From: Gleb Natapov <gleb@redhat.com>
To: "Kohl, Bernhard (NSN - DE/Munich)" <bernhard.kohl@nsn.com>
Cc: jan.kiszka@web.de, avi@redhat.com, kvm@vger.kernel.org, "Ostler,
Thomas (NSN - DE/Munich)" <thomas.ostler@nsn.com>,
bliitz@users.sourceforge.net
Subject: Re: [PATCH 4/4] Fix task switching.
Date: Tue, 31 Mar 2009 18:22:40 +0300 [thread overview]
Message-ID: <20090331152240.GO25718@redhat.com> (raw)
In-Reply-To: <36DC3CEB93860B4099D43C4BAD63EBA2A37659@DEMUEXC005.nsn-intra.net>
On Tue, Mar 31, 2009 at 05:21:16PM +0200, Kohl, Bernhard (NSN - DE/Munich) wrote:
> Bernhard Kohl wrote:
> >
> > Jan Kiszka wrote:
> > >
> > > Gleb Natapov wrote:
> > > > The patch fixes two problems with task switching.
> > > > 1. Back link is written to a wrong TSS.
> > > > 2. Instruction emulation is not needed if the reason for
> > task switch
> > > > is a task gate in IDT and access to it is caused by an
> > > external even.
> > > >
> > > > 2 is currently solved only for VMX since there is not
> > > reliable way to
> > > > skip an instruction in SVM. We should emulate it instead.
> > >
> > > Does this series fix all issues Bernhard, Thomas and Julian
> > > stumbled over?
> > >
> > > Jan
> >
> > I will try this today. Thanks.
> >
> Yes, it works for us (Thomas + Bernhard).
>
Great. Thanks for testing.
--
Gleb.
next prev parent reply other threads:[~2009-03-31 15:23 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-29 14:12 [PATCH 1/4] Fix handling of a fault during NMI unblocked due to IRET Gleb Natapov
2009-03-29 14:12 ` [PATCH 2/4] Rewrite twisted maze of if() statements with more straightforward switch() Gleb Natapov
2009-03-30 7:35 ` Avi Kivity
2009-03-30 16:03 ` Jan Kiszka
2009-03-29 14:12 ` [PATCH 3/4] Do not zero idt_vectoring_info in vmx_complete_interrupts() Gleb Natapov
2009-03-29 14:12 ` [PATCH 4/4] Fix task switching Gleb Natapov
2009-03-30 7:39 ` Avi Kivity
2009-03-30 13:06 ` Gleb Natapov
2009-03-30 16:04 ` Jan Kiszka
2009-03-30 16:21 ` Gleb Natapov
2009-03-30 16:35 ` Jan Kiszka
2009-03-30 16:39 ` Gleb Natapov
2009-03-30 16:46 ` Gleb Natapov
2009-03-30 23:54 ` Julian Stecklina
2009-03-31 9:03 ` Kohl, Bernhard (NSN - DE/Munich)
2009-03-31 15:21 ` Kohl, Bernhard (NSN - DE/Munich)
2009-03-31 15:22 ` Gleb Natapov [this message]
2009-04-01 7:21 ` Jan Kiszka
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