On Wed, Oct 21, 2020 at 8:59 PM Dan Williams wrote:
>
> On Wed, Oct 21, 2020 at 1:57 AM Daniel Vetter wrote:
> >
> > We want all iomem mmaps to consistently revoke ptes when the kernel
> > takes over and CONFIG_IO_STRICT_DEVMEM is enabled. This includes the
> > pci bar mmaps available through pro
On Wed, Oct 21, 2020 at 1:57 AM Daniel Vetter wrote:
>
> We want all iomem mmaps to consistently revoke ptes when the kernel
> takes over and CONFIG_IO_STRICT_DEVMEM is enabled. This includes the
> pci bar mmaps available through procfs and sysfs, which currently do
> not revoke mappings.
>
> To p
We want all iomem mmaps to consistently revoke ptes when the kernel
takes over and CONFIG_IO_STRICT_DEVMEM is enabled. This includes the
pci bar mmaps available through procfs and sysfs, which currently do
not revoke mappings.
To prepare for this, move the code from the /dev/kmem driver to
kernel/