From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tamas K Lengyel Subject: [PATCH RFC v2 00/12] Mem_event and mem_access for ARM Date: Wed, 27 Aug 2014 16:06:28 +0200 Message-ID: <1409148400-14810-1-git-send-email-tklengyel@sec.in.tum.de> 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: xen-devel@lists.xen.org Cc: ian.campbell@citrix.com, tim@xen.org, ian.jackson@eu.citrix.com, stefano.stabellini@citrix.com, andres@lagarcavilla.org, jbeulich@suse.com, dgdegra@tycho.nsa.gov, Tamas K Lengyel List-Id: xen-devel@lists.xenproject.org The ARM virtualization extension provides 2-stage paging, a similar mechanisms to Intel's EPT, which can be used to trace the memory accesses performed by the guest systems. This series moves the mem_access and mem_event codebase into Xen common, performs some code cleanup and architecture specific division of components, then sets up the necessary infrastructure in the ARM code to deliver the event on R/W/X traps. Lastly, we turn on the compilation of the xen-access test tool. This version of the series has been fully tested and is functional on an Arndale board. Known missing parts: - Page-granularity adjustments (PAGE_ORDER_*) to shatter large LPAE pages if necessary. - Listener required feautre to crash the domain if no listener found - n2rwx, rx2rw This PATCH RFC version is also available at: https://github.com/tklengyel/xen/tree/arm_memaccess_rfc2 Tamas K Lengyel (12): xen: Relocate mem_access and mem_event into common. xen/mem_event: Clean out superflous white-spaces xen/mem_event: Relax error condition on debug builds xen/mem_event: Abstract architecture specific sanity checks xen/mem_access: Abstract architecture specific sanity check tools/libxc: Allocate magic page for mem access on ARM xen/arm: p2m type definitions and changes xen/arm: Add mem_event domctl and mem_access memop. xen/arm: Data abort exception (R/W) mem_events. xen/arm: Instruction prefetch abort (X) mem_event handling xen/arm: Enable the compilation of mem_access and mem_event on ARM. tools/tests: Enable xen-access on ARM MAINTAINERS | 6 + tools/libxc/xc_dom_arm.c | 6 +- tools/tests/xen-access/Makefile | 4 +- tools/tests/xen-access/xen-access.c | 55 ++- xen/arch/arm/domctl.c | 34 +- xen/arch/arm/mm.c | 20 +- xen/arch/arm/p2m.c | 444 +++++++++++++++++---- xen/arch/arm/traps.c | 73 +++- xen/arch/x86/domctl.c | 2 +- xen/arch/x86/hvm/hvm.c | 61 +-- xen/arch/x86/mm/Makefile | 2 - xen/arch/x86/mm/hap/nested_ept.c | 2 +- xen/arch/x86/mm/hap/nested_hap.c | 2 +- xen/arch/x86/mm/mem_access.c | 133 ------- xen/arch/x86/mm/mem_event.c | 705 ---------------------------------- xen/arch/x86/mm/mem_paging.c | 2 +- xen/arch/x86/mm/mem_sharing.c | 2 +- xen/arch/x86/mm/p2m-pod.c | 2 +- xen/arch/x86/mm/p2m-pt.c | 2 +- xen/arch/x86/mm/p2m.c | 2 +- xen/arch/x86/x86_64/compat/mm.c | 4 +- xen/arch/x86/x86_64/mm.c | 4 +- xen/common/Makefile | 2 + xen/common/domain.c | 1 + xen/common/mem_access.c | 150 ++++++++ xen/common/mem_event.c | 744 ++++++++++++++++++++++++++++++++++++ xen/common/memory.c | 62 +++ xen/include/asm-arm/config.h | 3 + xen/include/asm-arm/mm.h | 1 - xen/include/asm-arm/p2m.h | 107 ++++-- xen/include/asm-arm/processor.h | 70 +++- xen/include/asm-x86/config.h | 3 + xen/include/asm-x86/hvm/hvm.h | 6 - xen/include/asm-x86/mem_access.h | 39 -- xen/include/asm-x86/mem_event.h | 82 ---- xen/include/asm-x86/mm.h | 2 - xen/include/xen/mem_access.h | 39 ++ xen/include/xen/mem_event.h | 93 +++++ xen/include/xen/mm.h | 6 + xen/include/xen/sched.h | 1 - xen/include/xsm/dummy.h | 24 +- xen/include/xsm/xsm.h | 24 +- xen/xsm/dummy.c | 4 +- 43 files changed, 1843 insertions(+), 1187 deletions(-) delete mode 100644 xen/arch/x86/mm/mem_access.c delete mode 100644 xen/arch/x86/mm/mem_event.c create mode 100644 xen/common/mem_access.c create mode 100644 xen/common/mem_event.c delete mode 100644 xen/include/asm-x86/mem_access.h delete mode 100644 xen/include/asm-x86/mem_event.h create mode 100644 xen/include/xen/mem_access.h create mode 100644 xen/include/xen/mem_event.h -- 2.1.0.rc1