Le 04/11/2022 à 18:27, Andrew Donnellan a écrit :
> A number of OPAL calls take addresses as arguments (e.g. buffers with
> strings to print, etc). These addresses need to be physical addresses, as
> OPAL runs in real mode.
>
> Since the hardware ignores the top two bits of the address in real m
On Sat, 2022-11-05 at 04:27 +1100, Andrew Donnellan wrote:
> A number of OPAL calls take addresses as arguments (e.g. buffers with
> strings to print, etc). These addresses need to be physical
> addresses, as
> OPAL runs in real mode.
>
> Since the hardware ignores the top two bits of the address
A number of OPAL calls take addresses as arguments (e.g. buffers with
strings to print, etc). These addresses need to be physical addresses, as
OPAL runs in real mode.
Since the hardware ignores the top two bits of the address in real mode,
passing addresses in the kernel's linear map works fine e
