Re: How to recreate MOV-SS blocking vmentry fail

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Wed, Sep 11, 2013 at 09:04:26PM +0800, Arthur Chunqi Li wrote:
> On Wed, Sep 11, 2013 at 9:03 PM, Gleb Natapov <gleb@xxxxxxxxxx> wrote:
> > On Wed, Sep 11, 2013 at 03:01:07PM +0200, Paolo Bonzini wrote:
> >> Il 11/09/2013 14:53, Gleb Natapov ha scritto:
> >> >> > I was trying to recreate MOV-SS blocking vmentry fail (Intel SDM 26.1,
> >> >> > 5. a). Here the manual refers to Table 24-3, but later in 26.3.1.5
> >> >> > also describe it. I got confused how this scenario can be recreated.
> >> >> > Do you have any ideas?
> >> >> >
> >> > mov $0, %ss
> >> > vmlaunch
> >>
> >> Probably better to save %ss somewhere around these instructions... :)
> >>
> > Details, details :) It can be:
> > mov %ss, tmp
> > mov tmp, $ss
> > vmlaunch
> Well, this seems hard to test this in our framework ;( vmlaunch is
> surrounded with many instructions and we cannot add vmlaunch in exit
> handler.
> 
Well, we can put moves always there, or write special test for it, but it
is nice to have test, but not very important.

--
			Gleb.
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux