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amd64 efirt: initialize vm_pages backing EFI runtime memory

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so that PHYS_TO_VM_PAGE() and consequently physcopyin() work for them

Reviewed by:	markj
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D30785
This commit is contained in:
Konstantin Belousov 2021-06-16 04:59:06 +03:00
parent 5b10e79edb
commit 0247c33e89
1 changed files with 9 additions and 0 deletions
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9
sys/amd64/amd64/efirt_machdep.c
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@ -180,6 +180,7 @@ efi_create_1t1_map(struct efi_md *map, int ndesc, int descsz)
struct efi_md *p;
pt_entry_t *pte;
void *pml;
vm_page_t m;
vm_offset_t va;
uint64_t idx;
int bits, i, mode;
@ -247,6 +248,14 @@ efi_create_1t1_map(struct efi_md *map, int ndesc, int descsz)
va += PAGE_SIZE) {
pte = efi_1t1_pte(va);
pte_store(pte, va | bits);
m = PHYS_TO_VM_PAGE(va);
if (m != NULL && VM_PAGE_TO_PHYS(m) == 0) {
vm_page_init_page(m, va, -1);
m->order = VM_NFREEORDER + 1; /* invalid */
m->pool = VM_NFREEPOOL + 1; /* invalid */
pmap_page_set_memattr(m, mode);
}
}
VM_OBJECT_WUNLOCK(obj_1t1_pt);
}