[Xen-ia64-devel] [PATCH][RFC] fix ia64_leave_hypervisor

[Isaku Yamahata <yamahata@xxxxxxxxxxxxx>]

fix ia64_leave_hypervisor. It doesn't restore cr.ifs depending on pNonSys.
However cr.ifs isn't preserved between vcpu context switch so that
hypervisor bits are leaked as ar.cfm to HVM domain.
This patche fixes it.


This issue is introduced by the following patch set.
Does the attached patch harm performance?

changeset:   13774:18a8e34e1211
user:        awilliam@xxxxxxxxxxxx
date:        Thu Feb 01 12:53:34 2007 -0700
files:       xen/arch/ia64/vmx/vmx_entry.S xen/arch/ia64/vmx/vmx_ivt.S 
xen/arch/ia64/vmx/vmx_minstate.h xen/arch/ia64/vmx/vmx_process.c
description:
[IA64] Optimize VTI domain hypercall path

Signed-off-by: Anthony Xu <anthony.xu@xxxxxxxxx>

-- 
yamahata

Attachment: 16116_79c5e792f49d_fix_ia64_leave_hypervisor.patch
Description: Text Data

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