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From: Mathis Marion <Mathis.Marion@silabs.com>
To: "Laurent Vivier" <laurent@vivier.eu>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Cc: qemu-devel@nongnu.org,
	"Jérôme Pouiller" <jerome.pouiller@silabs.com>,
	"Mathis Marion" <mathis.marion@silabs.com>
Subject: [PATCH v3 0/2] Missing endianness conversions in user mode
Date: Tue,  7 Mar 2023 16:42:54 +0100	[thread overview]
Message-ID: <20230307154256.101528-1-Mathis.Marion@silabs.com> (raw)

From: Mathis Marion <mathis.marion@silabs.com>

For a bit of context, I was trying to test a network border router [1]
daemon using the MIPS architecture (see [2]). I didn't have access to
real MIPS hardware so I figured I would emulate it using QEMU user mode.
I ran into a couple of problems all related to endianness conversion for
syscalls between host and target as MIPS is big endian and my x86 host
is little.

[1]: https://github.com/SiliconLabs/wisun-br-linux
[2]: https://github.com/SiliconLabs/wisun-br-linux/issues/5

v3:
- remove patches "linux-user: fix timerfd read endianness conversion"
  and "linux-user: add target to host netlink conversions" as they were
  integrated.
- remove sin6_flowinfo endianness conversion
- use NLA_TYPE_MASK instead of ~NLA_F_NESTED

v2:
- remove context from target_to_host_for_each_nlattr()

Mathis Marion (2):
  linux-user: fix sockaddr_in6 endianness
  linux-user: handle netlink flag NLA_F_NESTED

 linux-user/fd-trans.c | 4 ++--
 linux-user/syscall.c  | 5 +++++
 2 files changed, 7 insertions(+), 2 deletions(-)

-- 
2.39.2


             reply	other threads:[~2023-03-07 15:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-07 15:42 Mathis Marion [this message]
2023-03-07 15:42 ` [PATCH v3 1/2] linux-user: fix sockaddr_in6 endianness Mathis Marion
2023-03-07 15:59   ` Laurent Vivier
2023-03-07 16:07   ` Laurent Vivier
2023-03-07 16:28   ` Philippe Mathieu-Daudé
2023-03-07 15:42 ` [PATCH v3 2/2] linux-user: handle netlink flag NLA_F_NESTED Mathis Marion
2023-03-07 16:00   ` Laurent Vivier
2023-03-07 16:08   ` Laurent Vivier

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