]> git.baikalelectronics.ru Git - kernel.git/commit
KVM: arm64: Refactor PMU attribute error handling
authorMarc Zyngier <maz@kernel.org>
Thu, 12 Mar 2020 17:27:36 +0000 (17:27 +0000)
committerMarc Zyngier <maz@kernel.org>
Tue, 29 Sep 2020 13:19:38 +0000 (14:19 +0100)
commit6b127353ecc90e85fb16503840b69f85ef82a110
tree87b6dcf13dd8fa6d939dd882443b436efb589dcb
parent9d314c4d53fdbaeff121a0893324d08cb4107329
KVM: arm64: Refactor PMU attribute error handling

The PMU emulation error handling is pretty messy when dealing with
attributes. Let's refactor it so that we have less duplication,
and that it is easy to extend later on.

A functional change is that kvm_arm_pmu_v3_init() used to return
-ENXIO when the PMU feature wasn't set. The error is now reported
as -ENODEV, matching the documentation. -ENXIO is still returned
when the interrupt isn't properly configured.

Signed-off-by: Marc Zyngier <maz@kernel.org>
arch/arm64/kvm/pmu-emul.c