From 5543d1abb6e218a9d3b8887b777fd3947c86c4cf Mon Sep 17 00:00:00 2001 From: Fabian Aggeler Date: Tue, 12 May 2015 11:57:16 +0100 Subject: hw/intc/arm_gic: Add Security Extensions property Add a QOM property which allows the GIC Security Extensions to be enabled. These are an optional part of the GICv1 and GICv2 architecture. This commit just adds the property and some sanity checks that it is only enabled on GIC revisions that support it. Signed-off-by: Fabian Aggeler Signed-off-by: Greg Bellows Reviewed-by: Edgar E. Iglesias Signed-off-by: Peter Maydell Message-id: 1430502643-25909-3-git-send-email-peter.maydell@linaro.org Message-id: 1429113742-8371-5-git-send-email-greg.bellows@linaro.org [PMM: changed property name, added checks that it isn't set for older GIC revisions or if using the KVM VGIC; reworded commit message] Signed-off-by: Peter Maydell --- hw/intc/arm_gic.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'hw/intc/arm_gic.c') diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c index e9fb8b9400..cdf7408774 100644 --- a/hw/intc/arm_gic.c +++ b/hw/intc/arm_gic.c @@ -298,7 +298,10 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset) if (offset == 0) return s->enabled; if (offset == 4) - return ((s->num_irq / 32) - 1) | ((NUM_CPU(s) - 1) << 5); + /* Interrupt Controller Type Register */ + return ((s->num_irq / 32) - 1) + | ((NUM_CPU(s) - 1) << 5) + | (s->security_extn << 10); if (offset < 0x08) return 0; if (offset >= 0x80) { -- cgit v1.2.3