[edk2] ArmVirtPkg: switch to generic ResetSystemRuntimeDxe

For obscure reasons, ARM platforms use a different implementation of
the ResetSystem() runtime service call than other platforms. So let's
switch all ArmVirtPkg platforms to the generic version instead.

Given that all platforms use an implementation of EfiResetSystemLib [as
consumed by the ResetRuntimeDxe in EmbeddedPkg that we are replacing]
which is unlikely to be depended upon by out of tree platforms, let's
simply modify this library into an implementation of ResetSystemLib
instead [which is what the generic driver in MdeModulePkg consumes]

This does mean we need to update all clients at the same time, which
is why all changes are part of the same patch.

As before, warm reset and platform specific reset are mapped onto
cold reset (which is the only thing PSCI implements, at least the
version we depend on). The new library function EnterS3WithImmediateWake()
is left unimplemented, as permitted by the ResetSystemLib library class.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

---
Note: this a no-whitespace diff

 ArmVirtPkg/ArmVirt.dsc.inc                                                 |   2 +-
 ArmVirtPkg/ArmVirtQemu.dsc                                                 |   2 +-
 ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc                                       |   2 +-
 ArmVirtPkg/ArmVirtQemuKernel.dsc                                           |   2 +-
 ArmVirtPkg/ArmVirtXen.dsc                                                  |   2 +-
 ArmVirtPkg/ArmVirtXen.fdf                                                  |   2 +-
 ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c   | 125 +++++++++++++-------
 ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf |   4 +-
 8 files changed, 89 insertions(+), 52 deletions(-)

-- 
2.9.3

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On Mon, Jul 03, 2017 at 02:53:45PM +0100, Ard Biesheuvel wrote:
> For obscure reasons, ARM platforms use a different implementation of

> the ResetSystem() runtime service call than other platforms. So let's

> switch all ArmVirtPkg platforms to the generic version instead.

> 

> Given that all platforms use an implementation of EfiResetSystemLib [as

> consumed by the ResetRuntimeDxe in EmbeddedPkg that we are replacing]

> which is unlikely to be depended upon by out of tree platforms, let's

> simply modify this library into an implementation of ResetSystemLib

> instead [which is what the generic driver in MdeModulePkg consumes]

> 

> This does mean we need to update all clients at the same time, which

> is why all changes are part of the same patch.

> 

> As before, warm reset and platform specific reset are mapped onto

> cold reset (which is the only thing PSCI implements, at least the

> version we depend on). The new library function EnterS3WithImmediateWake()

> is left unimplemented, as permitted by the ResetSystemLib library class.

> 

> Contributed-under: TianoCore Contribution Agreement 1.0

> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>


Looks good.
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>


> ---

> Note: this a no-whitespace diff

> 

>  ArmVirtPkg/ArmVirt.dsc.inc                                                 |   2 +-

>  ArmVirtPkg/ArmVirtQemu.dsc                                                 |   2 +-

>  ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc                                       |   2 +-

>  ArmVirtPkg/ArmVirtQemuKernel.dsc                                           |   2 +-

>  ArmVirtPkg/ArmVirtXen.dsc                                                  |   2 +-

>  ArmVirtPkg/ArmVirtXen.fdf                                                  |   2 +-

>  ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c   | 125 +++++++++++++-------

>  ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf |   4 +-

>  8 files changed, 89 insertions(+), 52 deletions(-)

> 

> diff --git a/ArmVirtPkg/ArmVirt.dsc.inc b/ArmVirtPkg/ArmVirt.dsc.inc

> index 5bf537635488..0b9b457b5619 100644

> --- a/ArmVirtPkg/ArmVirt.dsc.inc

> +++ b/ArmVirtPkg/ArmVirt.dsc.inc

> @@ -101,7 +101,7 @@ [LibraryClasses.common]

