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charset="utf-8" For support of the 9pfs frontend in Xenstore-stubdom xenstore_buf needs to be externally visible. Signed-off-by: Juergen Gross Reviewed-by: Jason Andryuk --- include/xenbus.h | 2 ++ xenbus.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/include/xenbus.h b/include/xenbus.h index c0fc0ac5..542ee456 100644 --- a/include/xenbus.h +++ b/include/xenbus.h @@ -8,12 +8,14 @@ typedef unsigned long xenbus_transaction_t; =20 #ifdef CONFIG_XENBUS extern uint32_t xenbus_evtchn; +extern struct xenstore_domain_interface *xenstore_buf; =20 /* Initialize the XenBus system. */ void init_xenbus(void); void get_xenbus(void *p); #else #define xenbus_evtchn ~0 +#define xenstore_buf NULL =20 static inline void init_xenbus(void) { diff --git a/xenbus.c b/xenbus.c index 923e8181..8bfd5bd4 100644 --- a/xenbus.c +++ b/xenbus.c @@ -44,7 +44,7 @@ #define DEBUG(_f, _a...) ((void)0) #endif =20 -static struct xenstore_domain_interface *xenstore_buf; +struct xenstore_domain_interface *xenstore_buf; static DECLARE_WAIT_QUEUE_HEAD(xb_waitq); DECLARE_WAIT_QUEUE_HEAD(xenbus_watch_queue); static __DECLARE_SEMAPHORE_GENERIC(xb_write_sem, 1); --=20 2.35.3 From nobody Sun Feb 8 23:06:15 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org; dmarc=pass(p=quarantine dis=none) header.from=suse.com ARC-Seal: i=1; a=rsa-sha256; t=1698829274; cv=none; d=zohomail.com; s=zohoarc; b=KNkQwLpRylGb3yGYqQqnjZIZshIlAVXVN0Gi5fVdM7tIaEobjIz+u4vXG+ianXBtNnCakEk05d5sVG0ddX++vAAABxWR9thmjfJlpaVQTnMSoSJTOtJRgqezBn6jNdnz02S/WQzQMAS239T12SLFzy6KSbMh4KAelm6liiRAha4= ARC-Message-Signature: i=1; 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h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BBCYYLq8RLRTC07yvHLcGeOw7lLnh2hUZttfKIwKhhk=; b=kmvqIvyZZbyed7wfK0z8dsqPN9cEhkgdaSxvM8FaTMZpp3gpQsfOkvn8lUqV+c3r7lpafG GW8iPSd7PGh454KuPgwiYRSYzhAkzNGbZqil6jR0hecUowX45BSF9offJrvY9fKFLsKfZ/ n1sW3HxwvzuFnJykVodU1BWGf1CMTXY= From: Juergen Gross To: minios-devel@lists.xenproject.org, xen-devel@lists.xenproject.org Cc: samuel.thibault@ens-lyon.org, wl@xen.org, Juergen Gross Subject: [PATCH 2/3] Mini-OS: don't crash if no shutdown node is available Date: Wed, 1 Nov 2023 10:00:23 +0100 Message-Id: <20231101090024.28934-3-jgross@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20231101090024.28934-1-jgross@suse.com> References: <20231101090024.28934-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1698829275769100007 Content-Type: text/plain; charset="utf-8" It might be perfectly fine not to have a control/shutdown Xenstore node. If this is the case, don't crash, but just terminate the shutdown thread after issuing a message that shutdown isn't available. In fini_shutdown() clearing the watch can result in an error now, in case the early exit above was taken. Just ignore this error now. Signed-off-by: Juergen Gross Reviewed-by: Jason Andryuk --- shutdown.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) diff --git a/shutdown.c b/shutdown.c index bb2c6f11..ded6b64d 100644 --- a/shutdown.c +++ b/shutdown.c @@ -75,7 +75,9 @@ static void shutdown_thread(void *p) xenbus_wait_for_watch(&events); if ((err =3D xenbus_read(XBT_NIL, path, &shutdown))) { free(err); - do_exit(); + free(xenbus_unwatch_path_token(XBT_NIL, path, token)); + printk("Shutdown Xenstore node not available.