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ArmPkg/CpuDxe: AArch64: Fix wrong comparison of exception type 

During the interrupt registration comparison is made against
max value of exception types for ARMV7, but in the common handling
function the check is made against max value of exceptions types
for ARMV8. This can lead to undefined behaviour during registration
of interrupts.

This patch modifies the registration function to handle only AArch64
exceptions.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14561 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Girish K S 2013-08-19 13:49:09 +00:00 committed by oliviermartin
parent 6675a21f14
commit 6a343fac2c
1 changed files with 3 additions and 3 deletions
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6
ArmPkg/Drivers/CpuDxe/AArch64/Exception.c
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@ -38,8 +38,8 @@ AsmCommonExceptionEntry (
);
EFI_EXCEPTION_CALLBACK gExceptionHandlers[MAX_ARM_EXCEPTION + 1];
EFI_EXCEPTION_CALLBACK gDebuggerExceptionHandlers[MAX_ARM_EXCEPTION + 1];
EFI_EXCEPTION_CALLBACK gExceptionHandlers[MAX_AARCH64_EXCEPTION + 1];
EFI_EXCEPTION_CALLBACK gDebuggerExceptionHandlers[MAX_AARCH64_EXCEPTION + 1];
@ -69,7 +69,7 @@ RegisterInterruptHandler (
IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
)
{
if (InterruptType > MAX_ARM_EXCEPTION) {
if (InterruptType > MAX_AARCH64_EXCEPTION) {
return EFI_UNSUPPORTED;
}