* [edk2-devel] [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86 specific services
@ 2024-01-23 22:52 Michael D Kinney
2024-01-24 12:59 ` Laszlo Ersek
0 siblings, 1 reply; 4+ messages in thread
From: Michael D Kinney @ 2024-01-23 22:52 UTC (permalink / raw)
To: devel; +Cc: Liming Gao, Zhiguang Liu, Laszlo Ersek, Qing Huang
* 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>
---
.../Library/BaseCpuLibNull/BaseCpuLibNull.c | 17 +----
.../Library/BaseCpuLibNull/BaseCpuLibNull.inf | 3 +
.../BaseCpuLibNull/X86BaseCpuLibNull.c | 64 +++++++++++++++++++
3 files changed, 69 insertions(+), 15 deletions(-)
create mode 100644 MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
index 3542cf6921f7..0080022b94ef 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 a9e8399038a6..9f20d6833f56 100644
--- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
+++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
@@ -22,5 +22,8 @@ [Defines]
[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 000000000000..4469bcc767cf
--- /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;
+}
--
2.40.1.windows.1
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* Re: [edk2-devel] [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86 specific services
2024-01-23 22:52 [edk2-devel] [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86 specific services Michael D Kinney
@ 2024-01-24 12:59 ` Laszlo Ersek
2024-01-25 1:11 ` [edk2-devel] 回复: " gaoliming via groups.io
0 siblings, 1 reply; 4+ messages in thread
From: Laszlo Ersek @ 2024-01-24 12:59 UTC (permalink / raw)
To: Michael D Kinney, devel; +Cc: Liming Gao, Zhiguang Liu, Qing Huang
On 1/23/24 23:52, Michael D Kinney wrote:
> * 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>
> ---
> .../Library/BaseCpuLibNull/BaseCpuLibNull.c | 17 +----
> .../Library/BaseCpuLibNull/BaseCpuLibNull.inf | 3 +
> .../BaseCpuLibNull/X86BaseCpuLibNull.c | 64 +++++++++++++++++++
> 3 files changed, 69 insertions(+), 15 deletions(-)
> create mode 100644 MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
>
> diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
> index 3542cf6921f7..0080022b94ef 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 a9e8399038a6..9f20d6833f56 100644
> --- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
> +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
> @@ -22,5 +22,8 @@ [Defines]
> [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 000000000000..4469bcc767cf
> --- /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;
> +}
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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* [edk2-devel] 回复: [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86 specific services
2024-01-24 12:59 ` Laszlo Ersek
@ 2024-01-25 1:11 ` gaoliming via groups.io
2024-01-27 19:40 ` [edk2-devel] " Michael D Kinney
0 siblings, 1 reply; 4+ messages in thread
From: gaoliming via groups.io @ 2024-01-25 1:11 UTC (permalink / raw)
To: 'Laszlo Ersek', 'Michael D Kinney', devel
Cc: 'Zhiguang Liu', 'Qing Huang'
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
> -----邮件原件-----
> 发件人: Laszlo Ersek <lersek@redhat.com>
> 发送时间: 2024年1月24日 21:00
> 收件人: Michael D Kinney <michael.d.kinney@intel.com>;
> devel@edk2.groups.io
> 抄送: Liming Gao <gaoliming@byosoft.com.cn>; Zhiguang Liu
> <zhiguang.liu@intel.com>; Qing Huang <qing.huang@intel.com>
> 主题: Re: [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86
> specific services
>
> On 1/23/24 23:52, Michael D Kinney wrote:
> > * 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>
> > ---
> > .../Library/BaseCpuLibNull/BaseCpuLibNull.c | 17 +----
> > .../Library/BaseCpuLibNull/BaseCpuLibNull.inf | 3 +
> > .../BaseCpuLibNull/X86BaseCpuLibNull.c | 64
> +++++++++++++++++++
> > 3 files changed, 69 insertions(+), 15 deletions(-)
> > create mode 100644
> MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
> >
> > diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
> b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
> > index 3542cf6921f7..0080022b94ef 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 a9e8399038a6..9f20d6833f56 100644
> > --- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
> > +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
> > @@ -22,5 +22,8 @@ [Defines]
> > [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 000000000000..4469bcc767cf
> > --- /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;
> > +}
>
> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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* Re: [edk2-devel] [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86 specific services
2024-01-25 1:11 ` [edk2-devel] 回复: " gaoliming via groups.io
@ 2024-01-27 19:40 ` Michael D Kinney
0 siblings, 0 replies; 4+ messages in thread
From: Michael D Kinney @ 2024-01-27 19:40 UTC (permalink / raw)
To: gaoliming, 'Laszlo Ersek', devel@edk2.groups.io
Cc: Liu, Zhiguang, Huang, Qing, Kinney, Michael D
Merged: https://github.com/tianocore/edk2/pull/5292
> -----Original Message-----
> From: gaoliming <gaoliming@byosoft.com.cn>
> Sent: Wednesday, January 24, 2024 5:11 PM
> To: 'Laszlo Ersek' <lersek@redhat.com>; Kinney, Michael D
> <michael.d.kinney@intel.com>; devel@edk2.groups.io
> Cc: Liu, Zhiguang <zhiguang.liu@intel.com>; Huang, Qing
> <qing.huang@intel.com>
> Subject: 回复: [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing
> X86 specific services
>
> Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
>
> > -----邮件原件-----
> > 发件人: Laszlo Ersek <lersek@redhat.com>
> > 发送时间: 2024年1月24日 21:00
> > 收件人: Michael D Kinney <michael.d.kinney@intel.com>;
> > devel@edk2.groups.io
> > 抄送: Liming Gao <gaoliming@byosoft.com.cn>; Zhiguang Liu
> > <zhiguang.liu@intel.com>; Qing Huang <qing.huang@intel.com>
> > 主题: Re: [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86
> > specific services
> >
> > On 1/23/24 23:52, Michael D Kinney wrote:
> > > * 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>
> > > ---
> > > .../Library/BaseCpuLibNull/BaseCpuLibNull.c | 17 +----
> > > .../Library/BaseCpuLibNull/BaseCpuLibNull.inf | 3 +
> > > .../BaseCpuLibNull/X86BaseCpuLibNull.c | 64
> > +++++++++++++++++++
> > > 3 files changed, 69 insertions(+), 15 deletions(-)
> > > create mode 100644
> > MdePkg/Library/BaseCpuLibNull/X86BaseCpuLibNull.c
> > >
> > > diff --git a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
> > b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.c
> > > index 3542cf6921f7..0080022b94ef 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 a9e8399038a6..9f20d6833f56 100644
> > > --- a/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
> > > +++ b/MdePkg/Library/BaseCpuLibNull/BaseCpuLibNull.inf
> > > @@ -22,5 +22,8 @@ [Defines]
> > > [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 000000000000..4469bcc767cf
> > > --- /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;
> > > +}
> >
> > Reviewed-by: Laszlo Ersek <lersek@redhat.com>
>
>
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2024-01-23 22:52 [edk2-devel] [Patch 1/1] MdePkg/Library/BaseCpuLibNull: Add missing X86 specific services Michael D Kinney
2024-01-24 12:59 ` Laszlo Ersek
2024-01-25 1:11 ` [edk2-devel] 回复: " gaoliming via groups.io
2024-01-27 19:40 ` [edk2-devel] " Michael D Kinney
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