Hi,
I implemented standalone binary loader for BHyVe.
This allows to load custom program on guest memory area, and run it from
specified entry point address.
I wrote this for test code of BHyVe suspend/resume project(Yoneji Iori's
work), but it might be useful for some other purposes.
This is a patch:
http://people.freebsd.org/~syuu/bhyve_standalone_guest.diff
Most of the code is borrowed from userboot, but userboot looks like only
for FreeBSD kernel, so I copied those code to bhyveload instead of
modifying userboot APIs.
Here's a example of usage:
echo main: test.S
echo inb \$0x50, %al test.S
as -o test.o test.S
objcopy -I elf64-x86-64-freebsd -O binary test.o test.bin
sudo bhyveload -m 256 -S test.bin:0x7c00 test
sudo bhyve -m 256 -e test
# bhyve says Unhandled inb 0x0050, because there's no inb 0x50 handler.
Another example of usage:
svn co svn://svn.freebsd.org/base/user/syuu/bhyve_standalone_guest_test1
cd bhyve_standalone_guest_test1
make
make run
# because test1 is COM1 test program, bhyve continues to show asterisk on
the console.
___
freebsd-virtualization@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization
To unsubscribe, send any mail to
freebsd-virtualization-unsubscr...@freebsd.org
