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From: Richard Henderson <richard.henderson@linaro.org>
To: "Philippe Mathieu-Daudé" <philmd@linaro.org>, qemu-devel@nongnu.org
Cc: "Alex Bennée" <alex.bennee@linaro.org>, qemu-arm@nongnu.org
Subject: Re: [PATCH 01/11] cpus: Cache CPUClass early in instance_init() handler
Date: Tue, 21 Jan 2025 07:54:25 -0800	[thread overview]
Message-ID: <e819ed08-db0c-4c6d-a70d-38f17b47846f@linaro.org> (raw)
In-Reply-To: <20250121114056.53949-2-philmd@linaro.org>

On 1/21/25 03:40, Philippe Mathieu-Daudé wrote:
> Cache CPUClass as early as possible, when the instance
> is initialized.
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>   cpu-target.c         | 3 ---
>   hw/core/cpu-common.c | 3 +++
>   2 files changed, 3 insertions(+), 3 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>


r~

> 
> diff --git a/cpu-target.c b/cpu-target.c
> index 667688332c9..89874496a41 100644
> --- a/cpu-target.c
> +++ b/cpu-target.c
> @@ -134,9 +134,6 @@ const VMStateDescription vmstate_cpu_common = {
>   
>   bool cpu_exec_realizefn(CPUState *cpu, Error **errp)
>   {
> -    /* cache the cpu class for the hotpath */
> -    cpu->cc = CPU_GET_CLASS(cpu);
> -
>       if (!accel_cpu_common_realize(cpu, errp)) {
>           return false;
>       }
> diff --git a/hw/core/cpu-common.c b/hw/core/cpu-common.c
> index cb79566cc51..ff605059c15 100644
> --- a/hw/core/cpu-common.c
> +++ b/hw/core/cpu-common.c
> @@ -238,6 +238,9 @@ static void cpu_common_initfn(Object *obj)
>   {
>       CPUState *cpu = CPU(obj);
>   
> +    /* cache the cpu class for the hotpath */
> +    cpu->cc = CPU_GET_CLASS(cpu);
> +
>       gdb_init_cpu(cpu);
>       cpu->cpu_index = UNASSIGNED_CPU_INDEX;
>       cpu->cluster_index = UNASSIGNED_CLUSTER_INDEX;



  reply	other threads:[~2025-01-21 15:55 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-01-21 11:40 [PATCH 00/11] cpus: Prefer cached CpuClass over CPU_GET_CLASS() macro Philippe Mathieu-Daudé
2025-01-21 11:40 ` [PATCH 01/11] cpus: Cache CPUClass early in instance_init() handler Philippe Mathieu-Daudé
2025-01-21 15:54   ` Richard Henderson [this message]
2025-01-21 11:40 ` [PATCH 02/11] cpus: Prefer cached CpuClass over CPU_GET_CLASS() macro Philippe Mathieu-Daudé
2025-01-21 15:55   ` Richard Henderson
2025-01-21 11:40 ` [PATCH 03/11] accel: " Philippe Mathieu-Daudé
2025-01-21 15:56   ` Richard Henderson
2025-01-21 11:40 ` [PATCH 04/11] user: " Philippe Mathieu-Daudé
2025-01-21 15:57   ` Richard Henderson
2025-01-21 11:40 ` [PATCH 05/11] disas: " Philippe Mathieu-Daudé
2025-01-21 15:57   ` Richard Henderson
2025-01-21 11:40 ` [PATCH 06/11] gdbstub: " Philippe Mathieu-Daudé
2025-01-21 12:43   ` Alex Bennée
2025-01-21 15:58   ` Richard Henderson
2025-01-21 11:40 ` [PATCH 07/11] hw/acpi: " Philippe Mathieu-Daudé
2025-01-21 15:58   ` Richard Henderson
2025-01-21 11:40 ` [PATCH 08/11] hw/core/generic-loader: Prefer cached CpuClass over CPU_GET_CLASS macro Philippe Mathieu-Daudé
2025-01-21 18:53   ` Philippe Mathieu-Daudé
2025-01-21 11:40 ` [PATCH 09/11] target/arm: Prefer cached CpuClass over CPU_GET_CLASS() macro Philippe Mathieu-Daudé
2025-01-21 12:43   ` Alex Bennée
2025-01-21 11:40 ` [PATCH 10/11] target/microblaze: " Philippe Mathieu-Daudé
2025-01-21 18:54   ` Philippe Mathieu-Daudé
2025-01-21 11:40 ` [PATCH 11/11] target/openrisc: " Philippe Mathieu-Daudé

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