From c7fefb690661f2e38afcb8200bd318ecf38ab961 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 22 Jun 2016 16:23:57 +0200 Subject: ArmPkg/ArmGicV3Dxe: configure all interrupts as non-secure Group-1 Reassign all interrupts to non-secure Group-1 if the GIC has its DS (Disable Security) bit set. In this case, it is safe to assume that we own the GIC, and that no other firmware has performed any configuration yet, which means it is up to us to reconfigure the interrupts so they can be taken by the non-secure firmware. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel Reviewed-by: Leif Lindholm --- ArmPkg/Include/Library/ArmGicLib.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'ArmPkg/Include') diff --git a/ArmPkg/Include/Library/ArmGicLib.h b/ArmPkg/Include/Library/ArmGicLib.h index 10c4a9d..4364f3f 100644 --- a/ArmPkg/Include/Library/ArmGicLib.h +++ b/ArmPkg/Include/Library/ArmGicLib.h @@ -47,8 +47,9 @@ // GICv3 specific registers #define ARM_GICD_IROUTER 0x6100 // Interrupt Routing Registers -// the Affinity Routing Enable (ARE) bit in GICD_CTLR -#define ARM_GIC_ICDDCR_ARE (1 << 4) +// GICD_CTLR bits +#define ARM_GIC_ICDDCR_ARE (1 << 4) // Affinity Routing Enable (ARE) +#define ARM_GIC_ICDDCR_DS (1 << 6) // Disable Security (DS) // // GIC Redistributor -- cgit v1.1