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docs: kvm: arm/psci.txt: convert to ReST

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- Add a title for the document;
- Adjust whitespaces for it to be properly formatted after
  parsed.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2020-02-10 07:02:57 +01:00 committed by Paolo Bonzini
parent 69bf758bc8
commit cec0e48be3
2 changed files with 32 additions and 15 deletions
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1
Documentation/virt/kvm/arm/index.rst
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@ -8,4 +8,5 @@ ARM
:maxdepth: 2 :maxdepth: 2
hyp-abi hyp-abi
psci
pvtime pvtime

46
Documentation/virt/kvm/arm/psci.txt → Documentation/virt/kvm/arm/psci.rst
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@ -1,3 +1,9 @@
.. SPDX-License-Identifier: GPL-2.0
=========================================
Power State Coordination Interface (PSCI)
=========================================
KVM implements the PSCI (Power State Coordination Interface) KVM implements the PSCI (Power State Coordination Interface)
specification in order to provide services such as CPU on/off, reset specification in order to provide services such as CPU on/off, reset
and power-off to the guest. and power-off to the guest.
@ -30,32 +36,42 @@ The following register is defined:
- Affects the whole VM (even if the register view is per-vcpu) - Affects the whole VM (even if the register view is per-vcpu)
* KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1: * KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1:
Holds the state of the firmware support to mitigate CVE-2017-5715, as Holds the state of the firmware support to mitigate CVE-2017-5715, as
offered by KVM to the guest via a HVC call. The workaround is described offered by KVM to the guest via a HVC call. The workaround is described
under SMCCC_ARCH_WORKAROUND_1 in [1]. under SMCCC_ARCH_WORKAROUND_1 in [1].
Accepted values are: Accepted values are:
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL: KVM does not offer
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_AVAIL:
KVM does not offer
firmware support for the workaround. The mitigation status for the firmware support for the workaround. The mitigation status for the
guest is unknown. guest is unknown.
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL: The workaround HVC call is KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_AVAIL:
The workaround HVC call is
available to the guest and required for the mitigation. available to the guest and required for the mitigation.
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED: The workaround HVC call KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_1_NOT_REQUIRED:
The workaround HVC call
is available to the guest, but it is not needed on this VCPU. is available to the guest, but it is not needed on this VCPU.
* KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2: * KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2:
Holds the state of the firmware support to mitigate CVE-2018-3639, as Holds the state of the firmware support to mitigate CVE-2018-3639, as
offered by KVM to the guest via a HVC call. The workaround is described offered by KVM to the guest via a HVC call. The workaround is described
under SMCCC_ARCH_WORKAROUND_2 in [1]. under SMCCC_ARCH_WORKAROUND_2 in [1]_.
Accepted values are: Accepted values are:
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL: A workaround is not
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_AVAIL:
A workaround is not
available. KVM does not offer firmware support for the workaround. available. KVM does not offer firmware support for the workaround.
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN: The workaround state is KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_UNKNOWN:
The workaround state is
unknown. KVM does not offer firmware support for the workaround. unknown. KVM does not offer firmware support for the workaround.
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL: The workaround is available, KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_AVAIL:
The workaround is available,
and can be disabled by a vCPU. If and can be disabled by a vCPU. If
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED is set, it is active for KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_ENABLED is set, it is active for
this vCPU. this vCPU.
KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED: The workaround is KVM_REG_ARM_SMCCC_ARCH_WORKAROUND_2_NOT_REQUIRED:
always active on this vCPU or it is not needed. The workaround is always active on this vCPU or it is not needed.
[1] https://developer.arm.com/-/media/developer/pdf/ARM_DEN_0070A_Firmware_interfaces_for_mitigating_CVE-2017-5715.pdf .. [1] https://developer.arm.com/-/media/developer/pdf/ARM_DEN_0070A_Firmware_interfaces_for_mitigating_CVE-2017-5715.pdf