Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into staging

# -----BEGIN PGP SIGNATURE-----
# Version: GnuPG v1
#
# iQEcBAABAgAGBQJlXF+GAAoJEO8Ells5jWIROT0H/RGk64ds4eiKskWxwG9p8K8s
# wCLdgadf/PRnKmMLR3i5gMX87Db83nUtX/tEgoNxSGuvTdK/JRuqf2oMLv5AOF27
# 6573reJW1z0Ho9Se5JW+DPI18hX7YzqwyJQ9QslGOSRXJb20O4iC2rICfI8MeFsW
# tBTsBcJ4qwsVK4nqY/3Tz57lhZLF2xYZtdgvxS4urqg/PrcbAMq8SSB8cq7tjUUs
# sgDMQQx4n/r8wlBJE1nnvF/NxtLyTj/rrS9J1rF7ztp/suea/vHxM3t9vTqjLSlY
# TyFORcfSCK2edp2+QwARJTTU9FlnuSwf28Pnm2lMQjp5HjBO20bpCBIWGQl6C9A=
# =T88Y
# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 21 Nov 2023 02:43:02 EST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [full]
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* tag 'net-pull-request' of https://github.com/jasowang/qemu:
  net: do not delete nics in net_cleanup()
  net: Update MemReentrancyGuard for NIC
  net: Provide MemReentrancyGuard * to qemu_new_nic()

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --git a/hw/net/allwinner-sun8i-emac.c b/hw/net/allwinner-sun8i-emac.c
index fac4405f452d5bb66814ffedf67173b1f892b4ac..cc350d40e59fad00e26fe3a8b58d3f1352645c79 100644 (file)
--- a/hw/net/allwinner-sun8i-emac.c
+++ b/hw/net/allwinner-sun8i-emac.c
@@ -824,7 +824,8 @@ static void allwinner_sun8i_emac_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_allwinner_sun8i_emac_info, &s->conf,
-                           object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/net/allwinner_emac.c b/hw/net/allwinner_emac.c
index 372e5b66dabc77298e5e9a5986bb388f8f80d077..e10965de14005aa7ab5e38b3cd728a3efb78b415 100644 (file)
--- a/hw/net/allwinner_emac.c
+++ b/hw/net/allwinner_emac.c
@@ -453,7 +453,8 @@ static void aw_emac_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_aw_emac_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     fifo8_create(&s->rx_fifo, RX_FIFO_SIZE);

diff --git a/hw/net/cadence_gem.c b/hw/net/cadence_gem.c
index 19adbc0e19c864bbfe6cd10b245e8b9af9cbd96d..296bba238ec963640c0bdc10d18f03d50e39f9a5 100644 (file)
--- a/hw/net/cadence_gem.c
+++ b/hw/net/cadence_gem.c
@@ -1743,7 +1743,8 @@ static void gem_realize(DeviceState *dev, Error **errp)
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
 
     s->nic = qemu_new_nic(&net_gem_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
 
     if (s->jumbo_max_len > MAX_FRAME_SIZE) {
         error_setg(errp, "jumbo-max-len is greater than %d",

diff --git a/hw/net/dp8393x.c b/hw/net/dp8393x.c
index c6f5fb7dceb1ee06482303d052a18740e0bf280e..b16b18b3c3cbaf6c1f902fd311db179587deb67d 100644 (file)
--- a/hw/net/dp8393x.c
+++ b/hw/net/dp8393x.c
@@ -913,7 +913,8 @@ static void dp8393x_realize(DeviceState *dev, Error **errp)
                           "dp8393x-regs", SONIC_REG_COUNT << s->it_shift);
 
     s->nic = qemu_new_nic(&net_dp83932_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     s->watchdog = timer_new_ns(QEMU_CLOCK_VIRTUAL, dp8393x_watchdog, s);

diff --git a/hw/net/e1000.c b/hw/net/e1000.c
index 548bcabcbba2d9847eb52f5d75534decb47fe4e5..8ffe1077f1961b8293ed15423774b23f700f970c 100644 (file)
--- a/hw/net/e1000.c
+++ b/hw/net/e1000.c
@@ -1666,7 +1666,8 @@ static void pci_e1000_realize(PCIDevice *pci_dev, Error **errp)
                                macaddr);
 
