Messages in this thread | | | Date | Wed, 5 Sep 2012 10:33:50 -0400 | From | Konrad Rzeszutek Wilk <> | Subject | Re: [PATCH] xen: fix logical error in tlb flushing |
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On Wed, Sep 05, 2012 at 05:41:37AM +0000, Ren, Yongjie wrote: > > -----Original Message----- > > From: Shi, Alex > > Sent: Wednesday, September 05, 2012 1:35 PM > > To: Jan Beulich > > Cc: Konrad Rzeszutek Wilk; tglx@linutronix.de; mingo@redhat.com; > > linux-kernel@vger.kernel.org; hpa@zytor.com; Ren, Yongjie > > Subject: Re: [PATCH] xen: fix logical error in tlb flushing > > > > On 08/25/2012 03:45 AM, Jan Beulich wrote: > > > > >>>> On 24.08.12 at 20:17, Konrad Rzeszutek Wilk > > <konrad.wilk@oracle.com> wrote: > > >> On Fri, Aug 24, 2012 at 04:16:39PM +0100, Jan Beulich wrote: > > >>>>>> On 24.08.12 at 10:55, Alex Shi <alex.shi@intel.com> wrote: > > >>>> While TLB_FLUSH_ALL gets passed as 'end' argument to > > >>>> flush_tlb_others(), the Xen code was made to check its 'start' > > >>>> parameter. That may give a incorrect op.cmd to > > MMUEXT_INVLPG_MULTI > > >>>> instead of MMUEXT_TLB_FLUSH_MULTI. Then it causes some page > > can not > > >>>> be flushed from TLB. > > >>>> > > >>>> This patch fixed this issue. > > >>>> > > >>>> Reported-by: Jan Beulich <jbeulich@suse.com> > > >>>> Signed-off-by: Alex Shi <alex.shi@intel.com> > > >>> > > >>> Acked-by: Jan Beulich <jbeulich@suse.com> > > > Tested-by: Yongjie Ren <yongjie.ren@intel.com> > > > > > CC to Yongjie, > > Could you like to test this patch on PV guest > > > Xen Dom0 and a PV guest kernel with this patch can boot up correctly.
OK, applied for v3.6
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