At 02/24/2011 10:40 PM, William Dauchy Write:
> Hi,
>
> I got some troubles hot plugging network pci devices. An attach works
> as expected but the mac address is still set to "00:00:00:00:00:00" on
> the guest machine. I have to reboot the guest to get the correct mac
> address.
> I first tried through libvirt with:
> # virsh attach-interface dom0 network default --mac 52:54:00:f6:84:ba
>
> and then through qemu monitor to make sure that it wasn't a libvirt issue:
> device_add rtl8139
> or
> device_add rtl8139,mac=01:02:03:04:05:06
>
> Always the same result on the guest. A device info on qemu give the
> correct result, that is to say, with a correct mac address.
> I went through rtl8139.c and saw that the mac address is set in
> `rtl8139_reset`.
> This function was called in `pci_rtl8139_init` but removed since
> c169998802505c244b8bcad562633f29de7d74a4 commit, because it doesn't
> make sense to call it when the virtual machine is shutdown.
> I'm now wondering where I am supposed to call this reset function when
> live attaching a pci device. I think it could fix the mac address
> issue.
> I will be very pleased to receive some tips to create a patch for this issue.
Please try the following patch.
Thanks
Wen Congyang
>From efa0632f563a69dc299daaf4b235c1a0521d6e02 Mon Sep 17 00:00:00 2001
From: Wen Congyang <we...@cn.fujitsu.com>
Date: Fri, 25 Feb 2011 09:56:27 +0800
Subject: [PATCH] move eeprom init from reset function to init function
---
hw/pcnet-pci.c | 12 ++++++++++++
hw/pcnet.c | 13 -------------
hw/rtl8139.c | 24 ++++++++++++------------
3 files changed, 24 insertions(+), 25 deletions(-)
diff --git a/hw/pcnet-pci.c b/hw/pcnet-pci.c
index 339a401..d7c4fc3 100644
--- a/hw/pcnet-pci.c
+++ b/hw/pcnet-pci.c
@@ -270,6 +270,8 @@ static int pci_pcnet_init(PCIDevice *pci_dev)
PCIPCNetState *d = DO_UPCAST(PCIPCNetState, pci_dev, pci_dev);
PCNetState *s = &d->state;
uint8_t *pci_conf;
+ int i;
+ uint16_t checksum;
#if 0
printf("sizeof(RMD)=%d, sizeof(TMD)=%d\n",
@@ -292,6 +294,16 @@ static int pci_pcnet_init(PCIDevice *pci_dev)
pci_conf[PCI_MIN_GNT] = 0x06;
pci_conf[PCI_MAX_LAT] = 0xff;
+ /* Initialize the PROM */
+
+ memcpy(s->prom, s->conf.macaddr.a, 6);
+ s->prom[12] = s->prom[13] = 0x00;
+ s->prom[14] = s->prom[15] = 0x57;
+
+ for (i = 0,checksum = 0; i < 16; i++)
+ checksum += s->prom[i];
+ *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
+
/* Handler for memory-mapped I/O */
s->mmio_index =
cpu_register_io_memory(pcnet_mmio_read, pcnet_mmio_write, &d->state,
diff --git a/hw/pcnet.c b/hw/pcnet.c
index db52dc5..283828a 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -1557,19 +1557,6 @@ uint32_t pcnet_bcr_readw(PCNetState *s, uint32_t rap)
void pcnet_h_reset(void *opaque)
{
PCNetState *s = opaque;
- int i;
- uint16_t checksum;
-
- /* Initialize the PROM */
-
- memcpy(s->prom, s->conf.macaddr.a, 6);
- s->prom[12] = s->prom[13] = 0x00;
- s->prom[14] = s->prom[15] = 0x57;
-
- for (i = 0,checksum = 0; i < 16; i++)
- checksum += s->prom[i];
- *(uint16_t *)&s->prom[12] = cpu_to_le16(checksum);
-
s->bcr[BCR_MSRDA] = 0x0005;
s->bcr[BCR_MSWRA] = 0x0005;
diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index a22530c..580c83e 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -1189,18 +1189,6 @@ static void rtl8139_reset(DeviceState *d)
rtl8139_update_irq(s);
- /* prepare eeprom */
- s->eeprom.contents[0] = 0x8129;
-#if 1
- // PCI vendor and device ID should be mirrored here
- s->eeprom.contents[1] = PCI_VENDOR_ID_REALTEK;
- s->eeprom.contents[2] = PCI_DEVICE_ID_REALTEK_8139;
-#endif
-
- s->eeprom.contents[7] = s->conf.macaddr.a[0] | s->conf.macaddr.a[1] << 8;
- s->eeprom.contents[8] = s->conf.macaddr.a[2] | s->conf.macaddr.a[3] << 8;
- s->eeprom.contents[9] = s->conf.macaddr.a[4] | s->conf.macaddr.a[5] << 8;
-
/* mark all status registers as owned by host */
for (i = 0; i < 4; ++i)
{
@@ -3392,6 +3380,18 @@ static int pci_rtl8139_init(PCIDevice *dev)
qemu_macaddr_default_if_unset(&s->conf.macaddr);
+ /* prepare eeprom */
+ s->eeprom.contents[0] = 0x8129;
+#if 1
+ // PCI vendor and device ID should be mirrored here
+ s->eeprom.contents[1] = PCI_VENDOR_ID_REALTEK;
+ s->eeprom.contents[2] = PCI_DEVICE_ID_REALTEK_8139;
+#endif
+
+ s->eeprom.contents[7] = s->conf.macaddr.a[0] | s->conf.macaddr.a[1] << 8;
+ s->eeprom.contents[8] = s->conf.macaddr.a[2] | s->conf.macaddr.a[3] << 8;
+ s->eeprom.contents[9] = s->conf.macaddr.a[4] | s->conf.macaddr.a[5] << 8;
+
s->nic = qemu_new_nic(&net_rtl8139_info, &s->conf,
dev->qdev.info->name, dev->qdev.id, s);
qemu_format_nic_info_str(&s->nic->nc, s->conf.macaddr.a);
--
1.7.1
>
> Regards,
