usr.sbin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

usr.sbin: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of

spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD

The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

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When this code was introduced at r300829 the author forgot to add
the BSD license header that is the same as in its C header file.

MFC after: 4 weeks.
Sponsored by: iXsystems Inc.

Merge ^/head r318658 through r318963.

bhyvegc_resize: make use of reallocarray(3) for bounds-checking.

Also add __FBSDID.

Reviewed by: grehan

This file lacks a license(!) so for this change the following declaration
applies:

To the g

bhyvegc_resize: make use of reallocarray(3) for bounds-checking.

Also add __FBSDID.

Reviewed by: grehan

This file lacks a license(!) so for this change the following declaration
applies:

To the greatest extent permitted by, but not in contravention of,
applicable law, Affirmer hereby overtly, fully, permanently, irrevocably
and unconditionally waives, abandons, and surrenders all of Affirmer's
Copyright and Related Rights and associated claims and causes of action,
whether now known or unknown (including existing as well as future claims
and causes of action).

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Import bhyve_graphics into CURRENT. Thanks to all who tested
this on the branch.

Original commit message:
Initial bhyve native graphics support.

This adds emulations for a raw framebuffer devic

Import bhyve_graphics into CURRENT. Thanks to all who tested
this on the branch.

Original commit message:
Initial bhyve native graphics support.

This adds emulations for a raw framebuffer device, PS2 keyboard/mouse,
XHCI USB controller and a USB tablet.

A simple VNC server is provided for keyboard/mouse input, and graphics
output.

A VGA emulation is included, but is currently disconnected until an
additional bhyve change to block out VGA memory is committed.

Credits:
- raw framebuffer, VNC server, XHCI controller, USB bus/device emulation
and UEFI f/w support by Leon Dang
- VGA, console/g, initial VNC server by tychon@
- PS2 keyboard/mouse jointly done by tychon@ and Leon Dang
- hypervisor framebuffer mem support by neel@

Tested by: Michael Dexter, in a number of revisions of this code.

With the appropriate UEFI image, FreeBSD, Windows and Linux guests can
installed and run in graphics mode using the UEFI/GOP framebuffer.

Approved by: re (gjb)

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