在 2022/1/6 下午12:18, Jason Wang 写道:
在 2021/12/11 下午6:44, Vladislav Yaroshchuk 写道:
macOS provides networking API for VMs called 'vmnet.framework':
https://developer.apple.com/documentation/vmnet
We can provide its support as the new QEMU network backends which
represent three different vmnet.framework interface usage modes:
* `vmnet-shared`:
allows the guest to communicate with other guests in shared mode
and
also with external network (Internet) via NAT. Has (macOS-provided)
DHCP server; subnet mask and IP range can be configured;
* `vmnet-host`:
allows the guest to communicate with other guests in host mode.
By default has enabled DHCP as `vmnet-shared`, but providing
network unique id (uuid) can make `vmnet-host` interfaces isolated
from each other and also disables DHCP.
* `vmnet-bridged`:
bridges the guest with a physical network interface.
This backends cannot work on macOS Catalina 10.15 cause we use
vmnet.framework API provided only with macOS 11 and newer. Seems
that it is not a problem, because QEMU guarantees to work on two most
recent versions of macOS which now are Big Sur (11) and Monterey (12).
Also, we have one inconvenient restriction: vmnet.framework interfaces
can create only privileged user:
`$ sudo qemu-system-x86_64 -nic vmnet-shared`
Attempt of `vmnet-*` netdev creation being unprivileged user fails with
vmnet's 'general failure'.
This happens because vmnet.framework requires `com.apple.vm.networking`
entitlement which is: "restricted to developers of virtualization
software.
To request this entitlement, contact your Apple representative." as
Apple
documentation says:
https://developer.apple.com/documentation/bundleresources/entitlements/com_apple_vm_networking
One more note: we still have quite useful but not supported
'vmnet.framework' features as creating port forwarding rules, IPv6
NAT prefix specifying and so on.
Nevertheless, new backends work fine and tested within
`qemu-system-x86-64`
on macOS Bir Sur 11.5.2 host with such nic models:
* e1000-82545em
* virtio-net-pci
* vmxnet3
The guests were:
* macOS 10.15.7
* Ubuntu Bionic (server cloudimg)
This series partially reuses patches by Phillip Tennen:
https://patchew.org/QEMU/20210218134947.1860-1-phillip.en...@gmail.com/
So I included them signed-off line into one of the commit messages and
also here.
Applied.
Thanks
Reverted actually, though it can be built on macos but not Linux. I see
thing like:
In file included from qapi/qapi-types-net.c:15:
qapi/qapi-types-net.h:411:9: error: unknown type name
‘NetdevVmnetHostOptions’
411 | NetdevVmnetHostOptions vmnet_host;
| ^~~~~~~~~~~~~~~~~~~~~~
qapi/qapi-types-net.h:412:9: error: unknown type name
‘NetdevVmnetSharedOptions’
412 | NetdevVmnetSharedOptions vmnet_shared;
| ^~~~~~~~~~~~~~~~~~~~~~~~
qapi/qapi-types-net.h:413:9: error: unknown type name
‘NetdevVmnetBridgedOptions’
413 | NetdevVmnetBridgedOptions vmnet_bridged;
| ^~~~~~~~~~~~~~~~~~~~~~~~~
....
Thanks