[lkml]   [2010]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH v3 04/12] Add "handle page fault" PV helper.
On Thu, Jan 14, 2010 at 06:31:07PM +0100, Peter Zijlstra wrote:
> On Tue, 2010-01-05 at 16:12 +0200, Gleb Natapov wrote:
> > Allow paravirtualized guest to do special handling for some page faults.
> >
> > The patch adds one 'if' to do_page_fault() function. The call is patched
> > out when running on physical HW. I ran kernbech on the kernel with and
> > without that additional 'if' and result were rawly the same:
> So why not program a different handler address for the #PF/#GP faults
> and avoid the if all together?
I would gladly use fault vector reserved by x86 architecture, but I am
not sure Intel will be happy about it.


 \ /
  Last update: 2010-01-17 15:47    [W:0.197 / U:2.708 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site