Re: [PATCH v2] target-i386: Walk NPT in guest real mode

2024-09-20 Thread Richard Henderson
On 9/20/24 18:10, Alexander Graf wrote: +/* No paging (real mode), let's assemble a fake 1:1 1GiB PTE */ Comment is out of date. :-) Otherwise, Reviewed-by: Richard Henderson r~

[PATCH v2] target-i386: Walk NPT in guest real mode

2024-09-20 Thread Alexander Graf
When translating virtual to physical address with a guest CPU that supports nested paging (NPT), we need to perform every page table walk access indirectly through the NPT, which we correctly do. However, we treat real mode (no page table walk) special: In that case, we currently just skip any wal