Re: [Xen-devel] [PATCH 0/4] Add posted interrupt supporting

["Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx>]

Zhang, Yang Z wrote on 2013-04-09:
> From: Yang Zhang <yang.z.zhang@xxxxxxxxx>
> 
> The follwoing patches are adding the Posted Interrupt supporting to Xen:
> Posted Interrupt allows vAPIC interrupts to inject into guest directly
> without any vmexit.
> 
> - When delivering a interrupt to guest, if target vcpu is running,
>   update Posted-interrupt requests bitmap and send a notification event
>   to the vcpu. Then the vcpu will handle this interrupt automatically,
>   without any software involvemnt.
> - If target vcpu is not running or there already a notification event
>   pending in the vcpu, do nothing. The interrupt will be handled by
>   next vm entry
> Refer to Intel SDM vol3, 29.6  to get more information.
Hi Jan,

Are there any additional comments with this patch set? Also, what's your point 
of using static vector?
If no, I will rebase the patch according to current comments.

 
> Yang Zhang (4):
>   VMX: Detect posted interrupt capability
>   VMX: Turn on posted interrupt bit in vmcs
>   VMX: Add posted interrupt supporting
>   VMX: Use posted interrupt to deliver virutal interrupt
>  xen/arch/x86/hvm/vioapic.c                     |    4 +-
>  xen/arch/x86/hvm/vlapic.c                      |   19 +++++-
>  xen/arch/x86/hvm/vmsi.c                        |    5 +-
>  xen/arch/x86/hvm/vmx/vmcs.c                    |   18 +++++-
>  xen/arch/x86/hvm/vmx/vmx.c                     |   81
>  ++++++++++++++++++++++++ xen/arch/x86/hvm/vmx/vpmu_core2.c             
>  |    5 +- xen/arch/x86/hvm/vpt.c                         |   10 ++-
>  xen/include/asm-x86/hvm/hvm.h                  |    2 +
>  xen/include/asm-x86/hvm/vlapic.h               |    1 +
>  xen/include/asm-x86/hvm/vmx/vmcs.h             |   13 ++++
>  xen/include/asm-x86/hvm/vmx/vmx.h              |   22 +++++++
>  xen/include/asm-x86/mach-default/irq_vectors.h |    3 +- 12 files
>  changed, 172 insertions(+), 11 deletions(-)


Best regards,
Yang



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