Revision f32ab7547161b9fa7ebfbc4f18ea1eb3fd49fe25 authored by =?UTF-8?q?Christian=20K=C3=B6nig?= on 11 January 2018, 13:23:29 UTC, committed by Bjorn Helgaas on 11 January 2018, 17:22:39 UTC
Only try to enable a 64-bit window on AMD CPUs when "pci=big_root_window" is specified. This taints the kernel because the new 64-bit window uses address space we don't know anything about, and it may contain unreported devices or memory that would conflict with the window. The pci_amd_enable_64bit_bar() quirk that enables the window is specific to AMD CPUs. The generic solution would be to have the firmware enable the window and describe it in the host bridge's _CRS method, or at least describe it in the _PRS method so the OS would have the option of enabling it. Signed-off-by: Christian König <christian.koenig@amd.com> [bhelgaas: changelog, extend doc, mention taint in dmesg] Signed-off-by: Bjorn Helgaas <helgaas@kernel.org>
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File | Mode | Size |
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auxdisplay | ||
blackfin | ||
bpf | ||
configfs | ||
connector | ||
hidraw | ||
hw_breakpoint | ||
kdb | ||
kfifo | ||
kobject | ||
kprobes | ||
livepatch | ||
mei | ||
mic | ||
pktgen | ||
rpmsg | ||
seccomp | ||
sockmap | ||
statx | ||
timers | ||
trace_events | ||
trace_printk | ||
uhid | ||
v4l | ||
vfio-mdev | ||
watchdog | ||
Kconfig | -rw-r--r-- | 3.5 KB |
Makefile | -rw-r--r-- | 246 bytes |
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