>  

>    PlatformPeiLib|ArmVirtPkg/Library/PlatformPeiLib/PlatformPeiLib.inf

>    MemoryInitPeiLib|ArmVirtPkg/Library/ArmVirtMemoryInitPeiLib/ArmVirtMemoryInitPeiLib.inf

> -  EfiResetSystemLib|ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf

> +  ResetSystemLib|ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf

>  

>    # ARM PL031 RTC Driver

>    RealTimeClockLib|ArmPlatformPkg/Library/PL031RealTimeClockLib/PL031RealTimeClockLib.inf

> diff --git a/ArmVirtPkg/ArmVirtQemu.dsc b/ArmVirtPkg/ArmVirtQemu.dsc

> index 10de57a4149e..e23a6d17bc44 100644

> --- a/ArmVirtPkg/ArmVirtQemu.dsc

> +++ b/ArmVirtPkg/ArmVirtQemu.dsc

> @@ -266,7 +266,7 @@ [Components.common]

>    MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf

>    MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf

>    MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf

> -  EmbeddedPkg/ResetRuntimeDxe/ResetRuntimeDxe.inf

> +  MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf

>    EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf {

>      <LibraryClasses>

>        NULL|ArmVirtPkg/Library/ArmVirtPL031FdtClientLib/ArmVirtPL031FdtClientLib.inf

> diff --git a/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc b/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc

> index ba2e7157cf2c..237b2d03a714 100644

> --- a/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc

> +++ b/ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc

> @@ -63,7 +63,7 @@ [FV.FvMain]

>    INF SecurityPkg/VariableAuthenticated/SecureBootConfigDxe/SecureBootConfigDxe.inf

>  !endif

>    INF MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf

> -  INF EmbeddedPkg/ResetRuntimeDxe/ResetRuntimeDxe.inf

> +  INF MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf

>    INF EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf

>    INF EmbeddedPkg/MetronomeDxe/MetronomeDxe.inf

>    INF MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf

> diff --git a/ArmVirtPkg/ArmVirtQemuKernel.dsc b/ArmVirtPkg/ArmVirtQemuKernel.dsc

> index 93ccb6df37e1..aa01debfda69 100644

> --- a/ArmVirtPkg/ArmVirtQemuKernel.dsc

> +++ b/ArmVirtPkg/ArmVirtQemuKernel.dsc

> @@ -257,7 +257,7 @@ [Components.common]

>    MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf

>    MdeModulePkg/Universal/FaultTolerantWriteDxe/FaultTolerantWriteDxe.inf

>    MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf

> -  EmbeddedPkg/ResetRuntimeDxe/ResetRuntimeDxe.inf

> +  MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf

>    EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf {

>      <LibraryClasses>

>        NULL|ArmVirtPkg/Library/ArmVirtPL031FdtClientLib/ArmVirtPL031FdtClientLib.inf

> diff --git a/ArmVirtPkg/ArmVirtXen.dsc b/ArmVirtPkg/ArmVirtXen.dsc

> index f832b3fb64f4..eb37137f271e 100644

> --- a/ArmVirtPkg/ArmVirtXen.dsc

> +++ b/ArmVirtPkg/ArmVirtXen.dsc

> @@ -167,7 +167,7 @@ [Components.common]

>    MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf

>  

>    MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf

> -  EmbeddedPkg/ResetRuntimeDxe/ResetRuntimeDxe.inf

> +  MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf

>    EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf

>    EmbeddedPkg/MetronomeDxe/MetronomeDxe.inf

>  

> diff --git a/ArmVirtPkg/ArmVirtXen.fdf b/ArmVirtPkg/ArmVirtXen.fdf

> index b591818f0b42..67fde73e696d 100644

> --- a/ArmVirtPkg/ArmVirtXen.fdf

> +++ b/ArmVirtPkg/ArmVirtXen.fdf

> @@ -140,7 +140,7 @@ [FV.FvMain]

