Thanks for the patch!
Reviewed-By: Samer El-Haj-Mahmoud <samer.el-haj-mahm...@arm.com>
> -----Original Message-----
> From: Grzegorz Bernacki <g...@semihalf.com>
> Sent: Wednesday, August 18, 2021 3:38 AM
> To: devel@edk2.groups.io
> Cc: l...@nuviainc.com; ardb+tianoc...@kernel.org; Samer El-Haj-Mahmoud
> <samer.el-haj-mahm...@arm.com>; Sunny Wang
> <sunny.w...@arm.com>; m...@semihalf.com; upstr...@semihalf.com;
> p...@akeo.ie; Grzegorz Bernacki <g...@semihalf.com>
> Subject: [edk2-platforms PATCH] Platform/RaspberryPi: Check for Boot
> Discovery Policy change.
>
> 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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