     d->nic = qemu_new_nic(&net_e1000_info, &d->conf,
-                          object_get_typename(OBJECT(d)), dev->id, d);
+                          object_get_typename(OBJECT(d)), dev->id,
+                          &dev->mem_reentrancy_guard, d);
 
     qemu_format_nic_info_str(qemu_get_queue(d->nic), macaddr);
 

diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c
index c3848797b8fc6d6e475a5a224ab6a042bf4e8e0f..e41a6c10385db0665b07f5e18d604ac8b853b0da 100644 (file)
--- a/hw/net/e1000e.c
+++ b/hw/net/e1000e.c
@@ -320,7 +320,7 @@ e1000e_init_net_peer(E1000EState *s, PCIDevice *pci_dev, uint8_t *macaddr)
     int i;
 
     s->nic = qemu_new_nic(&net_e1000e_info, &s->conf,
-        object_get_typename(OBJECT(s)), dev->id, s);
+        object_get_typename(OBJECT(s)), dev->id, &dev->mem_reentrancy_guard, s);
 
     s->core.max_queue_num = s->conf.peers.queues ? s->conf.peers.queues - 1 : 0;
 

diff --git a/hw/net/eepro100.c b/hw/net/eepro100.c
index 94ce9e18ffbf59578678fe25d099a555b97f136b..69e1c4bb8918fa506cf9f420edb257a0f5424127 100644 (file)
--- a/hw/net/eepro100.c
+++ b/hw/net/eepro100.c
@@ -1874,7 +1874,9 @@ static void e100_nic_realize(PCIDevice *pci_dev, Error **errp)
     nic_reset(s);
 
     s->nic = qemu_new_nic(&net_eepro100_info, &s->conf,
-                          object_get_typename(OBJECT(pci_dev)), pci_dev->qdev.id, s);
+                          object_get_typename(OBJECT(pci_dev)),
+                          pci_dev->qdev.id,
+                          &pci_dev->qdev.mem_reentrancy_guard, s);
 
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
     TRACE(OTHER, logout("%s\n", qemu_get_queue(s->nic)->info_str));

diff --git a/hw/net/etraxfs_eth.c b/hw/net/etraxfs_eth.c
index 1b82aec7943d26b7850acf39f50eec3104bb78e1..ba57a978d15767a7c39bf2eea475df3642ee9a34 100644 (file)
--- a/hw/net/etraxfs_eth.c
+++ b/hw/net/etraxfs_eth.c
@@ -618,7 +618,8 @@ static void etraxfs_eth_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_etraxfs_info, &s->conf,
-                          object_get_typename(OBJECT(s)), dev->id, s);
+                          object_get_typename(OBJECT(s)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     s->phy.read = tdk_read;

diff --git a/hw/net/fsl_etsec/etsec.c b/hw/net/fsl_etsec/etsec.c
index 798ea33d08010cc70e5d98267d4bdf6d56287777..00315f305d854c8fcd81777e1de4f24e51d9b612 100644 (file)
--- a/hw/net/fsl_etsec/etsec.c
+++ b/hw/net/fsl_etsec/etsec.c
@@ -391,7 +391,8 @@ static void etsec_realize(DeviceState *dev, Error **errp)
     eTSEC        *etsec = ETSEC_COMMON(dev);
 
     etsec->nic = qemu_new_nic(&net_etsec_info, &etsec->conf,
-                              object_get_typename(OBJECT(dev)), dev->id, etsec);
+                              object_get_typename(OBJECT(dev)), dev->id,
+                              &dev->mem_reentrancy_guard, etsec);
     qemu_format_nic_info_str(qemu_get_queue(etsec->nic), etsec->conf.macaddr.a);
 
     etsec->ptimer = ptimer_init(etsec_timer_hit, etsec, PTIMER_POLICY_LEGACY);

diff --git a/hw/net/ftgmac100.c b/hw/net/ftgmac100.c
index 702b001be2ff0c6148f377d0433e15c4f61693c2..78e594afa4e739f3accbbf1ecd419ed98e539373 100644 (file)
--- a/hw/net/ftgmac100.c
+++ b/hw/net/ftgmac100.c
@@ -1110,7 +1110,8 @@ static void ftgmac100_realize(DeviceState *dev, Error **errp)
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
 
