Virtualbox VirtIO support

[ttg-public]

According to some users VirtIO is not loaded properly under Virtualbox.

..
[   38.551818] <redpill/bios_shim.c:111> apollolake_synobios BIOS shimmed
 ... [  OK  ]
lo        Link e[   38.607768] <redpill/intercept_execve.c:87> Blocked /usr/syno/bin/syno_pstore_collect from running
ncap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

:: Starting syslogd ... [  OK  ]
:: Starting scemd
:: Starting services in backgrou[   45.842834] random: avahi-daemon: uninitialized urandom read (4 bytes read, 27 bits of entropy available)
nd
Starting fin[   46.639133] random: avahi-daemon: uninitialized urandom read (8 bytes read, 29 bits of entropy available)
dhostd in flash_rd...
Starting services in flash_rd...
Running /usr/syno/etc/rc.d/J01httpd.sh...
Starting httpd:80 in flash_rd...
Starting httpd:5000 in flash_rd...
Running /usr/syno/etc/rc.d/J03ssdpd.sh...
/usr/bin/minissdpd
Usage: /usr/bin/minissdpd [-d] [-6] [-s socket] [-p pidfile] -i <interface> [-i <interface2>] ...

  <interface> is either an IPv4 address such as 192.168.1.42, or an
interface name such as eth0.

  By default, socket will be open as /var/run/minissdpd.sock
and pid written to file /var/run/minissdpd.pid
start SSDPD failed

This is most likely caused by the DMI detection. There's no reliable way to tell the KVM in preboot, so the patch uses DMI: QEMU pattern. However virtualbox uses DMI: VirtualBox.

Reports:

• https://xpenology.com/forum/topic/45795-redpill-the-new-loader-for-624-discussion/?do=findComment&comment=209360 (ilovepancakes)
• https://xpenology.com/forum/topic/45795-redpill-the-new-loader-for-624-discussion/?do=findComment&comment=209361 (smoojay)
• https://xpenology.com/forum/topic/45795-redpill-the-new-loader-for-624-discussion/?do=findComment&comment=209400 (smoojay, log included, duplicated above)

[ttg-public]

Fixed in 5df3ace