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Thu, 05 Feb 2026 09:26:50 -0800 (PST) From: Warner Losh Date: Thu, 05 Feb 2026 10:26:43 -0700 Subject: [PATCH 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: <20260205-bsd-user-claude-v1-10-8d8ff0035372@bsdimp.com> References: <20260205-bsd-user-claude-v1-0-8d8ff0035372@bsdimp.com> In-Reply-To: <20260205-bsd-user-claude-v1-0-8d8ff0035372@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 X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1372; i=imp@bsdimp.com; h=from:subject:message-id; bh=WnUMIMP73sKl8rP3ra69MFt9fRKFmebiQEzTzexuxLM=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBphNLaIh/HKahvfMrGjumXPK4Lsdc/a9vqxSBBi aHCHS+SoRGJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaYTS2gAKCRBsHNEofbAR AAUdD/9NhQ3OSmbSQQ56TsU/gwz6A1ApM6f5QsYaoCx3aYNR1W0D3Gaoz3SWaqKOR+WcEVtbRN8 WGY7N6n/9/g3U3IkoN/gMkkdXS2ZEQ9Ntl/LPPRgR0SYfkP3NQJfgHfYMRgOmTnCsLObhMhGmop NWiiTAhKEHkgf6jjsIu4nm6vCir+PacmWOoN9OFf5Z1Cka6bpvISRsU93fICnBkKqDzzfh7H354 GftcSfjT73YTPnxwCZ/tlfEpxgwNm6khSr0+opiT+GJkJoqxLZUZawKTdbyFFKWBJHo7u0uFHwT g6HJ1GwNptRJMpnXjf29RMnVbSnW3pRFxNtIUesExgGwDihTOh9yNDJuuFTM9EXRZg/4bh7+IGK 3OXvlj04AhBA6BU6bRHz6alOmbRBM/m/r2VmK3ampIcJbEA6jW4kCvrjI+mu2+Sn/eKycGqb0dr VtJCpg1qObGh6Y9te35VNeKUbVY5fo/+GM+C8JrSBMfXMA3vJHIbUFIaFdTjXtZm5o0FVSxpB4V hAvEescI+o1/ir2nSlmYP7q6AfvfFfN9HtW+jt/t+H0ByW7/KdAo8mLbGpZKy/R6eSIY4kX9MKs H6aFFI2HpoJK/djJFvx5KQ3vDsu7oO0BkXmHAh4XQlZmu7T3BoMfWQAi4J0neJnnCpPsCj/47t0 CxKW8MDSvn2EG9Q== 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=2001:4860:4864:20::2c; envelope-from=imp@bsdimp.com; helo=mail-oa1-x2c.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: 1770312499638154100 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 Signed-off-by: Warner Losh Reviewed-by: Richard Henderson --- 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 581eb50355..f35f682aa4 100644 --- a/bsd-user/bsd-misc.c +++ b/bsd-user/bsd-misc.c @@ -134,3 +134,23 @@ 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); */ + target_sd->sem_nsems =3D tswap16(host_sd->sem_nsems); + target_sd->sem_otime =3D tswapal(host_sd->sem_otime); + target_sd->sem_ctime =3D tswapal(host_sd->sem_ctime); + unlock_user_struct(target_sd, target_addr, 1); + + return 0; +} --=20 2.52.0