     s->nic = qemu_new_nic(&net_ftgmac100_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/net/i82596.c b/hw/net/i82596.c
index 6defa9d3a1290d932043073e90c258808e53f2cb..a907f0df8c442f8335db667b7553f404ac625bd0 100644 (file)
--- a/hw/net/i82596.c
+++ b/hw/net/i82596.c
@@ -726,7 +726,7 @@ void i82596_common_init(DeviceState *dev, I82596State *s, NetClientInfo *info)
         qemu_macaddr_default_if_unset(&s->conf.macaddr);
     }
     s->nic = qemu_new_nic(info, &s->conf, object_get_typename(OBJECT(dev)),
-                dev->id, s);
+                dev->id, &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     if (USE_TIMER) {

diff --git a/hw/net/igb.c b/hw/net/igb.c
index dfb722b69599e2ad446c6a02a32760d50737cf83..8089acfea4148c64e98986758f51143b7cb5f106 100644 (file)
--- a/hw/net/igb.c
+++ b/hw/net/igb.c
@@ -325,7 +325,7 @@ igb_init_net_peer(IGBState *s, PCIDevice *pci_dev, uint8_t *macaddr)
     int i;
 
     s->nic = qemu_new_nic(&net_igb_info, &s->conf,
-        object_get_typename(OBJECT(s)), dev->id, s);
+        object_get_typename(OBJECT(s)), dev->id, &dev->mem_reentrancy_guard, s);
 
     s->core.max_queue_num = s->conf.peers.queues ? s->conf.peers.queues - 1 : 0;
 

diff --git a/hw/net/imx_fec.c b/hw/net/imx_fec.c
index 5d1f1f104cc473d8322a96226b0ae3a1c5f2efc2..6881e3e4f05f7648d97add6997455491fdef3c87 100644 (file)
--- a/hw/net/imx_fec.c
+++ b/hw/net/imx_fec.c
@@ -1334,7 +1334,7 @@ static void imx_eth_realize(DeviceState *dev, Error **errp)
 
     s->nic = qemu_new_nic(&imx_eth_net_info, &s->conf,
                           object_get_typename(OBJECT(dev)),
-                          dev->id, s);
+                          dev->id, &dev->mem_reentrancy_guard, s);
 
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }

diff --git a/hw/net/lan9118.c b/hw/net/lan9118.c
index e5c4af182dfa79e8396aab33e4ecfa9414d513ec..cf7b8c897a07f4c2593f534a7d75fbd34a5f0e09 100644 (file)
--- a/hw/net/lan9118.c
+++ b/hw/net/lan9118.c
@@ -1361,7 +1361,8 @@ static void lan9118_realize(DeviceState *dev, Error **errp)
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
 
     s->nic = qemu_new_nic(&net_lan9118_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
     s->eeprom[0] = 0xa5;
     for (i = 0; i < 6; i++) {

diff --git a/hw/net/mcf_fec.c b/hw/net/mcf_fec.c
index ec3ddf520a744d1888e278700a7f21504a4d0d0d..e6902716bd2bcc2dfb32f66702bb6cb87db6d498 100644 (file)
--- a/hw/net/mcf_fec.c
+++ b/hw/net/mcf_fec.c
@@ -643,7 +643,8 @@ static void mcf_fec_realize(DeviceState *dev, Error **errp)
     mcf_fec_state *s = MCF_FEC_NET(dev);
 
     s->nic = qemu_new_nic(&net_mcf_fec_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/net/mipsnet.c b/hw/net/mipsnet.c
index 2ade72dea081f5895056591587bd0e9e3ed06729..8e925de867c2aba1fba9bc6b23cca9247ea55a6b 100644 (file)
--- a/hw/net/mipsnet.c
+++ b/hw/net/mipsnet.c
@@ -255,7 +255,8 @@ static void mipsnet_realize(DeviceState *dev, Error **errp)
     sysbus_init_irq(sbd, &s->irq);
 
