[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-arm] [PATCH v3 4/7] target/arm: add "cortex-m0" CPU model
From: |
Peter Maydell |
Subject: |
Re: [Qemu-arm] [PATCH v3 4/7] target/arm: add "cortex-m0" CPU model |
Date: |
Mon, 30 Jul 2018 18:52:29 +0100 |
On 25 July 2018 at 09:59, Stefan Hajnoczi <address@hidden> wrote:
> Define a "cortex-m0" ARMv6-M CPU model.
>
> Most of the register reset values set by other CPU models are not
> relevant for the cut-down ARMv6-M architecture.
>
> Signed-off-by: Stefan Hajnoczi <address@hidden>
> ---
> target/arm/cpu.c | 11 +++++++++++
> 1 file changed, 11 insertions(+)
>
> diff --git a/target/arm/cpu.c b/target/arm/cpu.c
> index 3848ef46aa..7e477c0d23 100644
> --- a/target/arm/cpu.c
> +++ b/target/arm/cpu.c
> @@ -1255,6 +1255,15 @@ static void arm11mpcore_initfn(Object *obj)
> cpu->reset_auxcr = 1;
> }
>
> +static void cortex_m0_initfn(Object *obj)
> +{
> + ARMCPU *cpu = ARM_CPU(obj);
> + set_feature(&cpu->env, ARM_FEATURE_V6);
> + set_feature(&cpu->env, ARM_FEATURE_M);
> +
> + cpu->midr = 0x410cc200;
> +}
We have all the patches for turning off not-v6M bits of
behaviour either in master or in target-arm.for-3.1 already,
right?
Reviewed-by: Peter Maydell <address@hidden>
thanks
-- PMM
- Re: [Qemu-arm] [PATCH v3 1/7] hw/arm: rename armv7m_load_kernel(), (continued)
- [Qemu-arm] [PATCH v3 2/7] hw/arm: rename TYPE_ARMV7M to TYPE_ARM_M_PROFILE, Stefan Hajnoczi, 2018/07/25
- [Qemu-arm] [PATCH v3 3/7] hw/arm: make bitbanded IO optional on ARM M Profile, Stefan Hajnoczi, 2018/07/25
- [Qemu-arm] [PATCH v3 4/7] target/arm: add "cortex-m0" CPU model, Stefan Hajnoczi, 2018/07/25
- [Qemu-arm] [PATCH v3 5/7] loader: add rom transaction API, Stefan Hajnoczi, 2018/07/25
- [Qemu-arm] [PATCH v3 6/7] loader: Implement .hex file loader, Stefan Hajnoczi, 2018/07/25
- [Qemu-arm] [PATCH v3 7/7] Add QTest testcase for the Intel Hexadecimal, Stefan Hajnoczi, 2018/07/25
- Re: [Qemu-arm] [Qemu-devel] [PATCH v3 0/7] arm: add Cortex M0 CPU model and hex file loader, Stefan Hajnoczi, 2018/07/25