From: Ard Biesheuvel <a...@kernel.org>
In addition to setting up the home grown reset notification, register
with the generic EFI protocol that does the same. This event is
triggered from the reset runtime implemented in MdeModulePkg, to which
we will be switching the RPi platforms in a subsequent patch.
Signed-off-by: Ard Biesheuvel <a...@kernel.org>
---
Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.inf | 1 +
Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c | 35
++++++++++++++++++--
2 files changed, 33 insertions(+), 3 deletions(-)
diff --git
a/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.inf
b/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.inf
index c2edb25bd41d..43a2b06022c8 100644
--- a/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.inf
+++ b/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.inf
@@ -61,6 +61,7 @@ [Protocols]
gEfiBlockIoProtocolGuid
gEfiFirmwareVolumeBlockProtocolGuid # PROTOCOL SOMETIMES_PRODUCED
gEfiDevicePathProtocolGuid # PROTOCOL SOMETIMES_PRODUCED
+ gEfiResetNotificationProtocolGuid
[FixedPcd]
gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableSize
diff --git
a/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c
b/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c
index 6bd026a7b763..3aa2ec76cae7 100644
--- a/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c
+++ b/Platform/RaspberryPi/Drivers/VarBlockServiceDxe/VarBlockServiceDxe.c
@@ -10,6 +10,8 @@
#include "VarBlockService.h"
+#include <Protocol/ResetNotification.h>
+
//
// Minimum delay to enact before reset, when variables are dirty (in μs).
// Needed to ensure that SSD-based USB 3.0 devices have time to flush their
@@ -209,6 +211,19 @@ DumpVarsOnEvent (
DumpVars ();
}
+STATIC
+VOID
+EFIAPI
+DumpVarsOnReset (
+ IN EFI_RESET_TYPE ResetType,
+ IN EFI_STATUS ResetStatus,
+ IN UINTN DataSize,
+ IN VOID *ResetData OPTIONAL
+ )
+{
+ DumpVars ();
+}
+
VOID
ReadyToBootHandler (
IN EFI_EVENT Event,
@@ -246,9 +261,10 @@ InstallDumpVarEventHandlers (
VOID
)
{
- EFI_STATUS Status;
- EFI_EVENT ResetEvent;
- EFI_EVENT ReadyToBootEvent;
+ EFI_STATUS Status;
+ EFI_EVENT ResetEvent;
+ EFI_EVENT ReadyToBootEvent;
+ EFI_RESET_NOTIFICATION_PROTOCOL *ResetNotify;
Status = gBS->CreateEventEx (
EVT_NOTIFY_SIGNAL,
@@ -269,6 +285,19 @@ InstallDumpVarEventHandlers (
&ReadyToBootEvent
);
ASSERT_EFI_ERROR (Status);
+
+ Status = gBS->LocateProtocol (
+ &gEfiResetNotificationProtocolGuid,
+ NULL,
+ (VOID **)&ResetNotify
+ );
+ if (!EFI_ERROR (Status)) {
+ Status = ResetNotify->RegisterResetNotify (
+ ResetNotify,
+ DumpVarsOnReset
+ );
+ ASSERT_EFI_ERROR (Status);
+ }
}
--
2.46.0.rc1.232.g9752f9e123-goog
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