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* The EFI variable anti-bricking algorithm merged in -rc8 broke booting 

on some Apple machines because they implement EFI spec 1.10, which
    doesn't provide a QueryVariableInfo() runtime function and the logic
    used to check for the existence of that function was insufficient.
    Fix from Josh Boyer.
 
  * The anti-bricking algorithm also introduced a compiler warning on
    32-bit. Fix from Borislav Petkov.
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Merge tag 'efi-urgent' into x86/urgent

 * The EFI variable anti-bricking algorithm merged in -rc8 broke booting
   on some Apple machines because they implement EFI spec 1.10, which
   doesn't provide a QueryVariableInfo() runtime function and the logic
   used to check for the existence of that function was insufficient.
   Fix from Josh Boyer.

 * The anti-bricking algorithm also introduced a compiler warning on
   32-bit. Fix from Borislav Petkov.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
H. Peter Anvin 2013-04-25 14:00:22 -07:00
parent 0fbd06761f f697036b93
commit 697dfd8844
1 changed files with 2 additions and 2 deletions
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4
arch/x86/boot/compressed/eboot.c
View File

@ -258,7 +258,7 @@ static efi_status_t setup_efi_vars(struct boot_params *params)
u64 store_size, remaining_size, var_size;
efi_status_t status;
if (!sys_table->runtime->query_variable_info)
if (sys_table->runtime->hdr.revision < EFI_2_00_SYSTEM_TABLE_REVISION)
return EFI_UNSUPPORTED;
data = (struct setup_data *)(unsigned long)params->hdr.setup_data;
@ -266,7 +266,7 @@ static efi_status_t setup_efi_vars(struct boot_params *params)
while (data && data->next)
data = (struct setup_data *)(unsigned long)data->next;
status = efi_call_phys4(sys_table->runtime->query_variable_info,
status = efi_call_phys4((void *)sys_table->runtime->query_variable_info,
EFI_VARIABLE_NON_VOLATILE |
EFI_VARIABLE_BOOTSERVICE_ACCESS |
EFI_VARIABLE_RUNTIME_ACCESS, &store_size,