dev-arm: Add read/writeBanked helpers to GICv3
These will be used by AA64 security banked registers in GICv3.
Change-Id: Ia980c4f5c14187ab9c18da1d1d596562644111ae
Signed-off-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20624
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
diff --git a/src/dev/arm/gic_v3_cpu_interface.cc b/src/dev/arm/gic_v3_cpu_interface.cc
index cc630b4..d3d73a3 100644
--- a/src/dev/arm/gic_v3_cpu_interface.cc
+++ b/src/dev/arm/gic_v3_cpu_interface.cc
@@ -1623,6 +1623,20 @@
}
}
+RegVal
+Gicv3CPUInterface::readBankedMiscReg(MiscRegIndex misc_reg) const
+{
+ return isa->readMiscRegNoEffect(
+ isa->snsBankedIndex64(misc_reg, !isSecureBelowEL3()));
+}
+
+void
+Gicv3CPUInterface::setBankedMiscReg(MiscRegIndex misc_reg, RegVal val) const
+{
+ isa->setMiscRegNoEffect(
+ isa->snsBankedIndex64(misc_reg, !isSecureBelowEL3()), val);
+}
+
int
Gicv3CPUInterface::virtualFindActive(uint32_t int_id) const
{
diff --git a/src/dev/arm/gic_v3_cpu_interface.hh b/src/dev/arm/gic_v3_cpu_interface.hh
index 56a6695..9e1c9a0 100644
--- a/src/dev/arm/gic_v3_cpu_interface.hh
+++ b/src/dev/arm/gic_v3_cpu_interface.hh
@@ -338,6 +338,8 @@
void virtualUpdate();
RegVal bpr1(Gicv3::GroupId group);
+ RegVal readBankedMiscReg(MiscRegIndex misc_reg) const;
+ void setBankedMiscReg(MiscRegIndex misc_reg, RegVal val) const;
public:
Gicv3CPUInterface(Gicv3 * gic, uint32_t cpu_id);