-static bool host_supports_vmx(void)
-{
- uint32_t ecx, unused;
-
- host_cpuid(1, 0, &unused, &unused, &ecx, &unused);
- return ecx & CPUID_EXT_VMX;
-}
-
-#define VMX_INVALID_GUEST_STATE 0x80000021
-
-int kvm_arch_handle_exit(CPUState *env, struct kvm_run *run)
-{
- uint64_t code;
- int ret;
-
- switch (run->exit_reason) {
- case KVM_EXIT_HLT:
- DPRINTF("handle_hlt\n");
- ret = kvm_handle_halt(env);
- break;
- case KVM_EXIT_SET_TPR:
- ret = 0;
- break;
- case KVM_EXIT_FAIL_ENTRY:
- code = run->fail_entry.hardware_entry_failure_reason;
- fprintf(stderr, "KVM: entry failed, hardware error 0x%" PRIx64 "\n",
- code);
- if (host_supports_vmx() && code == VMX_INVALID_GUEST_STATE) {
- fprintf(stderr,
- "\nIf you're runnning a guest on an Intel machine without "
- "unrestricted mode\n"
- "support, the failure can be most likely due to the guest "
- "entering an invalid\n"
- "state for Intel VT. For example, the guest maybe running "
- "in big real mode\n"
- "which is not supported on less recent Intel processors."
- "\n\n");
- }
- ret = -1;
- break;
- case KVM_EXIT_EXCEPTION:
- fprintf(stderr, "KVM: exception %d exit (error code 0x%x)\n",
- run->ex.exception, run->ex.error_code);
- ret = -1;
- break;
- default:
- fprintf(stderr, "KVM: unknown exit reason %d\n", run->exit_reason);
- ret = -1;
- break;
- }
-
- return ret;
-}
-