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efi_loader: notify memory map changes

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When the memory map is changed signal events of the
EFI_EVENT_GROUP_MEMORY_MAP_CHANGE event group.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-06-04 20:55:12 +02:00
parent 8190b4a3e0
commit e80474ad39
1 changed files with 11 additions and 0 deletions
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11
lib/efi_loader/efi_memory.c
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@ -230,6 +230,7 @@ uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
struct efi_mem_list *newlist;
bool carve_again;
uint64_t carved_pages = 0;
struct efi_event *evt;
EFI_PRINT("%s: 0x%llx 0x%llx %d %s\n", __func__,
start, pages, memory_type, overlap_only_ram ? "yes" : "no");
@ -315,6 +316,16 @@ uint64_t efi_add_memory_map(uint64_t start, uint64_t pages, int memory_type,
/* And make sure memory is listed in descending order */
efi_mem_sort();
/* Notify that the memory map was changed */
list_for_each_entry(evt, &efi_events, link) {
if (evt->group &&
!guidcmp(evt->group,
&efi_guid_event_group_memory_map_change)) {
efi_signal_event(evt, false);
break;
}
}
return start;
}