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[Xen-devel] No need to flush TLB in do_mmu_update ?

To: Xen-devel@xxxxxxxxxxxxx
From: Xinxin Jin <xinxinjin89@xxxxxxxxx>
Date: Thu, 16 May 2013 16:57:34 -0700
Delivery-date: Thu, 16 May 2013 23:57:57 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

Hi, I read the code of the hypercall handler do_mmu_update(), which updates guests' page table. I thought after update it should flush the old mapping from relative TLB entry. However I didn't find any TLB flush operations in this function. Could anyone explain what is the reason behind ? Thanks a lot !

Xinxin

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