AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-02-24 08:02:05 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
4d213e76a3
linux_dsm_epyc7002/arch
History
Zhenzhong Duan 4d213e76a3 iommu/vt-d: Avoid panic if iommu init fails in tboot system 
"intel_iommu=off" command line is used to disable iommu but iommu is force
enabled in a tboot system for security reason.

However for better performance on high speed network device, a new option
"intel_iommu=tboot_noforce" is introduced to disable the force on.

By default kernel should panic if iommu init fail in tboot for security
reason, but it's unnecessory if we use "intel_iommu=tboot_noforce,off".

Fix the code setting force_on and move intel_iommu_tboot_noforce
from tboot code to intel iommu code.

Fixes: 7304e8f28b ("iommu/vt-d: Correctly disable Intel IOMMU force on")
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@gmail.com>
Tested-by: Lukasz Hawrylko <lukasz.hawrylko@linux.intel.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20201110071908.3133-1-zhenzhong.duan@gmail.com
Signed-off-by: Will Deacon <will@kernel.org>
2020-11-18 13:09:07 +00:00
..
alpha
arc ARC: [plat-hsdk] Remap CCMs super early in asm boot trampoline 2020-11-02 11:45:09 -08:00
arm ARM, xtensa: highmem: avoid clobbering non-page aligned memory reservations 2020-11-04 10:42:57 +02:00
arm64 arm64 fixes for -rc3 2020-11-06 12:42:49 -08:00
c6x
csky treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
h8300
hexagon
ia64 treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
m68k
microblaze treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
mips treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
nds32
nios2
openrisc
parisc treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
powerpc powerpc/numa: Fix build when CONFIG_NUMA=n 2020-11-06 14:16:19 +11:00
riscv RISC-V: Fix the VDSO symbol generaton for binutils-2.35+ 2020-11-06 00:03:48 -08:00
s390 s390/pci: fix hot-plug of PCI function missing bus 2020-11-03 15:12:16 +01:00
sh treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
sparc treewide: Convert macro and uses of __section(foo) to __section("foo") 2020-10-25 14:51:49 -07:00
um arch/um: partially revert the conversion to __section() macro 2020-10-26 15:39:37 -07:00
x86 iommu/vt-d: Avoid panic if iommu init fails in tboot system 2020-11-18 13:09:07 +00:00
xtensa ARM, xtensa: highmem: avoid clobbering non-page aligned memory reservations 2020-11-04 10:42:57 +02:00
.gitignore
Kconfig