From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51404) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aADZ6-0002Ga-LC for qemu-devel@nongnu.org; Sat, 19 Dec 2015 04:12:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aADZ3-0007uK-G3 for qemu-devel@nongnu.org; Sat, 19 Dec 2015 04:12:36 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:35658) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aADZ3-0007u0-9b for qemu-devel@nongnu.org; Sat, 19 Dec 2015 04:12:33 -0500 Date: Sat, 19 Dec 2015 10:12:28 +0100 From: Pavel Machek Message-ID: <20151219091228.GA6024@amd> References: <1449242946-12062-1-git-send-email-somlo@cmu.edu> <20151217160923.GI19448@HEDWIG.INI.CMU.EDU> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151217160923.GI19448@HEDWIG.INI.CMU.EDU> Subject: Re: [Qemu-devel] [PATCH v6 0/4] SysFS driver for QEMU fw_cfg device List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Gabriel L. Somlo" Cc: mark.rutland@arm.com, peter.maydell@linaro.org, mst@redhat.com, matt@codeblueprint.co.uk, stefanha@gmail.com, qemu-devel@nongnu.org, eric@anholt.net, kraxel@redhat.com, linux-api@vger.kernel.org, agross@codeaurora.org, pawel.moll@arm.com, zajec5@gmail.com, rmk+kernel@arm.linux.org.uk, lersek@redhat.com, devicetree@vger.kernel.org, arnd@arndb.de, ijc+devicetree@hellion.org.uk, jordan.l.justen@intel.com, galak@codeaurora.org, leif.lindholm@linaro.org, robh+dt@kernel.org, ard.biesheuvel@linaro.org, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, luto@amacapital.net, hanjun.guo@linaro.org, sudeep.holla@arm.com, pbonzini@redhat.com, revol@free.fr Hi! On Thu 2015-12-17 11:09:23, Gabriel L. Somlo wrote: > ping ? > > Also, for the corresponding patch set on the QEMU end of things, > ping on http://thread.gmane.org/gmane.comp.emulators.qemu/376321 I guess missing information is why such access is a good idea. Debugging? Pavel > On Fri, Dec 04, 2015 at 10:29:02AM -0500, Gabriel L. Somlo wrote: > > Allow access to QEMU firmware blobs, passed into the guest VM via > > the fw_cfg device, through SysFS entries. Blob meta-data (e.g. name, > > size, and fw_cfg key), as well as the raw binary blob data may be > > accessed. > > > > The SysFS access location is /sys/firmware/qemu_fw_cfg/... and was > > selected based on overall similarity to the type of information > > exposed under /sys/firmware/dmi/entries/... -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html