Commit 69bf758b authored by Mauro Carvalho Chehab's avatar Mauro Carvalho Chehab Committed by Paolo Bonzini
Browse files

docs: kvm: convert arm/hyp-abi.txt to ReST 



- Add proper markups for titles;
- Adjust whitespaces and blank lines to match ReST
  needs;
- Mark literal blocks as such.

Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 106ee47d

Documentation/virt/kvm/arm/hyp-abi.txt→Documentation/virt/kvm/arm/hyp-abi.rst

+19 −9
Original line number Diff line number Diff line 
* Internal ABI between the kernel and HYP

.. SPDX-License-Identifier: GPL-2.0



=======================================

Internal ABI between the kernel and HYP

=======================================



This file documents the interaction between the Linux kernel and the

hypervisor layer when running Linux as a hypervisor (for example
@@ -19,7 +23,9 @@ and only act on individual CPUs. 
Unless specified otherwise, any built-in hypervisor must implement

these functions (see arch/arm{,64}/include/asm/virt.h):



* r0/x0 = HVC_SET_VECTORS

* ::



    r0/x0 = HVC_SET_VECTORS

    r1/x1 = vectors



  Set HVBAR/VBAR_EL2 to 'vectors' to enable a hypervisor. 'vectors'
@@ -27,13 +33,17 @@ these functions (see arch/arm{,64}/include/asm/virt.h): 
  of the architecture. Only implemented by the initial stubs, not by

  Linux hypervisors.



* r0/x0 = HVC_RESET_VECTORS

* ::



    r0/x0 = HVC_RESET_VECTORS



  Turn HYP/EL2 MMU off, and reset HVBAR/VBAR_EL2 to the initials

  stubs' exception vector value. This effectively disables an existing

  hypervisor.



* r0/x0 = HVC_SOFT_RESTART

* ::



    r0/x0 = HVC_SOFT_RESTART

    r1/x1 = restart address

    x2 = x0's value when entering the next payload (arm64)

    x3 = x1's value when entering the next payload (arm64)

Documentation/virt/kvm/arm/index.rst

+1 −0
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@@ -7,4 +7,5 @@ ARM 
.. toctree::

   :maxdepth: 2



   hyp-abi

   pvtime

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