svn commit: r359950 - head/usr.sbin/bhyve

[Shawn Webb]

On Wed, Apr 15, 2020 at 02:00:18AM +0000, Conrad Meyer wrote:
> Author: cem
> Date: Wed Apr 15 02:00:17 2020
> New Revision: 359950
> URL: https://svnweb.freebsd.org/changeset/base/359950
> 
> Log:
>   bhyve(8): Add VM Generation Counter ACPI device
>   
>   Add an implementatation of the 'Virtual Machine Generation ID' spec to
>   Bhyve.  The spec provides a randomly generated GUID (at bhyve start) in
>   device memory, along with an ACPI device with _CID VM_Gen_Counter and ADDR
>   evaluating to a Package pointing at that GUID.
>   
>   A GPE is defined which Notifies the ACPI Device when the generation changes
>   (such as when a snapshot is rolled back).  At this time, Bhyve does not
>   support snapshotting, so the GPE is never actually raised.
>   
>   Suggested by:	rpokala
>   Discussed with:	grehan
>   Differential Revision:	https://reviews.freebsd.org/D23165
> 
> Added:
>   head/usr.sbin/bhyve/vmgenc.c   (contents, props changed)
>   head/usr.sbin/bhyve/vmgenc.h   (contents, props changed)
> Modified:
>   head/usr.sbin/bhyve/Makefile
>   head/usr.sbin/bhyve/acpi.c
>   head/usr.sbin/bhyve/acpi.h
>   head/usr.sbin/bhyve/bhyverun.c
>   head/usr.sbin/bhyve/pm.c

Hey Conrad,

Something about this commit broke bhyve in UEFI mode. Reverting this
specific change caused bhyve to work again. Here's a sample command:

/usr/obj/usr/src/amd64.amd64/usr.sbin/bhyve/bhyve \
    -c 4 \
    -m 16g \
    -H \
    -A \
    -P \
    -S \
    -g 0 \
    -s 0:0,hostbridge \
    -s 1:0,lpc \
    -s 29,fbuf,tcp=127.0.0.1:5910,w=1024,h=768,wait \
    -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \
    -s 2:0,virtio-net,tap1 \
    -s 3:0,virtio-blk,/dev/zvol/rpool/bhyve/hbsd-cross-dso-cfi-01/disk-01 \
    -l com1,/dev/nmdm-hbsd-cross-dso-cfi-01-A \
    -s 31:0,ahci-cd,/ISO/HardenedBSD/12-stable_amd64/2020-04-19_disc1.iso \
    hbsd-cdcfi-01

Thanks,

-- 
Shawn Webb
Cofounder / Security Engineer
HardenedBSD

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