On 07/06/2024 19:00, Tom Rini wrote:
On Fri, Jun 07, 2024 at 06:51:20PM +0200, Caleb Connolly wrote:
Add a basic software implementation of the ARM64 pagetable walker. This
can be used for debugging U-Boot's pagetable, as well as dumping the
pagetable from the previous bootloader stage if it used one (by reading
out the ttbr address).
One can either call dump_pagetable() to print the pagetable to the
console with the default formatter, or implement their own pagetable
handler using walke_pagetable() with a custom pte_walker_cb_t callback.
Signed-off-by: Caleb Connolly <caleb.conno...@linaro.org>
---
arch/arm/cpu/armv8/cache_v8.c | 202 +++++++++++++++++++++++++++++++++++++++
arch/arm/include/asm/armv8/mmu.h | 55 +++++++++++
2 files changed, 257 insertions(+)
So, I assume that by default, all of this gets discarded as unused code
and that's why it's not behind a Kconfig. Next, please add something
Yes, a basic "strings" check on the U-Boot binary suggests this is the case.
under maybe doc/arch/ or doc/develop (I'm honestly not sure which is
best) that documents all of this. Thanks!
Sure, will try and find a suitable place for it.
--
// Caleb (they/them)
