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Diffstat (limited to 'Documentation/admin-guide/kernel-parameters.txt')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 9d699c85d8fe..638342d0a095 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -1020,6 +1020,12 @@ address. The serial port must already be setup and configured. Options are not yet supported. + qcom_geni,<addr> + Start an early, polled-mode console on a Qualcomm + Generic Interface (GENI) based serial port at the + specified address. The serial port must already be + setup and configured. Options are not yet supported. + earlyprintk= [X86,SH,ARM,M68k,S390] earlyprintk=vga earlyprintk=efi @@ -3156,6 +3162,8 @@ on: Turn realloc on realloc same as realloc=on noari do not use PCIe ARI. + noats [PCIE, Intel-IOMMU, AMD-IOMMU] + do not use PCIe ATS (and IOMMU device IOTLB). pcie_scan_all Scan all possible PCIe devices. Otherwise we only look for one device below a PCIe downstream port. @@ -4098,6 +4106,23 @@ expediting. Set to zero to disable automatic expediting. + ssbd= [ARM64,HW] + Speculative Store Bypass Disable control + + On CPUs that are vulnerable to the Speculative + Store Bypass vulnerability and offer a + firmware based mitigation, this parameter + indicates how the mitigation should be used: + + force-on: Unconditionally enable mitigation for + for both kernel and userspace + force-off: Unconditionally disable mitigation for + for both kernel and userspace + kernel: Always enable mitigation in the + kernel, and offer a prctl interface + to allow userspace to register its + interest in being mitigated too. + stack_guard_gap= [MM] override the default stack gap protection. The value is in page units and it defines how many pages prior |