     s->nic = qemu_new_nic(&net_mipsnet_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/net/msf2-emac.c b/hw/net/msf2-emac.c
index db3a04deb19d2a2259f0f330b167b708e5dfc7e7..145a5e46ab446c166ad05abc1e7e756708235d52 100644 (file)
--- a/hw/net/msf2-emac.c
+++ b/hw/net/msf2-emac.c
@@ -530,7 +530,8 @@ static void msf2_emac_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_msf2_emac_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/net/mv88w8618_eth.c b/hw/net/mv88w8618_eth.c
index ef30b0d4a6ac68ed5588bf5603f4262eb6c2d905..2185f1131a94a8c7f4bad94f1310f1b6e019166c 100644 (file)
--- a/hw/net/mv88w8618_eth.c
+++ b/hw/net/mv88w8618_eth.c
@@ -350,7 +350,8 @@ static void mv88w8618_eth_realize(DeviceState *dev, Error **errp)
 
     address_space_init(&s->dma_as, s->dma_mr, "emac-dma");
     s->nic = qemu_new_nic(&net_mv88w8618_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
 }
 
 static const VMStateDescription mv88w8618_eth_vmsd = {

diff --git a/hw/net/ne2000-isa.c b/hw/net/ne2000-isa.c
index 6ced6775ffd0d5af01cbcadaed008d158fb98364..a79f7fad1f1c4c383795420444caa6ce49443ffe 100644 (file)
--- a/hw/net/ne2000-isa.c
+++ b/hw/net/ne2000-isa.c
@@ -74,7 +74,8 @@ static void isa_ne2000_realizefn(DeviceState *dev, Error **errp)
     ne2000_reset(s);
 
     s->nic = qemu_new_nic(&net_ne2000_isa_info, &s->c,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
 }
 

diff --git a/hw/net/ne2000-pci.c b/hw/net/ne2000-pci.c
index edc6689d33eaaac708ad93a6203ba6ce62aeaa91..fee93c6ec0d9fdde87b90020383fdddd7fbc1b1e 100644 (file)
--- a/hw/net/ne2000-pci.c
+++ b/hw/net/ne2000-pci.c
@@ -71,7 +71,8 @@ static void pci_ne2000_realize(PCIDevice *pci_dev, Error **errp)
 
     s->nic = qemu_new_nic(&net_ne2000_info, &s->c,
                           object_get_typename(OBJECT(pci_dev)),
-                          pci_dev->qdev.id, s);
+                          pci_dev->qdev.id,
+                          &pci_dev->qdev.mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
 }
 

diff --git a/hw/net/npcm7xx_emc.c b/hw/net/npcm7xx_emc.c
index 8156f701b07d4919ed32affe1df755e0ae29caf9..1d4e8f59f35ec38f888d9407a2ca1780e987037d 100644 (file)
--- a/hw/net/npcm7xx_emc.c
+++ b/hw/net/npcm7xx_emc.c
@@ -821,7 +821,8 @@ static void npcm7xx_emc_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&emc->conf.macaddr);
     emc->nic = qemu_new_nic(&net_npcm7xx_emc_info, &emc->conf,
-                            object_get_typename(OBJECT(dev)), dev->id, emc);
+                            object_get_typename(OBJECT(dev)), dev->id,
+                            &dev->mem_reentrancy_guard, emc);
     qemu_format_nic_info_str(qemu_get_queue(emc->nic), emc->conf.macaddr.a);
 }
 

diff --git a/hw/net/opencores_eth.c b/hw/net/opencores_eth.c
index 0b3dc3146e61f73056ff29ce8964f77cba0950a1..f96d6ea2ccfe6b0f8d200ca9f3fe7c90577081b9 100644 (file)
--- a/hw/net/opencores_eth.c
+++ b/hw/net/opencores_eth.c
@@ -732,7 +732,8 @@ static void sysbus_open_eth_realize(DeviceState *dev, Error **errp)
     sysbus_init_irq(sbd, &s->irq);
 
     s->nic = qemu_new_nic(&net_open_eth_info, &s->conf,
-                          object_get_typename(OBJECT(s)), dev->id, s);
+                          object_get_typename(OBJECT(s)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
 }
 
 static void qdev_open_eth_reset(DeviceState *dev)

