On 2019/4/12 19:16, Joerg Roedel wrote:
> On Tue, Apr 09, 2019 at 08:53:03PM +0800, Zhen Lei wrote:
>> +static int __init iommu_dma_mode_setup(char *str)
>> +{
>> +if (!str)
>> +goto fail;
>> +
>> +if (!strncmp(str, "passthrough", 11))
>> +iommu_default_dma_mode
On 2019/4/16 23:21, Will Deacon wrote:
> On Fri, Apr 12, 2019 at 02:11:31PM +0100, Robin Murphy wrote:
>> On 12/04/2019 11:26, John Garry wrote:
>>> On 09/04/2019 13:53, Zhen Lei wrote:
+static int __init iommu_dma_mode_setup(char *str)
+{
+if (!str)
+goto fail;
On Fri, Apr 12, 2019 at 02:11:31PM +0100, Robin Murphy wrote:
> On 12/04/2019 11:26, John Garry wrote:
> > On 09/04/2019 13:53, Zhen Lei wrote:
> > > +static int __init iommu_dma_mode_setup(char *str)
> > > +{
> > > + if (!str)
> > > + goto fail;
> > > +
> > > + if (!strncmp(str,
On 12/04/2019 11:26, John Garry wrote:
On 09/04/2019 13:53, Zhen Lei wrote:
Currently the IOMMU dma contains 3 modes: passthrough, lazy, strict. The
passthrough mode bypass the IOMMU, the lazy mode defer the invalidation
of hardware TLBs, and the strict mode invalidate IOMMU hardware TLBs
On Tue, Apr 09, 2019 at 08:53:03PM +0800, Zhen Lei wrote:
> +static int __init iommu_dma_mode_setup(char *str)
> +{
> + if (!str)
> + goto fail;
> +
> + if (!strncmp(str, "passthrough", 11))
> + iommu_default_dma_mode = IOMMU_DMA_MODE_PASSTHROUGH;
> + else if
On 09/04/2019 13:53, Zhen Lei wrote:
Currently the IOMMU dma contains 3 modes: passthrough, lazy, strict. The
passthrough mode bypass the IOMMU, the lazy mode defer the invalidation
of hardware TLBs, and the strict mode invalidate IOMMU hardware TLBs
synchronously. The three modes are mutually
Currently the IOMMU dma contains 3 modes: passthrough, lazy, strict. The
passthrough mode bypass the IOMMU, the lazy mode defer the invalidation
of hardware TLBs, and the strict mode invalidate IOMMU hardware TLBs
synchronously. The three modes are mutually exclusive. But the current
boot options
