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Re: [PATCH v5 2/3] xen/oprofile: use NMI continuation for sending virq to guest

To: Juergen Gross <jgross@xxxxxxxx>
From: Jan Beulich <jbeulich@xxxxxxxx>
Date: Thu, 12 Nov 2020 14:43:24 +0100
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
Delivery-date: Thu, 12 Nov 2020 13:43:31 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 12.11.2020 14:14, Juergen Gross wrote:
> Instead of calling send_guest_vcpu_virq() from NMI context use the
> NMI continuation framework for that purpose. This avoids taking locks
> in NMI mode.
> 
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

References:
- [PATCH v5 0/3] xen/x86: implement NMI continuation
  - From: Juergen Gross
- [PATCH v5 2/3] xen/oprofile: use NMI continuation for sending virq to guest
  - From: Juergen Gross

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