David Cunado 495f3d3c51 Reset debug registers MDCR-EL3/SDCR and MDCR_EL2/HDCR ... In order to avoid unexpected traps into EL3/MON mode, this patch resets the debug registers, MDCR_EL3 and MDCR_EL2 for AArch64, and SDCR and HDCR for AArch32. MDCR_EL3/SDCR is zero'ed when EL3/MON mode is entered, at the start of BL1 and BL31/SMP_MIN. For MDCR_EL2/HDCR, this patch zero's the bits that are architecturally UNKNOWN values on reset. This is done when exiting from EL3/MON mode but only on platforms that support EL2/HYP mode but choose to exit to EL1/SVC mode. Fixes ARM-software/tf-issues#430 Change-Id: Idb992232163c072faa08892251b5626ae4c3a5b6 Signed-off-by: David Cunado <david.cunado@arm.com>		2016-11-09 15:45:06 +00:00
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arch.h	Reset debug registers MDCR-EL3/SDCR and MDCR_EL2/HDCR	2016-11-09 15:45:06 +00:00
arch_helpers.h	Reset debug registers MDCR-EL3/SDCR and MDCR_EL2/HDCR	2016-11-09 15:45:06 +00:00
smcc_helpers.h	AArch32: Add API to invoke runtime service handler	2016-08-10 12:35:46 +01:00