diff --git a/hw/net/pcnet.c b/hw/net/pcnet.c
index 02828ae71650cb049322e002ccc831c1814ba29e..a7e123e60dbab97ebfafabb05fbbb99576af9cc9 100644 (file)
--- a/hw/net/pcnet.c
+++ b/hw/net/pcnet.c
@@ -1709,7 +1709,8 @@ void pcnet_common_init(DeviceState *dev, PCNetState *s, NetClientInfo *info)
     s->poll_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, pcnet_poll_timer, s);
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
-    s->nic = qemu_new_nic(info, &s->conf, object_get_typename(OBJECT(dev)), dev->id, s);
+    s->nic = qemu_new_nic(info, &s->conf, object_get_typename(OBJECT(dev)),
+                          dev->id, &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     /* Initialize the PROM */

diff --git a/hw/net/rocker/rocker_fp.c b/hw/net/rocker/rocker_fp.c
index 9afd0c5e3f91d84c4b73ea3aa615a49f867f4373..cb87ff752adf49e9c7457283a4df9a39fe866926 100644 (file)
--- a/hw/net/rocker/rocker_fp.c
+++ b/hw/net/rocker/rocker_fp.c
@@ -241,8 +241,8 @@ FpPort *fp_port_alloc(Rocker *r, char *sw_name,
     port->conf.bootindex = -1;
     port->conf.peers = *peers;
 
-    port->nic = qemu_new_nic(&fp_port_info, &port->conf,
-                             sw_name, NULL, port);
+    port->nic = qemu_new_nic(&fp_port_info, &port->conf, sw_name, NULL,
+                             &DEVICE(r)->mem_reentrancy_guard, port);
     qemu_format_nic_info_str(qemu_get_queue(port->nic),
                              port->conf.macaddr.a);
 

diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index 4525fda38375f89d816d8ea84eb189118e1a91e5..4af8c66266b4c1ff6410dd1f6c7517974ee50b59 100644 (file)
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -3388,7 +3388,8 @@ static void pci_rtl8139_realize(PCIDevice *dev, Error **errp)
     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,
-                          object_get_typename(OBJECT(dev)), d->id, s);
+                          object_get_typename(OBJECT(dev)), d->id,
+                          &d->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     s->cplus_txbuffer = NULL;

diff --git a/hw/net/smc91c111.c b/hw/net/smc91c111.c
index ddbceda967a4cb0a97d21c72e07af20f69c749fa..876a78456ac141e699f08fd3c3590147dfe6fb4a 100644 (file)
--- a/hw/net/smc91c111.c
+++ b/hw/net/smc91c111.c
@@ -783,7 +783,8 @@ static void smc91c111_realize(DeviceState *dev, Error **errp)
     sysbus_init_irq(sbd, &s->irq);
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_smc91c111_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
     /* ??? Save/restore.  */
 }

diff --git a/hw/net/spapr_llan.c b/hw/net/spapr_llan.c
index a6876a936db5551b864364900c427be3d6144b33..475d5f3a348d0c6f35d6d36f12be7e3caa06f9fd 100644 (file)
--- a/hw/net/spapr_llan.c
+++ b/hw/net/spapr_llan.c
@@ -325,7 +325,8 @@ static void spapr_vlan_realize(SpaprVioDevice *sdev, Error **errp)
     memcpy(&dev->perm_mac.a, &dev->nicconf.macaddr.a, sizeof(dev->perm_mac.a));
 
     dev->nic = qemu_new_nic(&net_spapr_vlan_info, &dev->nicconf,
-                            object_get_typename(OBJECT(sdev)), sdev->qdev.id, dev);
+                            object_get_typename(OBJECT(sdev)), sdev->qdev.id,
+                            &sdev->qdev.mem_reentrancy_guard, dev);
     qemu_format_nic_info_str(qemu_get_queue(dev->nic), dev->nicconf.macaddr.a);
 
     dev->rxp_timer = timer_new_us(QEMU_CLOCK_VIRTUAL, spapr_vlan_flush_rx_queue,

diff --git a/hw/net/stellaris_enet.c b/hw/net/stellaris_enet.c
index 8dd60783d81ddcada047227034a8ffc6972ae9cf..6768a6912f02836a97ce0a17134f73ddeb74947b 100644 (file)
--- a/hw/net/stellaris_enet.c
+++ b/hw/net/stellaris_enet.c
@@ -492,7 +492,8 @@ static void stellaris_enet_realize(DeviceState *dev, Error **errp)
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
 
