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Tue, 24 Feb 2026 06:40:52 -0800 (PST) From: Warner Losh Date: Tue, 24 Feb 2026 07:40:33 -0700 Subject: [PATCH v4 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: <20260224-bsd-user-claude-v4-9-8ee5ae17056f@bsdimp.com> References: <20260224-bsd-user-claude-v4-0-8ee5ae17056f@bsdimp.com> In-Reply-To: <20260224-bsd-user-claude-v4-0-8ee5ae17056f@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/ZANAwAKAWwc0Sh9sBEAAcsmYgBpnbhn5Tmfzifs8dkaS6Q1ISKpYCIvV5XCIt2YF UcqGB5WydeJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZ24ZwAKCRBsHNEofbAR AKqDEACYt0pXlNGnEdNto3fELRNhmublADm9wGJm/Owk0xpubuvSS8n/a+D0Nfclait3l1hfzdc VN7ka89XoZWn5/Tw+cd2uLnvf3xsXbMgzWmGIpEWY4yam/HUrxmIHskRP+v6kIKQbbvEd9JWgvp D2yCrBSwsR2O/CnaBTNpDjYiCX3MK58vvcv+AnXzkbo4Z9EmklnivtiY6khwGa5m5wUQGm5hgkx PNSuWgbAVwK4gSWzzldH5j0xa9DrOv7/dpRnixi6l7M9lcqu2LWSKYhpZowwE5Sx70sjS4I0DY5 0fYo6rnoRPKpFxDds8FyxIIKZEuvIFPmgoNJeulqT9HoT7IQejvhwRg6Of9XQVa0U6JC8Tg3fkW HmQtKCSntAtJaBRszYo1PBTdjAZz5/Fh0p/+aAjHzw47z7tfbVK3cvwjo0Yl2BjZ8sEgPt6GPgQ dRhNiANtv8Hznr8YDSVcxdbjhISgQiSKNAZSH7D0Xi2cOnIDo8L49VF4gIH9Bqj9NXAEW+zBsUj CJXxLegsQpn2S7WKQRWsKpy66F67Hec1VwxZZ2Bk7JT/F/01JybBQ+qw3xIVjyXf2DJICg0xDOR TjH+2owHjMr1WBApO839Z8JVAq+wixOuEwC2sClBVDRKH/TDZhJ9KcGK+wY2zLzlbIsyERix/3C ri78Mxn+AIMosTA== 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::32f; envelope-from=imp@bsdimp.com; helo=mail-ot1-x32f.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: 1771944104850158500 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