From: Emil Velikov emil.velikov@collabora.com
Realistically no drivers, but vmwgfx care about the DRM_AUTH flag here.
Follow-up work in this driver will properly isolate primary clients from different master realms, thus we'll no longer need to parse _any_ ioctl flags.
Until that work lands, add a local workaround.
v2: Use bitwise or (Deepak)
Cc: VMware Graphics linux-graphics-maintainer@vmware.com Cc: Thomas Hellstrom thellstrom@vmware.com Cc: Deepak Singh Rawat drawat@vmware.com Signed-off-by: Emil Velikov emil.velikov@collabora.com --- I'd like to merge this and the next patch hrough the drm-misc tree. Ack and rb are appreciated.
Thanks Emil --- drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index cd0d49d8a8da..53afb1d597e8 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1134,6 +1134,15 @@ static long vmw_generic_ioctl(struct file *filp, unsigned int cmd, } else if (!drm_ioctl_flags(nr, &flags)) return -EINVAL;
+ /* + * Little workaround until the vmwgfx patches providing isolation of + * primary clients from different master realms land. + * With that work, we'll no longer need to parse _any_ ioctl flags. + */ + if (nr == 0x2d /* DRM_IOCTL_PRIME_HANDLE_TO_FD */ || + nr == 0x2e /* DRM_IOCTL_PRIME_FD_TO_HANDLE */) + flags |= DRM_AUTH; + vmaster = vmw_master_check(dev, file_priv, flags); if (IS_ERR(vmaster)) { ret = PTR_ERR(vmaster);