On Mon, Feb 14, 2022 at 9:55 AM HAGIO KAZUHITO(萩尾 一仁) <k-hagio-ab@xxxxxxx> wrote:
-----Original Message-----
> We can get VA_BITS_ACTUAL from CONFIG_ARM64_VA_BITS by guess.
>
> Without this patch, we may need to use "--machdep vabits_actual=48" to
> set the VA_BITS_ACTUAL.
>
> Signed-off-by: Huang Shijie <shijie@xxxxxxxxxxxxxxxxxxxxxx>
> ---
> v1 --> v2:
> Remove the DISKDUMP limit.
Thanks for the v2 patch, it looks good to me.
Acked-by: Kazuhito Hagio <k-hagio-ab@xxxxxxx>
Thank you for the improvement, Shijie. For the v2, applied.
> ---
> arm64.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/arm64.c b/arm64.c
> index 4f2c2b5..de1038a 100644
> --- a/arm64.c
> +++ b/arm64.c
> @@ -4170,6 +4170,11 @@ arm64_calc_VA_BITS(void)
> } else if (machdep->machspec->VA_BITS_ACTUAL) {
> machdep->machspec->VA_BITS = machdep->machspec->VA_BITS_ACTUAL;
> machdep->machspec->VA_START = _VA_START(machdep->machspec->VA_BITS_ACTUAL);
> + } else if (machdep->machspec->CONFIG_ARM64_VA_BITS) {
> + /* guess */
> + machdep->machspec->VA_BITS_ACTUAL =
> machdep->machspec->CONFIG_ARM64_VA_BITS;
> + machdep->machspec->VA_BITS = machdep->machspec->CONFIG_ARM64_VA_BITS;
> + machdep->machspec->VA_START = _VA_START(machdep->machspec->VA_BITS_ACTUAL);
> } else
> error(FATAL, "cannot determine VA_BITS_ACTUAL\n");
> }
> --
> 2.30.2
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