diff options
| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2020-09-10 10:59:55 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-29 09:57:54 +0100 |
| commit | 42f16b3add6c3dde6751e5f8f7c2fab6bcc73250 (patch) | |
| tree | 941e17f64e88216a11a5334e7a58fb16a23164cb /include | |
| parent | aafa4b4c38e86a55f345391974e1ca5619974ecb (diff) | |
PCI/IOV: Mark VFs as not implementing PCI_COMMAND_MEMORY
[ Upstream commit 12856e7acde4702b7c3238c15fcba86ff6aa507f ]
For VFs, the Memory Space Enable bit in the Command Register is
hard-wired to 0.
Add a new bit to signify devices where the Command Register Memory
Space Enable bit does not control the device's response to MMIO
accesses.
Fixes: abafbc551fdd ("vfio-pci: Invalidate mmaps and block MMIO access on disabled memory")
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h index e92bd9b32f36..6a6a819c5b49 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -423,6 +423,7 @@ struct pci_dev { unsigned int is_probed:1; /* Device probing in progress */ unsigned int link_active_reporting:1;/* Device capable of reporting link active */ unsigned int no_vf_scan:1; /* Don't scan for VFs after IOV enablement */ + unsigned int no_command_memory:1; /* No PCI_COMMAND_MEMORY */ pci_dev_flags_t dev_flags; atomic_t enable_cnt; /* pci_enable_device has been called */ |