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Differential D40244 Diff 123836 sys/amd64/amd64/efirt_machdep.c

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sys/amd64/amd64/efirt_machdep.c

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#include <machine/vmparam.h> #include <machine/vmparam.h>
#include <vm/vm.h> #include <vm/vm.h>
#include <vm/pmap.h> #include <vm/pmap.h>
#include <vm/vm_extern.h> #include <vm/vm_extern.h>
#include <vm/vm_map.h> #include <vm/vm_map.h>
#include <vm/vm_object.h> #include <vm/vm_object.h>
#include <vm/vm_page.h> #include <vm/vm_page.h>
#include <vm/vm_pager.h> #include <vm/vm_pager.h>
#include <vm/vm_param.h>
static pml5_entry_t *efi_pml5; static pml5_entry_t *efi_pml5;
static pml4_entry_t *efi_pml4; static pml4_entry_t *efi_pml4;
static vm_object_t obj_1t1_pt; static vm_object_t obj_1t1_pt;
static vm_page_t efi_pmltop_page; static vm_page_t efi_pmltop_page;
static vm_pindex_t efi_1t1_idx; static vm_pindex_t efi_1t1_idx;
void void
Show All 16 Linesefi_destroy_1t1_map(void)
efi_pmltop_page = NULL; efi_pmltop_page = NULL;
} }
/* /*
* Map a physical address from EFI runtime space into KVA space. Returns 0 to * Map a physical address from EFI runtime space into KVA space. Returns 0 to
* indicate a failed mapping so that the caller may handle error. * indicate a failed mapping so that the caller may handle error.
*/ */
vm_offset_t vm_offset_t
efi_phys_to_kva(vm_paddr_t paddr) efi_phys_to_kva(vm_paddr_t paddr, vm_size_t size)
{ {
if (paddr >= dmaplimit) if (PHYS_SZ_IN_DMAP(paddr, size))
return (0);
return (PHYS_TO_DMAP(paddr)); return (PHYS_TO_DMAP(paddr));
return (0);
} }
static vm_page_t static vm_page_t
efi_1t1_page(void) efi_1t1_page(void)
{ {
return (vm_page_grab(obj_1t1_pt, efi_1t1_idx++, VM_ALLOC_NOBUSY | return (vm_page_grab(obj_1t1_pt, efi_1t1_idx++, VM_ALLOC_NOBUSY |
VM_ALLOC_WIRED | VM_ALLOC_ZERO)); VM_ALLOC_WIRED | VM_ALLOC_ZERO));
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