From 1941d19c657a8084603e88d7860786baa40c0e80 Mon Sep 17 00:00:00 2001
From: bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Thu, 17 Aug 2006 10:46:34 +0000
Subject: [PATCH] PCI save/restore changes

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2115 c046a42c-6fe2-441c-8c8c-71466251a162
---
 hw/ne2000.c   | 23 ++++++++++++++++-------
 hw/pci.c      | 15 ++++++++-------
 hw/piix_pci.c | 16 +++++++++++++++-
 hw/rtl8139.c  | 16 +++++++++++-----
 4 files changed, 50 insertions(+), 20 deletions(-)

diff --git a/hw/ne2000.c b/hw/ne2000.c
index e23c6df..14d48ee 100644
--- a/hw/ne2000.c
+++ b/hw/ne2000.c
@@ -648,6 +648,9 @@ static void ne2000_save(QEMUFile* f,void* opaque)
 {
 	NE2000State* s=(NE2000State*)opaque;
 
+        if (s->pci_dev)
+            pci_device_save(s->pci_dev, f);
+
         qemu_put_8s(f, &s->rxcr);
 
 	qemu_put_8s(f, &s->cmd);
@@ -673,13 +676,21 @@ static void ne2000_save(QEMUFile* f,void* opaque)
 static int ne2000_load(QEMUFile* f,void* opaque,int version_id)
 {
 	NE2000State* s=(NE2000State*)opaque;
+        int ret;
+
+        if (version_id > 3)
+            return -EINVAL;
+
+        if (s->pci_dev && version_id >= 3) {
+            ret = pci_device_load(s->pci_dev, f);
+            if (ret < 0)
+                return ret;
+        }
 
-        if (version_id == 2) {
+        if (version_id >= 2) {
             qemu_get_8s(f, &s->rxcr);
-        } else if (version_id == 1) {
-            s->rxcr = 0x0c;
         } else {
-            return -EINVAL;
+            s->rxcr = 0x0c;
         }
 
 	qemu_get_8s(f, &s->cmd);
@@ -810,7 +821,5 @@ void pci_ne2000_init(PCIBus *bus, NICInfo *nd)
              s->macaddr[5]);
              
     /* XXX: instance number ? */
-    register_savevm("ne2000", 0, 2, ne2000_save, ne2000_load, s);
-    register_savevm("ne2000_pci", 0, 1, generic_pci_save, generic_pci_load, 
-                    &d->dev);
+    register_savevm("ne2000", 0, 3, ne2000_save, ne2000_load, s);
 }
diff --git a/hw/pci.c b/hw/pci.c
index 85531f7..75bd981 100644
--- a/hw/pci.c
+++ b/hw/pci.c
@@ -36,6 +36,8 @@ struct PCIBus {
     PCIDevice *devices[256];
 };
 
+static void pci_update_mappings(PCIDevice *d);
+
 target_phys_addr_t pci_mem_base;
 static int pci_irq_index;
 static PCIBus *first_bus;
@@ -56,21 +58,20 @@ int pci_bus_num(PCIBus *s)
     return s->bus_num;
 }
 
-void generic_pci_save(QEMUFile* f, void *opaque)
+void pci_device_save(PCIDevice *s, QEMUFile *f)
 {
-    PCIDevice* s=(PCIDevice*)opaque;
-
+    qemu_put_be32(f, 1); /* PCI device version */
     qemu_put_buffer(f, s->config, 256);
 }
 
-int generic_pci_load(QEMUFile* f, void *opaque, int version_id)
+int pci_device_load(PCIDevice *s, QEMUFile *f)
 {
-    PCIDevice* s=(PCIDevice*)opaque;
-
+    uint32_t version_id;
+    version_id = qemu_get_be32(f);
     if (version_id != 1)
         return -EINVAL;
-
     qemu_get_buffer(f, s->config, 256);
+    pci_update_mappings(s);
     return 0;
 }
 
diff --git a/hw/piix_pci.c b/hw/piix_pci.c
index 1f7ad94..672b736 100644
--- a/hw/piix_pci.c
+++ b/hw/piix_pci.c
@@ -181,6 +181,20 @@ static void piix3_reset(PCIDevice *d)
     pci_conf[0xae] = 0x00;
 }
 
+static void piix_save(QEMUFile* f, void *opaque)
+{
+    PCIDevice *d = opaque;
+    pci_device_save(d, f);
+}
+
+static int piix_load(QEMUFile* f, void *opaque, int version_id)
+{
+    PCIDevice *d = opaque;
+    if (version_id != 2)
+        return -EINVAL;
+    return pci_device_load(d, f);
+}
+
 int piix3_init(PCIBus *bus)
 {
     PCIDevice *d;
@@ -188,7 +202,7 @@ int piix3_init(PCIBus *bus)
 
     d = pci_register_device(bus, "PIIX3", sizeof(PCIDevice),
                                     -1, NULL, NULL);
-    register_savevm("PIIX3", 0, 1, generic_pci_save, generic_pci_load, d);
+    register_savevm("PIIX3", 0, 2, piix_save, piix_load, d);
 
     piix3_dev = d;
     pci_conf = d->config;
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 9c613a8..db6353a 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -3122,6 +3122,8 @@ static void rtl8139_save(QEMUFile* f,void* opaque)
     RTL8139State* s=(RTL8139State*)opaque;
     int i;
 
+    pci_device_save(s->pci_dev, f);
+
     qemu_put_buffer(f, s->phys, 6);
     qemu_put_buffer(f, s->mult, 8);
 
@@ -3203,12 +3205,18 @@ static void rtl8139_save(QEMUFile* f,void* opaque)
 static int rtl8139_load(QEMUFile* f,void* opaque,int version_id)
 {
     RTL8139State* s=(RTL8139State*)opaque;
-    int i;
+    int i, ret;
 
     /* just 2 versions for now */
-    if (version_id > 2)
+    if (version_id > 3)
             return -EINVAL;
 
+    if (version_id >= 3) {
+        ret = pci_device_load(s->pci_dev, f);
+        if (ret < 0)
+            return ret;
+    }
+
     /* saved since version 1 */
     qemu_get_buffer(f, s->phys, 6);
     qemu_get_buffer(f, s->mult, 8);
@@ -3457,9 +3465,7 @@ void pci_rtl8139_init(PCIBus *bus, NICInfo *nd)
     s->cplus_txbuffer_offset = 0;
              
     /* XXX: instance number ? */
-    register_savevm("rtl8139", 0, 2, rtl8139_save, rtl8139_load, s);
-    register_savevm("rtl8139_pci", 0, 1, generic_pci_save, generic_pci_load, 
-                    &d->dev);
+    register_savevm("rtl8139", 0, 3, rtl8139_save, rtl8139_load, s);
 
 #if RTL8139_ONBOARD_TIMER
     s->timer = qemu_new_timer(vm_clock, rtl8139_timer, s);
-- 
2.7.4