Hi, For I want to translate the virtual address in HVM DomU to virtual address in Xen. But when I use the function paging_gva_to_gfn and get_gfn, I can feel the performance down quickly, the machine become very hot and then I have to force the machine shutting down.
The codes I used as below: uint32_t pfec = PFEC_page_present; unsigned long gfn; unsigned long mfn; unsigned long virtaddr; struct vcpu *vcpu = current; struct domain *d = vcpu->domain; gfn = paging_gva_to_gfn(current, 0xc0290000, &pfec); mfn = get_gfn(d, gfn, &t); virtaddr = map_domain_page(mfn_x(mfn)); I also use the dbg_hvm_va2mfn function in debug.c, performance problem still present. I don't know why, could someone give me some advices. Thanks for any advice and best regards! xinyue
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