     s->nic = qemu_new_nic(&net_stellaris_enet_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/net/sungem.c b/hw/net/sungem.c
index c2e2c90668f6dc6f47801131d71774730598ac74..013cfc273610d9f5015c33134c2fe74d9fd7b607 100644 (file)
--- a/hw/net/sungem.c
+++ b/hw/net/sungem.c
@@ -1399,7 +1399,7 @@ static void sungem_realize(PCIDevice *pci_dev, Error **errp)
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_sungem_info, &s->conf,
                           object_get_typename(OBJECT(dev)),
-                          dev->id, s);
+                          dev->id, &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic),
                              s->conf.macaddr.a);
 }

diff --git a/hw/net/sunhme.c b/hw/net/sunhme.c
index 64d4ea5850ea8d87ff416e446fac9c0f4a53b5a5..ddc83a64bd184534ac7035c808c96217eac29ba4 100644 (file)
--- a/hw/net/sunhme.c
+++ b/hw/net/sunhme.c
@@ -881,7 +881,8 @@ static void sunhme_realize(PCIDevice *pci_dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_sunhme_info, &s->conf,
-                          object_get_typename(OBJECT(d)), d->id, s);
+                          object_get_typename(OBJECT(d)), d->id,
+                          &d->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/net/tulip.c b/hw/net/tulip.c
index 11d866e43190c29211e129934b43b9ec51de9165..962086aae4a562ca640e6f01b37dd5b6c275a695 100644 (file)
--- a/hw/net/tulip.c
+++ b/hw/net/tulip.c
@@ -983,7 +983,8 @@ static void pci_tulip_realize(PCIDevice *pci_dev, Error **errp)
 
     s->nic = qemu_new_nic(&net_tulip_info, &s->c,
                           object_get_typename(OBJECT(pci_dev)),
-                          pci_dev->qdev.id, s);
+                          pci_dev->qdev.id,
+                          &pci_dev->qdev.mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->c.macaddr.a);
 }
 

diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index b85c7946a7d9375b676ed19c3b8e5a593babc7f5..80c56f0cfcf1675a1d1815489d0cfb94b525736e 100644 (file)
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -3714,10 +3714,12 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
          * Happen when virtio_net_set_netclient_name has been called.
          */
         n->nic = qemu_new_nic(&net_virtio_info, &n->nic_conf,
-                              n->netclient_type, n->netclient_name, n);
+                              n->netclient_type, n->netclient_name,
+                              &dev->mem_reentrancy_guard, n);
     } else {
         n->nic = qemu_new_nic(&net_virtio_info, &n->nic_conf,
-                              object_get_typename(OBJECT(dev)), dev->id, n);
+                              object_get_typename(OBJECT(dev)), dev->id,
+                              &dev->mem_reentrancy_guard, n);
     }
 
     for (i = 0; i < n->max_queue_pairs; i++) {

diff --git a/hw/net/vmxnet3.c b/hw/net/vmxnet3.c
index 1b48d7743e861b07c1677a7881468416f18e6c9d..6fb4102d033015eab4094ec4aef5025334acaeec 100644 (file)
--- a/hw/net/vmxnet3.c
+++ b/hw/net/vmxnet3.c
@@ -2078,7 +2078,7 @@ static void vmxnet3_net_init(VMXNET3State *s)
 
     s->nic = qemu_new_nic(&net_vmxnet3_info, &s->conf,
                           object_get_typename(OBJECT(s)),
-                          d->id, s);
+                          d->id, &d->mem_reentrancy_guard, s);
 
     s->peer_has_vhdr = vmxnet3_peer_has_vnet_hdr(s);
     s->tx_sop = true;

diff --git a/hw/net/xen_nic.c b/hw/net/xen_nic.c
index af4ba3f1e66c13190eb1d0bf44f9e91d7a3080c6..1e2b3baeb1a5143b21885d35d0fbf33a83a2cdf2 100644 (file)
--- a/hw/net/xen_nic.c
+++ b/hw/net/xen_nic.c
@@ -325,7 +325,8 @@ static void xen_netdev_realize(XenDevice *xendev, Error **errp)
 
