search for: guestpagesize

..., having looked a little deeper, I reckon virtio_mmio_probe() is > indeed missing a dma_set_mask() call compared to its PCI friends. The > only question then is where does virtio-mmio stand with respect to > legacy/modern/44-bit/64-bit etc.? Legacy virtio-mmio has a variable page granule (GuestPageSize), so the 44-bit limitation shouldn't apply. The legacy spec doesn't actually initialise GuestPageSize in the example initialisation sequence, but Linux does. Non-legacy uses absolute, 64-bit addresses regardless of transport, so yes, it might be as simple as adding: dma_set_mask_and_coher...

On 06/01/17 21:51, Andy Lutomirski wrote: > On Fri, Jan 6, 2017 at 10:32 AM, Robin Murphy <robin.murphy at arm.com> wrote: >> On 06/01/17 17:48, Jean-Philippe Brucker wrote: >>> Hi Will, >>> >>> On 20/12/16 15:14, Will Deacon wrote: >>>> Booting Linux on an ARM fastmodel containing an SMMU emulation results >>>> in an unexpected I/O

On 06/01/17 21:51, Andy Lutomirski wrote: > On Fri, Jan 6, 2017 at 10:32 AM, Robin Murphy <robin.murphy at arm.com> wrote: >> On 06/01/17 17:48, Jean-Philippe Brucker wrote: >>> Hi Will, >>> >>> On 20/12/16 15:14, Will Deacon wrote: >>>> Booting Linux on an ARM fastmodel containing an SMMU emulation results >>>> in an unexpected I/O

On Mon, 2011-12-12 at 02:52 +0000, Paul Brook wrote: > I've taken a look at the virtion-mmio spec, and it looks fairly > reasonable. > > The only thing I'd change is the GuestPageSize/QueuePFN mess. Seems like just > using straight 64-bit addresses would be a better solution. Maybe split into > a high/low pair to keep all registers as 32-bit registers. This can be done fairly simple by: 1. Bumping Version register content. 2. Adding two registers: QueueAddrLow (0x44)...

On Mon, 2011-12-12 at 02:52 +0000, Paul Brook wrote: > I've taken a look at the virtion-mmio spec, and it looks fairly > reasonable. > > The only thing I'd change is the GuestPageSize/QueuePFN mess. Seems like just > using straight 64-bit addresses would be a better solution. Maybe split into > a high/low pair to keep all registers as 32-bit registers. This can be done fairly simple by: 1. Bumping Version register content. 2. Adding two registers: QueueAddrLow (0x44)...

...0x010 R HostFeatures Features supported by the host - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures - * - * 0x020 W GuestFeatures Features activated by the guest - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures - * 0x028 W GuestPageSize Size of guest's memory page in bytes - * - * 0x030 W QueueSel Queue selector - * 0x034 R QueueNumMax Maximum size of the currently selected queue - * 0x038 W QueueNum Queue size for the currently selected queue - * 0x03c W QueueAlign Used Ring alignment for...

...0x010 R HostFeatures Features supported by the host - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures - * - * 0x020 W GuestFeatures Features activated by the guest - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures - * 0x028 W GuestPageSize Size of guest's memory page in bytes - * - * 0x030 W QueueSel Queue selector - * 0x034 R QueueNumMax Maximum size of the currently selected queue - * 0x038 W QueueNum Queue size for the currently selected queue - * 0x03c W QueueAlign Used Ring alignment for...

...0x010 R HostFeatures Features supported by the host - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures - * - * 0x020 W GuestFeatures Features activated by the guest - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures - * 0x028 W GuestPageSize Size of guest's memory page in bytes - * - * 0x030 W QueueSel Queue selector - * 0x034 R QueueNumMax Maximum size of the currently selected queue - * 0x038 W QueueNum Queue size for the currently selected queue - * 0x03c W QueueAlign Used Ring alignment for...

...0x010 R HostFeatures Features supported by the host - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures - * - * 0x020 W GuestFeatures Features activated by the guest - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures - * 0x028 W GuestPageSize Size of guest's memory page in bytes - * - * 0x030 W QueueSel Queue selector - * 0x034 R QueueNumMax Maximum size of the currently selected queue - * 0x038 W QueueNum Queue size for the currently selected queue - * 0x03c W QueueAlign Used Ring alignment for...

...Features supported by the host > - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures > - * > - * 0x020 W GuestFeatures Features activated by the guest > - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures > - * 0x028 W GuestPageSize Size of guest's memory page in bytes > - * > - * 0x030 W QueueSel Queue selector > - * 0x034 R QueueNumMax Maximum size of the currently selected queue > - * 0x038 W QueueNum Queue size for the currently selected queue > - * 0x03c W QueueAlign...

...Features supported by the host > - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures > - * > - * 0x020 W GuestFeatures Features activated by the guest > - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures > - * 0x028 W GuestPageSize Size of guest's memory page in bytes > - * > - * 0x030 W QueueSel Queue selector > - * 0x034 R QueueNumMax Maximum size of the currently selected queue > - * 0x038 W QueueNum Queue size for the currently selected queue > - * 0x03c W QueueAlign...

...0x010 R HostFeatures Features supported by the host - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures - * - * 0x020 W GuestFeatures Features activated by the guest - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures - * 0x028 W GuestPageSize Size of guest's memory page in bytes - * - * 0x030 W QueueSel Queue selector - * 0x034 R QueueNumMax Maximum size of the currently selected queue - * 0x038 W QueueNum Queue size for the currently selected queue - * 0x03c W QueueAlign Used Ring alignment for...

...0x010 R HostFeatures Features supported by the host - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures - * - * 0x020 W GuestFeatures Features activated by the guest - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures - * 0x028 W GuestPageSize Size of guest's memory page in bytes - * - * 0x030 W QueueSel Queue selector - * 0x034 R QueueNumMax Maximum size of the currently selected queue - * 0x038 W QueueNum Queue size for the currently selected queue - * 0x03c W QueueAlign Used Ring alignment for...

...Features supported by the host > - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures > - * > - * 0x020 W GuestFeatures Features activated by the guest > - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures > - * 0x028 W GuestPageSize Size of guest's memory page in bytes > - * > - * 0x030 W QueueSel Queue selector > - * 0x034 R QueueNumMax Maximum size of the currently selected queue > - * 0x038 W QueueNum Queue size for the currently selected queue > - * 0x03c W QueueAlign...

...Features supported by the host > - * 0x014 W HostFeaturesSel Set of host features to access via HostFeatures > - * > - * 0x020 W GuestFeatures Features activated by the guest > - * 0x024 W GuestFeaturesSel Set of activated features to set via GuestFeatures > - * 0x028 W GuestPageSize Size of guest's memory page in bytes > - * > - * 0x030 W QueueSel Queue selector > - * 0x034 R QueueNumMax Maximum size of the currently selected queue > - * 0x038 W QueueNum Queue size for the currently selected queue > - * 0x03c W QueueAlign...

On Mon, 2011-10-24 at 03:33 +0100, Rusty Russell wrote: > No, that's it I think. Please send a diff for the documentation, since > I'm updating the LyX master and I've already applied your previous > version. Here it goes (below). Also do you think you would be able to merge the driver (corresponding v4 patch follows) in the 3.2 merge window that seems to have just opened?

On Mon, 2011-10-24 at 03:33 +0100, Rusty Russell wrote: > No, that's it I think. Please send a diff for the documentation, since > I'm updating the LyX master and I've already applied your previous > version. Here it goes (below). Also do you think you would be able to merge the driver (corresponding v4 patch follows) in the 3.2 merge window that seems to have just opened?