diff options
| author | Jonathan Gray <jsg@cvs.openbsd.org> | 2017-01-10 08:54:15 +0000 |
|---|---|---|
| committer | Jonathan Gray <jsg@cvs.openbsd.org> | 2017-01-10 08:54:15 +0000 |
| commit | 37f1b5d5fe9fff46d0b5fffc16c2569ae4b0b749 (patch) | |
| tree | e8351b9b8f58d178e41e90dddbd0f5ff3150591f /sys/dev/acpi/files.acpi | |
| parent | 9acc024467fd20d76335114b7d3db3e067e06245 (diff) | |
Hyper-V hosts make 64 bytes of entropy available to guests in the form
of a OEM0 ACPI table. acpihve(4) feeds this data into the kernel
entropy pool.
This is less interesting for machines with rdrand, but there are still
pre ivy bridge machines running Hyper-V (including parts of Azure).
ok mikeb@ reyk@ deraadt@ mlarkin@
Diffstat (limited to 'sys/dev/acpi/files.acpi')
| -rw-r--r-- | sys/dev/acpi/files.acpi | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sys/dev/acpi/files.acpi b/sys/dev/acpi/files.acpi index 793e623aef3..8c60193dc69 100644 --- a/sys/dev/acpi/files.acpi +++ b/sys/dev/acpi/files.acpi @@ -1,4 +1,4 @@ -# $OpenBSD: files.acpi,v 1.35 2016/08/03 17:23:38 jcs Exp $ +# $OpenBSD: files.acpi,v 1.36 2017/01/10 08:54:14 jsg Exp $ # # Config file and device description for machine-independent ACPI code. # Included by ports that need it. @@ -145,3 +145,8 @@ file dev/acpi/acpials.c acpials device tpm attach tpm at acpi file dev/acpi/tpm.c tpm + +# Hyper-V Entropy +device acpihve +attach acpihve at acpi +file dev/acpi/acpihve.c acpihve |