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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-04 09:37:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-04 09:37:02 -0700
commit5bb3a16dbea8ac40a36056e8ca79d37d47198a67 (patch)
tree8cf0cdb8954e25538265022ecb6f0cd711b6e164 /Documentation
parentMerge tag 'ras_core_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip (diff)
parentx86/apic: Don't disable x2APIC if locked (diff)
downloadlinux-dev-5bb3a16dbea8ac40a36056e8ca79d37d47198a67.tar.xz
linux-dev-5bb3a16dbea8ac40a36056e8ca79d37d47198a67.zip
Merge tag 'x86_apic_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 APIC update from Borislav Petkov: - Add support for locking the APIC in X2APIC mode to prevent SGX enclave leaks * tag 'x86_apic_for_v6.1_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic: Don't disable x2APIC if locked
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 426fa892d311..2bc11a61c4d0 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3805,6 +3805,10 @@
nox2apic [X86-64,APIC] Do not enable x2APIC mode.
+ NOTE: this parameter will be ignored on systems with the
+ LEGACY_XAPIC_DISABLED bit set in the
+ IA32_XAPIC_DISABLE_STATUS MSR.
+
nps_mtm_hs_ctr= [KNL,ARC]
This parameter sets the maximum duration, in
cycles, each HW thread of the CTOP can run