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Tue, 24 Feb 2026 06:40:49 -0800 (PST) From: Warner Losh Date: Tue, 24 Feb 2026 07:40:30 -0700 Subject: [PATCH v4 06/24] bsd-user: Add host_to_target_uuid for uuidgen(2) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260224-bsd-user-claude-v4-6-8ee5ae17056f@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 , Richard Henderson X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=openpgp-sha256; l=1615; i=imp@bsdimp.com; h=from:subject:message-id; bh=xKJk3b3JTdaNoZfGVMupFKiv5n9kwceqv8tWNt1MXEw=; b=owEBbQKS/ZANAwAKAWwc0Sh9sBEAAcsmYgBpnbhnFiqURtrReA1IZOgd2t57qYaYiRL9vSjyN gZQncewXKqJAjMEAAEKAB0WIQQgNfiUsAqjz3zN4bdsHNEofbARAAUCaZ24ZwAKCRBsHNEofbAR AFqbEACjU3SlaX/IjlkGX3+PPv67rXBQGQuwwGE1WkssxrAufPKJx+ggokYFKGPKB4HOYUBwWue KlGQQcEXlH0PM+me4X9Hbpght44zjirXq4hAuvUj1yrt8OZ56x5MRkqlSnclkS3cO0hxEiZAJLP ae0+6at93owYzvFsn0L58GYS5K6bct2OX/JH+cIQkFfQCvy6GNJkOynnHlCGt+GnascptlVbmhF HF89rY3xK1hKojzsjZp34ai5VCBkPlCAnehNTpN8j8uc7EG63cqvLbpZYzHtaV064cS8W4QiauI pQ/qSF3DldvBEPgNaytVeoshek4tjCrGl5TZ8wkRTpmUwzES0jmCtARzyG9uX/Njk6znd2GVw58 tmDn7LRyx/vAxIrypDVoKcpP0mQN/ZPF75ibwnwPbS/9tfwguWUGM8wxnwQHZr8SsjH5yEozUPX kDPH7MwY1J2BXlrq5ovR9HXNYw9AL0JkKv2LKC2CMM5tuRZb15xIrvnRo2TsbOaUu4b09P9XXEP MMaWPhwx4kxip1sKp2+4vgHv1mMWeWATr7L5qnC9TVO9F+ZbuBZ6s/pYYku9kZfn8FghyMsbhKf VUad0ePqRoHe0j4MOYkYSj3Aeg70rDf0tj8C5KhcG9/5xtW/BqeVMORPaTLavPDR5H1kV0SdOUd ZdO0MVZ4X+CUZkQ== 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::32e; envelope-from=imp@bsdimp.com; helo=mail-ot1-x32e.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: 1771944176123158500 From: Stacey Son Add host_to_target_uuid() to convert host struct uuid to target ABI for the uuidgen(2) syscall. Signed-off-by: Stacey Son Reviewed-by: Richard Henderson Signed-off-by: Warner Losh --- bsd-user/bsd-misc.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/bsd-user/bsd-misc.c b/bsd-user/bsd-misc.c new file mode 100644 index 0000000000..68b67f37ba --- /dev/null +++ b/bsd-user/bsd-misc.c @@ -0,0 +1,35 @@ +/* + * BSD misc system call conversions routines + * + * Copyright (c) 2013 Stacey D. Son + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include "qemu/osdep.h" + +#include + +#include "qemu.h" +#include "qemu-bsd.h" + +/* + * BSD uuidgen(2) struct uuid conversion + */ +abi_long host_to_target_uuid(abi_ulong target_addr, struct uuid *host_uuid) +{ + struct target_uuid *target_uuid; + + if (!lock_user_struct(VERIFY_WRITE, target_uuid, target_addr, 0)) { + return -TARGET_EFAULT; + } + __put_user(host_uuid->time_low, &target_uuid->time_low); + __put_user(host_uuid->time_mid, &target_uuid->time_mid); + __put_user(host_uuid->time_hi_and_version, + &target_uuid->time_hi_and_version); + host_uuid->clock_seq_hi_and_reserved =3D + target_uuid->clock_seq_hi_and_reserved; + host_uuid->clock_seq_low =3D target_uuid->clock_seq_low; + memcpy(host_uuid->node, target_uuid->node, TARGET_UUID_NODE_LEN); + unlock_user_struct(target_uuid, target_addr, 1); + return 0; +} --=20 2.52.0