* Jan Kiszka [2020-04-30 14:59:50]:
> >I believe ivshmem2_virtio requires hypervisor to support PCI device emulation
> >(for life-cycle management of VMs), which our hypervisor may not support. A
> >simple shared memory and doorbell or message-queue based transport will work
> >for
> >us.
>
>
On 30.04.20 13:11, Srivatsa Vaddagiri wrote:
* Will Deacon [2020-04-30 11:41:50]:
On Thu, Apr 30, 2020 at 04:04:46PM +0530, Srivatsa Vaddagiri wrote:
If CONFIG_VIRTIO_MMIO_OPS is defined, then I expect this to be unconditionally
set to 'magic_qcom_ops' that uses hypervisor-supported
* Will Deacon [2020-04-30 11:41:50]:
> On Thu, Apr 30, 2020 at 04:04:46PM +0530, Srivatsa Vaddagiri wrote:
> > If CONFIG_VIRTIO_MMIO_OPS is defined, then I expect this to be
> > unconditionally
> > set to 'magic_qcom_ops' that uses hypervisor-supported interface for IO (for
> > example:
On Thu, Apr 30, 2020 at 04:04:46PM +0530, Srivatsa Vaddagiri wrote:
> * Will Deacon [2020-04-30 11:14:32]:
>
> > > +#ifdef CONFIG_VIRTIO_MMIO_OPS
> > >
> > > +static struct virtio_mmio_ops *mmio_ops;
> > > +
> > > +#define virtio_readb(a) mmio_ops->mmio_readl((a))
> > > +#define
* Will Deacon [2020-04-30 11:14:32]:
> > +#ifdef CONFIG_VIRTIO_MMIO_OPS
> >
> > +static struct virtio_mmio_ops *mmio_ops;
> > +
> > +#define virtio_readb(a)mmio_ops->mmio_readl((a))
> > +#define virtio_readw(a)mmio_ops->mmio_readl((a))
> > +#define virtio_readl(a)
On Thu, Apr 30, 2020 at 03:32:56PM +0530, Srivatsa Vaddagiri wrote:
> Some hypervisors may not support MMIO transport i.e trap config
> space access and have it be handled by backend driver. They may
> allow other ways to interact with backend such as message-queue
> or doorbell API. This patch
Some hypervisors may not support MMIO transport i.e trap config
space access and have it be handled by backend driver. They may
allow other ways to interact with backend such as message-queue
or doorbell API. This patch allows for hypervisor specific
methods for config space IO.
Signed-off-by:
