subject:"\[edk2\-devel\] \[PATCH edk2\-platforms v3 4\/4\] SbsaQemu\: disable XHCI in DSDT if not present"

Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

2023-10-18 Thread Marcin Juszkiewicz


W dniu 18.10.2023 o 10:47, Ard Biesheuvel pisze:

Nit: EDK2 Coding Style says that you need a space before (.

Ah, right. forgot to crucify the source.


Is it necessary to handle the result of Status?

EDK2 is full of handling Status on touching ACPI tables. So I followed.


Can you just do 'return DisableXhciOnOlderPlatVer();' instead?


Done. Sent v4.


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Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

2023-10-18 Thread Ard Biesheuvel

On Wed, 18 Oct 2023 at 07:56, Marcin Juszkiewicz
 wrote:
>
> W dniu 18.10.2023 o 05:28, Nhi Pham pisze:
> > Hi Marcin,
> >
> > There is a nitpicking below.
> >
> > Other than, it looks good to me.
> >
> > Acked-by: Nhi Pham 
> >
> >> a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
> >> b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
> >> index fd849ca1594b..cf6e534ca3a0 100644
> >> --- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
> >> +++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
> >> @@ -10,6 +10,7 @@
> >>   #include 
> >>   #include 
> >>   #include 
> >> +#include 
> >>   #include 
> >>   #include 
> >>   #include 
> >> @@ -682,6 +683,63 @@ AddGtdtTable (
> >> return Status;
> >>   }
> >> +EFI_STATUS
> >> +DisableXhciOnOlderPlatVer (
> >> +  VOID
> >> +  )
> >> +{
> >> +  EFI_STATUSStatus;
> >> +  EFI_ACPI_SDT_PROTOCOL   *AcpiSdtProtocol;
> >> +  EFI_ACPI_DESCRIPTION_HEADER *Table;
> >> +  UINTN   TableKey;
> >> +  UINTN   TableIndex;
> >> +  EFI_ACPI_HANDLE TableHandle;
> >> +
> >> +  Status = EFI_SUCCESS;
> >> +
> >> +  if ( PLATFORM_VERSION_LESS_THAN(0, 3) ) {
> >> +DEBUG ((DEBUG_ERROR, "Platform Version < 0.3 - disabling XHCI\n"));
> >> +Status = gBS->LocateProtocol (
> >> +&gEfiAcpiSdtProtocolGuid,
> >> +NULL,
> >> +(VOID **)&AcpiSdtProtocol
> >> +);
> >> +if (EFI_ERROR (Status)) {
> >> +  DEBUG ((DEBUG_ERROR, "Unable to locate ACPI table protocol\n"));
> >> +  return Status;
> >> +}
> >> +
> >> +TableIndex = 0;
> >> +Status = AcpiLocateTableBySignature (
> >> +   AcpiSdtProtocol,
> >> +
> >> EFI_ACPI_6_3_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,
> >> +   &TableIndex,
> >> +   &Table,
> >> +   &TableKey
> >> +   );
> >> +if (EFI_ERROR (Status)) {
> >> +  DEBUG ((DEBUG_ERROR, "ACPI DSDT table not found!\n"));
> >> +  ASSERT_EFI_ERROR (Status);
> >> +  return Status;
> >> +}
> >> +
> >> +Status = AcpiSdtProtocol->OpenSdt (TableKey, &TableHandle);
> >> +if (EFI_ERROR (Status)) {
> >> +  ASSERT_EFI_ERROR (Status);
> >> +  AcpiSdtProtocol->Close (TableHandle);
> >> +  return Status;
> >> +}
> >> +
> >> +AcpiAmlObjectUpdateInteger (AcpiSdtProtocol, TableHandle,
> >> "\\_SB.USB0.XHCI", 0x0);
> >> +
> >> +AcpiSdtProtocol->Close (TableHandle);
> >> +AcpiUpdateChecksum ((UINT8 *)Table, Table->Length);
> >> +  }
> >> +
> >> +  return Status;
> >> +}
> >> +
> >> +
> >>   EFI_STATUS
> >>   EFIAPI
> >>   InitializeSbsaQemuAcpiDxe (
> >> @@ -738,5 +796,7 @@ InitializeSbsaQemuAcpiDxe (
> >>   DEBUG ((DEBUG_ERROR, "Failed to add GTDT table\n"));
> >> }
> >> +  Status = DisableXhciOnOlderPlatVer();
> >
> > Nit: EDK2 Coding Style says that you need a space before (.
>
> Ah, right. forgot to crucify the source.
>
> > Is it necessary to handle the result of Status?
>
> EDK2 is full of handling Status on touching ACPI tables. So I followed.
>

Can you just do 'return DisableXhciOnOlderPlatVer();' instead?