\n"); + return; } =20 if (end_shutdown_thread) @@ -117,15 +119,9 @@ void init_shutdown(void) =20 void fini_shutdown(void) { - char *err; - end_shutdown_thread =3D 1; xenbus_release_wait_for_watch(&events); - err =3D xenbus_unwatch_path_token(XBT_NIL, path, token); - if (err) { - free(err); - do_exit(); - } + free(xenbus_unwatch_path_token(XBT_NIL, path, token)); } #endif =20 --=20 2.35.3 From nobody Sun Feb 8 23:06:15 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; 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Wed, 01 Nov 2023 09:00:43 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 23d72a20-7895-11ee-98d6-6d05b1d4d9a1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1698829244; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Or0tPQphNoLGGIqgePeOLJ1T+klAnj6lGdQ0f802gDQ=; b=NiwXEXSwOFrCzwRHIGYZEMFP/XfdMwMiudIEejCjpT4hEWFD6FJk1eX4RnZo54pZ9I/ABh 1twigO1mFwK1zNp5ItPXkelsJmEbBDQ5GB3BGoLsufaYnCJmrpphchSQL/YTrynQczl1pf Ov8pdFWbW2zNJ3jw5irqJSA4nFV1uOA= From: Juergen Gross To: minios-devel@lists.xenproject.org, xen-devel@lists.xenproject.org Cc: samuel.thibault@ens-lyon.org, wl@xen.org, Juergen Gross Subject: [PATCH 3/3] Mini-OS: fix 9pfs stat receive format Date: Wed, 1 Nov 2023 10:00:24 +0100 Message-Id: <20231101090024.28934-4-jgross@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20231101090024.28934-1-jgross@suse.com> References: <20231101090024.28934-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1698829273765100004 Content-Type: text/plain; charset="utf-8" The format string of the received data for the 9pfs stat command is missing the initial 2 byte total length specifier. Add it. Fixes: 2d1dfccd3aa3 ("Mini-OS: add read and write support to 9pfsfront") Signed-off-by: Juergen Gross Reviewed-by: Jason Andryuk --- 9pfront.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/9pfront.c b/9pfront.c index 5da8a365..43c7409f 100644 --- a/9pfront.c +++ b/9pfront.c @@ -711,6 +711,7 @@ static int p9_create(struct dev_9pfs *dev, uint32_t fid= , char *path, static int p9_stat(struct dev_9pfs *dev, uint32_t fid, struct p9_stat *sta= t) { struct req *req =3D get_free_req(dev); + uint16_t total; int ret; =20 if ( !req ) @@ -719,10 +720,10 @@ static int p9_stat(struct dev_9pfs *dev, uint32_t fid= , struct p9_stat *stat) memset(stat, 0, sizeof(*stat)); req->cmd =3D P9_CMD_STAT; send_9p(dev, req, "U", fid); - rcv_9p(dev, req, "uuUQUUULSSSSSUUU", &stat->size, &stat->type, &stat->= dev, - stat->qid, &stat->mode, &stat->atime, &stat->mtime, &stat->leng= th, - &stat->name, &stat->uid, &stat->gid, &stat->muid, &stat->extens= ion, - &stat->n_uid, &stat->n_gid, &stat->n_muid); + rcv_9p(dev, req, "uuuUQUUULSSSSSUUU", &total, &stat->size, &stat->type, + &stat->dev, stat->qid, &stat->mode, &stat->atime, &stat->mtime, + &stat->length, &stat->name, &stat->uid, &stat->gid, &stat->muid, + &stat->extension, &stat->n_uid, &stat->n_gid, &stat->n_muid); =20 ret =3D req->result; =20 --=20 2.35.3