>    INF MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf

>  

>    INF MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf

> -  INF EmbeddedPkg/ResetRuntimeDxe/ResetRuntimeDxe.inf

> +  INF MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf

>    INF EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf

>    INF EmbeddedPkg/MetronomeDxe/MetronomeDxe.inf

>    INF MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf

> diff --git a/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c b/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c

> index b94d1b0090c6..4b0db206e920 100644

> --- a/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c

> +++ b/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c

> @@ -23,7 +23,7 @@

>  

>  #include <Library/BaseLib.h>

>  #include <Library/DebugLib.h>

> -#include <Library/EfiResetSystemLib.h>

> +#include <Library/ResetSystemLib.h>

>  #include <Library/ArmSmcLib.h>

>  #include <Library/ArmHvcLib.h>

>  #include <Library/UefiBootServicesTableLib.h>

> @@ -67,49 +67,75 @@ ArmPsciResetSystemLibConstructor (

>  }

>  

>  /**

> -  Resets the entire platform.

> -

> -  @param  ResetType             The type of reset to perform.

> -  @param  ResetStatus           The status code for the reset.

> -  @param  DataSize              The size, in bytes, of WatchdogData.

> -  @param  ResetData             For a ResetType of EfiResetCold, EfiResetWarm, or

> -                                EfiResetShutdown the data buffer starts with a Null-terminated

> -                                Unicode string, optionally followed by additional binary data.

> +  This function causes a system-wide reset (cold reset), in which

> +  all circuitry within the system returns to its initial state. This type of reset

> +  is asynchronous to system operation and operates without regard to

> +  cycle boundaries.

>  

> +  If this function returns, it means that the system does not support cold reset.

>  **/

> -EFI_STATUS

> +VOID

>  EFIAPI

> -LibResetSystem (

> -  IN EFI_RESET_TYPE   ResetType,

> -  IN EFI_STATUS       ResetStatus,

> -  IN UINTN            DataSize,

> -  IN CHAR16           *ResetData OPTIONAL

> +ResetCold (

> +  VOID

>    )

>  {

>    ARM_SMC_ARGS ArmSmcArgs;

>    ARM_HVC_ARGS ArmHvcArgs;

>  

> -  switch (ResetType) {

> -

> -  case EfiResetPlatformSpecific:

> -    // Map the platform specific reset as reboot

> -  case EfiResetWarm:

> -    // Map a warm reset into a cold reset

> -  case EfiResetCold:

>    // Send a PSCI 0.2 SYSTEM_RESET command

>    ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET;

>    ArmHvcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_RESET;

> +

> +  switch (mArmPsciMethod) {

> +  case 1:

> +    ArmCallHvc (&ArmHvcArgs);

>      break;

> -  case EfiResetShutdown:

> -    // Send a PSCI 0.2 SYSTEM_OFF command

> -    ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;

> -    ArmHvcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;

> +

> +  case 2:

> +    ArmCallSmc (&ArmSmcArgs);

>      break;

> +

>    default:

> -    ASSERT (FALSE);

> -    return EFI_UNSUPPORTED;

> +    DEBUG ((EFI_D_ERROR, "%a: no PSCI method defined\n", __FUNCTION__));

> +  }

> +}

> +

> +/**

> +  This function causes a system-wide initialization (warm reset), in which all processors

> +  are set to their initial state. Pending cycles are not corrupted.

> +

> +  If this function returns, it means that the system does not support warm reset.

> +**/

> +VOID

> +EFIAPI

> +ResetWarm (

> +  VOID

> +  )

> +{

> +  // Map a warm reset into a cold reset

> +  ResetCold ();

>  }

>  

> +/**

> +  This function causes the system to enter a power state equivalent

> +  to the ACPI G2/S5 or G3 states.

> +

> +  If this function returns, it means that the system does not support shutdown reset.

