From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52004) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ee1d9-00042a-8m for qemu-devel@nongnu.org; Tue, 23 Jan 2018 11:41:04 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ee1d4-0005u5-DY for qemu-devel@nongnu.org; Tue, 23 Jan 2018 11:41:03 -0500 Received: from mx1.redhat.com ([209.132.183.28]:50466) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ee1d4-0005tV-7i for qemu-devel@nongnu.org; Tue, 23 Jan 2018 11:40:58 -0500 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Tue, 23 Jan 2018 17:40:37 +0100 Message-Id: <20180123164041.30339-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v10 0/4] fw_cfg: add DMA operations & etc/vmcoreinfo support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: linux-kernel@vger.kernel.org Cc: bhe@redhat.com, slp@redhat.com, mst@redhat.com, somlo@cmu.edu, xiaolong.ye@intel.com, peterx@redhat.com, qemu-devel@nongnu.org, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Hi, This series adds DMA operations support to the qemu fw_cfg kernel module and populates "etc/vmcoreinfo" with vmcoreinfo location details (since qemu 2.11). v10: - merged Peter Xu fix "[PATCH] fw_cfg: don't use DMA mapping for fw_cfg d= evice" (fixing fw-cfg+viommu configuration) - switch back to kalloc'd struct vmci, to fix DMA garbage operations - do not attempt to write vmcoreinfo if the entry exists but DMA isn't su= pported - removed a copy-pasta memset() on write operation error Marc-Andr=C3=A9 Lureau (4): fw_cfg: add DMA register fw_cfg: do DMA read operation crash: export paddr_vmcoreinfo_note() fw_cfg: write vmcoreinfo details drivers/firmware/qemu_fw_cfg.c | 267 +++++++++++++++++++++++++++++++++++= +----- kernel/crash_core.c | 1 + 2 files changed, 236 insertions(+), 32 deletions(-) --=20 2.16.0.rc1.1.gef27df75a1