Re: [PATCH v2 2/4] xen/arm: split is_32bit/64bit_domain() between arm64/arm32

[Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>]

Grygorii Strashko <grygorii_strashko@epam.com> writes:

> From: Grygorii Strashko <grygorii_strashko@epam.com>
>
> Split is_32bit/64bit_domain() macro implementations between arm64/arm32.
>
> Signed-off-by: Grygorii Strashko <grygorii_strashko@epam.com>

Reviewed-by: Volodymyr Babchuk <volodymyr_babchuk@epam.com>

> ---
> v2:
> - fix comments related to macro parameters evaluation issues
>
>  xen/arch/arm/include/asm/arm32/domain.h | 20 +++++++++++++++++
>  xen/arch/arm/include/asm/arm64/domain.h | 29 +++++++++++++++++++++++++
>  xen/arch/arm/include/asm/domain.h       |  7 +++---
>  3 files changed, 52 insertions(+), 4 deletions(-)
>  create mode 100644 xen/arch/arm/include/asm/arm32/domain.h
>  create mode 100644 xen/arch/arm/include/asm/arm64/domain.h
>
> diff --git a/xen/arch/arm/include/asm/arm32/domain.h b/xen/arch/arm/include/asm/arm32/domain.h
> new file mode 100644
> index 000000000000..1bd0735c9194
> --- /dev/null
> +++ b/xen/arch/arm/include/asm/arm32/domain.h
> @@ -0,0 +1,20 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +
> +#ifndef ARM_ARM32_DOMAIN_H
> +#define ARM_ARM32_DOMAIN_H
> +
> +/* Arm32 always runs guests in AArch32 mode */
> +
> +#define is_32bit_domain(d) ((void)(d), 1)
> +#define is_64bit_domain(d) ((void)(d), 0)
> +
> +#endif /* ARM_ARM32_DOMAIN_H */
> +
> +/*
> + * Local variables:
> + * mode: C
> + * c-file-style: "BSD"
> + * c-basic-offset: 4
> + * indent-tabs-mode: nil
> + * End:
> + */
> diff --git a/xen/arch/arm/include/asm/arm64/domain.h b/xen/arch/arm/include/asm/arm64/domain.h
> new file mode 100644
> index 000000000000..1a2d73950bf0
> --- /dev/null
> +++ b/xen/arch/arm/include/asm/arm64/domain.h
> @@ -0,0 +1,29 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +
> +#ifndef ARM_ARM64_DOMAIN_H
> +#define ARM_ARM64_DOMAIN_H
> +
> +/*
> + * Returns true if guest execution state is AArch32
> + *
> + * @d: pointer to the domain structure
> + */
> +#define is_32bit_domain(d) ((d)->arch.type == DOMAIN_32BIT)
> +
> +/*
> + * Returns true if guest execution state is AArch64
> + *
> + * @d: pointer to the domain structure
> + */
> +#define is_64bit_domain(d) ((d)->arch.type == DOMAIN_64BIT)
> +
> +#endif /* ARM_ARM64_DOMAIN_H */
> +
> +/*
> + * Local variables:
> + * mode: C
> + * c-file-style: "BSD"
> + * c-basic-offset: 4
> + * indent-tabs-mode: nil
> + * End:
> + */
> diff --git a/xen/arch/arm/include/asm/domain.h b/xen/arch/arm/include/asm/domain.h
> index a3487ca71303..dde48178b857 100644
> --- a/xen/arch/arm/include/asm/domain.h
> +++ b/xen/arch/arm/include/asm/domain.h
> @@ -22,11 +22,10 @@ enum domain_type {
>      DOMAIN_32BIT,
>      DOMAIN_64BIT,
>  };
> -#define is_32bit_domain(d) ((d)->arch.type == DOMAIN_32BIT)
> -#define is_64bit_domain(d) ((d)->arch.type == DOMAIN_64BIT)
> +
> +# include <asm/arm64/domain.h>
>  #else
> -#define is_32bit_domain(d) (1)
> -#define is_64bit_domain(d) (0)
> +# include <asm/arm32/domain.h>
>  #endif
>  
>  /*

-- 
WBR, Volodymyr