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Tue, 18 Feb 2020 22:33:05 +0100 Subject: Re: [Qemu-devel] [PATCH] linux-user: Implement membarrier syscall To: Andreas Schwab , qemu-devel@nongnu.org References: From: Laurent Vivier Autocrypt: addr=laurent@vivier.eu; prefer-encrypt=mutual; keydata= mQINBFYFJhkBEAC2me7w2+RizYOKZM+vZCx69GTewOwqzHrrHSG07MUAxJ6AY29/+HYf6EY2 WoeuLWDmXE7A3oJoIsRecD6BXHTb0OYS20lS608anr3B0xn5g0BX7es9Mw+hV/pL+63EOCVm SUVTEQwbGQN62guOKnJJJfphbbv82glIC/Ei4Ky8BwZkUuXd7d5NFJKC9/GDrbWdj75cDNQx UZ9XXbXEKY9MHX83Uy7JFoiFDMOVHn55HnncflUncO0zDzY7CxFeQFwYRbsCXOUL9yBtqLer Ky8/yjBskIlNrp0uQSt9LMoMsdSjYLYhvk1StsNPg74+s4u0Q6z45+l8RAsgLw5OLtTa+ePM JyS7OIGNYxAX6eZk1+91a6tnqfyPcMbduxyBaYXn94HUG162BeuyBkbNoIDkB7pCByed1A7q q9/FbuTDwgVGVLYthYSfTtN0Y60OgNkWCMtFwKxRaXt1WFA5ceqinN/XkgA+vf2Ch72zBkJL RBIhfOPFv5f2Hkkj0MvsUXpOWaOjatiu0fpPo6Hw14UEpywke1zN4NKubApQOlNKZZC4hu6/ 8pv2t4HRi7s0K88jQYBRPObjrN5+owtI51xMaYzvPitHQ2053LmgsOdN9EKOqZeHAYG2SmRW LOxYWKX14YkZI5j/TXfKlTpwSMvXho+efN4kgFvFmP6WT+tPnwARAQABtCJMYXVyZW50IFZp dmllciA8bGF1cmVudEB2aXZpZXIuZXU+iQI4BBMBAgAiBQJWBTDeAhsDBgsJCAcDAgYVCAIJ CgsEFgIDAQIeAQIXgAAKCRDzDDi9Py++PCEdD/oD8LD5UWxhQrMQCsUgLlXCSM7sxGLkwmmF ozqSSljEGRhffxZvO35wMFcdX9Z0QOabVoFTKrT04YmvbjsErh/dP5zeM/4EhUByeOS7s6Yl HubMXVQTkak9Wa9Eq6irYC6L41QNzz/oTwNEqL1weV1+XC3TNnht9B76lIaELyrJvRfgsp9M rE+PzGPo5h7QHWdL/Cmu8yOtPLa8Y6l/ywEJ040IoiAUfzRoaJs2csMXf0eU6gVBhCJ4bs91 jtWTXhkzdl4tdV+NOwj3j0ukPy+RjqeL2Ej+bomnPTOW8nAZ32dapmu7Fj7VApuQO/BSIHyO NkowMMjB46yohEepJaJZkcgseaus0x960c4ua/SUm/Nm6vioRsxyUmWd2nG0m089pp8LPopq WfAk1l4GciiMepp1Cxn7cnn1kmG6fhzedXZ/8FzsKjvx/aVeZwoEmucA42uGJ3Vk9TiVdZes lqMITkHqDIpHjC79xzlWkXOsDbA2UY/P18AtgJEZQPXbcrRBtdSifCuXdDfHvI+3exIdTpvj BfbgZAar8x+lcsQBugvktlQWPfAXZu4Shobi3/mDYMEDOE92dnNRD2ChNXg2IuvAL4OW40wh gXlkHC1ZgToNGoYVvGcZFug1NI+vCeCFchX+L3bXyLMg3rAfWMFPAZLzn42plIDMsBs+x2yP +bkCDQRWBSYZARAAvFJBFuX9A6eayxUPFaEczlMbGXugs0mazbOYGlyaWsiyfyc3PStHLFPj rSTaeJpPCjBJErwpZUN4BbpkBpaJiMuVO6egrC8Xy8/cnJakHPR2JPEvmj7Gm/L9DphTcE15 