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efi_loader: EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE

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Implement the EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE event.

This requires allocating the event and the event list from runtime data.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Heinrich Schuchardt 2019-07-11 20:15:09 +02:00
parent 961856031a
commit 14b40487ab
2 changed files with 31 additions and 8 deletions
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14
lib/efi_loader/efi_runtime.c
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@ -391,8 +391,10 @@ efi_status_t __weak __efi_runtime EFIAPI efi_set_time(struct efi_time *time)
*/
static bool efi_is_runtime_service_pointer(void *p)
{
return p >= (void *)&efi_runtime_services.get_time &&
p <= (void *)&efi_runtime_services.query_variable_info;
return (p >= (void *)&efi_runtime_services.get_time &&
p <= (void *)&efi_runtime_services.query_variable_info) ||
p == (void *)&efi_events.prev ||
p == (void *)&efi_events.next;
}
/**
@ -577,6 +579,7 @@ static efi_status_t EFIAPI efi_set_virtual_address_map(
int n = memory_map_size / descriptor_size;
int i;
int rt_code_sections = 0;
struct efi_event *event;
EFI_ENTRY("%lx %lx %x %p", memory_map_size, descriptor_size,
descriptor_version, virtmap);
@ -610,6 +613,13 @@ static efi_status_t EFIAPI efi_set_virtual_address_map(
return EFI_EXIT(EFI_INVALID_PARAMETER);
}
/* Notify EVT_SIGNAL_VIRTUAL_ADDRESS_CHANGE */
list_for_each_entry(event, &efi_events, link) {
if (event->notify_function)
EFI_CALL_VOID(event->notify_function(
event, event->notify_context));
}
/* Rebind mmio pointers */
for (i = 0; i < n; i++) {
struct efi_mem_desc *map = (void*)virtmap +