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Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

2023-10-17 Thread Marcin Juszkiewicz


W dniu 18.10.2023 o 05:28, Nhi Pham pisze:

Hi Marcin,

There is a nitpicking below.

Other than, it looks good to me.

Acked-by: Nhi Pham 

a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c 
b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c

index fd849ca1594b..cf6e534ca3a0 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
@@ -10,6 +10,7 @@
  #include 
  #include 
  #include 
+#include 
  #include 
  #include 
  #include 
@@ -682,6 +683,63 @@ AddGtdtTable (
    return Status;
  }
+EFI_STATUS
+DisableXhciOnOlderPlatVer (
+  VOID
+  )
+{
+  EFI_STATUS    Status;
+  EFI_ACPI_SDT_PROTOCOL   *AcpiSdtProtocol;
+  EFI_ACPI_DESCRIPTION_HEADER *Table;
+  UINTN   TableKey;
+  UINTN   TableIndex;
+  EFI_ACPI_HANDLE TableHandle;
+
+  Status = EFI_SUCCESS;
+
+  if ( PLATFORM_VERSION_LESS_THAN(0, 3) ) {
+    DEBUG ((DEBUG_ERROR, "Platform Version < 0.3 - disabling XHCI\n"));
+    Status = gBS->LocateProtocol (
+    &gEfiAcpiSdtProtocolGuid,
+    NULL,
+    (VOID **)&AcpiSdtProtocol
+    );
+    if (EFI_ERROR (Status)) {
+  DEBUG ((DEBUG_ERROR, "Unable to locate ACPI table protocol\n"));
+  return Status;
+    }
+
+    TableIndex = 0;
+    Status = AcpiLocateTableBySignature (
+   AcpiSdtProtocol,
+   
EFI_ACPI_6_3_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,

+   &TableIndex,
+   &Table,
+   &TableKey
+   );
+    if (EFI_ERROR (Status)) {
+  DEBUG ((DEBUG_ERROR, "ACPI DSDT table not found!\n"));
+  ASSERT_EFI_ERROR (Status);
+  return Status;
+    }
+
+    Status = AcpiSdtProtocol->OpenSdt (TableKey, &TableHandle);
+    if (EFI_ERROR (Status)) {
+  ASSERT_EFI_ERROR (Status);
+  AcpiSdtProtocol->Close (TableHandle);
+  return Status;
+    }
+
+    AcpiAmlObjectUpdateInteger (AcpiSdtProtocol, TableHandle, 
"\\_SB.USB0.XHCI", 0x0);

+
+    AcpiSdtProtocol->Close (TableHandle);
+    AcpiUpdateChecksum ((UINT8 *)Table, Table->Length);
+  }
+
+  return Status;
+}
+
+
  EFI_STATUS
  EFIAPI
  InitializeSbsaQemuAcpiDxe (
@@ -738,5 +796,7 @@ InitializeSbsaQemuAcpiDxe (
  DEBUG ((DEBUG_ERROR, "Failed to add GTDT table\n"));
    }
+  Status = DisableXhciOnOlderPlatVer();


Nit: EDK2 Coding Style says that you need a space before (. 


Ah, right. forgot to crucify the source.


Is it necessary to handle the result of Status?


EDK2 is full of handling Status on touching ACPI tables. So I followed.



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Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

2023-10-17 Thread Nhi Pham via groups.io


Hi Marcin,

There is a nitpicking below.

Other than, it looks good to me.

Acked-by: Nhi Pham 

Regards,
Nhi

On 10/17/2023 8:23 PM, Marcin Juszkiewicz wrote:

We need platform version to be at least 0.3 to have XHCI
in virtual hardware. On older platforms there is non-working
EHCI which we ignore.

Set DSDT node to be disabled so operating system will not try
to initialize not-existing hardware.

Signed-off-by: Marcin Juszkiewicz 
---
  .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf  |  4 ++
  .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c| 60 
  Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl|  3 +-
  3 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf 
b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
index 7c7e08e0fd3a..d5ded892d6ea 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
@@ -29,6 +29,7 @@ [Packages]
Silicon/Qemu/SbsaQemu/SbsaQemu.dec
  
  [LibraryClasses]

+  AcpiLib
ArmLib
BaseMemoryLib
BaseLib
@@ -50,6 +51,8 @@ [Pcd]
gArmTokenSpaceGuid.PcdGicRedistributorsBase
gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdGicItsBase
gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdSmmuBase
+  gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdPlatformVersionMajor
+  gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdPlatformVersionMinor
  
  [Depex]

gEfiAcpiTableProtocolGuid   ## CONSUMES
@@ -59,6 +62,7 @@ [Guids]
  
