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Sun, 08 Feb 2026 11:26:37 -0800 (PST) From: Warner Losh Date: Sun, 08 Feb 2026 12:26:19 -0700 Subject: [PATCH v2 10/24] bsd-user: Add host_to_target_semid_ds for semctl(2) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260208-bsd-user-claude-v2-10-58e5fcfdb84f@bsdimp.com> References: <20260208-bsd-user-claude-v2-0-58e5fcfdb84f@bsdimp.com> In-Reply-To: <20260208-bsd-user-claude-v2-0-58e5fcfdb84f@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 , Richard Henderson X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1444; i=imp@bsdimp.com; h=from:subject:message-id; bh=MUQYNL+nOFXyZisTQGEN5eorGSYGJF8F6LnVYlzUDQc=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBpiONgKdRb9ehG9ndSjDphCOdEY/BwlA5pHVsS3 GiNDiKm8pqJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaYjjYAAKCRBsHNEofbAR ALcqD/42JevE7WyV4RL+dmXXAXk2xK0kfsw+kragJ+HquEYEsG8HYhwGeQIVlZc3yS2AMeERJ1i DyS1utDenObD5MjqAopkxSGKGnpHrWvm6MgmTGKN2+dCbNdqmIJpcG/oCRb7iqwqs+JxL2VCwAx jH3Xcw8xLki2ja+GOD6xNvAwLo/6dZr8F3RvoB7ACiz/c1RL77YqBMrecZxLMNVYZ/jn0v4J7h9 O4uk8A3D8kpAKaJcYikrNr6zMFOIm3wkdF+eLCo+H7uoo0vHsiiMYIq2tkRvLLt9aX3cyXjO+zc /EghLc1iTBU2sln6q0Y5hIDzJ4pnVHcKJaMrMIcRSRGNlSkV6TolcF7vRCkNVjQBkv1AXRjb4cN 4HvCezCtxgOqn+TsoGZCcmkmyzcxaCTOJ4WYfdkgVDEwX3eL0d7EOm+ErK2TjxNGd9GvUeDKZHK FZlhsQUgBoEARftfTnapk1itHDx2p+gzWvC1gn/7aSQC4kS4erXsF2eVda3I4EA0BN5r4THbMlq bmpwCmDoCaBlnvD27+ULdgffa6t+l+i6M2y05IzQRbLyD2HGQIzjzfH/d403owPe1yOwpW9Ue9v bYVKQGomhwNyVhWwpf9InpfdTwNGHP4eoY31q/TGXbT8YoFIYy4e4Ao1zOOscsOe7aUNGiSc0Zu YZDuMtM/F1yx9YA== 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::c2b; envelope-from=imp@bsdimp.com; helo=mail-oo1-xc2b.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: 1770579091141154100 From: Stacey Son Add host_to_target_semid_ds() to convert host struct semid_ds to target format for semctl(2) IPC_STAT operations. Signed-off-by: Stacey Son Reviewed-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/bsd-misc.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c index 2a7c0520ca..9c47073c5a 100644 --- a/bsd-user/bsd-misc.c +++ b/bsd-user/bsd-misc.c @@ -130,3 +130,23 @@ abi_long target_to_host_semid_ds(struct semid_ds *host= _sd, unlock_user_struct(target_sd, target_addr, 0); return 0; } + +abi_long host_to_target_semid_ds(abi_ulong target_addr, + struct semid_ds *host_sd) +{ + struct target_semid_ds *target_sd; + + if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) { + return -TARGET_EFAULT; + } + host_to_target_ipc_perm__locked(&target_sd->sem_perm, + &host_sd->sem_perm); + /* sem_base is not used by kernel for IPC_STAT/IPC_SET */ + /* target_sd->sem_base =3D h2g((void *)host_sd->sem_base); */ + __put_user(target_sd->sem_nsems, &host_sd->sem_nsems); + __put_user(target_sd->sem_otime, &host_sd->sem_otime); + __put_user(target_sd->sem_ctime, &host_sd->sem_ctime); + unlock_user_struct(target_sd, target_addr, 1); + + return 0; +} --=20 2.52.0