[Xen-devel] create shadow pages

[ding baozeng <baozengding@xxxxxxxxx>]

Hi, 
I alloc some memory (some pages)in the hvm domU kernel space, but not map it. So the kernel space could not access the memory by its guest tables. But I
would access it by shadow pages for some use. When the shadow pages are built, they should be in memory always and should not be paged out. 
Then how to create the shadow pages for the memory? My hvm is 32 bit , with PAE, So sl3,sl2,sl1 shadow pages  need to be created, which API should I use? 
ps, I took a look at the code of shadow table, especially multi.c, gust_walk.c, common.c, but still have no solution. 

Best Regards,

                                            Baozeng Ding
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