ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf | 5 + ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c | 118 +++++++++++++++++++- 2 files changed, 122 insertions(+), 1 deletion(-)
This commit adds code which check BootDiscoveryPolicy variable and
calls Boot Policy Manager Protocol to connect device specified by
the variable. To enable that mechanism for platform
EfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy PCD must be
added to DSC file and BootDiscoveryPolicyUiLib should be added to
UiApp libraries.
Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Reviewed-by: Sunny Wang <sunny.wang@arm.com>
Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
---
Notes:
v2:
- fix error from CI
v3:
- use local variable DiscoveryPolicy to initialize BootDiscoveryPolicy
- coding style fixes
- run EfiBootManagerRefreshAllBootOption () only if BootDiscoveryPolicy
ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf | 5 +
ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c | 118 +++++++++++++++++++-
2 files changed, 122 insertions(+), 1 deletion(-)
diff --git a/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf b/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
index 353d7a967b..86751b45f8 100644
--- a/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
+++ b/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
@@ -65,11 +65,15 @@
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
+ gEfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy
[Guids]
+ gBootDiscoveryPolicyMgrFormsetGuid
gEdkiiNonDiscoverableEhciDeviceGuid
gEdkiiNonDiscoverableUhciDeviceGuid
gEdkiiNonDiscoverableXhciDeviceGuid
+ gEfiBootManagerPolicyNetworkGuid
+ gEfiBootManagerPolicyConnectAllGuid
gEfiFileInfoGuid
gEfiFileSystemInfoGuid
gEfiFileSystemVolumeLabelInfoIdGuid
@@ -79,6 +83,7 @@
[Protocols]
gEdkiiNonDiscoverableDeviceProtocolGuid
+ gEfiBootManagerPolicyProtocolGuid
gEfiDevicePathProtocolGuid
gEfiGraphicsOutputProtocolGuid
gEfiLoadedImageProtocolGuid
diff --git a/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c b/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
index 5ceb23d822..1e4020487a 100644
--- a/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
+++ b/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
@@ -2,9 +2,10 @@
Implementation for PlatformBootManagerLib library class interfaces.
Copyright (C) 2015-2016, Red Hat, Inc.
- Copyright (c) 2014 - 2019, ARM Ltd. All rights reserved.<BR>
+ Copyright (c) 2014 - 2021, ARM Ltd. All rights reserved.<BR>
Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
+ Copyright (c) 2021, Semihalf All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -19,6 +20,7 @@
#include <Library/UefiBootManagerLib.h>
#include <Library/UefiLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
+#include <Protocol/BootManagerPolicy.h>
#include <Protocol/DevicePath.h>
#include <Protocol/EsrtManagement.h>
#include <Protocol/GraphicsOutput.h>
@@ -27,6 +29,7 @@
#include <Protocol/PciIo.h>
#include <Protocol/PciRootBridgeIo.h>
#include <Protocol/PlatformBootManager.h>
+#include <Guid/BootDiscoveryPolicy.h>
#include <Guid/EventGroup.h>
#include <Guid/NonDiscoverableDevice.h>
#include <Guid/TtyTerm.h>
@@ -703,6 +706,113 @@ HandleCapsules (
#define VERSION_STRING_PREFIX L"Tianocore/EDK2 firmware version "
+/**
+ This functions checks the value of BootDiscoverPolicy variable and
+ connect devices of class specified by that variable. Then it refreshes
+ Boot order for newly discovered boot device.
+
+ @retval EFI_SUCCESS Devices connected successfully or connection
+ not required.
+ @retval others Return values from GetVariable(), LocateProtocol()
+ and ConnectDeviceClass().
+**/
+STATIC
+EFI_STATUS
+BootDiscoveryPolicyHandler (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ UINT32 DiscoveryPolicy;
+ UINT32 DiscoveryPolicyOld;
+ UINTN Size;
+ EFI_BOOT_MANAGER_POLICY_PROTOCOL *BMPolicy;
+ EFI_GUID *Class;
+
+ Size = sizeof (DiscoveryPolicy);
+ Status = gRT->GetVariable (
+ BOOT_DISCOVERY_POLICY_VAR,
+ &gBootDiscoveryPolicyMgrFormsetGuid,
+ NULL,
+ &Size,
+ &DiscoveryPolicy
+ );
+ if (Status == EFI_NOT_FOUND) {
+ DiscoveryPolicy = PcdGet32 (PcdBootDiscoveryPolicy);
+ Status = PcdSet32S (PcdBootDiscoveryPolicy, DiscoveryPolicy);
+ if (Status == EFI_NOT_FOUND) {
+ return EFI_SUCCESS;
+ } else if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ } else if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ if (DiscoveryPolicy == BDP_CONNECT_MINIMAL) {
+ return EFI_SUCCESS;
+ }
+
+ switch (DiscoveryPolicy) {
+ case BDP_CONNECT_NET:
+ Class = &gEfiBootManagerPolicyNetworkGuid;
+ break;
+ case BDP_CONNECT_ALL:
+ Class = &gEfiBootManagerPolicyConnectAllGuid;
+ break;
+ default:
+ DEBUG ((
+ DEBUG_INFO,
+ "%a - Unexpected DiscoveryPolicy (0x%x). Run Minimal Discovery Policy\n",
+ __FUNCTION__,
+ DiscoveryPolicy
+ ));
+ return EFI_SUCCESS;
+ }
+
+ Status = gBS->LocateProtocol (
+ &gEfiBootManagerPolicyProtocolGuid,
+ NULL,
+ (VOID **)&BMPolicy
+ );
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_INFO, "%a - Failed to locate gEfiBootManagerPolicyProtocolGuid."
