diff options
| author | Michael D Kinney <michael.d.kinney@intel.com> | 2024-01-23 14:49:42 -0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-01-27 19:40:15 +0000 |
| commit | 4c43209a740d4b38094f9495ce85219421a938af (patch) | |
| tree | aaad7776f11132876f4e79eefccd675e138f35b3 /MdePkg/Library/BaseCpuLibNull | |
| parent | 7d7decfa3dc817775322505ae770a27f185465cf (diff) | |
| download | edk2-4c43209a740d4b38094f9495ce85219421a938af.tar.gz edk2-4c43209a740d4b38094f9495ce85219421a938af.tar.bz2 edk2-4c43209a740d4b38094f9495ce85219421a938af.zip | |
MdePkg/Library/BaseCpuLibNull: Add missing X86 specific services
* Add InitializeFloatingPointUnits() to x86 specific file
* Add GetCpuFamilyModel() to x86 specific file
* Add GetCpuSteppingId() to x86 specific file
* Move StandardSignatureIsAuthenticAMD() to x86 specific file.
* Add CpuLib library class include to all C files.
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Qing Huang <qing.huang@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'MdePkg/Library/BaseCpuLibNull')
| -rw-r--r-- | MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c | 17 | ||||
| -rw-r--r-- | MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf | 3 | ||||
| -rw-r--r-- | MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c | 64 |
3 files changed, 69 insertions, 15 deletions
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c index 3542cf6921..0080022b94 100644 --- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c @@ -6,6 +6,8 @@ **/
+#include <Library/CpuLib.h>
+
/**
Places the CPU in a sleep state until an interrupt is received.
@@ -35,18 +37,3 @@ CpuFlushTlb ( )
{
}
-
-/**
- Determine if the standard CPU signature is "AuthenticAMD".
-
- @retval TRUE The CPU signature matches.
- @retval FALSE The CPU signature does not match.
-**/
-BOOLEAN
-EFIAPI
-StandardSignatureIsAuthenticAMD (
- VOID
- )
-{
- return FALSE;
-}
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf index a9e8399038..9f20d6833f 100644 --- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf @@ -22,5 +22,8 @@ [Sources]
BaseCpuLibNull.c
+[Sources.IA32, Sources.X64]
+ X86BaseCpuLibNull.c
+
[Packages]
MdePkg/MdePkg.dec
diff --git a/MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c b/MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c new file mode 100644 index 0000000000..4469bcc767 --- /dev/null +++ b/MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c @@ -0,0 +1,64 @@ +/** @file
+ Null instance of CPU Library for IA32/X64 specific services.
+
+ Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <Library/CpuLib.h>
+
+/**
+ Initializes floating point units for requirement of UEFI specification.
+ This function initializes floating-point control word to 0x027F (all exceptions
+ masked,double-precision, round-to-nearest) and multimedia-extensions control word
+ (if supported) to 0x1F80 (all exceptions masked, round-to-nearest, flush to zero
+ for masked underflow).
+**/
+VOID
+EFIAPI
+InitializeFloatingPointUnits (
+ VOID
+ )
+{
+}
+
+/**
+ Determine if the standard CPU signature is "AuthenticAMD".
+ @retval TRUE The CPU signature matches.
+ @retval FALSE The CPU signature does not match.
+**/
+BOOLEAN
+EFIAPI
+StandardSignatureIsAuthenticAMD (
+ VOID
+ )
+{
+ return FALSE;
+}
+
+/**
+ Return the 32bit CPU family and model value.
+ @return CPUID[01h].EAX with Processor Type and Stepping ID cleared.
+**/
+UINT32
+EFIAPI
+GetCpuFamilyModel (
+ VOID
+ )
+{
+ return 0;
+}
+
+/**
+ Return the CPU stepping ID.
+ @return CPU stepping ID value in CPUID[01h].EAX.
+**/
+UINT8
+EFIAPI
+GetCpuSteppingId (
+ VOID
+ )
+{
+ return 0;
+}
|