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List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: jOjVio4apMAy9RZN5UjPd5cSx7686176AA= Content-Language: en-US Content-Type: multipart/alternative; boundary="_000_MN6PR11MB8244CF91FF08CA66533ABD678C362MN6PR11MB8244namp_" X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20240206 header.b=vhktvFda; dmarc=fail reason="SPF not aligned (relaxed), DKIM not aligned (relaxed)" header.from=intel.com (policy=none); spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io --_000_MN6PR11MB8244CF91FF08CA66533ABD678C362MN6PR11MB8244namp_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable 2 comments: 1. Atrributes is type of UINTN but Mask is type of UINT64. Should they follow = the same UINT64 type? 2. The header file does not define the meaning of each bit. As a reference, Md= eModulePkg/Include/Ppi/MemoryAttribute.h defines 3 bits can be used for mem= ory permission setting. @Ard Biesheuvel, Do you think that MdeModulePkg/Include/Ppi/MemoryAttribute.h misses a capab= ility to return the attributes of a given range of memory address? For your reference, Chao defined a lib API as below to serve the same reque= st: /** Finds the first of the length and memory properties of the memory region = corresponding to the specified base address. @param[in] BaseAddress To find the base address of the memory= region. @param[in, out] RegionLength Pointer holding: - At entry, the length of the memory = region expected to be found. - At exit, the length of the memory r= egion found. @param[out] RegionAttributes Properties of the memory region found. @retval EFI_SUCCESS The corresponding memory area was successfully fo= und EFI_NOT_FOUND No memory area found **/ EFI_STATUS EFIAPI GetMemoryRegionAttributes ( IN UINTN BaseAddress, IN OUT UINTN *RegionLength, OUT UINTN *RegionAttributes ); I hope we can align the lib API and PPI definition to one so that the lib A= PI can be dropped in future (not in this round of patch). Thanks, Ray ________________________________ From: Chao Li Sent: Wednesday, March 20, 2024 16:43 To: devel@edk2.groups.io Cc: Ni, Ray ; Kumar, Rahul R ; G= erd Hoffmann ; Leif Lindholm = ; Ard Biesheuvel ; Sami Mujawar ; Sunil V L ; Warkentin, Andrei Subject: [PATCH v2 07/13] UefiCpuPkg: Add CpuMmuLib.h to UefiCpuPkg Add a new header file CpuMmuLib.h, whitch is referenced from ArmPkg/Include/Library/ArmMmuLib.h. Currently, only support for LoongArch64 is added, and more architectures can be accommodated in the future. BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3D4734 Cc: Ray Ni Cc: Rahul Kumar Cc: Gerd Hoffmann Cc: Leif Lindholm Cc: Ard Biesheuvel Cc: Sami Mujawar Cc: Sunil V L Cc: Andrei Warkentin Signed-off-by: Chao Li Acked-by: Gerd Hoffmann --- UefiCpuPkg/Include/Library/CpuMmuLib.h | 55 ++++++++++++++++++++++++++ UefiCpuPkg/UefiCpuPkg.dec | 4 ++ 2 files changed, 59 insertions(+) create mode 100644 UefiCpuPkg/Include/Library/CpuMmuLib.h diff --git a/UefiCpuPkg/Include/Library/CpuMmuLib.h b/UefiCpuPkg/Include/Li= brary/CpuMmuLib.h new file mode 100644 index 0000000000..26d2d65524 --- /dev/null +++ b/UefiCpuPkg/Include/Library/CpuMmuLib.h @@ -0,0 +1,33 @@ +/** @file + + Copyright (c) 2024 Loongson Technology Corporation Limited. All rights r= eserved.
+ + SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#ifndef CPU_MMU_LIB_H_ +#define CPU_MMU_LIB_H_ + +#include + +/** + Sets the Attributes of the specified memory region. + + @param[in] BaseAddress The base address of the memory region to set = the Attributes. + @param[in] Length The length of the memory region to set the At= tributes. + @param[in] Attributes The Attributes to be set. + @param[in] AttributeMask Mask of memory attributes to take into accoun= t. + + @retval EFI_SUCCESS The Attributes was set successfully +**/ +EFI_STATUS +EFIAPI +SetMemoryRegionAttributes ( + IN EFI_PHYSICAL_ADDRESS BaseAddress, + IN UINTN Length, + IN UINTN Attributes, + IN UINT64 AttributeMask + ); + +#endif // CPU_MMU_LIB_H_ diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec index 571b59b36f..ca744fab55 100644 --- a/UefiCpuPkg/UefiCpuPkg.dec +++ b/UefiCpuPkg/UefiCpuPkg.dec @@ -72,6 +72,10 @@ [LibraryClasses.RISCV64] ## RiscVMmuLib|Include/Library/BaseRiscVMmuLib.h +[LibraryClasses.LoongArch64] + ## @libraryclass Provides functions for the memory management unit. + CpuMmuLib|Include/Library/CpuMmuLib.h + [Guids] gUefiCpuPkgTokenSpaceGuid =3D { 0xac05bf33, 0x995a, 0x4ed4, { 0xaa,= 0xb8, 0xef, 0x7a, 0xe8, 0xf, 0x5c, 0xb0 }} gMsegSmramGuid =3D { 0x5802bce4, 0xeeee, 0x4e33, { 0xa1,= 0x30, 0xeb, 0xad, 0x27, 0xf0, 0xe4, 0x39 }} -- 2.27.0 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#117074): https://edk2.groups.io/g/devel/message/117074 Mute This Topic: https://groups.io/mt/105041094/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- --_000_MN6PR11MB8244CF91FF08CA66533ABD678C362MN6PR11MB8244namp_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable
2 comments:
  1. Atrributes is type of UINTN but Mask is type of UINT64. Should they follow = the same UINT64 type?
  2. The header file does not define the meanin= g of each bit. As a reference, MdeModulePkg/Include/Ppi/MemoryAttribute.h defines 3 bits can be used for memory permission setti= ng.


