CpuExceptionHandlerLib (in EDK2) has been refactored with following changes
1. Removed InitializeCpuInterruptHandlers in 2a09527ebcb459b40
2. Removed InitializeCpuExceptionHandlersEx and
added InitializeSeparateExceptionStacks in e7abb94d1fb8a0e7
The patch updates RISC-V version of CpuExceptionHandlerLib to follow
the API changes, based on the ARM changes in e2ae0bed29ca0900bd35.
The functionality to RISC-V platforms should be none.
Signed-off-by: Daniel Schaefer <daniel.schae...@hpe.com>
Cc: Sunil V L <suni...@ventanamicro.com>
---
Silicon/RISC-V/ProcessorPkg/Library/RiscVExceptionLib/CpuExceptionHandlerLib.c
| 82 ++++++--------------
1 file changed, 24 insertions(+), 58 deletions(-)
diff --git
a/Silicon/RISC-V/ProcessorPkg/Library/RiscVExceptionLib/CpuExceptionHandlerLib.c
b/Silicon/RISC-V/ProcessorPkg/Library/RiscVExceptionLib/CpuExceptionHandlerLib.c
index 93fbde619f..c3ced4a4c2 100644
---
a/Silicon/RISC-V/ProcessorPkg/Library/RiscVExceptionLib/CpuExceptionHandlerLib.c
+++
b/Silicon/RISC-V/ProcessorPkg/Library/RiscVExceptionLib/CpuExceptionHandlerLib.c
@@ -44,31 +44,6 @@ InitializeCpuExceptionHandlers (
return EFI_SUCCESS;
}
-/**
- Initializes all CPU interrupt/exceptions entries and provides the default
interrupt/exception handlers.
-
- Caller should try to get an array of interrupt and/or exception vectors that
are in use and need to
- persist by EFI_VECTOR_HANDOFF_INFO defined in PI 1.3 specification.
- If caller cannot get reserved vector list or it does not exists, set
VectorInfo to NULL.
- If VectorInfo is not NULL, the exception vectors will be initialized per
vector attribute accordingly.
-
- @param[in] VectorInfo Pointer to reserved vector list.
-
- @retval EFI_SUCCESS All CPU interrupt/exception entries have been
successfully initialized
- with default interrupt/exception handlers.
- @retval EFI_INVALID_PARAMETER VectorInfo includes the invalid content if
VectorInfo is not NULL.
- @retval EFI_UNSUPPORTED This function is not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-InitializeCpuInterruptHandlers (
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL
- )
-{
- return EFI_SUCCESS;
-}
-
/**
Registers a function to be called from the processor interrupt handler.
@@ -134,39 +109,6 @@ RiscVSupervisorModeTrapHandler (
}
}
-/**
- Initializes all CPU exceptions entries with optional extra initializations.
-
- By default, this method should include all functionalities implemented by
- InitializeCpuExceptionHandlers(), plus extra initialization works, if any.
- This could be done by calling InitializeCpuExceptionHandlers() directly
- in this method besides the extra works.
-
- InitData is optional and its use and content are processor arch dependent.
- The typical usage of it is to convey resources which have to be reserved
- elsewhere and are necessary for the extra initializations of exception.
-
- @param[in] VectorInfo Pointer to reserved vector list.
- @param[in] InitData Pointer to data optional for extra initializations
- of exception.
-
- @retval EFI_SUCCESS The exceptions have been successfully
- initialized.
- @retval EFI_INVALID_PARAMETER VectorInfo or InitData contains invalid
- content.
- @retval EFI_UNSUPPORTED This function is not supported.
-
-**/
-EFI_STATUS
-EFIAPI
-InitializeCpuExceptionHandlersEx (
- IN EFI_VECTOR_HANDOFF_INFO *VectorInfo OPTIONAL,
- IN CPU_EXCEPTION_INIT_DATA *InitData OPTIONAL
- )
-{
- return InitializeCpuExceptionHandlers (VectorInfo);
-}
-
/**
The constructor function to initial interrupt handlers in
RISCV_MACHINE_MODE_CONTEXT.
@@ -192,3 +134,27 @@ CpuExceptionHandlerLibConstructor (
return EFI_SUCCESS;
}
+
+/**
+ Setup separate stacks for certain exception handlers.
+ If the input Buffer and BufferSize are both NULL, use global variable if
possible.
+
+ @param[in] Buffer Point to buffer used to separate exception
stack.
+ @param[in, out] BufferSize On input, it indicates the byte size of
Buffer.
+ If the size is not enough, the return status
will
+ be EFI_BUFFER_TOO_SMALL, and output BufferSize
+ will be the size it needs.
+
+ @retval EFI_SUCCESS The stacks are assigned successfully.
+ @retval EFI_UNSUPPORTED This function is not supported.
+ @retval EFI_BUFFER_TOO_SMALL This BufferSize is too small.
+**/
+EFI_STATUS
+EFIAPI
+InitializeSeparateExceptionStacks (
+ IN VOID *Buffer,
+ IN OUT UINTN *BufferSize
+ )
+{
+ return EFI_SUCCESS;
+}
--
2.36.0
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