From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751530AbeAWQk5 (ORCPT ); Tue, 23 Jan 2018 11:40:57 -0500 Received: from mx1.redhat.com ([209.132.183.28]:45240 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751224AbeAWQk4 (ORCPT ); Tue, 23 Jan 2018 11:40:56 -0500 From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= 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?= Subject: [PATCH v10 0/4] fw_cfg: add DMA operations & etc/vmcoreinfo support 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: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 device" (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 supported - removed a copy-pasta memset() on write operation error Marc-André 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(-) -- 2.16.0.rc1.1.gef27df75a1