lkml.org 
[lkml]   [2014]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v6 2/2] KVM: nVMX: nested TPR shadow/threshold emulation
On Fri, Aug 22, 2014 at 10:36:07AM +0200, Paolo Bonzini wrote:
>Il 22/08/2014 01:30, Wanpeng Li ha scritto:
>> Maybe I misunderstand your comments "On real hardware you could point
>> the virtual-APIC page to an invalid address."
>> http://lists.openwall.net/linux-kernel/2014/08/07/344
>>
>
>That referred to an address that doesn't correspond to RAM. You can use
>addresses like these in a real processor.
>
>But the manual says that "if the “use TPR shadow” VM-execution control
>is 1, VM entry ensures that the virtual-APIC address is 4-KByte aligned"
>(24.6.8 Controls For APIC Virtualization). This is the check that is
>missing.

Ok, thanks.

Regards,
Wanpeng Li
>
>Paolo
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2014-08-22 11:01    [W:0.031 / U:1.060 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site