From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tiejun Chen Subject: [RFC][PATCH 0/5] xen: reserve RMRR to avoid conflicting MMIO/RAM Date: Thu, 7 Aug 2014 19:02:46 +0800 Message-ID: <1407409371-31728-1-git-send-email-tiejun.chen@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: JBeulich@suse.com, ian.jackson@eu.citrix.com, stefano.stabellini@eu.citrix.com, ian.campbell@citrix.com, yang.z.zhang@intel.com, kevin.tian@intel.com Cc: xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org While we work for supporting RMRR mapping for Windows GFX driver in case shared table, http://osdir.com/ml/general/2014-07/msg55347.html http://osdir.com/ml/general/2014-07/msg55348.html we realize we should reserve RMRR range to avoid any potential MMIO/RAM overlap with our discussion so here these preliminary patches are intended to cover this. ---------------------------------------------------------------- Tiejun Chen (5): xen:x86: record RMRR mappings xen:x86: introduce a new hypercall to get RMRR mappings tools:libxc: remove mmio BAR out of RMRR mappings tools:firmware:hvmloader: reserve RMRR mappings in e820 xen:vtd: make USB RMRR mapping safe tools/firmware/hvmloader/e820.c | 14 ++++++++++++++ tools/firmware/hvmloader/e820.h | 6 ++++++ tools/firmware/hvmloader/util.c | 13 +++++++++++++ tools/firmware/hvmloader/util.h | 1 + tools/libxc/xc_domain.c | 25 +++++++++++++++++++++++++ tools/libxc/xc_hvm_build_x86.c | 26 ++++++++++++++++++++++++++ tools/libxc/xenctrl.h | 4 ++++ xen/arch/x86/e820.c | 2 ++ xen/arch/x86/mm.c | 35 +++++++++++++++++++++++++++++++++++ xen/arch/x86/x86_64/compat/mm.c | 8 ++++++++ xen/drivers/passthrough/vtd/dmar.c | 15 +++++++++++++++ xen/drivers/passthrough/vtd/iommu.c | 8 -------- xen/include/asm-x86/e820.h | 1 + xen/include/public/memory.h | 10 +++++++++- 14 files changed, 159 insertions(+), 9 deletions(-) Thanks Tiejun