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Wed, 18 Feb 2026 21:22:47 -0800 (PST) From: Warner Losh Date: Wed, 18 Feb 2026 22:22:32 -0700 Subject: [PATCH v3 09/24] bsd-user: Add target_to_host_semid_ds for semctl(2) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260218-bsd-user-claude-v3-9-0137b37b221e@bsdimp.com> References: <20260218-bsd-user-claude-v3-0-0137b37b221e@bsdimp.com> In-Reply-To: <20260218-bsd-user-claude-v3-0-0137b37b221e@bsdimp.com> To: qemu-devel@nongnu.org Cc: =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Kyle Evans , =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Paolo Bonzini , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Riku Voipio , Warner Losh , Stacey Son , Mikael Urankar , Richard Henderson X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1454; i=imp@bsdimp.com; h=from:subject:message-id; bh=fgH3524EO/JRuA2EMdN9nWxqm50+gVm4UNlg5mR95Uk=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBplp4rmJiZsBg8rmuiKPUCyTUBTapM+KvgxiUDN 9OYmq2oVbGJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZaeKwAKCRBsHNEofbAR AKlZD/9sT+mcR3O9dgSmNmNfAKPFuF6T5NbFtTQfUwGPywJr310y86yX3nfJeSa8Rg6iFEc87zu /nFX8G2DfQaPP6o7l1rjFVZZ8MvKksWptzlw8H7uEeX8WrnQ15RcDHddbuWJ8fZQFxhUggTmKrn LxQ6wXU5X2ptvlyPas2u9XaoAUbn0QWNxtRfLFkhmzH/L3/oCvqIEj6wQMJj2gta0AV+Wi36Aiu 4gLudyU88VH6Bx6+5yUtertZx6azgnsuLbz3/Ye0nw6wMvRm7vfzLHHur0Sy6ym71PTCAx5JWfX 7yftCSyA1s4wolbgz0/r1Fsxp3lKcIb7gv29d8FnK9+xnZvsyXWqNk+L4XtRnhWqLE4HGbe/fy0 lqWYkRM6VY1dEjvGOIgzDUBLLVCmL9KyN3LKVRBmTjzUWI//tFR1Dh1hmQLSn7U/lW2zxzafZGS j5RNZmlIwRFYocJ7sYfn9XgaaLTapoJocCLKSMruZeBe33Y2UQ27Nyz9nJ/5IGjATLVMyMDfraT eP2sgXwrtqrk0xhBaWqHHCiURTP/098bZX/b8r9JsQkzWsagVfDVAWN8cetS6OmewjXG4r5Wl/i tNmYoqZgGdRxDVfO9E1Cn4N6oPg9gD05nuImBrr9M4dkqVmJ9aW2D5teWYICbadWKFmQTAJEuwm KiloukQYAkNQBHg== X-Developer-Key: i=imp@bsdimp.com; a=openpgp; fpr=2035F894B00AA3CF7CCDE1B76C1CD1287DB01100 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=2607:f8b0:4864:20::c2d; envelope-from=imp@bsdimp.com; helo=mail-oo1-xc2d.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @bsdimp-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1771478677960158500 From: Stacey Son Add target_to_host_semid_ds() to convert target struct semid_ds to host format for semctl(2) IPC_SET operations. Signed-off-by: Stacey Son Signed-off-by: Mikael Urankar Reviewed-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/bsd-misc.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c index 65fd7b72e5..941f30d547 100644 --- a/bsd-user/bsd-misc.c +++ b/bsd-user/bsd-misc.c @@ -98,3 +98,21 @@ abi_long host_to_target_semarray(int semid, abi_ulong ta= rget_addr, unlock_user(array, target_addr, 1); return 0; } + +abi_long target_to_host_semid_ds(struct semid_ds *host_sd, + abi_ulong target_addr) +{ + struct target_semid_ds *target_sd; + + if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) { + return -TARGET_EFAULT; + } + target_to_host_ipc_perm__locked(&host_sd->sem_perm, &target_sd->sem_pe= rm); + /* sem_base is not used by kernel for IPC_STAT/IPC_SET */ + /* host_sd->sem_base =3D g2h_untagged(target_sd->sem_base); */ + __get_user(host_sd->sem_nsems, &target_sd->sem_nsems); + __get_user(host_sd->sem_otime, &target_sd->sem_otime); + __get_user(host_sd->sem_ctime, &target_sd->sem_ctime); + unlock_user_struct(target_sd, target_addr, 0); + return 0; +} --=20 2.52.0