Piteball/android_kernel_samsung_msm8976
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3 commits

Author SHA1 Message Date
Anthony Liguori
27ebe308af virtio: Use spin_lock_irqsave/restore for virtio-pci 
virtio-pci acquires its spin lock in an interrupt context so it's necessary
to use spin_lock_irqsave/restore variants.  This patch fixes guest SMP when
using virtio devices in KVM.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2008-03-17 22:58:13 +11:00
Anthony Liguori
55a7c06604 virtio: Use PCI revision field to indicate virtio PCI ABI version 
As Avi pointed out, as we continue to massage the virtio PCI ABI, we can make
things a little more friendly to users by utilizing the PCI revision field to
indicate which version of the ABI we're using.  This is a hard ABI version
and incrementing it will cause the guest driver to break.

This is the necessary changes to virtio_pci to support this.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2008-02-04 23:50:12 +11:00
Anthony Liguori
3343660d8c virtio: PCI device 
This is a PCI device that implements a transport for virtio.  It allows virtio
devices to be used by QEMU based VMMs like KVM or Xen.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2008-02-04 23:50:11 +11:00