+ "Driver connect will be skipped.\n", __FUNCTION__));
+ return Status;
+ }
+
+ Status = BMPolicy->ConnectDeviceClass (BMPolicy, Class);
+ if (EFI_ERROR (Status)){
+ DEBUG ((DEBUG_ERROR, "%a - ConnectDeviceClass returns - %r\n", __FUNCTION__, Status));
+ return Status;
+ }
+
+ //
+ // 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;
+}
+
/**
Do the platform specific action after the console is ready
Possible things that can be done in PlatformBootManagerAfterConsole:
@@ -753,6 +863,12 @@ PlatformBootManagerAfterConsole (
}
}
+ //
+ // Connect device specified by BootDiscoverPolicy variable and
+ // refresh Boot order for newly discovered boot devices
+ //
+ BootDiscoveryPolicyHandler ();
+
//
// On ARM, there is currently no reason to use the phased capsule
// update approach where some capsules are dispatched before EndOfDxe
--
2.25.1
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On Mon, 30 Aug 2021 at 14:08, Grzegorz Bernacki <gjb@semihalf.com> wrote:
>
> This commit adds code which check BootDiscoveryPolicy variable and
> calls Boot Policy Manager Protocol to connect device specified by
> the variable. To enable that mechanism for platform
> EfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy PCD must be
> added to DSC file and BootDiscoveryPolicyUiLib should be added to
> UiApp libraries.
>
> Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
> Reviewed-by: Sunny Wang <sunny.wang@arm.com>
> Reviewed-by: Sami Mujawar <sami.mujawar@arm.com>
Merged as #1932
Thanks all,
> ---
>
> Notes:
> v2:
> - fix error from CI
>
> v3:
> - use local variable DiscoveryPolicy to initialize BootDiscoveryPolicy
> - coding style fixes
> - run EfiBootManagerRefreshAllBootOption () only if BootDiscoveryPolicy
>
> ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf | 5 +
> ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c | 118 +++++++++++++++++++-
> 2 files changed, 122 insertions(+), 1 deletion(-)
>
> diff --git a/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf b/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
> index 353d7a967b..86751b45f8 100644
> --- a/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
> +++ b/ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
> @@ -65,11 +65,15 @@
>
> [Pcd]
> gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut
> + gEfiMdeModulePkgTokenSpaceGuid.PcdBootDiscoveryPolicy
>
> [Guids]
> + gBootDiscoveryPolicyMgrFormsetGuid
> gEdkiiNonDiscoverableEhciDeviceGuid
> gEdkiiNonDiscoverableUhciDeviceGuid
> gEdkiiNonDiscoverableXhciDeviceGuid
> + gEfiBootManagerPolicyNetworkGuid
> + gEfiBootManagerPolicyConnectAllGuid
> gEfiFileInfoGuid
> gEfiFileSystemInfoGuid
> gEfiFileSystemVolumeLabelInfoIdGuid
> @@ -79,6 +83,7 @@
>
> [Protocols]
> gEdkiiNonDiscoverableDeviceProtocolGuid
> + gEfiBootManagerPolicyProtocolGuid
> gEfiDevicePathProtocolGuid
> gEfiGraphicsOutputProtocolGuid
> gEfiLoadedImageProtocolGuid
> diff --git a/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c b/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
> index 5ceb23d822..1e4020487a 100644
> --- a/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
> +++ b/ArmPkg/Library/PlatformBootManagerLib/PlatformBm.c
> @@ -2,9 +2,10 @@
> Implementation for PlatformBootManagerLib library class interfaces.
>
> Copyright (C) 2015-2016, Red Hat, Inc.
