Re: [PATCH v5 03/13] libvhost-user: mask F_INFLIGHT

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Re: [PATCH v5 03/13] libvhost-user: mask F_INFLIGHT_SHMFD if memfd is no

From:	David Hildenbrand
Subject:	Re: [PATCH v5 03/13] libvhost-user: mask F_INFLIGHT_SHMFD if memfd is not supported
Date:	Thu, 23 May 2024 17:00:27 +0200
User-agent:	Mozilla Thunderbird

On 23.05.24 16:55, Stefano Garzarella wrote:

libvhost-user will panic when receiving VHOST_USER_GET_INFLIGHT_FD
message if MFD_ALLOW_SEALING is not defined, since it's not able
to create a memfd.

VHOST_USER_GET_INFLIGHT_FD is used only if
VHOST_USER_PROTOCOL_F_INFLIGHT_SHMFD is negotiated. So, let's mask
that feature if the backend is not able to properly handle these
messages.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
---


Reviewed-by: David Hildenbrand <david@redhat.com>

--
Cheers,

David / dhildenb

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[PATCH v5 00/13] vhost-user: support any POSIX system (tested on macOS, FreeBSD, OpenBSD), Stefano Garzarella, 2024/05/23
- [PATCH v5 01/13] libvhost-user: set msg.msg_control to NULL when it is empty, Stefano Garzarella, 2024/05/23
- [PATCH v5 03/13] libvhost-user: mask F_INFLIGHT_SHMFD if memfd is not supported, Stefano Garzarella, 2024/05/23
  - Re: [PATCH v5 03/13] libvhost-user: mask F_INFLIGHT_SHMFD if memfd is not supported, David Hildenbrand <=
- [PATCH v5 04/13] vhost-user-server: do not set memory fd non-blocking, Stefano Garzarella, 2024/05/23
  - Re: [PATCH v5 04/13] vhost-user-server: do not set memory fd non-blocking, David Hildenbrand, 2024/05/23
- [PATCH v5 02/13] libvhost-user: fail vu_message_write() if sendmsg() is failing, Stefano Garzarella, 2024/05/23
  - Re: [PATCH v5 02/13] libvhost-user: fail vu_message_write() if sendmsg() is failing, David Hildenbrand, 2024/05/23
- [PATCH v5 05/13] contrib/vhost-user-blk: fix bind() using the right size of the address, Stefano Garzarella, 2024/05/23
  - Re: [PATCH v5 05/13] contrib/vhost-user-blk: fix bind() using the right size of the address, David Hildenbrand, 2024/05/23
- [PATCH v5 06/13] contrib/vhost-user-*: use QEMU bswap helper functions, Stefano Garzarella, 2024/05/23
  - Re: [PATCH v5 06/13] contrib/vhost-user-*: use QEMU bswap helper functions, David Hildenbrand, 2024/05/23
- [PATCH v5 07/13] vhost-user: enable frontends on any POSIX system, Stefano Garzarella, 2024/05/23
  - Re: [PATCH v5 07/13] vhost-user: enable frontends on any POSIX system, David Hildenbrand, 2024/05/23

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