BALLOON_START_HCALL = 0xba00, // RAX: size
BALLOON_QUERY_HCALL = 0xba01, // RCX: req_pgs(out), RDX: alloc_pgs(out)
OS_DEBUG_HCALL = 0xc0c0, // RBX: msg_gpa, RCX: msg_len, RDX: buf_is_va (flag)
- TIME_CPUFREQ_HCALL = 0xd000 //RCX: cpu freq (out)
+ TIME_CPUFREQ_HCALL = 0xd000, //RBX: cpu freq (out)
+ TIME_RDHTSC_HCALL = 0xd001, //RBX: cpu freq (out)
} hcall_id_t;
return 0;
}
+static int handle_rdhtsc_hcall(struct guest_info * info, uint_t hcall_id, void * priv_data) {
+ struct vm_core_time * time_state = &(info->time_state);
+
+ info->vm_regs.rbx = v3_get_host_time(time_state);
+
+ // PrintDebug("Guest request host TSC: return %ld\n", (long)info->vm_regs.rbx);
+
+ return 0;
+}
+
int v3_start_time(struct guest_info * info) {
PrintDebug("Registering TIME_CPUFREQ hypercall.\n");
ret = v3_register_hypercall(vm, TIME_CPUFREQ_HCALL,
handle_cpufreq_hcall, NULL);
+ PrintDebug("Registering TIME_RDHTSC hypercall.\n");
+ ret = v3_register_hypercall(vm, TIME_RDHTSC_HCALL,
+ handle_rdhtsc_hcall, NULL);
handle_time_configuration(vm, v3_cfg_subtree(cfg_tree, "time"));