[Xen-devel] RE: [PATCh][VT] do_block upon hlt instruction

["Nakajima, Jun" <jun.nakajima@xxxxxxxxx>]

Nakajima, Jun wrote:
> This patch fixes a bug where raise_softirq(SCHEDULE_SOFTIRQ) is
> called upon a hlt instruction from a VMX guest, causing repeated
> VMExits when the guest is idle. At the same time, it disables the
> monitor/mwait feature as it's not feasible to implement for vcpu.   
> 
> Signed-off-by: Xiaofeng Ling <xiaofeng.ling@xxxxxxxxx>
> Signed-off-by: Asit Mallick <asit.k.mallick@xxxxxxxxx>
> Signed-off-by: Jun Nakajima <jun.nakajima@xxxxxxxxx>
> 
>  arch/x86/vmx.c               |   16 +++++++++++++---
>  arch/x86/vmx_intercept.c     |    3 +++
>  include/asm-x86/vmx_virpit.h |    4 ++--
> 3 files changed, 18 insertions(+), 5 deletions(-)
> 
> Jun
> ---
> Intel Open Source Technology Center

The patch is attached.


Jun
---
Intel Open Source Technology Center

Attachment: do_block.patch
Description: do_block.patch

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