1 #include <unistd.h> 2 #include <string.h> 3 #include <sys/utsname.h> 4 #include "android/utils/debug.h" 5 6 #define D(...) VERBOSE_PRINT(init,__VA_ARGS__) 7 8 /* A simple routine used to check that we can run the program under KVM. 9 * We simply want to ensure that the kvm driver is loaded and that the 10 * corresponding device file is accessible by the user. 11 */ 12 13 #ifndef __linux__ 14 #error "This file should only be compiled under linux" 15 #endif 16 17 int 18 kvm_check_allowed(void) 19 { 20 /* Is there a /dev/kvm device file here? */ 21 if (access("/dev/kvm",F_OK)) { 22 /* no need to print a warning here */ 23 D("No kvm device file detected"); 24 return 0; 25 } 26 27 /* Can we access it? */ 28 if (access("/dev/kvm",R_OK)) { 29 D("KVM device file is not readable for this user."); 30 return 0; 31 } 32 33 D("KVM mode auto-enabled!"); 34 return 1; 35 } 36 37
