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| author | Wei Yang <weiyang@linux.vnet.ibm.com> | 2015-07-29 11:52:58 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2015-09-14 18:34:17 +0300 |
| commit | 70675e0b6a1ae20f8e93f9fc083d28034ad38948 (patch) | |
| tree | 8c4a3b6aae3923359680668ad98fcf18f43957fb /tools/perf/scripts/python/stackcollapse.py | |
| parent | 6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff) | |
| download | linux-70675e0b6a1ae20f8e93f9fc083d28034ad38948.tar.xz | |
PCI: Don't try to restore VF BARs
VF BARs are read-only zero, so updating VF BARs will not have any effect.
See the SR-IOV spec r1.1, sec 3.4.1.11.
Don't update VF BARs in pci_restore_bars().
This avoids spurious "BAR %d: error updating" messages that we see when
doing vfio pass-through after 6eb7018705de ("vfio-pci: Move idle devices to
D3hot power state").
[bhelgaas: changelog, fix whitespace]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions