On 04/01/2010 12:05 PM, Xiao Guangrong wrote:
We've considered this in the past, it makes sense. The big question is
whether any guests actually map the same page table through PDEs with
different permissions (mapping the same page table through multiple PDEs
is very common, but always with th
Avi Kivity wrote:
>>
>
> We've considered this in the past, it makes sense. The big question is
> whether any guests actually map the same page table through PDEs with
> different permissions (mapping the same page table through multiple PDEs
> is very common, but always with the same perm
On 03/30/2010 04:59 AM, Xiao Guangrong wrote:
When we cached shadow page tables, one guest page table may have
many shadow pages, take below case for example:
(RO+U) ---> |--| __ |--|
(W+U ) ---> | GP1 | || GP2 |
(W+P ) ---> |--| |--> |--|
There have 3 ki
When we cached shadow page tables, one guest page table may have
many shadow pages, take below case for example:
(RO+U) ---> |--| __ |--|
(W+U ) ---> | GP1 | || GP2 |
(W+P ) ---> |--| |--> |--|
There have 3 kinds of permission mapping to GP1, so we should
allocate