@Ard Biesheuvel,
Do you think that MdeModulePkg/Include/Ppi/MemoryAttribute.h misses a capab= ility to return the attributes of a given range of memory address?
For your reference, Chao defined a lib API as below to serve the same reque= st:
/**
  Finds the first of the length and memory properties of the memory re= gion corresponding
  to the specified base address.
  @param[in]       BaseAddress       To = find the base address of the memory region.
  @param[in, out]  RegionLength      Pointer holdi= ng:
                     = ;                 - At entry, the l= ength of the memory region
                     = ;                   expected t= o be found.
                     = ;                 - At exit, the le= ngth of the memory region found.
  @param[out]      RegionAttributes  Properties of= the memory region found.
  @retval  EFI_SUCCESS    The corresponding memory area= was successfully found
           EFI_NOT_FOUND    No memo= ry area found
**/
EFI_STATUS
EFIAPI
GetMemoryRegionAttributes (
  IN     UINTN  BaseAddress,
  IN OUT UINTN  *RegionLength,
  OUT    UINTN  *RegionAttributes
  );

I hope we can align the lib API and PPI definition to one so that the lib A= PI can be dropped in future (not in this round of patch).

Thanks,
Ray
From: Chao Li <lichao@lo= ongson.cn>
Sent: Wednesday, March 20, 2024 16:43
To: devel@edk2.groups.io <devel@edk2.groups.io>
Cc: Ni, Ray <ray.ni@intel.com>; Kumar, Rahul R <rahul.r.kum= ar@intel.com>; Gerd Hoffmann <kraxel@redhat.com>; Leif Lindholm &l= t;quic_llindhol@quicinc.com>; Ard Biesheuvel <ardb+tianocore@kernel.o= rg>; Sami Mujawar <sami.mujawar@arm.com>; Sunil V L <sunilvl@ve= ntanamicro.com>; Warkentin, Andrei <andrei.warkentin@intel.com>
Subject: [PATCH v2 07/13] UefiCpuPkg: Add CpuMmuLib.h to UefiCpuPkg<= /font>
 
Add a new header file CpuMmuLib.h, whitch is refer= enced from
ArmPkg/Include/Library/ArmMmuLib.h. Currently, only support for
LoongArch64 is added, and more architectures can be accommodated in the
future.

