On 29.07.2025 10:38, Juergen Gross wrote: > --- a/arch/x86/mm.c > +++ b/arch/x86/mm.c > @@ -640,13 +640,20 @@ void change_readonly(bool readonly) > /* > * return a valid PTE for a given virtual address. If PTE does not exist, > * allocate page-table pages. > + * Provide a small pool for allocating some page tables very early. Those are > + * needed currently for mapping the shared info page, so 2 pages ought to be > + * enough. Add one spare page anyway. > */
Hmm, 2 pages plus one spare doesn't yield ... > +static char early_pt[4][PAGE_SIZE] __attribute__((aligned(PAGE_SIZE))); ... 4. Was 2 a typo, and 3 was meant? (Which, just to mention it, then isn't correct for 32-bit aiui.) Whatever adjustment wants making - happy to do so while committing. Just need to know which way. Then Reviewed-by: Jan Beulich <jbeul...@suse.com> Jan
