[lkml]   [2010]   [Jan]   [18]   [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 01/17/2010 06:44 AM, Gleb Natapov wrote:
    > 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.

    That's what it's there for... see Peter Z.'s response.


     \ /
      Last update: 2010-01-18 09:41    [W:0.019 / U:65.232 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site