1 files changed, 43 insertions, 0 deletions
diff --git a/src/smccc/arch/calls.rs b/src/smccc/arch/calls.rs
new file mode 100644
index 0000000..0164616
--- /dev/null
+++ b/src/smccc/arch/calls.rs
@@ -0,0 +1,43 @@
+// Copyright 2023 the authors.
+// This project is dual-licensed under Apache 2.0 and MIT terms.
+// See LICENSE-APACHE and LICENSE-MIT for details.
+
+use super::{
+    error::Error, SocIdType, Version, SMCCC_ARCH_FEATURES, SMCCC_ARCH_SOC_ID,
+    SMCCC_ARCH_WORKAROUND_1, SMCCC_ARCH_WORKAROUND_2, SMCCC_ARCH_WORKAROUND_3, SMCCC_VERSION,
+};
+use crate::smccc::{
+    call32,
+    error::{positive_or_error_32, success_or_error_32},
+};
+
+/// Returns the implemented version of the SMC Calling Convention.
+pub fn version() -> Result<Version, Error> {
+    (call32(SMCCC_VERSION, [0; 7])[0] as i32).try_into()
+}
+
+/// Returns whether the given Arm Architecture Service function is implemented, and any feature
+/// flags specific to the function.
+pub fn features(arch_func_id: u32) -> Result<u32, Error> {
+    positive_or_error_32(call32(SMCCC_ARCH_FEATURES, [arch_func_id, 0, 0, 0, 0, 0, 0])[0])
+}
+
+/// Returns the SiP defined SoC identification details.
+pub fn soc_id(soc_id_type: SocIdType) -> Result<u32, Error> {
+    positive_or_error_32(call32(SMCCC_ARCH_SOC_ID, [soc_id_type.into(), 0, 0, 0, 0, 0, 0])[0])
+}
+
+/// Executes a firmware workaround to mitigate CVE-2017-5715.
+pub fn arch_workaround_1() -> Result<(), Error> {
+    success_or_error_32(call32(SMCCC_ARCH_WORKAROUND_1, [0; 7])[0])
+}
+
+/// Enables or disables the mitigation for CVE-2018-3639.
+pub fn arch_workaround_2(enable: bool) -> Result<(), Error> {
+    success_or_error_32(call32(SMCCC_ARCH_WORKAROUND_2, [enable.into(), 0, 0, 0, 0, 0, 0])[0])
+}
+
+/// Executes a firmware workaround to mitigate CVE-2017-5715 and CVE-2022-23960.
+pub fn arch_workaround_3() -> Result<(), Error> {
+    success_or_error_32(call32(SMCCC_ARCH_WORKAROUND_3, [0; 7])[0])
+}