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| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2022-02-03 01:58:55 +0100 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2022-03-06 13:15:42 +0100 |
| commit | ad7d684dfde391de6fe5c0680f73097072fbf03a (patch) | |
| tree | 4438c3a4296761b37187a6eff152f9a10441e916 /accel/kvm | |
| parent | 5f74af8bab3978b766bdf78255079da3b8a1a888 (diff) | |
| download | qemu-ad7d684dfde391de6fe5c0680f73097072fbf03a.zip qemu-ad7d684dfde391de6fe5c0680f73097072fbf03a.tar.gz qemu-ad7d684dfde391de6fe5c0680f73097072fbf03a.tar.bz2 | |
accel: Introduce AccelOpsClass::cpu_thread_is_idle()
Add cpu_thread_is_idle() to AccelOps, and implement it for the
KVM / WHPX accelerators.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-11-f4bug@amsat.org>
Diffstat (limited to 'accel/kvm')
| -rw-r--r-- | accel/kvm/kvm-accel-ops.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/accel/kvm/kvm-accel-ops.c b/accel/kvm/kvm-accel-ops.c index 7516c67..95b7b08 100644 --- a/accel/kvm/kvm-accel-ops.c +++ b/accel/kvm/kvm-accel-ops.c @@ -74,11 +74,17 @@ static void kvm_start_vcpu_thread(CPUState *cpu) cpu, QEMU_THREAD_JOINABLE); } +static bool kvm_vcpu_thread_is_idle(CPUState *cpu) +{ + return !kvm_halt_in_kernel(); +} + static void kvm_accel_ops_class_init(ObjectClass *oc, void *data) { AccelOpsClass *ops = ACCEL_OPS_CLASS(oc); ops->create_vcpu_thread = kvm_start_vcpu_thread; + ops->cpu_thread_is_idle = kvm_vcpu_thread_is_idle; ops->synchronize_post_reset = kvm_cpu_synchronize_post_reset; ops->synchronize_post_init = kvm_cpu_synchronize_post_init; ops->synchronize_state = kvm_cpu_synchronize_state; |