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Re: [Xen-devel] [PATCH 2/3] tools/libxencalls: add new function to query hypercall buffer safety

To: Juergen Gross <jgross@xxxxxxxx>
From: Ian Jackson <ian.jackson@xxxxxxxxxx>
Date: Fri, 15 Jun 2018 15:49:13 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx, wei.liu2@xxxxxxxxxx
Delivery-date: Fri, 15 Jun 2018 14:49:47 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

Juergen Gross writes ("[PATCH 2/3] tools/libxencalls: add new function to query 
hypercall buffer safety"):
> Add a new function to query whether hypercall buffers are always safe
> to access by the hypervisor or might result in EFAULT.

Acked-by: Ian Jackson <ian.jackson@xxxxxxxxxxxxx>

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References:
- [Xen-devel] [PATCH 0/3] fix hypercall buffer locking in memory
  - From: Juergen Gross
- [Xen-devel] [PATCH 2/3] tools/libxencalls: add new function to query hypercall buffer safety
  - From: Juergen Gross

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