From ad7d684dfde391de6fe5c0680f73097072fbf03a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Thu, 3 Feb 2022 01:58:55 +0100 Subject: accel: Introduce AccelOpsClass::cpu_thread_is_idle() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add cpu_thread_is_idle() to AccelOps, and implement it for the KVM / WHPX accelerators. Suggested-by: Richard Henderson Reviewed-by: Paolo Bonzini Reviewed-by: Richard Henderson Signed-off-by: Philippe Mathieu-Daudé Message-Id: <20220207075426.81934-11-f4bug@amsat.org> --- accel/kvm/kvm-accel-ops.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'accel/kvm') 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; -- cgit v1.1