[lkml]   [2011]   [Aug]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: [PATCH 02/11] KVM: x86: tag the instructions which are used to write page table
    On Tue, Aug 16, 2011 at 02:41:27PM +0800, Xiao Guangrong wrote:
    > The idea is from Avi:
    > | tag instructions that are typically used to modify the page tables, and
    > | drop shadow if any other instruction is used.
    > | The list would include, I'd guess, and, or, bts, btc, mov, xchg, cmpxchg,
    > | and cmpxchg8b.
    > This patch is used to tag the instructions and in the later path, shadow page
    > is dropped if it is written by other instructions

    What is the advantage of doing this again? What is the point of
    dropping shadow if the instruction is emulated?

     \ /
      Last update: 2011-08-22 16:35    [W:0.018 / U:22.512 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site