lkml.org 
[lkml]   [2010]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 3/4] KVM: MMU: track dirty page in speculative path properly
    On Tue, Jul 13, 2010 at 05:45:27PM +0800, Xiao Guangrong wrote:
    > In speculative path, the page is not real write-access, no need mark it
    > dirty, so clear dirty bit in this path and later examine this bit when
    > we release the page
    >
    > Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
    > ---
    > arch/x86/kvm/mmu.c | 24 +++++++++++-------------
    > 1 files changed, 11 insertions(+), 13 deletions(-)

    Unfortunately all pages that kvm creates translations for are marked
    dirty due to get_user_pages(w=1), except KSM which makes them read-only
    later.




    \
     
     \ /
      Last update: 2010-07-14 00:11    [W:0.020 / U:34.840 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site