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Add amd64-specific ddb command 'show phys2dmap', which calculates the

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address in the direct map corresponding to the given physical address.

Reviewed by:	jhb
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
This commit is contained in:
Konstantin Belousov 2013-05-21 11:07:12 +00:00
parent 4fab678be2
commit ea38ca6ea5
1 changed files with 12 additions and 0 deletions
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12
sys/amd64/amd64/pmap.c
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@ -5535,4 +5535,16 @@ DB_SHOW_COMMAND(pte, pmap_print_pte)
pte = pmap_pde_to_pte(pde, va);
db_printf(" pte %#016lx\n", *pte);
}
DB_SHOW_COMMAND(phys2dmap, pmap_phys2dmap)
{
vm_paddr_t a;
if (have_addr) {
a = (vm_paddr_t)addr;
db_printf("0x%jx\n", (uintmax_t)PHYS_TO_DMAP(a));
} else {
db_printf("show phys2dmap addr\n");
}
}
#endif