1 /* Copyright (C) 2007-2008 The Android Open Source Project 2 ** 3 ** This software is licensed under the terms of the GNU General Public 4 ** License version 2, as published by the Free Software Foundation, and 5 ** may be copied, distributed, and modified under those terms. 6 ** 7 ** This program is distributed in the hope that it will be useful, 8 ** but WITHOUT ANY WARRANTY; without even the implied warranty of 9 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 ** GNU General Public License for more details. 11 */ 12 #include "hw/hw.h" 13 #include "hw/android/goldfish/vmem.h" 14 #ifdef TARGET_I386 15 #include "sysemu/kvm.h" 16 #endif 17 18 19 // Both safe_memory_rw_debug and safe_get_phys_page_debug need to translate 20 // virtual addresses to physical addresses. When running on KVM we need to 21 // pull the cr registers and hflags from the VCPU. These functions wrap the 22 // calls to kvm_get_sregs to pull these registers over when necessary. 23 // 24 // Note: we do not call the cpu_synchronize_state function because that pulls 25 // all the VCPU registers. That equates to 4 ioctls on the KVM virtual device 26 // and on AMD some of those ioctls (in particular KVM_GET_MSRS) are 10 to 100x 27 // slower than on Intel chips. 28 29 int safe_memory_rw_debug(CPUState *cpu, target_ulong addr, uint8_t *buf, 30 int len, int is_write) 31 { 32 #ifdef TARGET_I386 33 if (kvm_enabled()) { 34 kvm_get_sregs(cpu); 35 } 36 #endif 37 return cpu_memory_rw_debug(cpu, addr, buf, len, is_write); 38 } 39 40 hwaddr safe_get_phys_page_debug(CPUState *cpu, target_ulong addr) 41 { 42 CPUArchState *env = cpu->env_ptr; 43 44 #ifdef TARGET_I386 45 if (kvm_enabled()) { 46 kvm_get_sregs(cpu); 47 } 48 #endif 49 return cpu_get_phys_page_debug(env, addr); 50 } 51 52
