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When guest CPU PM is enabled, and with -cpu host, expose the host CPU MWAIT leaf in the CPUID so guest can make good PM decisions. Note: the result is 100% CPU utilization reported by host as host no longer knows that the CPU is halted. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20180622192148.178309-3-mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
38 lines
503 B
C
38 lines
503 B
C
#include "qemu/osdep.h"
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#include "qemu-common.h"
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#include "qom/cpu.h"
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#include "sysemu/replay.h"
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#include "sysemu/sysemu.h"
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bool enable_cpu_pm = false;
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void cpu_resume(CPUState *cpu)
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{
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}
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void qemu_init_vcpu(CPUState *cpu)
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{
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}
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/* User mode emulation does not support record/replay yet. */
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bool replay_exception(void)
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{
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return true;
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}
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bool replay_has_exception(void)
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{
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return false;
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}
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bool replay_interrupt(void)
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{
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return true;
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}
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bool replay_has_interrupt(void)
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{
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return false;
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}
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