On 27 October 2021 10:50:15 BST, Thomas Gleixner <tglx@xxxxxxxxxxxxx> wrote: >The recent rework of PCI/MSI[X] masking moved the non-mask checks from the >low level accessors into the higher level mask/unmask functions. > >This missed the fact that these accessors can be invoked from other places >as well. The missing checks break XEN-PV which sets pci_msi_ignore_mask and >also violates the virtual MSIX and the msi_attrib.maskbit protections. Not just PV. It's Xen HVM guests too. I'll also give it a spin on both Xen and not-Xen. Thanks. -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
