Add an API to retrieve satp register value.
Signed-off-by: Tuan Phan <tp...@ventanamicro.com>
---
MdePkg/Include/Library/BaseLib.h | 5 +++++
MdePkg/Library/BaseLib/RiscV64/RiscVMmu.S | 8 ++++++++
2 files changed, 13 insertions(+)
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h
index 8f2df76c29a3..5d7067ee854e 100644
--- a/MdePkg/Include/Library/BaseLib.h
+++ b/MdePkg/Include/Library/BaseLib.h
@@ -181,6 +181,11 @@ RiscVSetSupervisorAddressTranslationRegister (
IN UINT64
);
+UINT64
+RiscVGetSupervisorAddressTranslationRegister (
+ VOID
+ );
+
UINT64
RiscVReadTimer (
VOID
diff --git a/MdePkg/Library/BaseLib/RiscV64/RiscVMmu.S
b/MdePkg/Library/BaseLib/RiscV64/RiscVMmu.S
index ac8f92f38aed..c9cf60c1664b 100644
--- a/MdePkg/Library/BaseLib/RiscV64/RiscVMmu.S
+++ b/MdePkg/Library/BaseLib/RiscV64/RiscVMmu.S
@@ -21,3 +21,11 @@
ASM_FUNC (RiscVSetSupervisorAddressTranslationRegister)
csrw CSR_SATP, a0
ret
+
+//
+// Get the value of Supervisor Address Translation and
+// Protection Register.
+//
+ASM_FUNC (RiscVGetSupervisorAddressTranslationRegister)
+ csrr a0, CSR_SATP
+ ret
--
2.25.1
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