diff options
| author |   Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
|---|---|---|
| committer | Angelos Mouzakitis <a.mouzakitis@virtualopensystems.com> | 2023-10-10 14:33:42 +0000 |
| commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
| tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/edk2/MdePkg/Library/BaseLib/X86GetInterruptState.c | |
| parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) | |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/edk2/MdePkg/Library/BaseLib/X86GetInterruptState.c')
| -rw-r--r-- | roms/edk2/MdePkg/Library/BaseLib/X86GetInterruptState.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/roms/edk2/MdePkg/Library/BaseLib/X86GetInterruptState.c b/roms/edk2/MdePkg/Library/BaseLib/X86GetInterruptState.c new file mode 100644 index 000000000..4363a7fda --- /dev/null +++ b/roms/edk2/MdePkg/Library/BaseLib/X86GetInterruptState.c @@ -0,0 +1,35 @@ +/** @file
+ IA-32/x64 GetInterruptState()
+
+ Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+
+#include "BaseLibInternals.h"
+
+
+/**
+ Retrieves the current CPU interrupt state.
+
+ Returns TRUE is interrupts are currently enabled. Otherwise
+ returns FALSE.
+
+ @retval TRUE CPU interrupts are enabled.
+ @retval FALSE CPU interrupts are disabled.
+
+**/
+BOOLEAN
+EFIAPI
+GetInterruptState (
+ VOID
+ )
+{
+ IA32_EFLAGS32 EFlags;
+
+ EFlags.UintN = AsmReadEflags ();
+ return (BOOLEAN)(1 == EFlags.Bits.IF);
+}
+
+
|