[RFC PATCH 33/36] arm64/efi: Add ALLINT to IRQ flags checks

[Jinjie Ruan]

On 7/9/2026 8:13 PM, Vladimir Murzin wrote:
> EFI is not expected to modify PSTATE.ALLINT, so check that it remains
> unchanged across EFI runtime calls.
> 
> Signed-off-by: Vladimir Murzin <vladimir.murzin at arm.com>
> ---
>  arch/arm64/include/asm/efi.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
> index 479741d52c90..ea8403c7bdaf 100644
> --- a/arch/arm64/include/asm/efi.h
> +++ b/arch/arm64/include/asm/efi.h
> @@ -78,6 +78,10 @@ do {															\
>  		pr_err_ratelimited(FW_BUG "DAIF+PMR corrupted (0x%x + 0x%x=>0x%x + 0x%x) by EFI call from %pS\n",	\
>  				   __expected.daif, __expected.pmr, __actual.daif, __actual.pmr,			\
>  				   caller ?: __builtin_return_address(0));						\
> +	} else if (system_uses_nmi()) {											\
> +		pr_err_ratelimited(FW_BUG "DAIF+ALLINT corrupted (0x%x + 0x%x=>0x%x + 0x%x) by EFI call from %pS\n",	\
> +				   __expected.daif, __expected.allint, __actual.daif, __actual.allint,			\
> +				   caller ?: __builtin_return_address(0));						\

Reviewed-by: Jinjie Ruan <ruanjinjie at huawei.com>

>  	} else {													\
>  		pr_err_ratelimited(FW_BUG "DAIF corrupted (0x%x=>0x%x) by EFI call from %pS\n",				\
>  				   __expected.daif, __actual.daif,							\