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| author |   Will Deacon <will@kernel.org> | 2022-07-25 10:59:15 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2022-07-25 10:59:15 +0100 |
| commit | f96d67a8af7a39f7ffaac464d8bccc4c720e52c2 (patch) | |
| tree | daee5c1458a5d8ed1bdb58b54de19b232ebd44aa /Documentation | |
| parent | Merge branch 'for-next/cpufeature' into for-next/core (diff) | |
| parent | arm64: fix KASAN_INLINE (diff) | |
| download | wireguard-linux-f96d67a8af7a39f7ffaac464d8bccc4c720e52c2.tar.xz wireguard-linux-f96d67a8af7a39f7ffaac464d8bccc4c720e52c2.zip | |
Merge branch 'for-next/boot' into for-next/core
* for-next/boot: (34 commits)
arm64: fix KASAN_INLINE
arm64: Add an override for ID_AA64SMFR0_EL1.FA64
arm64: Add the arm64.nosve command line option
arm64: Add the arm64.nosme command line option
arm64: Expose a __check_override primitive for oddball features
arm64: Allow the idreg override to deal with variable field width
arm64: Factor out checking of a feature against the override into a macro
arm64: Allow sticky E2H when entering EL1
arm64: Save state of HCR_EL2.E2H before switch to EL1
arm64: Rename the VHE switch to "finalise_el2"
arm64: mm: fix booting with 52-bit address space
arm64: head: remove __PHYS_OFFSET
arm64: lds: use PROVIDE instead of conditional definitions
arm64: setup: drop early FDT pointer helpers
arm64: head: avoid relocating the kernel twice for KASLR
arm64: kaslr: defer initialization to initcall where permitted
arm64: head: record CPU boot mode after enabling the MMU
arm64: head: populate kernel page tables with MMU and caches on
arm64: head: factor out TTBR1 assignment into a macro
arm64: idreg-override: use early FDT mapping in ID map
...
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/kernel-parameters.txt | 6 | ||||
| -rw-r--r-- | Documentation/virt/kvm/arm/hyp-abi.rst | 11 |
2 files changed, 12 insertions, 5 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 1f5f9c1c96df..3c78af07b313 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -400,6 +400,12 @@ arm64.nomte [ARM64] Unconditionally disable Memory Tagging Extension support + arm64.nosve [ARM64] Unconditionally disable Scalable Vector + Extension support + + arm64.nosme [ARM64] Unconditionally disable Scalable Matrix + Extension support + ataflop= [HW,M68k] atarimouse= [HW,MOUSE] Atari Mouse diff --git a/Documentation/virt/kvm/arm/hyp-abi.rst b/Documentation/virt/kvm/arm/hyp-abi.rst index 4d43fbc25195..412b276449d3 100644 --- a/Documentation/virt/kvm/arm/hyp-abi.rst +++ b/Documentation/virt/kvm/arm/hyp-abi.rst @@ -60,12 +60,13 @@ these functions (see arch/arm{,64}/include/asm/virt.h): * :: - x0 = HVC_VHE_RESTART (arm64 only) + x0 = HVC_FINALISE_EL2 (arm64 only) - Attempt to upgrade the kernel's exception level from EL1 to EL2 by enabling - the VHE mode. This is conditioned by the CPU supporting VHE, the EL2 MMU - being off, and VHE not being disabled by any other means (command line - option, for example). + Finish configuring EL2 depending on the command-line options, + including an attempt to upgrade the kernel's exception level from + EL1 to EL2 by enabling the VHE mode. This is conditioned by the CPU + supporting VHE, the EL2 MMU being off, and VHE not being disabled by + any other means (command line option, for example). Any other value of r0/x0 triggers a hypervisor-specific handling, which is not documented here. |