On Fri, May 06, 2022 at 08:00:44PM +0800, Kun(llfl) wrote:
From: Lu Baolu baolu.lu@linux.intel.com
ANBZ: #1105
commit 474dd1c6506411752a9b2f2233eec11f1733a099 upstream.
The commit 2b0140c69637e ("iommu/vt-d: Use pci_real_dma_dev() for mapping") fixes an issue of "sub-device is removed where the context entry is cleared for all aliases". But this commit didn't consider the PASID entry and PASID table in VT-d scalable mode. This fix increases the coverage of scalable mode.
Suggested-by: Sanjay Kumar sanjay.k.kumar@intel.com Fixes: 8038bdb855331 ("iommu/vt-d: Only clear real DMA device's context entries") Fixes: 2b0140c69637e ("iommu/vt-d: Use pci_real_dma_dev() for mapping") Cc: stable@vger.kernel.org # v5.6+
Same here, what kernels is this to be applied to, and what is the "ANBZ" tag?
thanks,
greg k-h