  [Protocols]

gEfiAcpiTableProtocolGuid   ## CONSUMES
+  gEfiAcpiSdtProtocolGuid
  
  [FixedPcd]

gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorId
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c 
b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
index fd849ca1594b..cf6e534ca3a0 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
@@ -10,6 +10,7 @@
  #include 
  #include 
  #include 
+#include 
  #include 
  #include 
  #include 
@@ -682,6 +683,63 @@ AddGtdtTable (
return Status;
  }
  
+EFI_STATUS

+DisableXhciOnOlderPlatVer (
+  VOID
+  )
+{
+  EFI_STATUSStatus;
+  EFI_ACPI_SDT_PROTOCOL   *AcpiSdtProtocol;
+  EFI_ACPI_DESCRIPTION_HEADER *Table;
+  UINTN   TableKey;
+  UINTN   TableIndex;
+  EFI_ACPI_HANDLE TableHandle;
+
+  Status = EFI_SUCCESS;
+
+  if ( PLATFORM_VERSION_LESS_THAN(0, 3) ) {
+DEBUG ((DEBUG_ERROR, "Platform Version < 0.3 - disabling XHCI\n"));
+Status = gBS->LocateProtocol (
+&gEfiAcpiSdtProtocolGuid,
+NULL,
+(VOID **)&AcpiSdtProtocol
+);
+if (EFI_ERROR (Status)) {
+  DEBUG ((DEBUG_ERROR, "Unable to locate ACPI table protocol\n"));
+  return Status;
+}
+
+TableIndex = 0;
+Status = AcpiLocateTableBySignature (
+   AcpiSdtProtocol,
+   EFI_ACPI_6_3_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,
+   &TableIndex,
+   &Table,
+   &TableKey
+   );
+if (EFI_ERROR (Status)) {
+  DEBUG ((DEBUG_ERROR, "ACPI DSDT table not found!\n"));
+  ASSERT_EFI_ERROR (Status);
+  return Status;
+}
+
+Status = AcpiSdtProtocol->OpenSdt (TableKey, &TableHandle);
+if (EFI_ERROR (Status)) {
+  ASSERT_EFI_ERROR (Status);
+  AcpiSdtProtocol->Close (TableHandle);
+  return Status;
+}
+
+AcpiAmlObjectUpdateInteger (AcpiSdtProtocol, TableHandle, 
"\\_SB.USB0.XHCI", 0x0);
+
+AcpiSdtProtocol->Close (TableHandle);
+AcpiUpdateChecksum ((UINT8 *)Table, Table->Length);
+  }
+
+  return Status;
+}
+
+
  EFI_STATUS
  EFIAPI
  InitializeSbsaQemuAcpiDxe (
@@ -738,5 +796,7 @@ InitializeSbsaQemuAcpiDxe (
  DEBUG ((DEBUG_ERROR, "Failed to add GTDT table\n"));
}
  
+  Status = DisableXhciOnOlderPlatVer();


Nit: EDK2 Coding Style says that you need a space before (. Is it 
necessary to handle the result of Status?



+
return EFI_SUCCESS;
  }
diff --git a/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl 
b/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl
index 543b5782580a..ba3eefc975a5 100644
--- a/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl
+++ b/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl
@@ -73,8 +73,9 @@ DefinitionBlock ("DsdtTable.aml", "DSDT",
  Name (_HID, "PNP0D10")  // _HID: Hardware ID
  Name (_UID, 0x00)// _UID: Unique ID
  Name (_CCA, 0x01)// _CCA: Cache Coherency Attribute
+Name (XHCI, 0xF)// will be set using AcpiLib
  Method (_STA) {
-  Return (0xF)
+  Return (XHCI)
  }
  Method (_CRS, 0x0

[edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

2023-10-17 Thread Marcin Juszkiewicz

We need platform version to be at least 0.3 to have XHCI
in virtual hardware. On older platforms there is non-working
EHCI which we ignore.

Set DSDT node to be disabled so operating system will not try
to initialize not-existing hardware.

