feat(rme): add tests to check NS SME ID registers and configurations
These tests checks the functionality of RMM for NS SME support.
- Create Realm and test ID registers specific to SME
- Check if Realm gets undefined abort when it accesses SME
- Check whether RMM preserves NS SMCR_EL2 register
Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Change-Id: Ia8ffd0188297a74c095dbadfb389add50c548e10
diff --git a/realm/realm_simd.c b/realm/realm_simd.c
index 273696b..106a849 100644
--- a/realm/realm_simd.c
+++ b/realm/realm_simd.c
@@ -13,7 +13,7 @@
#include <lib/extensions/fpu.h>
#include <lib/extensions/sve.h>
-#include <host_realm_sve.h>
+#include <host_realm_simd.h>
#include <host_shared_data.h>
#define RL_SVE_OP_ARRAYSIZE 512U
@@ -218,3 +218,38 @@
return true;
}
+
+/* Reads and returns the ID_AA64PFR1_EL1 and ID_AA64SMFR0_EL1 registers */
+bool test_realm_sme_read_id_registers(void)
+{
+ host_shared_data_t *sd = realm_get_my_shared_structure();
+ struct sme_cmd_id_regs *output;
+
+ output = (struct sme_cmd_id_regs *)sd->realm_cmd_output_buffer;
+ memset((void *)output, 0, sizeof(struct sme_cmd_id_regs));
+
+ realm_printf("Realm: reading ID registers: ID_AA64PFR1_EL1, "
+ " ID_AA64SMFR0_EL1\n");
+
+ output->id_aa64pfr1_el1 = read_id_aa64pfr1_el1();
+ output->id_aa64smfr0_el1 = read_id_aa64smfr0_el1();
+
+ return true;
+}
+
+/* Check if Realm gets undefined abort when it access SME functionality */
+bool test_realm_sme_undef_abort(void)
+{
+ realm_got_undef_abort = 0UL;
+
+ /* install exception handler to catch undef abort */
+ register_custom_sync_exception_handler(&realm_sync_exception_handler);
+ (void)read_svcr();
+ unregister_custom_sync_exception_handler();
+
+ if (realm_got_undef_abort == 0UL) {
+ return false;
+ }
+
+ return true;
+}