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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-18 17:24:01 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-18 17:24:01 (GMT) |
commit | 53861af9a17022898619a2ae4ead0dfc601b7c13 (patch) | |
tree | dc11088d9e86fa1d8d8479974864153a8f976897 /drivers/char | |
parent | 5c2770079fb9b8c5bfb7113d9e76de66e77a0e24 (diff) | |
parent | 5b40a7daf51812b35cf05d1601a779a7043f8414 (diff) | |
download | linux-53861af9a17022898619a2ae4ead0dfc601b7c13.tar.xz |
Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux
Pull virtio updates from Rusty Russell:
"OK, this has the big virtio 1.0 implementation, as specified by OASIS.
On top of tht is the major rework of lguest, to use PCI and virtio
1.0, to double-check the implementation.
Then comes the inevitable fixes and cleanups from that work"
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (80 commits)
virtio: don't set VIRTIO_CONFIG_S_DRIVER_OK twice.
virtio_net: unconditionally define struct virtio_net_hdr_v1.
tools/lguest: don't use legacy definitions for net device in example launcher.
virtio: Don't expose legacy net features when VIRTIO_NET_NO_LEGACY defined.
tools/lguest: use common error macros in the example launcher.
tools/lguest: give virtqueues names for better error messages
tools/lguest: more documentation and checking of virtio 1.0 compliance.
lguest: don't look in console features to find emerg_wr.
tools/lguest: don't start devices until DRIVER_OK status set.
tools/lguest: handle indirect partway through chain.
tools/lguest: insert driver references from the 1.0 spec (4.1 Virtio Over PCI)
tools/lguest: insert device references from the 1.0 spec (4.1 Virtio Over PCI)
tools/lguest: rename virtio_pci_cfg_cap field to match spec.
tools/lguest: fix features_accepted logic in example launcher.
tools/lguest: handle device reset correctly in example launcher.
virtual: Documentation: simplify and generalize paravirt_ops.txt
lguest: remove NOTIFY call and eventfd facility.
lguest: remove NOTIFY facility from demonstration launcher.
lguest: use the PCI console device's emerg_wr for early boot messages.
lguest: always put console in PCI slot #1.
...
Diffstat (limited to 'drivers/char')
-rw-r--r-- | drivers/char/virtio_console.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index 26afb56..fae2dbb 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -1986,7 +1986,10 @@ static int virtcons_probe(struct virtio_device *vdev) bool multiport; bool early = early_put_chars != NULL; - if (!vdev->config->get) { + /* We only need a config space if features are offered */ + if (!vdev->config->get && + (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_SIZE) + || virtio_has_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT))) { dev_err(&vdev->dev, "%s failure: config access disabled\n", __func__); return -EINVAL; |