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[PATCH v1 0/7] consolidate vm event subsystem


  • To: <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Penny Zheng <Penny.Zheng@xxxxxxx>
  • Date: Thu, 13 Nov 2025 11:16:23 +0800
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  • Cc: Penny Zheng <Penny.Zheng@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, "Andrew Cooper" <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Jason Andryuk <jason.andryuk@xxxxxxx>, "Tamas K Lengyel" <tamas@xxxxxxxxxxxxx>, Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>, Petre Pircalabu <ppircalabu@xxxxxxxxxxxxxxx>, Anthony PERARD <anthony.perard@xxxxxxxxxx>, Michal Orzel <michal.orzel@xxxxxxx>, "Julien Grall" <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 13 Nov 2025 03:17:20 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

This patch serie originates from "Disable domctl-op via CONFIG_MGMT_HYPERCALLS"
[1], and focuses on consolidating vm event subsystem (i.e. VM_EVENT), and its
derived features, like memory paging, etc.

[1] https://www.mail-archive.com/xen-devel@xxxxxxxxxxxxxxxxxxxx/msg200843.html

Penny Zheng (7):
  xen/svm: limit the scope of "rc"
  xen/vm_event: introduce vm_event_is_enabled()
  xen/monitor: wrap monitor_op under CONFIG_VM_EVENT
  xen/p2m: move xenmem_access_to_p2m_access() to common p2m.c
  xen/x86: move declaration from mem_access.h to altp2m.h
  xen/mem_access: wrap memory access when VM_EVENT=n
  xen/vm_event: consolidate CONFIG_VM_EVENT

 xen/arch/x86/Makefile                 |   2 +-
 xen/arch/x86/hvm/Kconfig              |   1 -
 xen/arch/x86/hvm/Makefile             |   4 +-
 xen/arch/x86/hvm/emulate.c            |  67 +++++++-------
 xen/arch/x86/hvm/hvm.c                | 123 ++++++++++++++++----------
 xen/arch/x86/hvm/svm/intr.c           |   2 +-
 xen/arch/x86/hvm/svm/svm.c            |  82 +++++++++++------
 xen/arch/x86/hvm/vmx/intr.c           |   2 +-
 xen/arch/x86/hvm/vmx/vmx.c            |  73 +++++++++------
 xen/arch/x86/include/asm/altp2m.h     |  10 +++
 xen/arch/x86/include/asm/hvm/hvm.h    |  18 ++--
 xen/arch/x86/include/asm/mem_access.h |  20 ++---
 xen/arch/x86/include/asm/monitor.h    |   9 ++
 xen/arch/x86/include/asm/vm_event.h   |   8 ++
 xen/arch/x86/mm/mem_access.c          |  36 --------
 xen/arch/x86/mm/mem_sharing.c         |   3 +
 xen/arch/x86/mm/p2m.c                 |  38 ++++++++
 xen/common/Kconfig                    |   7 +-
 xen/include/xen/vm_event.h            |   7 ++
 19 files changed, 319 insertions(+), 193 deletions(-)

-- 
2.34.1




 


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