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| author |   Alexandru Elisei <alexandru.elisei@arm.com> | 2020-09-24 13:37:31 +0100 |
|---|---|---|
| committer |   Marc Zyngier <maz@kernel.org> | 2020-09-29 14:26:38 +0100 |
| commit | 51dd2eb98c72c1ff4cdb1526fff9a259a563c257 (patch) | |
| tree | 88cffc991a8da9c7018afc01a383cb928f592f8d /Documentation/virt | |
| parent | KVM: arm64: Add undocumented return values for PMU device control group (diff) | |
| download | linux-dev-51dd2eb98c72c1ff4cdb1526fff9a259a563c257.tar.xz linux-dev-51dd2eb98c72c1ff4cdb1526fff9a259a563c257.zip | |
KVM: arm64: Match PMU error code descriptions with error conditions
Update the description of the PMU KVM_{GET, SET}_DEVICE_ATTR error codes
to be a better match for the code that returns them.
Signed-off-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Link: https://lore.kernel.org/r/20200924123731.268177-3-alexandru.elisei@arm.com
Diffstat (limited to 'Documentation/virt')
| -rw-r--r-- | Documentation/virt/kvm/devices/vcpu.rst | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Documentation/virt/kvm/devices/vcpu.rst b/Documentation/virt/kvm/devices/vcpu.rst index 1da576a4b767..da7c2ef7dafc 100644 --- a/Documentation/virt/kvm/devices/vcpu.rst +++ b/Documentation/virt/kvm/devices/vcpu.rst @@ -26,8 +26,9 @@ Returns: ======= ======================================================== -EBUSY The PMU overflow interrupt is already set -EFAULT Error reading interrupt number - -ENXIO The overflow interrupt not set when attempting to get it - -ENODEV PMUv3 not supported + -ENXIO PMUv3 not supported or the overflow interrupt not set + when attempting to get it + -ENODEV KVM_ARM_VCPU_PMU_V3 feature missing from VCPU -EINVAL Invalid PMU overflow interrupt number supplied or trying to set the IRQ number without using an in-kernel irqchip. @@ -48,8 +49,8 @@ Returns: ======= ====================================================== -EEXIST Interrupt number already used -ENODEV PMUv3 not supported or GIC not initialized - -ENXIO PMUv3 not properly configured or in-kernel irqchip not - configured as required prior to calling this attribute + -ENXIO PMUv3 not supported, missing VCPU feature or interrupt + number not set -EBUSY PMUv3 already initialized ======= ====================================================== |