RISC-V: KVM: move preempt_disable() call in kvm_arch_vcpu_ioctl_run

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local_irq_disable provides stronger guarantees than preempt_disable so
calling the latter is redundant when interrupts are disabled. Instead,
explicitly disable preemption right before interrupts are enabled/disabled
to ensure that the time accounted in guest_timing_exit_irqoff
includes time taken by the guest or interrupts.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Anup Patel <anup@brainfault.org>

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Nikolay Borisov 2022-07-29 17:14:34 +05:30 • committed by Anup Patel

parent cca986fab9

commit fe283e5fa1

1 changed files with 2 additions and 3 deletions

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arch/riscv/kvm/vcpu.c

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