On Mon, Sep 21, 2020 at 5:41 PM Ard Biesheuvel [off-list ref] wrote:

When running in BE mode on LPAE hardware with a PA-to-VA translation
that exceeds 4 GB, we patch bits 39:32 of the offset into the wrong
byte of the opcode. So fix that, by rotating the offset in r0 to the
right by 8 bits, which will put the 8-bit immediate in bits 31:24.

Note that this will also move bit #22 in its correct place when
applying the rotation to the constant #0x400000.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

That's a good catch!
Reviewed-by: Linus Walleij <redacted>

Yours,
Linus Walleij

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