     netdev->nic = qemu_new_nic(&net_xen_info, &netdev->conf,
                                object_get_typename(OBJECT(xendev)),
-                               DEVICE(xendev)->id, netdev);
+                               DEVICE(xendev)->id,
+                               &xendev->qdev.mem_reentrancy_guard, netdev);
 
     nc = qemu_get_queue(netdev->nic);
     qemu_format_nic_info_str(nc, netdev->conf.macaddr.a);

diff --git a/hw/net/xgmac.c b/hw/net/xgmac.c
index 0ab6ae91aa11b00c5675d263fc911782484e3632..1f4f277d840f826fb7b6c345e2cecc6aace6c82f 100644 (file)
--- a/hw/net/xgmac.c
+++ b/hw/net/xgmac.c
@@ -402,7 +402,8 @@ static void xgmac_enet_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_xgmac_enet_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     s->regs[XGMAC_ADDR_HIGH(0)] = (s->conf.macaddr.a[5] << 8) |

diff --git a/hw/net/xilinx_axienet.c b/hw/net/xilinx_axienet.c
index 5b19a01eaa2bfc89a354910ed3c9f36657886fe6..7d1fd37b4ac98cb9ad303e5c4a4363a2be4326b2 100644 (file)
--- a/hw/net/xilinx_axienet.c
+++ b/hw/net/xilinx_axienet.c
@@ -967,7 +967,8 @@ static void xilinx_enet_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_xilinx_enet_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 
     tdk_init(&s->TEMAC.phy);

diff --git a/hw/net/xilinx_ethlite.c b/hw/net/xilinx_ethlite.c
index 89f4f3b2540347a40784cbf252a5daf0e2f98bb7..989afaf037fa96e7f70968e064b9a635e8a3a135 100644 (file)
--- a/hw/net/xilinx_ethlite.c
+++ b/hw/net/xilinx_ethlite.c
@@ -235,7 +235,8 @@ static void xilinx_ethlite_realize(DeviceState *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_xilinx_ethlite_info, &s->conf,
-                          object_get_typename(OBJECT(dev)), dev->id, s);
+                          object_get_typename(OBJECT(dev)), dev->id,
+                          &dev->mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
 }
 

diff --git a/hw/usb/dev-network.c b/hw/usb/dev-network.c
index 5fff487ee5d25739c5c703823a4e356921e7ce79..2c33e36cad231237a934b73d0ddc9d3fdcd4df00 100644 (file)
--- a/hw/usb/dev-network.c
+++ b/hw/usb/dev-network.c
@@ -1386,7 +1386,8 @@ static void usb_net_realize(USBDevice *dev, Error **errp)
 
     qemu_macaddr_default_if_unset(&s->conf.macaddr);
     s->nic = qemu_new_nic(&net_usbnet_info, &s->conf,
-                          object_get_typename(OBJECT(s)), s->dev.qdev.id, s);
+                          object_get_typename(OBJECT(s)), s->dev.qdev.id,
+                          &s->dev.qdev.mem_reentrancy_guard, s);
     qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a);
     snprintf(s->usbstring_mac, sizeof(s->usbstring_mac),
              "%02x%02x%02x%02x%02x%02x",

diff --git a/include/net/net.h b/include/net/net.h
index 2fb1c9181ca52f4e35f45f5b233bd4b7aaf505ee..ffbd2c8d565e6832ac6b6ee96ca6e95667e4e581 100644 (file)
--- a/include/net/net.h
+++ b/include/net/net.h
@@ -126,6 +126,7 @@ typedef QTAILQ_HEAD(NetClientStateList, NetClientState) NetClientStateList;
 typedef struct NICState {
     NetClientState *ncs;
     NICConf *conf;
+    MemReentrancyGuard *reentrancy_guard;
     void *opaque;
     bool peer_deleted;
 } NICState;
@@ -159,6 +160,7 @@ NICState *qemu_new_nic(NetClientInfo *info,
                        NICConf *conf,
                        const char *model,
                        const char *name,
+                       MemReentrancyGuard *reentrancy_guard,
                        void *opaque);
 void qemu_del_nic(NICState *nic);
 NetClientState *qemu_get_subqueue(NICState *nic, int queue_index);

