src/sys/dev/vmgenc, branch stable/13 FreeBSD source tree sys: Remove $FreeBSD$: one-line .c pattern 2023-08-23T17:43:25+00:00 Warner Losh imp@FreeBSD.org 2023-08-22T01:31:27+00:00 3bc80996974a61a4223eae4c1ccd47b6ee32a48a Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/ Similar commit in current: (cherry picked from commit 685dc743dc3b) 
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Similar commit in current:
(cherry picked from commit 685dc743dc3b)
sys: Remove $FreeBSD$: two-line .h pattern 2023-08-23T17:43:20+00:00 Warner Losh imp@FreeBSD.org 2023-08-22T01:31:02+00:00 f8167e0404dab9ffeaca95853dd237ab7c587f82 Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/ Similar commit in current: (cherry picked from commit 95ee2897e98f) 
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Similar commit in current:
(cherry picked from commit 95ee2897e98f)
spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD 2023-07-25T15:13:49+00:00 Warner Losh imp@FreeBSD.org 2023-05-10T15:40:58+00:00 caa41f641755c935b036e17440a3b49329c904ed The SPDX folks have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 (cherry picked from commit 4d846d260e2b9a3d4d0a701462568268cbfe7a5b) 
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

(cherry picked from commit 4d846d260e2b9a3d4d0a701462568268cbfe7a5b)
vmgenid(4): Integrate as a random(4) source 2020-01-01T00:35:02+00:00 Conrad Meyer cem@FreeBSD.org 2020-01-01T00:35:02+00:00 767991d2bed376736535f8f788007a9c3766fcaf The number is public and has no "entropy," but should be integrated quickly on VM rewind events to avoid duplicate sequences. Approved by: csprng(markm) Differential Revision: https://reviews.freebsd.org/D22946 
The number is public and has no "entropy," but should be integrated quickly
on VM rewind events to avoid duplicate sequences.

Approved by:	csprng(markm)
Differential Revision:	https://reviews.freebsd.org/D22946
Add vmgenc(4) driver for ACPI VM generation counter 2019-12-22T06:25:20+00:00 Conrad Meyer cem@FreeBSD.org 2019-12-22T06:25:20+00:00 ffac39deae0a2e50aa8d1197d15b8d0bb7e778fd The VM generation counter is a 128-bit value exposed by the BIOS via ACPI. The value changes to another unique identifier whenever a VM is duplicated. Additionally, ACPI provides notification events when such events occur. The driver decodes the pointer to the UUID, exports the value to userspace via OPAQUE sysctl blob, and forwards the ACPI notifications in the form of an EVENTHANDLER invocation as well as userspace devctl events. See design paper: https://go.microsoft.com/fwlink/p/?LinkID=260709 
The VM generation counter is a 128-bit value exposed by the BIOS via ACPI.
The value changes to another unique identifier whenever a VM is duplicated.
Additionally, ACPI provides notification events when such events occur.

The driver decodes the pointer to the UUID, exports the value to userspace
via OPAQUE sysctl blob, and forwards the ACPI notifications in the form of
an EVENTHANDLER invocation as well as userspace devctl events.

See design paper: https://go.microsoft.com/fwlink/p/?LinkID=260709