https://github.com/torvalds/linux
Revision 0bbe4ced53e36786eafc2ecbf9a1761f55b4a82e authored by Adrian Huang on 26 September 2020, 10:26:02 UTC, committed by Joerg Roedel on 01 October 2020, 12:11:36 UTC
Commit 387caf0b759a ("iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions") accidentally overwrites the 'flags' field in IVMD (struct ivmd_header) when the I/O virtualization memory definition is associated with the exclusion range entry. This leads to the corrupted IVMD table (incorrect checksum). The kdump kernel reports the invalid checksum: ACPI BIOS Warning (bug): Incorrect checksum in table [IVRS] - 0x5C, should be 0x60 (20200717/tbprint-177) AMD-Vi: [Firmware Bug]: IVRS invalid checksum Fix the above-mentioned issue by modifying the 'struct unity_map_entry' member instead of the IVMD header. Cleanup: The *exclusion_range* functions are not used anymore, so get rid of them. Fixes: 387caf0b759a ("iommu/amd: Treat per-device exclusion ranges as r/w unity-mapped regions") Reported-and-tested-by: Baoquan He <bhe@redhat.com> Signed-off-by: Adrian Huang <ahuang12@lenovo.com> Cc: Jerry Snitselaar <jsnitsel@redhat.com> Link: https://lore.kernel.org/r/20200926102602.19177-1-adrianhuang0701@gmail.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Tip revision: 0bbe4ced53e36786eafc2ecbf9a1761f55b4a82e authored by Adrian Huang on 26 September 2020, 10:26:02 UTC
iommu/amd: Fix the overwritten field in IVMD header
iommu/amd: Fix the overwritten field in IVMD header
Tip revision: 0bbe4ce
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arch | ||
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certs | ||
crypto | ||
drivers | ||
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include | ||
init | ||
ipc | ||
kernel | ||
lib | ||
mm | ||
net | ||
samples | ||
scripts | ||
security | ||
sound | ||
tools | ||
usr | ||
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.cocciconfig | -rw-r--r-- | 59 bytes |
.get_maintainer.ignore | -rw-r--r-- | 71 bytes |
.gitattributes | -rw-r--r-- | 62 bytes |
.gitignore | -rw-r--r-- | 1.8 KB |
.mailmap | -rw-r--r-- | 17.1 KB |
COPYING | -rw-r--r-- | 496 bytes |
CREDITS | -rw-r--r-- | 97.4 KB |
Kbuild | -rw-r--r-- | 1.3 KB |
Kconfig | -rw-r--r-- | 555 bytes |
MAINTAINERS | -rw-r--r-- | 557.1 KB |
Makefile | -rw-r--r-- | 61.7 KB |
README | -rw-r--r-- | 727 bytes |
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