diff options
| author | andrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-04-13 19:27:03 +0000 |
|---|---|---|
| committer | andrewfish <andrewfish@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-04-13 19:27:03 +0000 |
| commit | bb02cb8071e9df25cbcae15a9afa70d6387320cb (patch) | |
| tree | 7900b3fb2611863cf77f36d887ea2aac3005e166 /ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm | |
| parent | 382127fc4ce6acbae01a128230e41a07faf868f2 (diff) | |
| download | edk2-platforms-bb02cb8071e9df25cbcae15a9afa70d6387320cb.tar.xz | |
Cleanup MMU code to do book required sync. Update exception handler to clear fault registers.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10366 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm')
| -rw-r--r-- | ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm b/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm index 3bcca4d6aa..b45f6682a1 100644 --- a/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm +++ b/ArmPkg/Drivers/CpuDxe/ExceptionSupport.ARMv6.asm @@ -254,6 +254,12 @@ CommonCExceptionHandler ( */ blx CommonCExceptionHandler ; Call exception handler + ldr R1, [SP, #0x4c] ; Restore EFI_SYSTEM_CONTEXT_ARM.IFSR + mcr p15, 0, R1, c5, c0, 1 ; Write IFSR + + ldr R1, [SP, #0x44] ; sRestore EFI_SYSTEM_CONTEXT_ARM.DFSR + mcr p15, 0, R1, c5, c0, 0 ; Write DFSR + ldr R1,[SP,#0x3c] ; EFI_SYSTEM_CONTEXT_ARM.PC str R1,[SP,#0x58] ; Store it back to srsfd stack slot so it can be restored |