fix(aarch64): re-apply CLIDR_EL1 after PSCI CPU_ON - #6141
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BetterAndBetterII wants to merge 2 commits into
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fix(aarch64): re-apply CLIDR_EL1 after PSCI CPU_ON#6141BetterAndBetterII wants to merge 2 commits into
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Secondary vCPUs are created powered-off and started via PSCI CPU_ON, which makes KVM reset the target and restore a fabricated CLIDR_EL1. Store the DT-consistent override and write it again after vCPU reset and when a secondary becomes runnable, so all vCPUs keep the same cache topology. Signed-off-by: Chiikawa <chiikawa0077@gmail.com> Co-authored-by: Yuzhong Zhang <BetterAndBetterII@users.noreply.github.com>
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Secondary vCPUs are created powered-off and started via PSCI CPU_ON. KVM then resets the target and restores a fabricated CLIDR_EL1, so only vCPU0 keeps the DT-consistent override. Guests see an asymmetric cache topology and Linux disables load balancing.
Store the boot-time CLIDR override and write it again after
KVM_ARM_VCPU_INITand when a secondary becomes runnable, so all vCPUs keep the same cache topology.Fixes #6139