On Mon, 6 Nov 2023 18:08:02 +0100 Nico Boehr <nrb@xxxxxxxxxxxxx> wrote: > The addresses reported for the partial execution of mvpg instruction are > physical addresses. Now that MSO is a virtual address, we can't simply > compare the PEI fields in the sie block with MSO, but need to do an > additional translation step. > > Add the necessary virtual-physical translations and expose the > virt_to_pte_phys() function in mmu.h which is useful for this kind of > translation. > > Signed-off-by: Nico Boehr <nrb@xxxxxxxxxxxxx> > --- > lib/s390x/mmu.h | 2 ++ > s390x/mvpg-sie.c | 15 +++++++++++---- > 2 files changed, 13 insertions(+), 4 deletions(-) > > diff --git a/lib/s390x/mmu.h b/lib/s390x/mmu.h > index dadc2e600f9a..e9e837236603 100644 > --- a/lib/s390x/mmu.h > +++ b/lib/s390x/mmu.h > @@ -95,4 +95,6 @@ static inline void unprotect_page(void *vaddr, unsigned long prot) > > void *get_dat_entry(pgd_t *pgtable, void *vaddr, enum pgt_level level); > > +phys_addr_t virt_to_pte_phys(pgd_t *pgtable, void *vaddr); or just #include <vmalloc.h> ? [...]