92rxXLesWzGBbuYxKsj8LEnrrvLyi3kNW6B5LY3Id+ZmU8YTQ2zLuGV5tLiWKKxc6s3eMXNq wrJTCzdVd6ThXrmUfAHbcFXOycUyf9vD+s+WKpcZzCXwKgm7x1LKsJx3UhuzT8ier1L363RW ZaJBZ9CTPiu8R5NCSn9V+BnrP3wlFbtLqXp6imGhazT9nJF86b5BVKpF8Vl3F0/Y+UZ4gUwL d9cmDKBcmQU/JaRUSWvvolNu1IewZZu3rFSVgcpdaj7F/1aC0t5vLdx9KQRyEAKvEOtCmP4m 38kU/6r33t3JuTJnkigda4+Sfu5kYGsogeYG6dNyjX5wpK5GJIJikEhdkwcLM+BUOOTi+I9u tX03BGSZo7FW/J7S9y0l5a8nooDs2gBRGmUgYKqQJHCDQyYut+hmcr+BGpUn9/pp2FTWijrP inb/Pc96YDQLQA1q2AeAFv3Rx3XoBTGl0RCY4KZ02c0kX/dm3eKfMX40XMegzlXCrqtzUk+N 8LeipEsnOoAQcEONAWWo1HcgUIgCjhJhBEF0AcELOQzitbJGG5UAEQEAAYkCHwQYAQIACQUC VgUmGQIbDAAKCRDzDDi9Py++PCD3D/9VCtydWDdOyMTJvEMRQGbx0GacqpydMEWbE3kUW0ha US5jz5gyJZHKR3wuf1En/3z+CEAEfP1M3xNGjZvpaKZXrgWaVWfXtGLoWAVTfE231NMQKGoB w2Dzx5ivIqxikXB6AanBSVpRpoaHWb06tPNxDL6SVV9lZpUn03DSR6gZEZvyPheNWkvz7bE6 FcqszV/PNvwm0C5Ju7NlJA8PBAQjkIorGnvN/vonbVh5GsRbhYPOc/JVwNNr63P76rZL8Gk/ hb3xtcIEi5CCzab45+URG/lzc6OV2nTj9Lg0SNcRhFZ2ILE3txrmI+aXmAu26+EkxLLfqCVT ohb2SffQha5KgGlOSBXustQSGH0yzzZVZb+HZPEvx6d/HjQ+t9sO1bCpEgPdZjyMuuMp9N1H ctbwGdQM2Qb5zgXO+8ZSzwC+6rHHIdtcB8PH2j+Nd88dVGYlWFKZ36ELeZxD7iJflsE8E8yg OpKgu3nD0ahBDqANU/ZmNNarBJEwvM2vfusmNnWm3QMIwxNuJghRyuFfx694Im1js0ZY3LEU JGSHFG4ZynA+ZFUPA6Xf0wHeJOxGKCGIyeKORsteIqgnkINW9fnKJw2pgk8qHkwVc3Vu+wGS ZiJK0xFusPQehjWTHn9WjMG1zvQ5TQQHxau/2FkP45+nRPco6vVFQe8JmgtRF8WFJA== Message-ID: <4b3658b0-bcff-d08e-9952-eb3bd636ef6e@vivier.eu> Date: Tue, 18 Feb 2020 22:33:03 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: fr Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:BwdyeK8JA4TmNT/7dKlI3J7uzJHCxEsPWQwuerukleM1NMkyfXA 933sDKicGsgfK5+wLKPEVhDyBfzdNIKJGOF3K9N9e0Q4RmcxfZ97UOrSWShJAbiMerE6auD 0dPEuBpepFVrPkcqsXUvRWC0LjiON/BWj+6h2ZNEezuStT50Kavug2667Q6x9dmNJusC3Wg M28yCGVio+6ehZlcFo/kA== X-UI-Out-Filterresults: notjunk:1;V03:K0:0l0kx60rzm8=:x2AsJ6YSqpoWj2ZGLLoqlX yxIASoR6pm2sgxkPltIIcDVtVKjwkBrW0Gb1VatYs4P4RlHcFApr6kQcuVL02fOLfei2XOGHN SgDHRqI+J9pcvdV6E5Rx61kfbbJ+ZRSrtX8sw3qt7Ew1iN5suzBIkkqiHXaJEgr++aA9dPI5V WAV2ad1JzClH+oKqwKWArRXEfvwyWvtVDenYBNetdUYTnJ6cBZXsdyxsYdh5NIjXIIuTB+CQL