Hi all, I want to dump guest page table when guest writes to cr3, the code snipt below,
--- uint32_t pgd[1024][1024]; // guest page table static void dump_guest_pgtable(target_ulong cr3) { int i, j; uint32_t phyaddr = cr3; uint32_t val; for (i = 0; i < NUM_ENTRY; ++i) { phyaddr += i * 4; for (j = 0; j < NUM_ENTRY; ++j) { cpu_physical_memory_read(phyaddr, &val, 4); pgd[i][j] = val; } } } void cpu_x86_update_cr3(CPUX86State *env, target_ulong new_cr3) { env->cr[3] = new_cr3; // guest cr3 if (env->cr[0] & CR0_PG_MASK) { tlb_flush(env, 0); // dump guest page table by using guest cr3 dump_guest_pgtable(new_cr3); } } --- The system will hang while booting. However, if I comment cpu_physical_memory_read in function dump_guest_pgtable, there is no problem. What I am missing here? Thanks. Regards, chenwj -- Wei-Ren Chen (陳韋任) Computer Systems Lab, Institute of Information Science, Academia Sinica, Taiwan (R.O.C.) Tel:886-2-2788-3799 #1667 Homepage: http://people.cs.nctu.edu.tw/~chenwj