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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [RFC PATCH V3 00/12] xen: Clean-up of mem_event subsystem
This patch series aims to clean up the mem_event subsystem within Xen. The original use-case for this system was to allow external helper applications running in privileged domains to control various memory operations performed by Xen. Amongs these were paging, sharing and access control. The subsystem has since been extended to also deliver non-memory related events, namely various HVM debugging events (INT3, MTF, MOV-TO-CR, MOV-TO-MSR). The structures and naming of related functions however has not caught up to these new use-cases, thus leaving many ambiguities in the code. Furthermore, future use-cases envisioned for this subsystem include PV domains and ARM domains, thus there is a need to establish a common base to build on. In this series we convert the mem_event system to vm_event in which we clearly define the scope of information that is transmitted via the event delivery mechanism. Afterwards, we clean up the naming of the structures and related functions to more clearly be in line with their actual operations. Finally, the control of monitor events is moved to a new domctl, monitor_op. This RFC PATCH series is also available at: https://github.com/tklengyel/xen/tree/mem_event_cleanup3 Razvan Cojocaru (1): xen/mem_event: Cleanup of mem_event structures Tamas K Lengyel (11): xen/mem_event: Rename the mem_event ring from 'access' to 'monitor' xen/mem_paging: Convert mem_event_op to mem_paging_op xen/mem_access: Merge mem_event sanity check into mem_access check xen: Introduce vm_event xen: migrate mem_event to vm_event xen: Remove mem_event tools/tests: Clean-up tools/tests/xen-access x86/hvm: factor out and rename vm_event related functions into separate file xen: Introduce monitor_op domctl xen/vm_event: Decouple vm_event and mem_access. xen/vm_event: Check for VM_EVENT_FLAG_DUMMY only in Debug builds MAINTAINERS | 5 +- docs/misc/xsm-flask.txt | 2 +- tools/libxc/Makefile | 3 +- tools/libxc/include/xenctrl.h | 19 + tools/libxc/xc_domain_restore.c | 14 +- tools/libxc/xc_domain_save.c | 4 +- tools/libxc/xc_hvm_build_x86.c | 2 +- tools/libxc/xc_mem_access.c | 19 +- tools/libxc/xc_mem_event.c | 178 --------- tools/libxc/xc_mem_paging.c | 44 ++- tools/libxc/xc_memshr.c | 18 +- tools/libxc/xc_monitor.c | 118 ++++++ tools/libxc/xc_private.h | 15 +- tools/libxc/xc_vm_event.c | 159 ++++++++ tools/libxc/xg_save_restore.h | 2 +- tools/tests/xen-access/xen-access.c | 222 ++++------- tools/xenpaging/pagein.c | 2 +- tools/xenpaging/xenpaging.c | 150 ++++---- tools/xenpaging/xenpaging.h | 8 +- xen/arch/x86/Makefile | 1 + xen/arch/x86/domain.c | 2 +- xen/arch/x86/domctl.c | 4 +- xen/arch/x86/hvm/Makefile | 3 +- xen/arch/x86/hvm/emulate.c | 6 +- xen/arch/x86/hvm/event.c | 184 +++++++++ xen/arch/x86/hvm/hvm.c | 192 +--------- xen/arch/x86/hvm/vmx/vmcs.c | 8 +- xen/arch/x86/hvm/vmx/vmx.c | 9 +- xen/arch/x86/mm/hap/nested_ept.c | 4 +- xen/arch/x86/mm/hap/nested_hap.c | 4 +- xen/arch/x86/mm/mem_paging.c | 18 +- xen/arch/x86/mm/mem_sharing.c | 36 +- xen/arch/x86/mm/p2m-pod.c | 4 +- xen/arch/x86/mm/p2m-pt.c | 4 +- xen/arch/x86/mm/p2m.c | 225 +++++------ xen/arch/x86/monitor.c | 197 ++++++++++ xen/arch/x86/x86_64/compat/mm.c | 12 +- xen/arch/x86/x86_64/mm.c | 12 +- xen/common/Makefile | 3 +- xen/common/domain.c | 12 +- xen/common/domctl.c | 19 +- xen/common/mem_access.c | 32 +- xen/common/mem_event.c | 742 ------------------------------------ xen/common/monitor.c | 64 ++++ xen/common/vm_event.c | 726 +++++++++++++++++++++++++++++++++++ xen/drivers/passthrough/pci.c | 2 +- xen/include/asm-arm/monitor.h | 13 + xen/include/asm-arm/p2m.h | 6 +- xen/include/asm-x86/domain.h | 49 ++- xen/include/asm-x86/hvm/emulate.h | 2 +- xen/include/asm-x86/hvm/event.h | 40 ++ xen/include/asm-x86/hvm/hvm.h | 11 - xen/include/asm-x86/mem_paging.h | 2 +- xen/include/asm-x86/monitor.h | 9 + xen/include/asm-x86/p2m.h | 16 +- xen/include/public/domctl.h | 119 ++++-- xen/include/public/hvm/params.h | 17 +- xen/include/public/mem_event.h | 134 ------- xen/include/public/memory.h | 9 +- xen/include/public/vm_event.h | 193 ++++++++++ xen/include/xen/mem_access.h | 14 +- xen/include/xen/mem_event.h | 143 ------- xen/include/xen/monitor.h | 38 ++ xen/include/xen/p2m-common.h | 4 +- xen/include/xen/sched.h | 28 +- xen/include/xen/vm_event.h | 87 +++++ xen/include/xsm/dummy.h | 6 +- xen/include/xsm/xsm.h | 16 +- xen/xsm/dummy.c | 6 +- xen/xsm/flask/hooks.c | 36 +- xen/xsm/flask/policy/access_vectors | 1 + 71 files changed, 2512 insertions(+), 1996 deletions(-) delete mode 100644 tools/libxc/xc_mem_event.c create mode 100644 tools/libxc/xc_monitor.c create mode 100644 tools/libxc/xc_vm_event.c create mode 100644 xen/arch/x86/hvm/event.c create mode 100644 xen/arch/x86/monitor.c delete mode 100644 xen/common/mem_event.c create mode 100644 xen/common/monitor.c create mode 100644 xen/common/vm_event.c create mode 100644 xen/include/asm-arm/monitor.h create mode 100644 xen/include/asm-x86/hvm/event.h create mode 100644 xen/include/asm-x86/monitor.h delete mode 100644 xen/include/public/mem_event.h create mode 100644 xen/include/public/vm_event.h delete mode 100644 xen/include/xen/mem_event.h create mode 100644 xen/include/xen/monitor.h create mode 100644 xen/include/xen/vm_event.h -- 2.1.4 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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