Signed-off-by: Marcin Juszkiewicz 
---
 .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf  |  4 ++
 .../Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c| 60 
 Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl|  3 +-
 3 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf 
b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
index 7c7e08e0fd3a..d5ded892d6ea 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.inf
@@ -29,6 +29,7 @@ [Packages]
   Silicon/Qemu/SbsaQemu/SbsaQemu.dec
 
 [LibraryClasses]
+  AcpiLib
   ArmLib
   BaseMemoryLib
   BaseLib
@@ -50,6 +51,8 @@ [Pcd]
   gArmTokenSpaceGuid.PcdGicRedistributorsBase
   gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdGicItsBase
   gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdSmmuBase
+  gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdPlatformVersionMajor
+  gArmVirtSbsaQemuPlatformTokenSpaceGuid.PcdPlatformVersionMinor
 
 [Depex]
   gEfiAcpiTableProtocolGuid   ## CONSUMES
@@ -59,6 +62,7 @@ [Guids]
 
 [Protocols]
   gEfiAcpiTableProtocolGuid   ## CONSUMES
+  gEfiAcpiSdtProtocolGuid
 
 [FixedPcd]
   gEfiMdeModulePkgTokenSpaceGuid.PcdAcpiDefaultCreatorId
diff --git a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c 
b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
index fd849ca1594b..cf6e534ca3a0 100644
--- a/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
+++ b/Silicon/Qemu/SbsaQemu/Drivers/SbsaQemuAcpiDxe/SbsaQemuAcpiDxe.c
@@ -10,6 +10,7 @@
 #include 
 #include 
 #include 
+#include 
 #include 
 #include 
 #include 
@@ -682,6 +683,63 @@ AddGtdtTable (
   return Status;
 }
 
+EFI_STATUS
+DisableXhciOnOlderPlatVer (
+  VOID
+  )
+{
+  EFI_STATUSStatus;
+  EFI_ACPI_SDT_PROTOCOL   *AcpiSdtProtocol;
+  EFI_ACPI_DESCRIPTION_HEADER *Table;
+  UINTN   TableKey;
+  UINTN   TableIndex;
+  EFI_ACPI_HANDLE TableHandle;
+
+  Status = EFI_SUCCESS;
+
+  if ( PLATFORM_VERSION_LESS_THAN(0, 3) ) {
+DEBUG ((DEBUG_ERROR, "Platform Version < 0.3 - disabling XHCI\n"));
+Status = gBS->LocateProtocol (
+&gEfiAcpiSdtProtocolGuid,
+NULL,
+(VOID **)&AcpiSdtProtocol
+);
+if (EFI_ERROR (Status)) {
+  DEBUG ((DEBUG_ERROR, "Unable to locate ACPI table protocol\n"));
+  return Status;
+}
+
+TableIndex = 0;
+Status = AcpiLocateTableBySignature (
+   AcpiSdtProtocol,
+   EFI_ACPI_6_3_DIFFERENTIATED_SYSTEM_DESCRIPTION_TABLE_SIGNATURE,
+   &TableIndex,
+   &Table,
+   &TableKey
+   );
+if (EFI_ERROR (Status)) {
+  DEBUG ((DEBUG_ERROR, "ACPI DSDT table not found!\n"));
+  ASSERT_EFI_ERROR (Status);
+  return Status;
+}
+
+Status = AcpiSdtProtocol->OpenSdt (TableKey, &TableHandle);
+if (EFI_ERROR (Status)) {
+  ASSERT_EFI_ERROR (Status);
+  AcpiSdtProtocol->Close (TableHandle);
+  return Status;
+}
+
+AcpiAmlObjectUpdateInteger (AcpiSdtProtocol, TableHandle, 
"\\_SB.USB0.XHCI", 0x0);
+
+AcpiSdtProtocol->Close (TableHandle);
+AcpiUpdateChecksum ((UINT8 *)Table, Table->Length);
+  }
+
+  return Status;
+}
+
+
 EFI_STATUS
 EFIAPI
 InitializeSbsaQemuAcpiDxe (
@@ -738,5 +796,7 @@ InitializeSbsaQemuAcpiDxe (
 DEBUG ((DEBUG_ERROR, "Failed to add GTDT table\n"));
   }
 
+  Status = DisableXhciOnOlderPlatVer();
+
   return EFI_SUCCESS;
 }
diff --git a/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl 
b/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl
index 543b5782580a..ba3eefc975a5 100644
--- a/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl
+++ b/Silicon/Qemu/SbsaQemu/AcpiTables/Dsdt.asl
@@ -73,8 +73,9 @@ DefinitionBlock ("DsdtTable.aml", "DSDT",
 Name (_HID, "PNP0D10")  // _HID: Hardware ID
 Name (_UID, 0x00)// _UID: Unique ID
 Name (_CCA, 0x01)// _CCA: Cache Coherency Attribute
+Name (XHCI, 0xF)// will be set using AcpiLib
 Method (_STA) {
-  Return (0xF)
+  Return (XHCI)
 }
 Method (_CRS, 0x0, Serialized) {
 Name (RBUF, ResourceTemplate() {

-- 
2.41.0



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Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

Re: [edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

[edk2-devel] [PATCH edk2-platforms v3 4/4] SbsaQemu: disable XHCI in DSDT if not present

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