02c2433b3a
Introduce CONFIG_PARAVIRT and PARAVIRT_TIME_ACCOUNTING on ARM. The only paravirt interface supported is pv_time_ops.steal_clock, so no runtime pvops patching needed. This allows us to make use of steal_account_process_tick for stolen ticks accounting. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Christopher Covington <cov@codeaurora.org> Acked-by: Ian Campbell <ian.campbell@citrix.com> Acked-by: Russell King <linux@arm.linux.org.uk>
21 lines
415 B
C
21 lines
415 B
C
#ifndef _ASM_ARM_PARAVIRT_H
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#define _ASM_ARM_PARAVIRT_H
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#ifdef CONFIG_PARAVIRT
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struct static_key;
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extern struct static_key paravirt_steal_enabled;
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extern struct static_key paravirt_steal_rq_enabled;
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struct pv_time_ops {
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unsigned long long (*steal_clock)(int cpu);
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};
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extern struct pv_time_ops pv_time_ops;
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static inline u64 paravirt_steal_clock(int cpu)
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{
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return pv_time_ops.steal_clock(cpu);
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}
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#endif
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#endif
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