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| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2020-09-10 17:59:55 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-10-29 12:08:05 +0300 |
| commit | 7e4f15f7c99bd1cbf296db3b55039206db985057 (patch) | |
| tree | f3adbb8b3cdf5bbb3d240f11f92b02e9b3060bf5 /include | |
| parent | 167b37558b7fed69b9ef20f68aa1f34de71d16d6 (diff) | |
| download | linux-7e4f15f7c99bd1cbf296db3b55039206db985057.tar.xz | |
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 34c1c4f45288..1bc3c020672f 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -439,6 +439,7 @@ 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 */ |