpi

On amd64 ACPI is required to boot, it cannot work as a module, and we do
not build the ACPI module for long time.

Sponsored by: The FreeBSD Foundati

amd64 MINIMAL config: remove sentence about acpi

On amd64 ACPI is required to boot, it cannot work as a module, and we do
not build the ACPI module for long time.

Sponsored by: The FreeBSD Foundation
MFC after: 1 week

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xen/efi: make Xen PV EFI clock optional

The present implementation is only for x86. Other architectures need
adjustments for querying presence of EFI.

Xen's EFI support is also quite troublesome o

xen/efi: make Xen PV EFI clock optional

The present implementation is only for x86. Other architectures need
adjustments for querying presence of EFI.

Xen's EFI support is also quite troublesome on non-x86. This is being
slowly remedied, but until in better shape the EFI clock functionality
should be disabled.

Reviewed by: royger
Differential Revision: https://reviews.freebsd.org/D31065

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MINIMAL: Update and clean up.

* Add GEOM_LABEL, required to boot a default UEFI install.

* Add enough of virtio to boot in bhyve.

* Reduce diff between amd64 and i386.

* Reduce diff to GENERIC.

MINIMAL: Update and clean up.

* Add GEOM_LABEL, required to boot a default UEFI install.

* Add enough of virtio to boot in bhyve.

* Reduce diff between amd64 and i386.

* Reduce diff to GENERIC.

MFC after: 1 week
Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D38468

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MIMIMAL: add uart

While uart could be detected completely through plug and play means, add
it here for two reasons. First, we don't do that from the loader, so
it's not available as a console. Secon

MIMIMAL: add uart

While uart could be detected completely through plug and play means, add
it here for two reasons. First, we don't do that from the loader, so
it's not available as a console. Second, even if we did do it from the
loader, there's a limitation in the system today that console drivers
must be compiled into the kernel because the console is selected before
external modules are linked into the kernel. Adding it only increases
the kernel size by ~14k as well.

Sponsored by: Netflix
Idea liked by: des, rpokala, brooks, jhb

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x86 GENERIC/MINIMAL: group sc(4) devices together

The vga and splash devices are part of the sc(4) system console. vt(4)
uses the vt_vga driver instead, and has some limited splash support
directly

x86 GENERIC/MINIMAL: group sc(4) devices together

The vga and splash devices are part of the sc(4) system console. vt(4)
uses the vt_vga driver instead, and has some limited splash support
directly in vt_core.c. Leave the sc(4) options in GENERIC/MINIMAL (for
now) but group them together under an sc(4) comment.

Sponsored by: The FreeBSD Foundation

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Remove options VESA from x86 MINIMAL

Followup to b8cf1c5c30a5, remove from MINIMAL in addition to GENERIC.

options VESA / vesa.ko provides VESA Bios Extensions (VBE) support for
the legacy sc(4) co

Remove options VESA from x86 MINIMAL

Followup to b8cf1c5c30a5, remove from MINIMAL in addition to GENERIC.

options VESA / vesa.ko provides VESA Bios Extensions (VBE) support for
the legacy sc(4) console. It is not used by the default console, vt(4).

PR: 253733
Fixes: b8cf1c5c30a5 ("Remove options VESA from x86 GENERIC")
Relnotes: Yes
Sponsored by: The FreeBSD Foundation

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Correct syscons description in i386 and amd64 configs

Commit 2d6f6d63733d switched to vt(4) as the default console.

Sponsored by: The FreeBSD Foundation

Add a COMPAT_FREEBSD13 kernel option

Use it wherever COMPAT_FREEBSD11 is currently specified.

Reviewed by: jhb (previous version)
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential

Add a COMPAT_FREEBSD13 kernel option

Use it wherever COMPAT_FREEBSD11 is currently specified.

Reviewed by: jhb (previous version)
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D33005

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tcp: better congestion control defaults

Define CC_NEWRENO in all the appropriate DEFAULTS and std.* config
files. It's the default congestion control algorithm. Add code to cc.c
so that CC_DEFAULT

tcp: better congestion control defaults

Define CC_NEWRENO in all the appropriate DEFAULTS and std.* config
files. It's the default congestion control algorithm. Add code to cc.c
so that CC_DEFAULT is "newreno" if it's not overriden in the config
file.

Sponsored by: Netflix
Fixes: b8d60729deef ("tcp: Congestion control cleanup.")
Revired by: manu, hselasky, jhb, glebius, tuexen
Differential Revision: https://reviews.freebsd.org/D32964

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Update MINIMAL to have CC options

The MINIMAL configs were overlooked. They are compiled as part of
universe, so this broke universe builds. Add the same defafults as for
GENERIC.

Sponsored by: Ne

Update MINIMAL to have CC options

The MINIMAL configs were overlooked. They are compiled as part of
universe, so this broke universe builds. Add the same defafults as for
GENERIC.

Sponsored by: Netflix

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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

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xen/timer: fix amd64 LINT kernel build

On amd64 XENHVM depends on the xentimer device for PVH early startup,
so both should be added or removed together (like the current
dependency with xenpci). Fi

xen/timer: fix amd64 LINT kernel build

On amd64 XENHVM depends on the xentimer device for PVH early startup,
so both should be added or removed together (like the current
dependency with xenpci). Fix this by adding xentimer to NOTES and
updating the comments on the config files. Note that on i386 there's
no such dependency between xentimer and XENHVM, since there's no PVH
support.

While there also fix the MINIMAL i386 build to include the xentimer,
so it keeps the same functionality as before xentimer was split from
XENHVM.

Reported by: lwhsu
PR: 257549
Fixes: ae5981274815 ('xen/timer: make xen timer optional')

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MINIMAL: remove debugging and some loadable network modules

Remove deugging stuff, since it's arguably not needed in a minimal
setup. Also vlan, tuntap and gif since they can be loaded.

imp didn't

MINIMAL: remove debugging and some loadable network modules

Remove deugging stuff, since it's arguably not needed in a minimal
setup. Also vlan, tuntap and gif since they can be loaded.

imp didn't include the part of the patch that removed xen guest support.
Xen guest is relatively small and has no way of being loaded.

Reviewed by: imp
PR: 229564
MFC After: 3 days

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sys/*/conf/*, docs: fix links to handbook

While here, fix all links to older en_US.ISO8859-1 documentation
in the src/ tree.

PR: 255026
Reported by: Michael Büker <freebsd@michael-bu

sys/*/conf/*, docs: fix links to handbook

While here, fix all links to older en_US.ISO8859-1 documentation
in the src/ tree.

PR: 255026
Reported by: Michael Büker <freebsd@michael-bueker.de>
Reviewed by: dbaio
Approved by: blackend (mentor), re (gjb)
MFC after: 10 days
Differential Revision: https://reviews.freebsd.org/D30265

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