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authorShanker Donthineni <[email protected]>2018-02-19 09:38:07 -0600
committerChristoffer Dall <[email protected]>2018-02-26 10:48:02 +0100
commit250be9d61cf8898b1eea140fa31fe7713c49e989 (patch)
tree2c0988d8b3d131ddae9c0ef6a20e78310bbe729f /tools/perf/scripts/python/syscall-counts.py
parentb9fb17395b956079e2c3961a310f6a961a7de6e6 (diff)
KVM: arm/arm64: No need to zero CNTVOFF in kvm_timer_vcpu_put() for VHE
In AArch64/AArch32, the virtual counter uses a fixed virtual offset of zero in the following situations as per ARMv8 specifications: 1) HCR_EL2.E2H is 1, and CNTVCT_EL0/CNTVCT are read from EL2. 2) HCR_EL2.{E2H, TGE} is {1, 1}, and either: — CNTVCT_EL0 is read from Non-secure EL0 or EL2. — CNTVCT is read from Non-secure EL0. So, no need to zero CNTVOFF_EL2/CNTVOFF for VHE case. Acked-by: Marc Zyngier <[email protected]> Acked-by: Christoffer Dall <[email protected]> Signed-off-by: Shanker Donthineni <[email protected]> Signed-off-by: Christoffer Dall <[email protected]>
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