Re: [PATCH 4/4] pci: export untrusted attribute in sysfs

[Rajat Jain <rajatja@google.com>]

Hi Bjorn, All,

Thank you so much for your helpful review and inputs.

On Mon, Jun 15, 2020 at 6:17 PM Rajat Jain <rajatja@google.com> wrote:
>
> This is needed to allow the userspace to determine when an untrusted
> device has been added, and thus allowing it to bind the driver manually
> to it, if it so wishes. This is being done as part of the approach
> discussed at https://lkml.org/lkml/2020/6/9/1331
>
> Signed-off-by: Rajat Jain <rajatja@google.com>

Considering the suggestions obtained on this patch to move this
attribute to device core, please consider this particular patch
rescinded. I'll submit this as a separate patch since I think that
will take more bake time and more discussion, than the other patches
in this patchset.

Please consider applying the other 3 patches in this patchset though,
and I'd appreciate your review and comments.

Thanks & Best Regards,

Rajat


> ---
>  drivers/pci/pci-sysfs.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
> index 6d78df981d41a..574e9c613ba26 100644
> --- a/drivers/pci/pci-sysfs.c
> +++ b/drivers/pci/pci-sysfs.c
> @@ -50,6 +50,7 @@ pci_config_attr(subsystem_device, "0x%04x\n");
>  pci_config_attr(revision, "0x%02x\n");
>  pci_config_attr(class, "0x%06x\n");
>  pci_config_attr(irq, "%u\n");
> +pci_config_attr(untrusted, "%u\n");
>
>  static ssize_t broken_parity_status_show(struct device *dev,
>                                          struct device_attribute *attr,
> @@ -608,6 +609,7 @@ static struct attribute *pci_dev_attrs[] = {
>  #endif
>         &dev_attr_driver_override.attr,
>         &dev_attr_ari_enabled.attr,
> +       &dev_attr_untrusted.attr,
>         NULL,
>  };
>
> --
> 2.27.0.290.gba653c62da-goog
>