Add --host-ip-addr parameter to allow changing the host-side IP address.
Signed-off-by: Sasha Levin <levinsasha928@xxxxxxxxx>
---
tools/kvm/include/kvm/virtio-net.h | 2 +-
tools/kvm/kvm-run.c | 9 ++++++++-
tools/kvm/virtio-net.c | 9 ++++-----
3 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/tools/kvm/include/kvm/virtio-net.h b/tools/kvm/include/kvm/virtio-net.h
index a1cab15..03eb623 100644
--- a/tools/kvm/include/kvm/virtio-net.h
+++ b/tools/kvm/include/kvm/virtio-net.h
@@ -2,6 +2,6 @@
#define KVM__VIRTIO_NET_H
struct kvm;
-void virtio_net__init(struct kvm *self);
+void virtio_net__init(struct kvm *self, const char* host_ip_addr);
#endif /* KVM__VIRTIO_NET_H */
diff --git a/tools/kvm/kvm-run.c b/tools/kvm/kvm-run.c
index 6046a0a..910a8d8 100644
--- a/tools/kvm/kvm-run.c
+++ b/tools/kvm/kvm-run.c
@@ -31,6 +31,7 @@
#define DEFAULT_KVM_DEV "/dev/kvm"
#define DEFAULT_CONSOLE "serial"
#define DEFAULT_NETWORK "none"
+#define DEFAULT_HOST_ADDR "192.168.33.2"
#define MB_SHIFT (20)
#define MIN_RAM_SIZE_MB (64ULL)
@@ -66,6 +67,7 @@ static const char *image_filename;
static const char *console;
static const char *kvm_dev;
static const char *network;
+static const char *host_ip_addr;
static bool single_step;
static bool readonly_image;
extern bool ioport_debug;
@@ -89,6 +91,8 @@ static const struct option options[] = {
"Console to use"),
OPT_STRING('n', "network", &network, "virtio",
"Network to use"),
+ OPT_STRING('\0', "host-ip-addr", &host_ip_addr, "a.b.c.d",
+ "Assign this address to the host side networking"),
OPT_GROUP("Kernel options:"),
OPT_STRING('k', "kernel", &kernel_filename, "kernel",
@@ -218,6 +222,9 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix)
else
active_console = CONSOLE_8250;
+ if (!host_ip_addr)
+ host_ip_addr = DEFAULT_HOST_ADDR;
+
term_init();
kvm = kvm__init(kvm_dev, ram_size);
@@ -259,7 +266,7 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix)
network = DEFAULT_NETWORK;
if (!strncmp(network, "virtio", 6))
- virtio_net__init(kvm);
+ virtio_net__init(kvm, host_ip_addr);
kvm__start_timer(kvm);
diff --git a/tools/kvm/virtio-net.c b/tools/kvm/virtio-net.c
index 5f9bf07..ec65779 100644
--- a/tools/kvm/virtio-net.c
+++ b/tools/kvm/virtio-net.c
@@ -276,7 +276,7 @@ static struct pci_device_header virtio_net_pci_device = {
.irq_line = VIRTIO_NET_IRQ,
};
-static void virtio_net__tap_init(void)
+static void virtio_net__tap_init(const char *host_ip_addr)
{
struct ifreq ifr;
int sock = socket(AF_INET, SOCK_STREAM, 0);
@@ -298,8 +298,7 @@ static void virtio_net__tap_init(void)
strncpy(ifr.ifr_name, net_device.tap_name, sizeof(net_device.tap_name));
- /*FIXME: Remove this after user can specify ip address and netmask*/
- ((struct sockaddr_in *)(&(ifr.ifr_addr)))->sin_addr.s_addr = inet_addr("192.168.33.2");
+ ((struct sockaddr_in *)(&(ifr.ifr_addr)))->sin_addr.s_addr = inet_addr(host_ip_addr);
ifr.ifr_addr.sa_family = AF_INET;
if (ioctl(sock, SIOCSIFADDR, &ifr) < 0)
@@ -327,11 +326,11 @@ static void virtio_net__io_thread_init(struct kvm *self)
pthread_create(&net_device.io_tx_thread, NULL, virtio_net_tx_thread, (void *)self);
}
-void virtio_net__init(struct kvm *self)
+void virtio_net__init(struct kvm *self, const char* host_ip_addr)
{
pci__register(&virtio_net_pci_device, PCI_VIRTIO_NET_DEVNUM);
ioport__register(IOPORT_VIRTIO_NET, &virtio_net_io_ops, IOPORT_VIRTIO_NET_SIZE);
- virtio_net__tap_init();
+ virtio_net__tap_init(host_ip_addr);
virtio_net__io_thread_init(self);
}
--
1.7.5.rc1
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