On 04.02.25 21:26, Jason Gunthorpe wrote:
On Tue, Feb 04, 2025 at 09:05:47PM +0100, David Hildenbrand wrote:
Fully agreed, this is going into the right direction. Dumping what's mapped
is a different story. Maybe that dumping logic could simply be written in C
for the time being?
?
Isn't dumping just a
decode pte -> phys_to_virt() -> for_each_u64(virt) -> printk?
IIUC, the problematic bit is that you might not have a directmap such
that phys_to_virt() would tell you the whole story.
If you can populate the page table in rust you have to be able to dump
it, surely.
Or do you mean trying to decode the leaf entires into some struct page
detail? Does a GPU need to do that? Agree that would be better as some
C function to take in a KVA instead of a struct page and populate a
string with details about that KVA from the struct page.
Jason
--
Cheers,
David / dhildenb
