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Wed, 18 Feb 2026 21:22:48 -0800 (PST) From: Warner Losh Date: Wed, 18 Feb 2026 22:22:33 -0700 Subject: [PATCH v3 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: <20260218-bsd-user-claude-v3-10-0137b37b221e@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 , 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=m4nroGBdmsjJ8MqRlkpI324ArqPLJWX8Os4psbfwQzg=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBplp4rLCwArfQEQLf8pI7X+gc2oPYUvFUVx+owY vreVewK/r+JAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZaeKwAKCRBsHNEofbAR ADwOD/0U6aWcwqh7vIGi0e1vr0koAwKaWv0BZ809c38j8zcSC0XjI7HXOqRK62sjNXfOBfoQz0p NhwcYEZyGp94qewY+O16if+YKas2lpkVZCjZ0dqUheTgepwNrdn+wdjhgqwgkLSohmamQUY7RSx 5E+vMoP8Vo3x/8As/zFm0wD3igBfsEgSOlS9jw0/4RQrZ77greexcb421rReDolHw7K08652sOO qn2r0tIqiRnxOM6LjE1p+rLsEg7uuP0+QM+nhf5sckhC4mFjAB8DVHnUhsJ6M6EznOh1ngDOfNk 9rTh8xxcVdg71LTf2CkbUsDXu1+CYFPXOcFJiqwEh3kyk0XSghKFZjattobXLLp1j7WpePB4Na+ QgFzVFE9sv6+5XhP6Y/laUG33/IC4vGdtLesn9KxdfOP/Y3ux1vvl0CO0cRfRw7gpyHcgdDQHOz omePAB4D0AtQVlbyJNxVEZSgaPRDSB7AJqmdT5r+4FNV57PqIDijrk2y1yJqJmpWZwcJuLUUE7E TpNQnd20BF8zSCjqDmB4+zAAkuxZohEoPzoCb0aNih14EQxrtpAUxoIWVJ241NR7ep8sFEqZhy7 m/CUYffXAxdIe5axFqwjs73EAk79cIwbFR6l4eQSFzndO9TULewFf4kuTDhHdyaM50fASng43+q KnV9eQfMKwpobUQ== 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::c32; envelope-from=imp@bsdimp.com; helo=mail-oo1-xc32.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: 1771478663745158500 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 941f30d547..5b02006313 100644 --- a/bsd-user/bsd-misc.c +++ b/bsd-user/bsd-misc.c @@ -116,3 +116,23 @@ 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