> +**/

> +VOID

> +EFIAPI

> +ResetShutdown (

> +  VOID

> +  )

> +{

> +  ARM_SMC_ARGS ArmSmcArgs;

> +  ARM_HVC_ARGS ArmHvcArgs;

> +

> +  // Send a PSCI 0.2 SYSTEM_OFF command

> +  ArmSmcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;

> +  ArmHvcArgs.Arg0 = ARM_SMC_ID_PSCI_SYSTEM_OFF;

> +

>    switch (mArmPsciMethod) {

>    case 1:

>      ArmCallHvc (&ArmHvcArgs);

> @@ -121,30 +147,41 @@ LibResetSystem (

>  

>    default:

>      DEBUG ((EFI_D_ERROR, "%a: no PSCI method defined\n", __FUNCTION__));

> -    return EFI_UNSUPPORTED;

>    }

> -

> -  // We should never be here

> -  DEBUG ((EFI_D_ERROR, "%a: PSCI Reset failed\n", __FUNCTION__));

> -  CpuDeadLoop ();

> -  return EFI_UNSUPPORTED;

>  }

>  

>  /**

> -  Initialize any infrastructure required for LibResetSystem () to function.

> +  This function causes the system to enter S3 and then wake up immediately.

>  

> -  @param  ImageHandle   The firmware allocated handle for the EFI image.

> -  @param  SystemTable   A pointer to the EFI System Table.

> -

> -  @retval EFI_SUCCESS   The constructor always returns EFI_SUCCESS.

> +  If this function returns, it means that the system does not support S3 feature.

> +**/

> +VOID

> +EFIAPI

> +EnterS3WithImmediateWake (

> +  VOID

> +  )

> +{

> +  // not implemented

> +}

>  

> +/**

> +  This function causes a systemwide reset. The exact type of the reset is

> +  defined by the EFI_GUID that follows the Null-terminated Unicode string passed

> +  into ResetData. If the platform does not recognize the EFI_GUID in ResetData

> +  the platform must pick a supported reset type to perform.The platform may

> +  optionally log the parameters from any non-normal reset that occurs.

> +

> +  @param[in]  DataSize   The size, in bytes, of ResetData.

> +  @param[in]  ResetData  The data buffer starts with a Null-terminated string,

> +                         followed by the EFI_GUID.

>  **/

> -EFI_STATUS

> +VOID

>  EFIAPI

> -LibInitializeResetSystem (

> -  IN EFI_HANDLE        ImageHandle,

> -  IN EFI_SYSTEM_TABLE  *SystemTable

> +ResetPlatformSpecific (

> +  IN UINTN   DataSize,

> +  IN VOID    *ResetData

>    )

>  {

> -  return EFI_SUCCESS;

> +  // Map the platform specific reset as reboot

> +  ResetCold ();

>  }

> diff --git a/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf b/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf

> index 9dc515aee52b..f28aed3fb1c2 100644

> --- a/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf

> +++ b/ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf

> @@ -20,7 +20,7 @@ [Defines]

>    FILE_GUID                      = c81d76ed-66fa-44a3-ac4a-f163120187a9

>    MODULE_TYPE                    = BASE

>    VERSION_STRING                 = 1.0

> -  LIBRARY_CLASS                  = EfiResetSystemLib|DXE_DRIVER DXE_RUNTIME_DRIVER

> +  LIBRARY_CLASS                  = ResetSystemLib|DXE_DRIVER DXE_RUNTIME_DRIVER

>    CONSTRUCTOR                    = ArmPsciResetSystemLibConstructor

>  

>  [Sources]

> @@ -29,8 +29,8 @@ [Sources]

>  [Packages]

>    ArmPkg/ArmPkg.dec

>    ArmVirtPkg/ArmVirtPkg.dec

> +  MdeModulePkg/MdeModulePkg.dec

>    MdePkg/MdePkg.dec

> -  EmbeddedPkg/EmbeddedPkg.dec

>  

>  [LibraryClasses]

>    ArmSmcLib

> -- 

> 2.9.3

> 

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On 07/03/17 15:53, Ard Biesheuvel wrote:
> For obscure reasons, ARM platforms use a different implementation of

> the ResetSystem() runtime service call than other platforms. So let's

> switch all ArmVirtPkg platforms to the generic version instead.

