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Re: [PATCH v13 1/3] xen/mem_sharing: VM forking


On 30/03/2020 16:02, Tamas K Lengyel wrote:
VM forking is the process of creating a domain with an empty memory space and a
parent domain specified from which to populate the memory when necessary. For
the new domain to be functional the VM state is copied over as part of the fork
operation (HVM params, hap allocation, etc).

Signed-off-by: Tamas K Lengyel <tamas.lengyel@xxxxxxxxx>
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
v13: Address issues pointed out by Roger & Jan
      Introduce & use PAGE_OFFSET to calculate vcpu_info offset
  xen/arch/x86/domain.c             |  13 ++
  xen/arch/x86/hvm/hvm.c            |   4 +-
  xen/arch/x86/mm/hap/hap.c         |   3 +-
  xen/arch/x86/mm/mem_sharing.c     | 351 ++++++++++++++++++++++++++++++
  xen/arch/x86/mm/p2m.c             |   9 +-
  xen/include/asm-arm/page.h        |   1 +

For the Arm change:

Acked-by: Julien Grall <jgrall@xxxxxxxxxx>


Julien Grall



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