> - Copyright (c) 2014 - 2019, ARM Ltd. All rights reserved.<BR>
> + Copyright (c) 2014 - 2021, ARM Ltd. All rights reserved.<BR>
> Copyright (c) 2004 - 2018, Intel Corporation. All rights reserved.<BR>
> Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
> + Copyright (c) 2021, Semihalf All rights reserved.<BR>
>
> SPDX-License-Identifier: BSD-2-Clause-Patent
>
> @@ -19,6 +20,7 @@
> #include <Library/UefiBootManagerLib.h>
> #include <Library/UefiLib.h>
> #include <Library/UefiRuntimeServicesTableLib.h>
> +#include <Protocol/BootManagerPolicy.h>
> #include <Protocol/DevicePath.h>
> #include <Protocol/EsrtManagement.h>
> #include <Protocol/GraphicsOutput.h>
> @@ -27,6 +29,7 @@
> #include <Protocol/PciIo.h>
> #include <Protocol/PciRootBridgeIo.h>
> #include <Protocol/PlatformBootManager.h>
> +#include <Guid/BootDiscoveryPolicy.h>
> #include <Guid/EventGroup.h>
> #include <Guid/NonDiscoverableDevice.h>
> #include <Guid/TtyTerm.h>
> @@ -703,6 +706,113 @@ HandleCapsules (
>
> #define VERSION_STRING_PREFIX L"Tianocore/EDK2 firmware version "
>
> +/**
> + This functions checks the value of BootDiscoverPolicy variable and
> + connect devices of class specified by that variable. Then it refreshes
> + Boot order for newly discovered boot device.
> +
> + @retval EFI_SUCCESS Devices connected successfully or connection
> + not required.
> + @retval others Return values from GetVariable(), LocateProtocol()
> + and ConnectDeviceClass().
> +**/
> +STATIC
> +EFI_STATUS
> +BootDiscoveryPolicyHandler (
> + VOID
> + )
> +{
> + EFI_STATUS Status;
> + UINT32 DiscoveryPolicy;
> + UINT32 DiscoveryPolicyOld;
> + UINTN Size;
> + EFI_BOOT_MANAGER_POLICY_PROTOCOL *BMPolicy;
> + EFI_GUID *Class;
> +
> + Size = sizeof (DiscoveryPolicy);
> + Status = gRT->GetVariable (
> + BOOT_DISCOVERY_POLICY_VAR,
> + &gBootDiscoveryPolicyMgrFormsetGuid,
> + NULL,
> + &Size,
> + &DiscoveryPolicy
> + );
> + if (Status == EFI_NOT_FOUND) {
> + DiscoveryPolicy = PcdGet32 (PcdBootDiscoveryPolicy);
> + Status = PcdSet32S (PcdBootDiscoveryPolicy, DiscoveryPolicy);
> + if (Status == EFI_NOT_FOUND) {
> + return EFI_SUCCESS;
> + } else if (EFI_ERROR (Status)) {
> + return Status;
> + }
> + } else if (EFI_ERROR (Status)) {
> + return Status;
> + }
> +
> + if (DiscoveryPolicy == BDP_CONNECT_MINIMAL) {
> + return EFI_SUCCESS;
> + }
> +
> + switch (DiscoveryPolicy) {
> + case BDP_CONNECT_NET:
> + Class = &gEfiBootManagerPolicyNetworkGuid;
> + break;
> + case BDP_CONNECT_ALL:
> + Class = &gEfiBootManagerPolicyConnectAllGuid;
> + break;
> + default:
> + DEBUG ((
> + DEBUG_INFO,
> + "%a - Unexpected DiscoveryPolicy (0x%x). Run Minimal Discovery Policy\n",
> + __FUNCTION__,
> + DiscoveryPolicy
> + ));
> + return EFI_SUCCESS;
> + }
> +
> + Status = gBS->LocateProtocol (
> + &gEfiBootManagerPolicyProtocolGuid,
> + NULL,
> + (VOID **)&BMPolicy
> + );
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_INFO, "%a - Failed to locate gEfiBootManagerPolicyProtocolGuid."
> + "Driver connect will be skipped.\n", __FUNCTION__));
> + return Status;
> + }
> +
> + Status = BMPolicy->ConnectDeviceClass (BMPolicy, Class);
> + if (EFI_ERROR (Status)){
> + DEBUG ((DEBUG_ERROR, "%a - ConnectDeviceClass returns - %r\n", __FUNCTION__, Status));
> + return Status;
> + }
> +
> + //
> + // 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;
> +}
> +
> /**
> Do the platform specific action after the console is ready
> Possible things that can be done in PlatformBootManagerAfterConsole:
> @@ -753,6 +863,12 @@ PlatformBootManagerAfterConsole (
> }
> }
>
> + //
> + // Connect device specified by BootDiscoverPolicy variable and
> + // refresh Boot order for newly discovered boot devices
> + //
> + BootDiscoveryPolicyHandler ();
> +
> //
> // On ARM, there is currently no reason to use the phased capsule
> // update approach where some capsules are dispatched before EndOfDxe
> --
> 2.25.1
>
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