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Fri, 10 Nov 2023 16:10:26 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id dKiIHPJVTmWHCQAAMHmgww (envelope-from ); Fri, 10 Nov 2023 16:10:26 +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: a92a9192-7fe3-11ee-9b0e-b553b5be7939 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1699632626; 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=mAbYvWWcrF68SCYMWW0W6XWNuB7mZzftdWlLKLvl9pU=; b=DVUj5/b6cpWnCnGmCTFbetK58RT9pBIJUTQXyRAHou6IK0XzoQ5554iTmQf/oWfGJadQMi u4dIppB5EArsihlHbayzARU95IQ/gLlOBjrYLdDooFnQYClowIVx7XY8xZ4GG8BVRT3VkT ymiIhwAQA7WUy7xxq6NEC4ejYJ6saeo= From: Juergen Gross To: xen-devel@lists.xenproject.org Cc: Juergen Gross , Wei Liu , Julien Grall , Anthony PERARD Subject: [PATCH v2 25/29] tools/xenstored: map stubdom interface Date: Fri, 10 Nov 2023 17:08:00 +0100 Message-Id: <20231110160804.29021-26-jgross@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20231110160804.29021-1-jgross@suse.com> References: <20231110160804.29021-1-jgross@suse.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1699632907312100002 Content-Type: text/plain; charset="utf-8" When running as stubdom, map the stubdom's Xenstore ring page in order to support using the 9pfs frontend. Signed-off-by: Juergen Gross --- tools/xenstored/core.c | 2 ++ tools/xenstored/domain.c | 27 ++++++++++++++++++++++++++- tools/xenstored/domain.h | 1 + 3 files changed, 29 insertions(+), 1 deletion(-) diff --git a/tools/xenstored/core.c b/tools/xenstored/core.c index b9ec50b34c..4a9d874f17 100644 --- a/tools/xenstored/core.c +++ b/tools/xenstored/core.c @@ -2991,6 +2991,8 @@ int main(int argc, char *argv[]) lu_read_state(); #endif =20 + stubdom_init(); + check_store(); =20 /* Get ready to listen to the tools. */ diff --git a/tools/xenstored/domain.c b/tools/xenstored/domain.c index fa17f68618..162b87b460 100644 --- a/tools/xenstored/domain.c +++ b/tools/xenstored/domain.c @@ -37,6 +37,10 @@ #include #include =20 +#ifdef __MINIOS__ +#include +#endif + static xc_interface **xc_handle; xengnttab_handle **xgt_handle; static evtchn_port_t virq_port; @@ -500,6 +504,11 @@ static void *map_interface(domid_t domid) if (domid =3D=3D xenbus_master_domid()) return xenbus_map(); =20 +#ifdef __MINIOS__ + if (domid =3D=3D stub_domid) + return xenstore_buf; +#endif + return xengnttab_map_grant_ref(*xgt_handle, domid, GNTTAB_RESERVED_XENSTORE, PROT_READ|PROT_WRITE); @@ -509,7 +518,7 @@ static void unmap_interface(domid_t domid, void *interf= ace) { if (domid =3D=3D xenbus_master_domid()) unmap_xenbus(interface); - else + else if (domid !=3D stub_domid) xengnttab_unmap(*xgt_handle, interface, 1); } =20 @@ -1214,6 +1223,22 @@ void dom0_init(void) xenevtchn_notify(xce_handle, dom0->port); } =20 +void stubdom_init(void) +{ +#ifdef __MINIOS__ + struct domain *stubdom; + + if (stub_domid < 0) + return; + + stubdom =3D introduce_domain(NULL, stub_domid, xenbus_evtchn, false); + if (!stubdom) + barf_perror("Failed to initialize stubdom"); + + xenevtchn_notify(xce_handle, stubdom->port); +#endif +} + static unsigned int domhash_fn(const void *k) { return *(const unsigned int *)k; diff --git a/tools/xenstored/domain.h b/tools/xenstored/domain.h index 6c00540311..49c60c56bf 100644 --- a/tools/xenstored/domain.h +++ b/tools/xenstored/domain.h @@ -85,6 +85,7 @@ int do_reset_watches(const void *ctx, struct connection *= conn, void domain_static_init(void); void domain_init(int evtfd); void dom0_init(void); +void stubdom_init(void); void domain_deinit(void); void ignore_connection(struct connection *conn, unsigned int err); =20 --=20 2.35.3