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From: "Alex Bennée" <alex.bennee@linaro.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: qemu-devel@nongnu.org,  imammedo@redhat.com,
	richard.henderson@linaro.org,  peterx@redhat.com
Subject: Re: [PATCH 6/8] cpus: properly kick CPUs out of inner execution loop
Date: Mon, 11 Aug 2025 13:56:21 +0100	[thread overview]
Message-ID: <875xeuc8zu.fsf@draig.linaro.org> (raw)
In-Reply-To: <20250808185905.62776-7-pbonzini@redhat.com> (Paolo Bonzini's message of "Fri, 8 Aug 2025 20:59:03 +0200")

Paolo Bonzini <pbonzini@redhat.com> writes:

> Now that cpu_exit() actually kicks all accelerators, use it whenever
> the message to another thread is processed in qemu_wait_io_event()
>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
<snip>
> --- a/hw/ppc/spapr_hcall.c
> +++ b/hw/ppc/spapr_hcall.c
> @@ -509,8 +509,8 @@ static target_ulong h_cede(PowerPCCPU *cpu, SpaprMachineState *spapr,
>      if (!cpu_has_work(cs)) {
>          cs->halted = 1;
>          cs->exception_index = EXCP_HLT;
> -        qatomic_set(&cs->exit_request, 1);
>          ppc_maybe_interrupt(env);
> +        cpu_exit(env);

Should be cs

>      }
>  
>      return H_SUCCESS;
> @@ -531,8 +531,8 @@ static target_ulong h_confer_self(PowerPCCPU *cpu)
>      }
>      cs->halted = 1;
>      cs->exception_index = EXCP_HALTED;
> -    qatomic_set(&cs->exit_request, 1);
>      ppc_maybe_interrupt(&cpu->env);
> +    cpu_exit(&cpu->env);

Should be cs

<snip>

-- 
Alex Bennée
Virtualisation Tech Lead @ Linaro


  reply	other threads:[~2025-08-11 12:57 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-08 18:58 [PATCH 0/8] accel, cpus: clean up cpu->exit_request Paolo Bonzini
2025-08-08 18:58 ` [PATCH 1/8] accel: use store_release/load_acquire for cross-thread exit_request Paolo Bonzini
2025-08-09 22:41   ` Richard Henderson
2025-08-11 19:31   ` Peter Xu
2025-08-08 18:58 ` [PATCH 2/8] accel/hvf: check exit_request before running the vCPU Paolo Bonzini
2025-08-08 21:28   ` Philippe Mathieu-Daudé
2025-08-09 23:09   ` Richard Henderson
2025-08-11  7:06     ` Paolo Bonzini
2025-08-08 18:59 ` [PATCH 3/8] accel: use atomic accesses for exit_request Paolo Bonzini
2025-08-08 21:04   ` Philippe Mathieu-Daudé
2025-08-09 23:10   ` Richard Henderson
2025-08-11 14:49   ` Alex Bennée
2025-08-11 19:33   ` Peter Xu
2025-08-08 18:59 ` [PATCH 4/8] accel/tcg: introduce tcg_kick_vcpu_thread Paolo Bonzini
2025-08-08 21:15   ` Philippe Mathieu-Daudé
2025-08-09 23:16     ` Richard Henderson
2025-08-09 23:26   ` Richard Henderson
2025-08-11  6:10     ` Paolo Bonzini
2025-08-11  8:33       ` Philippe Mathieu-Daudé
2025-08-11 13:34         ` Philippe Mathieu-Daudé
2025-08-08 18:59 ` [PATCH 5/8] cpus: remove TCG-ism from cpu_exit() Paolo Bonzini
2025-08-08 21:17   ` Philippe Mathieu-Daudé
2025-08-09 23:17   ` Richard Henderson
2025-08-08 18:59 ` [PATCH 6/8] cpus: properly kick CPUs out of inner execution loop Paolo Bonzini
2025-08-11 12:56   ` Alex Bennée [this message]
2025-08-08 18:59 ` [PATCH 7/8] tcg/user: do not set exit_request gratuitously Paolo Bonzini
2025-08-08 21:21   ` Philippe Mathieu-Daudé
2025-08-08 21:45     ` Paolo Bonzini
2025-08-08 18:59 ` [PATCH 8/8] accel: make all calls to qemu_wait_io_event look the same Paolo Bonzini
2025-08-08 21:24   ` Philippe Mathieu-Daudé
2025-08-09 23:34   ` Richard Henderson

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