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vmm: only use KVM_ARM_VCPU_PMU_V3 if available

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Having PMU in guests isn't critical, and not all hardware supports
it (e.g. Apple Silicon).

CpuManager::init_pmu already has a fallback for if PMU is not
supported by the VCPU, but we weren't getting that far, because we
would always try to initialise the VCPU with KVM_ARM_VCPU_PMU_V3, and
then bail when it returned with EINVAL.

Signed-off-by: Alyssa Ross <hi@alyssa.is>
This commit is contained in:
Alyssa Ross
2023-04-10 11:11:46 +00:00
committed by Bo Chen
parent 27f5016ad3
commit 1fc969d37a
4 changed files with 13 additions and 4 deletions
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Cargo.toml
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@@ -44,6 +44,7 @@ clap = { version = "4.0.29", features = ["cargo"] }
# List of patched crates
[patch.crates-io]
kvm-bindings = { git = "https://github.com/cloud-hypervisor/kvm-bindings", branch = "ch-v0.6.0-tdx" }
kvm-ioctls = { git = "https://github.com/rust-vmm/kvm-ioctls", branch = "main" }
versionize_derive = { git = "https://github.com/cloud-hypervisor/versionize_derive", branch = "ch" }
[dev-dependencies]