X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?a=blobdiff_plain;f=palacios%2Fsrc%2Fdevices%2Fpara_net.c;fp=palacios%2Fsrc%2Fdevices%2Fpara_net.c;h=405b9c6c1416f3519c6a74c2fc28667910743b83;hb=a5347db03b69dc64ce283e67b624f63baa0c364e;hp=0000000000000000000000000000000000000000;hpb=2d2b2257674552601f1527cf2f6630fb1995f6c2;p=palacios.git

diff --git a/palacios/src/devices/para_net.c b/palacios/src/devices/para_net.c
new file mode 100644
index 0000000..405b9c6
--- /dev/null
+++ b/palacios/src/devices/para_net.c
@@ -0,0 +1,127 @@
+/* 
+ * This file is part of the Palacios Virtual Machine Monitor developed
+ * by the V3VEE Project with funding from the United States National 
+ * Science Foundation and the Department of Energy.  
+ *
+ * The V3VEE Project is a joint project between Northwestern University
+ * and the University of New Mexico.  You can find out more at 
+ * http://www.v3vee.org
+ *
+ * Copyright (c) 2008, Jack Lange <jarusl@cs.northwestern.edu> 
+ * Copyright (c) 2008, The V3VEE Project <http://www.v3vee.org> 
+ * All rights reserved.
+ *
+ * Author: Jack Lange <jarusl@cs.northwestern.edu>
+ *
+ * This is free software.  You are permitted to use,
+ * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
+ */
+
+#include <devices/para_net.h>
+#include <palacios/vmm.h>
+#include <palacios/vm_guest_mem.h>
+#include <palacios/vmm_hypercall.h>
+
+#define TX_HYPERCALL 0x300
+#define RX_HYPERCALL 0x301
+#define MACADDR_HYPERCALL 0x302
+
+
+struct nic_state {    
+    uchar_t mac_addr[6];
+};
+
+
+
+static int tx_call(struct guest_info * info, uint_t call_no, void * priv_data) {
+    //    struct nic_state * nic = (struct nic_state *)priv_data;
+    addr_t pkt_gpa = info->vm_regs.rbx;
+    int pkt_len = info->vm_regs.rcx;
+    uchar_t * pkt = V3_Malloc(pkt_len);
+    
+    PrintDebug("Transmitting Packet\n");
+    
+    if (read_guest_pa_memory(info, pkt_gpa, pkt_len, pkt) != -1) {
+	return -1;
+    }
+    
+    
+    return -1;
+}
+
+
+static int rx_call(struct guest_info * info, uint_t call_no, void * priv_data) {
+    //    struct nic_state * nic = (struct nic_state *)priv_data;
+    addr_t pkt_gpa = info->vm_regs.rbx;
+    uint_t pkt_len = 0;
+    uchar_t * pkt = NULL;
+
+    PrintDebug("Receiving Packet\n");
+    return -1;
+
+    if (write_guest_pa_memory(info, pkt_gpa, pkt_len, pkt) != -1) {
+	return -1;
+    }
+
+    return -1;
+}
+
+
+static int macaddr_call(struct guest_info * info, uint_t call_no, void * priv_data) {
+    struct nic_state * nic = (struct nic_state *)priv_data;
+    addr_t mac_gpa = info->vm_regs.rbx;
+
+
+    PrintDebug("Returning MAC ADDR\n");
+    
+    if (write_guest_pa_memory(info, mac_gpa, 6, nic->mac_addr) != 6) {
+	PrintError("Could not write mac address\n");
+	return -1;
+    }
+
+    return 0;
+}
+
+static int net_init(struct vm_device * dev) {
+    struct nic_state * nic = (struct nic_state *)dev->private_data;
+
+    v3_register_hypercall(dev->vm, TX_HYPERCALL, tx_call, nic);
+    v3_register_hypercall(dev->vm, RX_HYPERCALL, rx_call, nic);
+    v3_register_hypercall(dev->vm, MACADDR_HYPERCALL, macaddr_call, nic);
+
+    nic->mac_addr[0] = 0x52;
+    nic->mac_addr[1] = 0x54;
+    nic->mac_addr[2] = 0x00;
+    nic->mac_addr[3] = 0x12;
+    nic->mac_addr[4] = 0x34;
+    nic->mac_addr[5] = 0x56;
+
+    return 0;
+}
+
+static int net_deinit(struct vm_device * dev) {
+
+    return 0;
+}
+
+
+static struct vm_device_ops dev_ops = {
+    .init = net_init,
+    .deinit = net_deinit,
+    .reset = NULL,
+    .start = NULL,
+    .stop = NULL,
+};
+
+
+struct vm_device * v3_create_para_net() {
+    struct nic_state * state = NULL;
+
+    state = (struct nic_state *)V3_Malloc(sizeof(struct nic_state));
+
+    PrintDebug("Creating VMNet Device\n");
+
+    struct vm_device * device = v3_create_device("VMNET", &dev_ops, state);
+
+    return device;
+}