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authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 15:45:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-01 15:45:27 -0700
commitb23c4771ff62de8ca9b5e4a2d64491b2fb6f8f69 (patch)
tree3ff6b2bdfec161fbc383bba06bab6329e81b02f7 /Documentation/arm64/booting.rst
parentc2b0fc847f3122e5a4176c3772626a7a8facced0 (diff)
parente35b5a4c494a75a683ddf4901a43e0a128d5bfe3 (diff)
downloadlinux-b23c4771ff62de8ca9b5e4a2d64491b2fb6f8f69.tar.gz
Merge tag 'docs-5.8' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
 "A fair amount of stuff this time around, dominated by yet another
  massive set from Mauro toward the completion of the RST conversion. I
  *really* hope we are getting close to the end of this. Meanwhile,
  those patches reach pretty far afield to update document references
  around the tree; there should be no actual code changes there. There
  will be, alas, more of the usual trivial merge conflicts.

  Beyond that we have more translations, improvements to the sphinx
  scripting, a number of additions to the sysctl documentation, and lots
  of fixes"

* tag 'docs-5.8' of git://git.lwn.net/linux: (130 commits)
  Documentation: fixes to the maintainer-entry-profile template
  zswap: docs/vm: Fix typo accept_threshold_percent in zswap.rst
  tracing: Fix events.rst section numbering
  docs: acpi: fix old http link and improve document format
  docs: filesystems: add info about efivars content
  Documentation: LSM: Correct the basic LSM description
  mailmap: change email for Ricardo Ribalda
  docs: sysctl/kernel: document unaligned controls
  Documentation: admin-guide: update bug-hunting.rst
  docs: sysctl/kernel: document ngroups_max
  nvdimm: fixes to maintainter-entry-profile
  Documentation/features: Correct RISC-V kprobes support entry
  Documentation/features: Refresh the arch support status files
  Revert "docs: sysctl/kernel: document ngroups_max"
  docs: move locking-specific documents to locking/
  docs: move digsig docs to the security book
  docs: move the kref doc into the core-api book
  docs: add IRQ documentation at the core-api book
  docs: debugging-via-ohci1394.txt: add it to the core-api book
  docs: fix references for ipmi.rst file
  ...
Diffstat (limited to 'Documentation/arm64/booting.rst')
-rw-r--r--Documentation/arm64/booting.rst36
1 files changed, 22 insertions, 14 deletions
diff --git a/Documentation/arm64/booting.rst b/Documentation/arm64/booting.rst
index d063c05d5fb0..7552dbc1cc54 100644
--- a/Documentation/arm64/booting.rst
+++ b/Documentation/arm64/booting.rst
@@ -173,8 +173,10 @@ Before jumping into the kernel, the following conditions must be met:
 - Caches, MMUs
 
   The MMU must be off.
+
   The instruction cache may be on or off, and must not hold any stale
   entries corresponding to the loaded kernel image.
+
   The address range corresponding to the loaded kernel image must be
   cleaned to the PoC. In the presence of a system cache or other
   coherent masters with caches enabled, this will typically require
@@ -239,6 +241,7 @@ Before jumping into the kernel, the following conditions must be met:
   - The DT or ACPI tables must describe a GICv2 interrupt controller.
 
   For CPUs with pointer authentication functionality:
+
   - If EL3 is present:
 
     - SCR_EL3.APK (bit 16) must be initialised to 0b1
@@ -250,18 +253,22 @@ Before jumping into the kernel, the following conditions must be met:
     - HCR_EL2.API (bit 41) must be initialised to 0b1
 
   For CPUs with Activity Monitors Unit v1 (AMUv1) extension present:
+
   - If EL3 is present:
-    CPTR_EL3.TAM (bit 30) must be initialised to 0b0
-    CPTR_EL2.TAM (bit 30) must be initialised to 0b0
-    AMCNTENSET0_EL0 must be initialised to 0b1111
-    AMCNTENSET1_EL0 must be initialised to a platform specific value
-    having 0b1 set for the corresponding bit for each of the auxiliary
-    counters present.
+
+    - CPTR_EL3.TAM (bit 30) must be initialised to 0b0
+    - CPTR_EL2.TAM (bit 30) must be initialised to 0b0
+    - AMCNTENSET0_EL0 must be initialised to 0b1111
+    - AMCNTENSET1_EL0 must be initialised to a platform specific value
+      having 0b1 set for the corresponding bit for each of the auxiliary
+      counters present.
+
   - If the kernel is entered at EL1:
-    AMCNTENSET0_EL0 must be initialised to 0b1111
-    AMCNTENSET1_EL0 must be initialised to a platform specific value
-    having 0b1 set for the corresponding bit for each of the auxiliary
-    counters present.
+
+    - AMCNTENSET0_EL0 must be initialised to 0b1111
+    - AMCNTENSET1_EL0 must be initialised to a platform specific value
+      having 0b1 set for the corresponding bit for each of the auxiliary
+      counters present.
 
 The requirements described above for CPU mode, caches, MMUs, architected
 timers, coherency and system registers apply to all CPUs.  All CPUs must
@@ -305,7 +312,8 @@ following manner:
   Documentation/devicetree/bindings/arm/psci.yaml.
 
 - Secondary CPU general-purpose register settings
-  x0 = 0 (reserved for future use)
-  x1 = 0 (reserved for future use)
-  x2 = 0 (reserved for future use)
-  x3 = 0 (reserved for future use)
+
+  - x0 = 0 (reserved for future use)
+  - x1 = 0 (reserved for future use)
+  - x2 = 0 (reserved for future use)
+  - x3 = 0 (reserved for future use)