[PATCH v2 2/2] KVM: arm64: Match PMU error code descriptions with error conditions
Alexandru Elisei
alexandru.elisei at arm.com
Thu Sep 24 08:37:31 EDT 2020
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 at arm.com>
---
Documentation/virt/kvm/devices/vcpu.rst | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/Documentation/virt/kvm/devices/vcpu.rst b/Documentation/virt/kvm/devices/vcpu.rst
index 96d6cf77cb1e..8c24411ece2e 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
======= ======================================================
--
2.28.0
More information about the linux-arm-kernel
mailing list