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doc/VirtualMachine.md: minor tweak to VSOCK section

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Pragmatic Software 2024-05-26 17:46:47 -07:00
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@ -335,7 +335,7 @@ Once the module is loaded, you should have the following character devices:
host$ ls -l /dev/vsock host$ ls -l /dev/vsock
crw-rw-rw- 1 root root 10, 54 May 4 11:55 /dev/vsock crw-rw-rw- 1 root root 10, 54 May 4 11:55 /dev/vsock
A VM sockets address is comprised of a context ID (CID) and a port; just like an IP address and TCP/UDP port. A VM socket address is comprised of a context ID (CID) and a port; just like an IP address and TCP/UDP port.
The CID is represented using an unsigned 32-bit integer. It identifies a given machine as either a hypervisor The CID is represented using an unsigned 32-bit integer. It identifies a given machine as either a hypervisor
or a virtual machine. Several addresses are reserved, including 0, 1, and the maximum value for a 32-bit or a virtual machine. Several addresses are reserved, including 0, 1, and the maximum value for a 32-bit
integer: 0xffffffff. The hypervisor is always assigned a CID of 2, and VMs can be assigned any CID between 3 integer: 0xffffffff. The hypervisor is always assigned a CID of 2, and VMs can be assigned any CID between 3
@ -364,7 +364,11 @@ In the VM guest (once it reboots), there should be a `/dev/vsock` device:
Add the following option to your `qemu` command-line arguments. Add the following option to your `qemu` command-line arguments.
-device {"driver":"vhost-vsock-pci","id":"vsock0","guest-cid":7,"vhostfd":"28","bus":"pci.7","addr":"0x0"} -device vhost-vsock-pci,guest-cid=$PBOTVM_CID
or
-device {"driver":"vhost-vsock-pci","id":"vsock0","guest-cid":$PBOTVM_CID,"vhostfd":"28","bus":"pci.7","addr":"0x0"}
See full QEMU command-line arguments [here.](#qemu-command-from-libvirt) See full QEMU command-line arguments [here.](#qemu-command-from-libvirt)