diff mbox

kvm tools: PCI -- Make PCI device numbers being unique

Message ID 4DC6E111.805@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Cyrill Gorcunov May 8, 2011, 6:29 p.m. UTC
PCI device numbers must be unique on a bus (as a part
of Bus/Device/Function tuple). Make it so. Note the patch
is rather a fast fix since we need a bit more smart pci device
manager (in particular multiple virtio block devices most
probably should lay on a separate pci bus).

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
---
 tools/kvm/include/kvm/virtio-pci-dev.h |    5 +++++
 tools/kvm/virtio/blk.c                 |    2 +-
 tools/kvm/virtio/console.c             |    2 +-
 tools/kvm/virtio/net.c                 |    2 +-
 tools/kvm/virtio/rng.c                 |    2 +-
 5 files changed, 9 insertions(+), 4 deletions(-)

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Comments

Sasha Levin May 8, 2011, 6:48 p.m. UTC | #1
On Sun, 2011-05-08 at 22:29 +0400, Cyrill Gorcunov wrote:
> Index: linux-2.6.git/tools/kvm/virtio/rng.c
> =====================================================================
> --- linux-2.6.git.orig/tools/kvm/virtio/rng.c
> +++ linux-2.6.git/tools/kvm/virtio/rng.c
> @@ -178,5 +178,5 @@ void virtio_rng__init(struct kvm *kvm)
>  	virtio_rng_pci_device.irq_line	= line;
>  	pci__register(&virtio_rng_pci_device, dev);
> 
> -	ioport__register(IOPORT_VIRTIO_RNG, &virtio_rng_io_ops, IOPORT_VIRTIO_RNG_SIZE);
> +	ioport__register(PCI_DEVICE_VIRTIO_RNG, &virtio_rng_io_ops, IOPORT_VIRTIO_RNG_SIZE);
>  }

I think you wanted to change irq__register_device, not ioport__register
in virtio-rng.
Cyrill Gorcunov May 8, 2011, 6:54 p.m. UTC | #2
On 05/08/2011 10:48 PM, Sasha Levin wrote:
> On Sun, 2011-05-08 at 22:29 +0400, Cyrill Gorcunov wrote:
>> Index: linux-2.6.git/tools/kvm/virtio/rng.c
>> =====================================================================
>> --- linux-2.6.git.orig/tools/kvm/virtio/rng.c
>> +++ linux-2.6.git/tools/kvm/virtio/rng.c
>> @@ -178,5 +178,5 @@ void virtio_rng__init(struct kvm *kvm)
>>  	virtio_rng_pci_device.irq_line	= line;
>>  	pci__register(&virtio_rng_pci_device, dev);
>>
>> -	ioport__register(IOPORT_VIRTIO_RNG, &virtio_rng_io_ops, IOPORT_VIRTIO_RNG_SIZE);
>> +	ioport__register(PCI_DEVICE_VIRTIO_RNG, &virtio_rng_io_ops, IOPORT_VIRTIO_RNG_SIZE);
>>  }
> 
> I think you wanted to change irq__register_device, not ioport__register
> in virtio-rng.
> 

Good catch Sasha, thanks!
diff mbox

Patch

Index: linux-2.6.git/tools/kvm/include/kvm/virtio-pci-dev.h
=====================================================================
--- linux-2.6.git.orig/tools/kvm/include/kvm/virtio-pci-dev.h
+++ linux-2.6.git/tools/kvm/include/kvm/virtio-pci-dev.h
@@ -16,4 +16,9 @@ 
 #define PCI_SUBSYSTEM_ID_VIRTIO_CONSOLE		0x0003
 #define PCI_SUBSYSTEM_ID_VIRTIO_RNG		0x0004

+#define PCI_DEVICE_VIRTIO_NET			0x2
+#define PCI_DEVICE_VIRTIO_BLK			0x1
+#define PCI_DEVICE_VIRTIO_CONSOLE		0x3
+#define PCI_DEVICE_VIRTIO_RNG			0x4
+
 #endif /* VIRTIO_PCI_DEV_H_ */
Index: linux-2.6.git/tools/kvm/virtio/blk.c
=====================================================================
--- linux-2.6.git.orig/tools/kvm/virtio/blk.c
+++ linux-2.6.git/tools/kvm/virtio/blk.c
@@ -295,7 +295,7 @@  void virtio_blk__init(struct kvm *self,
 		},
 	};

-	if (irq__register_device(PCI_DEVICE_ID_VIRTIO_BLK, &dev, &pin, &line) < 0)
+	if (irq__register_device(PCI_DEVICE_VIRTIO_BLK, &dev, &pin, &line) < 0)
 		return;

 	bdev->pci_hdr.irq_pin	= pin;
Index: linux-2.6.git/tools/kvm/virtio/console.c
=====================================================================
--- linux-2.6.git.orig/tools/kvm/virtio/console.c
+++ linux-2.6.git/tools/kvm/virtio/console.c
@@ -238,7 +238,7 @@  void virtio_console__init(struct kvm *se
 {
 	u8 dev, line, pin;

-	if (irq__register_device(PCI_DEVICE_ID_VIRTIO_CONSOLE, &dev, &pin, &line) < 0)
+	if (irq__register_device(PCI_DEVICE_VIRTIO_CONSOLE, &dev, &pin, &line) < 0)
 		return;

 	virtio_console_pci_device.irq_pin	= pin;
Index: linux-2.6.git/tools/kvm/virtio/net.c
=====================================================================
--- linux-2.6.git.orig/tools/kvm/virtio/net.c
+++ linux-2.6.git/tools/kvm/virtio/net.c
@@ -385,7 +385,7 @@  void virtio_net__init(const struct virti
 	if (virtio_net__tap_init(params)) {
 		u8 dev, line, pin;

-		if (irq__register_device(PCI_DEVICE_ID_VIRTIO_NET, &dev, &pin, &line) < 0)
+		if (irq__register_device(PCI_DEVICE_VIRTIO_NET, &dev, &pin, &line) < 0)
 			return;

 		virtio_net_pci_device.irq_pin	= pin;
Index: linux-2.6.git/tools/kvm/virtio/rng.c
=====================================================================
--- linux-2.6.git.orig/tools/kvm/virtio/rng.c
+++ linux-2.6.git/tools/kvm/virtio/rng.c
@@ -178,5 +178,5 @@  void virtio_rng__init(struct kvm *kvm)
 	virtio_rng_pci_device.irq_line	= line;
 	pci__register(&virtio_rng_pci_device, dev);

-	ioport__register(IOPORT_VIRTIO_RNG, &virtio_rng_io_ops, IOPORT_VIRTIO_RNG_SIZE);
+	ioport__register(PCI_DEVICE_VIRTIO_RNG, &virtio_rng_io_ops, IOPORT_VIRTIO_RNG_SIZE);
 }