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#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <sys/utsname.h>
#include "android/kvm.h"
#include "android/utils/debug.h"
#define D(...) VERBOSE_PRINT(init,__VA_ARGS__)
/* A simple routine used to check that we can run the program under KVM.
* We simply want to ensure that the kvm driver is loaded and that the
* corresponding device file is accessible by the user.
*/
#ifndef __linux__
#error "This file should only be compiled under linux"
#endif
int
kvm_check_allowed(void)
{
char* kvm_device = getenv(KVM_DEVICE_NAME_ENV);
if (NULL == kvm_device) {
kvm_device = "/dev/kvm";
}
/* Is there a /dev/kvm device file here? */
if (access(kvm_device,F_OK)) {
/* no need to print a warning here */
D("No kvm device file detected");
return 0;
}
/* Can we access it? */
if (access(kvm_device,R_OK)) {
D("KVM device file is not readable for this user.");
return 0;
}
D("KVM mode auto-enabled!");
return 1;
}
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