11 static EFI_STATUS devicetree_allocate(struct devicetree_state *state, UINTN size) {  in devicetree_allocate()  argument
15         assert(state);  in devicetree_allocate()
17         err = BS->AllocatePages(AllocateAnyPages, EfiACPIReclaimMemory, pages, &state->addr);  in devicetree_allocate()
21         state->pages = pages;  in devicetree_allocate()
25 static UINTN devicetree_allocated(const struct devicetree_state *state) {  in devicetree_allocated()  argument
26         assert(state);  in devicetree_allocated()
27         return state->pages * EFI_PAGE_SIZE;  in devicetree_allocated()
30 static EFI_STATUS devicetree_fixup(struct devicetree_state *state, UINTN len) {  in devicetree_fixup()  argument
35         assert(state);  in devicetree_fixup()
42         size = devicetree_allocated(state);  in devicetree_fixup()
43         err = fixup->Fixup(fixup, PHYSICAL_ADDRESS_TO_POINTER(state->addr), &size,  in devicetree_fixup()
46                 EFI_PHYSICAL_ADDRESS oldaddr = state->addr;  in devicetree_fixup()
47                 UINTN oldpages = state->pages;  in devicetree_fixup()
48                 void *oldptr = PHYSICAL_ADDRESS_TO_POINTER(state->addr);  in devicetree_fixup()
50                 err = devicetree_allocate(state, size);  in devicetree_fixup()
54                 CopyMem(PHYSICAL_ADDRESS_TO_POINTER(state->addr), oldptr, len);  in devicetree_fixup()
59                 size = devicetree_allocated(state);  in devicetree_fixup()
60                 err = fixup->Fixup(fixup, PHYSICAL_ADDRESS_TO_POINTER(state->addr), &size,  in devicetree_fixup()
67 EFI_STATUS devicetree_install(struct devicetree_state *state, EFI_FILE *root_dir, CHAR16 *name) {  in devicetree_install()  argument
73         assert(state);  in devicetree_install()
77         err = LibGetSystemConfigurationTable(&EfiDtbTableGuid, &state->orig);  in devicetree_install()
94         err = devicetree_allocate(state, len);  in devicetree_install()
98         err = handle->Read(handle, &len, PHYSICAL_ADDRESS_TO_POINTER(state->addr));  in devicetree_install()
102         err = devicetree_fixup(state, len);  in devicetree_install()
106 …  return BS->InstallConfigurationTable(&EfiDtbTableGuid, PHYSICAL_ADDRESS_TO_POINTER(state->addr));  in devicetree_install()
109 EFI_STATUS devicetree_install_from_memory(struct devicetree_state *state,  in devicetree_install_from_memory()  argument
114         assert(state);  in devicetree_install_from_memory()
117         err = LibGetSystemConfigurationTable(&EfiDtbTableGuid, &state->orig);  in devicetree_install_from_memory()
121         err = devicetree_allocate(state, dtb_length);  in devicetree_install_from_memory()
125         CopyMem(PHYSICAL_ADDRESS_TO_POINTER(state->addr), dtb_buffer, dtb_length);  in devicetree_install_from_memory()
127         err = devicetree_fixup(state, dtb_length);  in devicetree_install_from_memory()
131 …  return BS->InstallConfigurationTable(&EfiDtbTableGuid, PHYSICAL_ADDRESS_TO_POINTER(state->addr));  in devicetree_install_from_memory()
134 void devicetree_cleanup(struct devicetree_state *state) {  in devicetree_cleanup()  argument
137         if (!state->pages)  in devicetree_cleanup()
140         err = BS->InstallConfigurationTable(&EfiDtbTableGuid, state->orig);  in devicetree_cleanup()
145         BS->FreePages(state->addr, state->pages);  in devicetree_cleanup()
146         state->pages = 0;  in devicetree_cleanup()