BZ: https= ://bugzilla.tianocore.org/show_bug.cgi?id=3D4734

Cc: Ray Ni <ray.ni@intel.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Leif Lindholm <quic_llindhol@quicinc.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Sami Mujawar <sami.mujawar@arm.com>
Cc: Sunil V L <sunilvl@ventanamicro.com>
Cc: Andrei Warkentin <andrei.warkentin@intel.com>
Signed-off-by: Chao Li <lichao@loongson.cn>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
---
 UefiCpuPkg/Include/Library/CpuMmuLib.h | 55 +++++++++++++++++++++++++= +
 UefiCpuPkg/UefiCpuPkg.dec       &n= bsp;      |  4 ++
 2 files changed, 59 insertions(+)
 create mode 100644 UefiCpuPkg/Include/Library/CpuMmuLib.h

diff --git a/UefiCpuPkg/Include/Library/CpuMmuLib.h b/UefiCpuPkg/Include/Li= brary/CpuMmuLib.h
new file mode 100644
index 0000000000..26d2d65524
--- /dev/null
+++ b/UefiCpuPkg/Include/Library/CpuMmuLib.h
@@ -0,0 +1,33 @@
+/** @file
+
+  Copyright (c) 2024 Loongson Technology Corporation Limited. All rig= hts reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#ifndef CPU_MMU_LIB_H_
+#define CPU_MMU_LIB_H_
+
+#include <Uefi/UefiBaseType.h>
+
+/**
+  Sets the Attributes  of the specified memory region.
+
+  @param[in]  BaseAddress    The base address of = the memory region to set the Attributes.
+  @param[in]  Length       &n= bsp; The length of the memory region to set the Attributes.
+  @param[in]  Attributes     The Attributes = to be set.
+  @param[in]  AttributeMask  Mask of memory attributes to t= ake into account.
+
+  @retval  EFI_SUCCESS    The Attributes was set = successfully
+**/
+EFI_STATUS
+EFIAPI
+SetMemoryRegionAttributes (
+  IN EFI_PHYSICAL_ADDRESS  BaseAddress,
+  IN UINTN          = ;       Length,
+  IN UINTN          = ;       Attributes,
+  IN UINT64         &nbs= p;      AttributeMask
+  );
+
+#endif // CPU_MMU_LIB_H_
diff --git a/UefiCpuPkg/UefiCpuPkg.dec b/UefiCpuPkg/UefiCpuPkg.dec
index 571b59b36f..ca744fab55 100644
--- a/UefiCpuPkg/UefiCpuPkg.dec
+++ b/UefiCpuPkg/UefiCpuPkg.dec
@@ -72,6 +72,10 @@ [LibraryClasses.RISCV64]
   ##
   RiscVMmuLib|Include/Library/BaseRiscVMmuLib.h
 
+[LibraryClasses.LoongArch64]
+  ##  @libraryclass  Provides functions for the memory mana= gement unit.
+  CpuMmuLib|Include/Library/CpuMmuLib.h
+
 [Guids]
   gUefiCpuPkgTokenSpaceGuid      =3D { = 0xac05bf33, 0x995a, 0x4ed4, { 0xaa, 0xb8, 0xef, 0x7a, 0xe8, 0xf, 0x5c, 0xb0= }}
   gMsegSmramGuid        =          =3D { 0x5802bce4, 0xeeee, = 0x4e33, { 0xa1, 0x30, 0xeb, 0xad, 0x27, 0xf0, 0xe4, 0x39 }}
--
2.27.0

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