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 sets up the necessary infrastructure in the ARM code to deliver the event on R/W/X traps. Finally, we turn on the compilation of mem_access and mem_event on ARM and perform the necessary changes to the tools side.
This version of the series is based on master and each patch in the series has been compile tested on both ARM and x86. This PATCH series is also available at: https://github.com/tklengyel/xen/tree/arm_memaccess15 Julien Grall (1): xen/arm: Implement domain_get_maximum_gpfn Tamas K Lengyel (8): xen/arm: groundwork for mem_access support on ARM xen/arm: Allow hypervisor access to mem_access protected pages xen/arm: Data abort exception (R/W) mem_access events xen/arm: Instruction prefetch abort (X) mem_access event handling xen: Make gpfn related memops compatible with wider return values tools/libxc: Allocate magic page for mem access on ARM tools/tests: Enable xen-access on ARM xen/arm: Enable mem_access on ARM config/arm32.mk | 1 + config/arm64.mk | 1 + tools/libxc/include/xenguest.h | 2 +- tools/libxc/xc_core.h | 4 +- tools/libxc/xc_core_arm.c | 6 +- tools/libxc/xc_core_x86.c | 8 +- tools/libxc/xc_dom_arm.c | 6 +- tools/libxc/xc_domain.c | 14 +- tools/libxc/xc_domain_save.c | 3 +- tools/libxc/xg_private.h | 2 +- tools/tests/mce-test/tools/xen-mceinj.c | 28 +- tools/tests/xen-access/Makefile | 4 +- tools/tests/xen-access/xen-access.c | 38 +- xen/arch/arm/mm.c | 2 +- xen/arch/arm/p2m.c | 604 +++++++++++++++++++++++++++++--- xen/arch/arm/traps.c | 78 ++++- xen/common/memory.c | 16 +- xen/include/asm-arm/arm32/page.h | 7 +- xen/include/asm-arm/arm64/page.h | 7 +- xen/include/asm-arm/domain.h | 1 + xen/include/asm-arm/p2m.h | 32 +- xen/include/asm-arm/page.h | 4 +- xen/include/asm-arm/processor.h | 13 +- xen/include/asm-x86/p2m.h | 10 - xen/include/public/memory.h | 24 +- xen/include/xen/p2m-common.h | 14 + 26 files changed, 796 insertions(+), 133 deletions(-) -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
