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Re: [PATCH 0/7] Add vmnet.framework based network backend
From: |
Roman Bolshakov |
Subject: |
Re: [PATCH 0/7] Add vmnet.framework based network backend |
Date: |
Thu, 12 Aug 2021 09:00:37 +0300 |
On Thu, Jun 17, 2021 at 05:32:39PM +0300, Vladislav Yaroshchuk wrote:
> macOS provides networking API for VMs called vmnet.framework.
> I tried to add it as a network backend. All three modes are supported:
>
> -shared:
> allows the guest to comminicate with other guests in shared mode and
> also with external network (Internet) via NAT
>
> -host:
> allows the guest to communicate with other guests in host mode
>
> -bridged:
> bridges the guest with a physical network interface
>
> Separate netdev for each vmnet mode was created because they use quite
> different settings, especially since macOS 11.0 when vmnet.framework
> gets a lot of updates.
>
> Not sure that I use qemu_mutex_lock_iothread() and
> qemu_mutex_unlock_iothread() in correct way while sending packet
> from vmnet interface to QEMU. I'll be happy to receive
> recomendations how to make this thing better if I done sth wrong.
>
> Also vmnet.framework requires com.apple.vm.networking entitlement to
> run without root priveledges. Ad-hoc signing does not fit there,
> so I didn't touch anything related to signing. As a result we should
> run qemu-system by a priviledged user:
> `$ sudo qemu-system-x86_64 -nic vmnet-shared`
> otherwise vmnet fails with 'general failure'.
>
> But in any way it seems working now,
> I tested it within qemu-system-x86-64 on macOS 10.15.7 host, with nic
> models:
> - e1000-82545em
> - virtio-net-pci
>
> and having such guests:
> - macOS 10.15.7
> - Ubuntu Bionic (server cloudimg)
>
Hi Vladislav,
I appreciate the efforts and I'm sorry I didn't look into it yet, lack
of time :(
To all: earlier this year another series was sent by Phillip Tennen to
add vmnet.framework and some comments were provided:
https://mail.gnu.org/archive/html/qemu-devel/2021-02/msg05874.html
I'm not sure how to proceed with arbitration which of the series is
preferred. FIFO or LIFO?
Regards,
Roman
> Vladislav Yaroshchuk (7):
> net/vmnet: dependencies setup, initial preparations
> net/vmnet: add new netdevs to qapi/net
> net/vmnet: create common netdev state structure
> net/vmnet: implement shared mode (vmnet-shared)
> net/vmnet: implement host mode (vmnet-host)
> net/vmnet: implement bridged mode (vmnet-bridged)
> net/vmnet: update qemu-options.hx
>
> configure | 31 +++++
> meson.build | 5 +
> net/clients.h | 11 ++
> net/meson.build | 7 ++
> net/net.c | 10 ++
> net/vmnet-bridged.m | 123 ++++++++++++++++++
> net/vmnet-common.m | 294 ++++++++++++++++++++++++++++++++++++++++++++
> net/vmnet-host.c | 93 ++++++++++++++
> net/vmnet-shared.c | 94 ++++++++++++++
> net/vmnet_int.h | 48 ++++++++
> qapi/net.json | 99 ++++++++++++++-
> qemu-options.hx | 17 +++
> 12 files changed, 830 insertions(+), 2 deletions(-)
> create mode 100644 net/vmnet-bridged.m
> create mode 100644 net/vmnet-common.m
> create mode 100644 net/vmnet-host.c
> create mode 100644 net/vmnet-shared.c
> create mode 100644 net/vmnet_int.h
>
> --
> 2.23.0
>