diff mbox

[RFC,12/16] kvm tools: allow arch to specify default virtio transport

Message ID 1352721450-11340-13-git-send-email-will.deacon@arm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Will Deacon Nov. 12, 2012, 11:57 a.m. UTC 
Some architectures may provide only a restricted PCI implementation and
therefore prefer MMIO as the transport for virtio devices.

This patch allows the arch backend to specify the default virtio
transport. Some devices (e.g. net) allow the transport to be overriden
by the user and are left alone by this change.

Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 tools/kvm/powerpc/include/kvm/kvm-arch.h |    2 ++
 tools/kvm/virtio/9p.c                    |    3 ++-
 tools/kvm/virtio/balloon.c               |    3 ++-
 tools/kvm/virtio/blk.c                   |    3 ++-
 tools/kvm/virtio/console.c               |    3 ++-
 tools/kvm/virtio/rng.c                   |    3 ++-
 tools/kvm/virtio/scsi.c                  |    3 ++-
 tools/kvm/x86/include/kvm/kvm-arch.h     |    2 ++
 8 files changed, 16 insertions(+), 6 deletions(-)
diff mbox

Patch

diff --git a/tools/kvm/powerpc/include/kvm/kvm-arch.h b/tools/kvm/powerpc/include/kvm/kvm-arch.h
index dd8a307..d93e142 100644
--- a/tools/kvm/powerpc/include/kvm/kvm-arch.h
+++ b/tools/kvm/powerpc/include/kvm/kvm-arch.h
@@ -40,6 +40,8 @@ 
 #define KVM_PCI_MMIO_AREA		0x1000000
 #define KVM_VIRTIO_MMIO_AREA		0x2000000
 
+#define VIRTIO_DEFAULT_TRANS	VIRTIO_PCI
+
 struct spapr_phb;
 
 struct kvm_arch {
diff --git a/tools/kvm/virtio/9p.c b/tools/kvm/virtio/9p.c
index a372c22..4665876 100644
--- a/tools/kvm/virtio/9p.c
+++ b/tools/kvm/virtio/9p.c
@@ -1390,7 +1390,8 @@  int virtio_9p__init(struct kvm *kvm)
 
 	list_for_each_entry(p9dev, &devs, list) {
 		virtio_init(kvm, p9dev, &p9dev->vdev, &p9_dev_virtio_ops,
-			    VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_9P, VIRTIO_ID_9P, PCI_CLASS_9P);
+			    VIRTIO_DEFAULT_TRANS, PCI_DEVICE_ID_VIRTIO_9P,
+			    VIRTIO_ID_9P, PCI_CLASS_9P);
 	}
 
 	return 0;
diff --git a/tools/kvm/virtio/balloon.c b/tools/kvm/virtio/balloon.c
index e08f628..3965b24 100644
--- a/tools/kvm/virtio/balloon.c
+++ b/tools/kvm/virtio/balloon.c
@@ -254,7 +254,8 @@  int virtio_bln__init(struct kvm *kvm)
 	memset(&bdev.config, 0, sizeof(struct virtio_balloon_config));
 
 	virtio_init(kvm, &bdev, &bdev.vdev, &bln_dev_virtio_ops,
-		    VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_BLN, VIRTIO_ID_BALLOON, PCI_CLASS_BLN);
+		    VIRTIO_DEFAULT_TRANS, PCI_DEVICE_ID_VIRTIO_BLN,
+		    VIRTIO_ID_BALLOON, PCI_CLASS_BLN);
 
 	if (compat_id == -1)
 		compat_id = virtio_compat_add_message("virtio-balloon", "CONFIG_VIRTIO_BALLOON");
diff --git a/tools/kvm/virtio/blk.c b/tools/kvm/virtio/blk.c
index 356a240..ec57e96 100644
--- a/tools/kvm/virtio/blk.c
+++ b/tools/kvm/virtio/blk.c
@@ -259,7 +259,8 @@  static int virtio_blk__init_one(struct kvm *kvm, struct disk_image *disk)
 	};
 