> 

> Given that all platforms use an implementation of EfiResetSystemLib [as

> consumed by the ResetRuntimeDxe in EmbeddedPkg that we are replacing]

> which is unlikely to be depended upon by out of tree platforms, let's

> simply modify this library into an implementation of ResetSystemLib

> instead [which is what the generic driver in MdeModulePkg consumes]

> 

> This does mean we need to update all clients at the same time, which

> is why all changes are part of the same patch.

> 

> As before, warm reset and platform specific reset are mapped onto

> cold reset (which is the only thing PSCI implements, at least the

> version we depend on). The new library function EnterS3WithImmediateWake()

> is left unimplemented, as permitted by the ResetSystemLib library class.

> 

> Contributed-under: TianoCore Contribution Agreement 1.0

> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

> ---

> Note: this a no-whitespace diff

> 

>  ArmVirtPkg/ArmVirt.dsc.inc                                                 |   2 +-

>  ArmVirtPkg/ArmVirtQemu.dsc                                                 |   2 +-

>  ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc                                       |   2 +-

>  ArmVirtPkg/ArmVirtQemuKernel.dsc                                           |   2 +-

>  ArmVirtPkg/ArmVirtXen.dsc                                                  |   2 +-

>  ArmVirtPkg/ArmVirtXen.fdf                                                  |   2 +-

>  ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c   | 125 +++++++++++++-------

>  ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf |   4 +-

>  8 files changed, 89 insertions(+), 52 deletions(-)


Reviewed-by: Laszlo Ersek <lersek@redhat.com>


Thanks, Ard!
Laszlo

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On 3 July 2017 at 18:44, Laszlo Ersek <lersek@redhat.com> wrote:
> On 07/03/17 15:53, Ard Biesheuvel wrote:

>> For obscure reasons, ARM platforms use a different implementation of

>> the ResetSystem() runtime service call than other platforms. So let's

>> switch all ArmVirtPkg platforms to the generic version instead.

>>

>> Given that all platforms use an implementation of EfiResetSystemLib [as

>> consumed by the ResetRuntimeDxe in EmbeddedPkg that we are replacing]

>> which is unlikely to be depended upon by out of tree platforms, let's

>> simply modify this library into an implementation of ResetSystemLib

>> instead [which is what the generic driver in MdeModulePkg consumes]

>>

>> This does mean we need to update all clients at the same time, which

>> is why all changes are part of the same patch.

>>

>> As before, warm reset and platform specific reset are mapped onto

>> cold reset (which is the only thing PSCI implements, at least the

>> version we depend on). The new library function EnterS3WithImmediateWake()

>> is left unimplemented, as permitted by the ResetSystemLib library class.

>>

>> Contributed-under: TianoCore Contribution Agreement 1.0

>> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>

>> ---

>> Note: this a no-whitespace diff

>>

>>  ArmVirtPkg/ArmVirt.dsc.inc                                                 |   2 +-

>>  ArmVirtPkg/ArmVirtQemu.dsc                                                 |   2 +-

>>  ArmVirtPkg/ArmVirtQemuFvMain.fdf.inc                                       |   2 +-

>>  ArmVirtPkg/ArmVirtQemuKernel.dsc                                           |   2 +-

>>  ArmVirtPkg/ArmVirtXen.dsc                                                  |   2 +-

>>  ArmVirtPkg/ArmVirtXen.fdf                                                  |   2 +-

>>  ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.c   | 125 +++++++++++++-------

>>  ArmVirtPkg/Library/ArmVirtPsciResetSystemLib/ArmVirtPsciResetSystemLib.inf |   4 +-

>>  8 files changed, 89 insertions(+), 52 deletions(-)

>

> Reviewed-by: Laszlo Ersek <lersek@redhat.com>

>


Thanks guys

Pushed as 7b1dc6c569a8
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