This patch adds checks if Boot Discovery Policy has been
changed. Only in that case EfiBootManagerRefreshAllBootOption()
should be called.
Signed-off-by: Grzegorz Bernacki <g...@semihalf.com>
---
Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c | 24
+++++++++++++++++++-
1 file changed, 23 insertions(+), 1 deletion(-)
diff --git a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
index c8305ce4f5..378ba0ebf4 100644
--- a/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
+++ b/Platform/RaspberryPi/Library/PlatformBootManagerLib/PlatformBm.c
@@ -617,6 +617,7 @@ BootDiscoveryPolicyHandler (
{
EFI_STATUS Status;
UINT32 DiscoveryPolicy;
+ UINT32 DiscoveryPolicyOld;
UINTN Size;
EFI_BOOT_MANAGER_POLICY_PROTOCOL *BMPolicy;
EFI_GUID *Class;
@@ -678,7 +679,28 @@ BootDiscoveryPolicyHandler (
return Status;
}
- EfiBootManagerRefreshAllBootOption();
+ //
+ // Refresh Boot Options if Boot Discovery Policy has been changed
+ //
+ Size = sizeof (DiscoveryPolicyOld);
+ Status = gRT->GetVariable (
+ BOOT_DISCOVERY_POLICY_OLD_VAR,
+ &gBootDiscoveryPolicyMgrFormsetGuid,
+ NULL,
+ &Size,
+ &DiscoveryPolicyOld
+ );
+ if ((Status == EFI_NOT_FOUND) || (DiscoveryPolicyOld != DiscoveryPolicy)) {
+ EfiBootManagerRefreshAllBootOption();
+
+ Status = gRT->SetVariable (
+ BOOT_DISCOVERY_POLICY_OLD_VAR,
+ &gBootDiscoveryPolicyMgrFormsetGuid,
+ EFI_VARIABLE_NON_VOLATILE |
EFI_VARIABLE_BOOTSERVICE_ACCESS,
+ sizeof (DiscoveryPolicyOld),
+ &DiscoveryPolicy
+ );
+ }
return EFI_SUCCESS;
}
--
2.25.1
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