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Diffstat (limited to 'arch/arm/kvm/coproc_a15.c')
-rw-r--r--arch/arm/kvm/coproc_a15.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/kvm/coproc_a15.c b/arch/arm/kvm/coproc_a15.c
index 685063a6d0c..cf93472b9dd 100644
--- a/arch/arm/kvm/coproc_a15.c
+++ b/arch/arm/kvm/coproc_a15.c
@@ -114,7 +114,11 @@ static bool access_l2ectlr(struct kvm_vcpu *vcpu,
/*
* A15-specific CP15 registers.
- * Important: Must be sorted ascending by CRn, CRM, Op1, Op2
+ * CRn denotes the primary register number, but is copied to the CRm in the
+ * user space API for 64-bit register access in line with the terminology used
+ * in the ARM ARM.
+ * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 and with 64-bit
+ * registers preceding 32-bit ones.
*/
static const struct coproc_reg a15_regs[] = {
/* MPIDR: we use VMPIDR for guest access. */