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Diffstat (limited to 'arch/arm64/kernel/pi/idreg-override.c')
-rw-r--r--arch/arm64/kernel/pi/idreg-override.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/kernel/pi/idreg-override.c b/arch/arm64/kernel/pi/idreg-override.c
index 29d4b6244a6f..22159251eb3a 100644
--- a/arch/arm64/kernel/pi/idreg-override.c
+++ b/arch/arm64/kernel/pi/idreg-override.c
@@ -38,6 +38,15 @@ struct ftr_set_desc {
#define FIELD(n, s, f) { .name = n, .shift = s, .width = 4, .filter = f }
+static const struct ftr_set_desc mmfr0 __prel64_initconst = {
+ .name = "id_aa64mmfr0",
+ .override = &id_aa64mmfr0_override,
+ .fields = {
+ FIELD("ecv", ID_AA64MMFR0_EL1_ECV_SHIFT, NULL),
+ {}
+ },
+};
+
static bool __init mmfr1_vh_filter(u64 val)
{
/*
@@ -133,6 +142,7 @@ static const struct ftr_set_desc pfr1 __prel64_initconst = {
.override = &id_aa64pfr1_override,
.fields = {
FIELD("bt", ID_AA64PFR1_EL1_BT_SHIFT, NULL ),
+ FIELD("gcs", ID_AA64PFR1_EL1_GCS_SHIFT, NULL),
FIELD("mte", ID_AA64PFR1_EL1_MTE_SHIFT, NULL),
FIELD("sme", ID_AA64PFR1_EL1_SME_SHIFT, pfr1_sme_filter),
{}
@@ -196,6 +206,7 @@ static const struct ftr_set_desc sw_features __prel64_initconst = {
static const
PREL64(const struct ftr_set_desc, reg) regs[] __prel64_initconst = {
+ { &mmfr0 },
{ &mmfr1 },
{ &mmfr2 },
{ &pfr0 },
@@ -215,6 +226,7 @@ static const struct {
{ "arm64.nosve", "id_aa64pfr0.sve=0" },
{ "arm64.nosme", "id_aa64pfr1.sme=0" },
{ "arm64.nobti", "id_aa64pfr1.bt=0" },
+ { "arm64.nogcs", "id_aa64pfr1.gcs=0" },
{ "arm64.nopauth",
"id_aa64isar1.gpi=0 id_aa64isar1.gpa=0 "
"id_aa64isar1.api=0 id_aa64isar1.apa=0 "