lkml.org 
[lkml]   [2010]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    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.

    --
    Gleb.


    \
     
     \ /
      Last update: 2010-01-17 15:47    [W:0.021 / U:0.392 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site