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Re: [PATCH] target/arm: Make '-cpu max' have a 48-bit PA

From: Richard Henderson
Subject: Re: [PATCH] target/arm: Make '-cpu max' have a 48-bit PA
Date: Thu, 1 Oct 2020 12:14:05 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0

On 10/1/20 11:01 AM, Peter Maydell wrote:
> QEMU supports a 48-bit physical address range, but we don't currently
> expose it in the '-cpu max' ID registers (you get the same range as
> Cortex-A57, which is 44 bits).
> Set the ID_AA64MMFR0.PARange field to indicate 48 bits.
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
> I forget why I wanted this patch originally, it's been so long
> since I wrote it, but it seems like a useful thing to allow -cpu max
> to have a big PA range...
> ---
>  target/arm/cpu64.c | 4 ++++
>  1 file changed, 4 insertions(+)

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

Were you by chance looking at some of the optional v8.2 extensions, one of
which is a 52-bit VA, and noticed this nit?


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