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| author | ShengYi Hung <aokblast@FreeBSD.org> | 2025-08-22 14:55:45 +0000 |
|---|---|---|
| committer | ShengYi Hung <aokblast@FreeBSD.org> | 2025-08-25 15:45:24 +0000 |
| commit | 2b74ff5fceb6623f6114ce39baee9f6ec5f79277 (patch) | |
| tree | 26f4feeeccbdbe6d5c17e4d8cc5fcf42fc7338c9 /sys/modules/gem | |
| parent | 2765d8d5bc4a2ec4288e29c2405fdd65d1a48b6b (diff) | |
The intel 6300ESB watchdog is a special ICH-based watchdog device with a
different interface.
QEMU implements this watchdog for x86 systems.
This change enables watchdog mode (rather than free-running mode) and
introduces 1 sysctl:
- hw.i6300esbwd.0.locked: locks the watchdog register after the event is
triggered, preventing it from being disabled until a hard reset.
This feature has been tested on a Vultr AMD guest machine and local qemu
machine.
PR: 259673
Approved by: markj (mentor), lwhsu (mentor)
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D52049
Diffstat (limited to 'sys/modules/gem')
0 files changed, 0 insertions, 0 deletions