[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
@@ -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
 	 =======  ======================================================

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