pu6u415fGuz2lB4rfrmLDtS5REMT64IWfADLNdhjXpS6gbZ+9giOEyXa3pPpDzRmOhbPn3jFA My7h0Yf/9qcNceKDJqZ3+gkZ7Wu7KPoDeWdZcYv5v7cW0kv56Sbm/Vnbg4aiivm74/KKBT7LI UHT7rQrx3gT5uNv/6AJ5Mww1GRIorLEKQZtaNv1qdMQYNEC9ySDVdcmw9FTKt7fF9nx6cSQek jSPtHPXLZnfBrOWv6Jh3igfj70VdphQG/VX90PP4rAwyElwSskMYUYh5TdHrGUCuuW7/ymSRy CjwrtZ+d5kwqf4wBtPLZYdZXmE0rCGU++wQv5I/pIfEWOWlKUFL6+P3Tot92WvPkuPIy1/vhv YOhDPHP0ryX9MkumNTNo8MvHZQN1Nrg9LogyxuvAW2DxlJtBDWXJVTD/Tmyhj4tCPztSQbr8U O6LToy3b/3K+X/Lh1Uj0zDW4WtNNJWafFTztYR8W8qBWzUGrovvsB5jCizD0wyzBPBGm4V/d7 4K7wHpUlkEZu5fOxmraqXLwfmxontDnD/K9Cl91uTeHyKdUZcGDeZ4j+Vw08biqO8HvXgEkg6 Gaf5WD/GvuLYvqdCr1yaYJTj0aoZT+gi6EqLdszBYlUJq0S6xtl4NSzbmMFX9dqD4d4ParD X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.227.126.187 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Riku Voipio Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Le 13/05/2019 à 11:02, Andreas Schwab a écrit : > Signed-off-by: Andreas Schwab > --- > linux-user/syscall.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/linux-user/syscall.c b/linux-user/syscall.c > index f5ff6f5dc8..80399f4eb0 100644 > --- a/linux-user/syscall.c > +++ b/linux-user/syscall.c > @@ -313,6 +313,9 @@ _syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags) > _syscall5(int, kcmp, pid_t, pid1, pid_t, pid2, int, type, > unsigned long, idx1, unsigned long, idx2) > #endif > +#if defined(TARGET_NR_membarrier) && defined(__NR_membarrier) > +_syscall2(int, membarrier, int, cmd, int, flags) > +#endif > > static bitmask_transtbl fcntl_flags_tbl[] = { > { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, > @@ -11620,6 +11623,10 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, > /* PowerPC specific. */ > return do_swapcontext(cpu_env, arg1, arg2, arg3); > #endif > +#if defined TARGET_NR_membarrier && defined __NR_membarrier > + case TARGET_NR_membarrier: > + return get_errno(membarrier(arg1, arg2)); > +#endif > > default: > qemu_log_mask(LOG_UNIMP, "Unsupported syscall: %d\n", num); > Applied to my linux-user branch. Thanks, Laurent