feat(hcx): add build option to enable FEAT_HCX
FEAT_HCX adds the extended hypervisor configuration register (HCRX_EL2)
and access to this register must be explicitly enabled through the
SCR_EL3.HXEn bit. This patch adds a new build flag ENABLE_FEAT_HCX to
allow the register to be accessed from EL2.
Signed-off-by: John Powell <john.powell@arm.com>
Change-Id: Ibb36ad90622f1dc857adab4b0d4d7a89456a522b
diff --git a/include/arch/aarch64/arch_helpers.h b/include/arch/aarch64/arch_helpers.h
index a41b325..549ae66 100644
--- a/include/arch/aarch64/arch_helpers.h
+++ b/include/arch/aarch64/arch_helpers.h
@@ -532,6 +532,9 @@
DEFINE_SYSREG_READ_FUNC(rndr)
DEFINE_SYSREG_READ_FUNC(rndrrs)
+/* FEAT_HCX Register */
+DEFINE_RENAME_SYSREG_RW_FUNCS(hcrx_el2, HCRX_EL2)
+
/* DynamIQ Shared Unit power management */
DEFINE_RENAME_SYSREG_RW_FUNCS(clusterpwrdn_el1, CLUSTERPWRDN_EL1)