Re: [Xen-devel] [PATCH v3 0/5] Add posted interrupt supporting

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 17.04.13 at 18:56, Keir Fraser <keir.xen@xxxxxxxxx> wrote:
> On 17/04/2013 15:50, "Yang Zhang" <yang.z.zhang@xxxxxxxxx> wrote:
> 
>> From: Yang Zhang <yang.z.zhang@xxxxxxxxx>
> 
> I continue to be happy with this series, needs Ack/commit from Jan though of
> course, who picked up on good stuff last time round!

With a tiny bit of further cleanup I'll commit this as soon as George
gave his okay.

Jan

>> 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.
>> 
>> Changes from v2 to v3:
>> * Remove unused global vector POSTED_INTR_VECTOR.
>> * Use bitmap to define pi_desc->pir.
>> * Refine vmx_sync_pir_to_irr() to use bitmap related operations.
>> * Minor adjustments according Jan's comments.
>> 
>> Changes from v1 to v2:
>> * Allocate posted interrupt vector dynamically.
>> * Use vlapic_set_vector() to sync pir to irr.
>> * Refine vlapic_set_irq() and call it to deliver virtual interrupt.
>> * Rebase on top of Xen.
>> 
>> Yang Zhang (5):
>>   VMX: Detect posted interrupt capability
>>   VMX: Turn on posted interrupt bit in vmcs
>>   VMX: Add posted interrupt supporting
>>   Call vlapic_set_irq() to delivery virtual interrupt
>>   VMX: Use posted interrupt to deliver virutal interrupt
>> 
>>  xen/arch/x86/hvm/vioapic.c         |    3 +-
>>  xen/arch/x86/hvm/vlapic.c          |   38 +++++++-------------
>>  xen/arch/x86/hvm/vmsi.c            |    3 +-
>>  xen/arch/x86/hvm/vmx/vmcs.c        |   20 ++++++++++-
>>  xen/arch/x86/hvm/vmx/vmx.c         |   70
>> ++++++++++++++++++++++++++++++++++++
>>  xen/include/asm-x86/bitops.h       |   10 +++++
>>  xen/include/asm-x86/hvm/hvm.h      |    2 +
>>  xen/include/asm-x86/hvm/vlapic.h   |   19 +++++++++-
>>  xen/include/asm-x86/hvm/vmx/vmcs.h |   14 +++++++
>>  xen/include/asm-x86/hvm/vmx/vmx.h  |   25 +++++++++++++
>>  10 files changed, 173 insertions(+), 31 deletions(-)
>> 




_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel