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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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8ef7f3132e
When the CPU is offline, the timer of LoongArch is not correctly closed. This is harmless for real machines, but resulting in an excessively high cpu usage rate of the offline vCPU thread in the virtual machines. To correctly close the timer, we have made the following modifications: Register the cpu hotplug event (CPUHP_AP_LOONGARCH_ARCH_TIMER_STARTING) for LoongArch. This event's hooks will be called to close the timer when the CPU is offline. Clear the timer interrupt when the timer is turned off. Since before the timer is turned off, there may be a timer interrupt that has already been in the pending state due to the interruption of the disabled, which also affects the halt state of the offline vCPU. Signed-off-by: Xianglai Li <lixianglai@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> |
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| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| cxl | ||
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| dt-bindings | ||
| hyperv | ||
| keys | ||
| kunit | ||
| kvm | ||
| linux | ||
| math-emu | ||
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| misc | ||
| net | ||
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| rv | ||
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| soc | ||
| sound | ||
| target | ||
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| uapi | ||
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| video | ||
| xen | ||
| Kbuild | ||