From: HANNAS YAYA Issa <issa.hannasyaya@enseeiht.fr>
To: xen-devel@lists.xen.org
Subject: about cr3 register
Date: Wed, 01 Apr 2015 16:37:04 +0200 [thread overview]
Message-ID: <84e75c11446044541a3643b725743b26@inp-toulouse.fr> (raw)
Hi
I am working on memory management in xen. I encounter a problem that I
hope you can help me to solve it.
I modified the struct mmu_update in xen and linux source code. I add
two fields cr3 and addr which respectively contains the current cr3
value and the current address of the process associated with the pte to
be updated. the struct mmu_update is sent to the hyervisor via hypercall
HYPERVISOR_do_mmu_update.
In the handler of this hypercall (I mean do_mmu_update) when I read the
value of cr3 via the method read_cr3 it is different from the value I
stored before in the struct mmu_update. I wonder why?
next reply other threads:[~2015-04-01 14:37 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-01 14:37 HANNAS YAYA Issa [this message]
2015-04-02 9:53 ` about cr3 register George Dunlap
-- strict thread matches above, loose matches on Subject: below --
2015-04-01 14:31 HANNAS YAYA Issa
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