LoongArch: KVM: Add paravirt preempt feature in hypervisor side

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Feature KVM_FEATURE_PREEMPT is added to show whether vCPU is preempted
or not. It is to help guest OS scheduling or lock checking etc. Here
add KVM_FEATURE_PREEMPT feature and use one byte as preempted flag in
the steal time structure.

Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

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Bibo Mao 2026-02-06 09:28:01 +08:00 • committed by Huacai Chen

parent 2faec60a48

commit 9b486cdd03

6 changed files with 62 additions and 2 deletions

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2

arch/loongarch/include/asm/kvm_host.h

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4

arch/loongarch/include/asm/kvm_para.h

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1

arch/loongarch/include/uapi/asm/kvm.h

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1

arch/loongarch/include/uapi/asm/kvm_para.h

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arch/loongarch/kvm/vcpu.c

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arch/loongarch/kvm/vm.c

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