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| author | Antti Järvinen <antti.jarvinen@gmail.com> | 2021-03-15 10:26:06 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-23 14:42:50 +0200 |
| commit | 1e460ddf5be1dae1f2b4c46b5a16b0f32bec4e1d (patch) | |
| tree | 599c89586bbafe43458f31d11cb5c031c3346980 /drivers/pci/controller | |
| parent | c9fd0ab39f0ae4143f6d57ed8a6c3416d772e408 (diff) | |
| download | kernel_replicant_linux-1e460ddf5be1dae1f2b4c46b5a16b0f32bec4e1d.tar.gz kernel_replicant_linux-1e460ddf5be1dae1f2b4c46b5a16b0f32bec4e1d.tar.bz2 kernel_replicant_linux-1e460ddf5be1dae1f2b4c46b5a16b0f32bec4e1d.zip | |
PCI: Mark TI C667X to avoid bus reset
commit b5cf198e74a91073d12839a3e2db99994a39995d upstream.
Some TI KeyStone C667X devices do not support bus/hot reset. The PCIESS
automatically disables LTSSM when Secondary Bus Reset is received and
device stops working. Prevent bus reset for these devices. With this
change, the device can be assigned to VMs with VFIO, but it will leak state
between VMs.
Reference: https://e2e.ti.com/support/processors/f/791/t/954382
Link: https://lore.kernel.org/r/20210315102606.17153-1-antti.jarvinen@gmail.com
Signed-off-by: Antti Järvinen <antti.jarvinen@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/pci/controller')
0 files changed, 0 insertions, 0 deletions