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Thu, 05 Feb 2026 09:26:49 -0800 (PST) From: Warner Losh Date: Thu, 05 Feb 2026 10:26:42 -0700 Subject: [PATCH 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: <20260205-bsd-user-claude-v1-9-8d8ff0035372@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 , Mikael Urankar X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1551; i=imp@bsdimp.com; h=from:subject:message-id; bh=l3aaSGl75xDQ60m8Tb3gHPxOs7J8k8a3sxeBgES7+7U=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBphNLaLCmlKLQ+Amj072Bg+j8FpwbBVcv2UjnBC o7dI40XLNyJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaYTS2gAKCRBsHNEofbAR AN4mEACEbMRc1J4WLQiTRt5HZoNmzjcKAeCqmyLshv8Y0vtcDNmWHaXuUHaAkgEFYiIEtFbb/ql 2P7wT/kEt+ADjO31m38snCDlo7Hiv+rZzpqeOlL7sBy3rMPrpbFHG82ZOero/Cj8csP+8YUS2dY mNF1DhzVqiauE5PfAfPPjugr6HPx0vXiPNTFKgYUM6jk5+0pmES1cMYqe223kWvYrSgqJTrIFVu CjkwFP9nPtdERCfTTkY0fy3eBHbCnJOLoykKb2uYVKjWra7svnELcIcs3auRoCISs2+IW6ZKRJq ETYDwDQCygzLqLAXKydpH89oComo4DXjB83VKsAAvrGVzUyyXsDMRqjm+8bx/xOKJ2Rzaa960WZ 3itt/LghgfaZU84y/XN7HTzK0EG7YhzOgwP6VC19rEXi07zD0gY6+/iPMkwWsFCeTPFZHCB7oqH C47JqE4rrKCidCSZ59Cjjr2Sf+q9Eq97GsErphLAI86cMop9v6nn+v5BmGeKeS6O0fw8uP+1NDk c1NWYSaooH+TlTef2Qtcg9iBeFsxrP5lDYYMKDdEYaAannVlT1AFzvxTq/yjGaxxio4w7IUvV0/ PigoUFnR433jYVDaautyUnqd4bfWmAiezL3sep4Xg5oiw9WeHB+c9XFm4dLsTepT8xKOUnH7Vw/ sBkEnD4kIjkn4Iw== 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::2e; envelope-from=imp@bsdimp.com; helo=mail-oa1-x2e.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: 1770312548794158500 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 Signed-off-by: Warner Losh --- bsd-user/bsd-misc.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c index 7bdf65450a..581eb50355 100644 --- a/bsd-user/bsd-misc.c +++ b/bsd-user/bsd-misc.c @@ -111,3 +111,26 @@ abi_long host_to_target_semarray(int semid, abi_ulong = target_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_= perm); + /* sem_base is not used by kernel for IPC_STAT/IPC_SET */ + /* host_sd->sem_base =3D g2h_untagged(target_sd->sem_base); */ + host_sd->sem_nsems =3D tswap16(target_sd->sem_nsems); +#if defined(TARGET_I386) + host_sd->sem_otime =3D tswap32(target_sd->sem_otime); + host_sd->sem_ctime =3D tswap32(target_sd->sem_ctime); +#else + host_sd->sem_otime =3D tswap64(target_sd->sem_otime); + host_sd->sem_ctime =3D tswap64(target_sd->sem_ctime); +#endif + unlock_user_struct(target_sd, target_addr, 0); + return 0; +} --=20 2.52.0