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Re: [PATCH v5 47/50] multi-process: Enable support for multiple devices
From: |
Stefan Hajnoczi |
Subject: |
Re: [PATCH v5 47/50] multi-process: Enable support for multiple devices in remote |
Date: |
Fri, 28 Feb 2020 16:44:03 +0000 |
On Mon, Feb 24, 2020 at 03:55:38PM -0500, Jagannathan Raman wrote:
> From: Elena Ufimtseva <address@hidden>
>
> Add support to allow multiple devices to be configured in the
> remote process
This patch allows multiple devices to be addressed over a single UNIX
domain socket. This could be a scalability/performance bottleneck
because an SMP guest can only talk to 1 device at a time.
This approach doesn't address the qemu-storage-daemon use case where one
device emulation process provides devices to multiple guests. Multiple
UNIX domain sockets are needed for that.
Is multiplexing multiple devices over a single connection is a desirable
feature? The alternative of one UNIX domain socket per device instance
seems more practical to me because it should perform better and solves
the qemu-storage-daemon use case.
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- [PATCH v5 48/50] multi-process: Validate incoming commands from Proxy, (continued)
- [PATCH v5 48/50] multi-process: Validate incoming commands from Proxy, Jagannathan Raman, 2020/02/24
- [PATCH v5 41/50] multi-process/mig: Enable VMSD save in the Proxy object, Jagannathan Raman, 2020/02/24
- [PATCH v5 50/50] multi-process: add configure and usage information, Jagannathan Raman, 2020/02/24
- [PATCH v5 40/50] multi-process/mig: build migration module in the remote process, Jagannathan Raman, 2020/02/24
- [PATCH v5 44/50] multi-process/mig: refactor runstate_check into common file, Jagannathan Raman, 2020/02/24
- [PATCH v5 47/50] multi-process: Enable support for multiple devices in remote, Jagannathan Raman, 2020/02/24
- Re: [PATCH v5 47/50] multi-process: Enable support for multiple devices in remote,
Stefan Hajnoczi <=
- [PATCH v5 49/50] multi-process: add the concept description to docs/devel/qemu-multiprocess, Jagannathan Raman, 2020/02/24
- [PATCH v5 04/50] multi-process: Add stub functions to facilate build of multi-process, Jagannathan Raman, 2020/02/24
- Re: [PATCH v5 00/50] Initial support for multi-process qemu, no-reply, 2020/02/24
- Re: [PATCH v5 00/50] Initial support for multi-process qemu, no-reply, 2020/02/24
- Re: [PATCH v5 00/50] Initial support for multi-process qemu, no-reply, 2020/02/24