diff --git a/net/net.c b/net/net.c
index 8e67a20abc652ddc6ff33006f11c06d0b4b588f1..0520bc1681a469545cfb56160c70d513384f964b 100644 (file)
--- a/net/net.c
+++ b/net/net.c
@@ -319,6 +319,7 @@ NICState *qemu_new_nic(NetClientInfo *info,
                        NICConf *conf,
                        const char *model,
                        const char *name,
+                       MemReentrancyGuard *reentrancy_guard,
                        void *opaque)
 {
     NetClientState **peers = conf->peers.ncs;
@@ -331,6 +332,7 @@ NICState *qemu_new_nic(NetClientInfo *info,
     nic = g_malloc0(info->size + sizeof(NetClientState) * queues);
     nic->ncs = (void *)nic + info->size;
     nic->conf = conf;
+    nic->reentrancy_guard = reentrancy_guard,
     nic->opaque = opaque;
 
     for (i = 0; i < queues; i++) {
@@ -813,6 +815,7 @@ static ssize_t qemu_deliver_packet_iov(NetClientState *sender,
                                        int iovcnt,
                                        void *opaque)
 {
+    MemReentrancyGuard *owned_reentrancy_guard;
     NetClientState *nc = opaque;
     int ret;
 
@@ -825,12 +828,24 @@ static ssize_t qemu_deliver_packet_iov(NetClientState *sender,
         return 0;
     }
 
+    if (nc->info->type != NET_CLIENT_DRIVER_NIC ||
+        qemu_get_nic(nc)->reentrancy_guard->engaged_in_io) {
+        owned_reentrancy_guard = NULL;
+    } else {
+        owned_reentrancy_guard = qemu_get_nic(nc)->reentrancy_guard;
+        owned_reentrancy_guard->engaged_in_io = true;
+    }
+
     if (nc->info->receive_iov && !(flags & QEMU_NET_PACKET_FLAG_RAW)) {
         ret = nc->info->receive_iov(nc, iov, iovcnt);
     } else {
         ret = nc_sendv_compat(nc, iov, iovcnt, flags);
     }
 
+    if (owned_reentrancy_guard) {
+        owned_reentrancy_guard->engaged_in_io = false;
+    }
+
     if (ret == 0) {
         nc->receive_disabled = 1;
     }
@@ -1499,18 +1514,34 @@ static void net_vm_change_state_handler(void *opaque, bool running,
 
 void net_cleanup(void)
 {
-    NetClientState *nc;
+    NetClientState *nc, **p = &QTAILQ_FIRST(&net_clients);
 
     /*cleanup colo compare module for COLO*/
     colo_compare_cleanup();
 
-    /* We may del multiple entries during qemu_del_net_client(),
-     * so QTAILQ_FOREACH_SAFE() is also not safe here.
+    /*
+     * Walk the net_clients list and remove the netdevs but *not* any
+     * NET_CLIENT_DRIVER_NIC entries. The latter are owned by the device
+     * model which created them, and in some cases (e.g. xen-net-device)
+     * the device itself may do cleanup at exit and will be upset if we
+     * just delete its NIC from underneath it.
+     *
+     * Since qemu_del_net_client() may delete multiple entries, using
+     * QTAILQ_FOREACH_SAFE() is not safe here. The only safe pointer
+     * to keep as a bookmark is a NET_CLIENT_DRIVER_NIC entry, so keep
+     * 'p' pointing to either the head of the list, or the 'next' field
+     * of the latest NET_CLIENT_DRIVER_NIC, and operate on *p as we walk
+     * the list.
+     *
+     * The 'nc' variable isn't part of the list traversal; it's purely
+     * for convenience as too much '(*p)->' has a tendency to make the
+     * readers' eyes bleed.
      */
-    while (!QTAILQ_EMPTY(&net_clients)) {
-        nc = QTAILQ_FIRST(&net_clients);
+    while (*p) {
+        nc = *p;
         if (nc->info->type == NET_CLIENT_DRIVER_NIC) {
-            qemu_del_nic(qemu_get_nic(nc));
+            /* Skip NET_CLIENT_DRIVER_NIC entries */
+            p = &QTAILQ_NEXT(nc, next);
         } else {
             qemu_del_net_client(nc);
         }