 	virtio_init(kvm, bdev, &bdev->vdev, &blk_dev_virtio_ops,
-		    VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_BLK, VIRTIO_ID_BLOCK, PCI_CLASS_BLK);
+		    VIRTIO_DEFAULT_TRANS, PCI_DEVICE_ID_VIRTIO_BLK,
+		    VIRTIO_ID_BLOCK, PCI_CLASS_BLK);
 
 	list_add_tail(&bdev->list, &bdevs);
 
diff --git a/tools/kvm/virtio/console.c b/tools/kvm/virtio/console.c
index ea5d974..74b6ffd 100644
--- a/tools/kvm/virtio/console.c
+++ b/tools/kvm/virtio/console.c
@@ -195,7 +195,8 @@  int virtio_console__init(struct kvm *kvm)
 		return 0;
 
 	virtio_init(kvm, &cdev, &cdev.vdev, &con_dev_virtio_ops,
-		    VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_CONSOLE, VIRTIO_ID_CONSOLE, PCI_CLASS_CONSOLE);
+		    VIRTIO_DEFAULT_TRANS, PCI_DEVICE_ID_VIRTIO_CONSOLE,
+		    VIRTIO_ID_CONSOLE, PCI_CLASS_CONSOLE);
 	if (compat_id == -1)
 		compat_id = virtio_compat_add_message("virtio-console", "CONFIG_VIRTIO_CONSOLE");
 
diff --git a/tools/kvm/virtio/rng.c b/tools/kvm/virtio/rng.c
index e1e4fc0..1a09fdf 100644
--- a/tools/kvm/virtio/rng.c
+++ b/tools/kvm/virtio/rng.c
@@ -168,7 +168,8 @@  int virtio_rng__init(struct kvm *kvm)
 	}
 
 	r = virtio_init(kvm, rdev, &rdev->vdev, &rng_dev_virtio_ops,
-			VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_RNG, VIRTIO_ID_RNG, PCI_CLASS_RNG);
+			VIRTIO_DEFAULT_TRANS, PCI_DEVICE_ID_VIRTIO_RNG,
+			VIRTIO_ID_RNG, PCI_CLASS_RNG);
 	if (r < 0)
 		goto cleanup;
 
diff --git a/tools/kvm/virtio/scsi.c b/tools/kvm/virtio/scsi.c
index 881898b..7ba76d0 100644
--- a/tools/kvm/virtio/scsi.c
+++ b/tools/kvm/virtio/scsi.c
@@ -251,7 +251,8 @@  static int virtio_scsi_init_one(struct kvm *kvm, struct disk_image *disk)
 	sdev->target.vhost_tpgt = strtol(disk->tpgt, NULL, 0);
 
 	virtio_init(kvm, sdev, &sdev->vdev, &scsi_dev_virtio_ops,
-		    VIRTIO_PCI, PCI_DEVICE_ID_VIRTIO_SCSI, VIRTIO_ID_SCSI, PCI_CLASS_BLK);
+		    VIRTIO_DEFAULT_TRANS, PCI_DEVICE_ID_VIRTIO_SCSI,
+		    VIRTIO_ID_SCSI, PCI_CLASS_BLK);
 
 	list_add_tail(&sdev->list, &sdevs);
 
diff --git a/tools/kvm/x86/include/kvm/kvm-arch.h b/tools/kvm/x86/include/kvm/kvm-arch.h
index 30086f4..2aaedcc 100644
--- a/tools/kvm/x86/include/kvm/kvm-arch.h
+++ b/tools/kvm/x86/include/kvm/kvm-arch.h
@@ -23,6 +23,8 @@ 
 #define KVM_PCI_MMIO_AREA	(KVM_MMIO_START + 0x1000000)
 #define KVM_VIRTIO_MMIO_AREA	(KVM_MMIO_START + 0x2000000)
 
+#define VIRTIO_DEFAULT_TRANS	VIRTIO_PCI
+
 struct kvm_arch {
 	u16			boot_selector;
 	u16			boot_ip;