Reviewed-by: jiewen....@intel.com
> -----Original Message-----
> From: Zeng, Star
> Sent: Thursday, January 4, 2018 11:31 AM
> To: edk2-devel@lists.01.org
> Cc: Zeng, Star <star.z...@intel.com>; Yao, Jiewen <jiewen....@intel.com>
> Subject: [PATCH] IntelSiliconPkg IntelVTdDxe: Signal AcpiNotificationFunc()
> initially
>
> Signal AcpiNotificationFunc() initially for the case that
> DMAR table has been installed when creating event.
>
> Cc: Jiewen Yao <jiewen....@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Star Zeng <star.z...@intel.com>
> ---
> IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c | 16
> ++++++++++++----
> IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c | 3 +++
> 2 files changed, 15 insertions(+), 4 deletions(-)
>
> diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c
> b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c
> index 37b3b19bce90..648f64c20b77 100644
> --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c
> +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c
> @@ -1,6 +1,6 @@
> /** @file
>
> - Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
> + Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
> This program and the accompanying materials
> are licensed and made available under the terms and conditions of the BSD
> License
> which accompanies this distribution. The full text of the license may be
> found at
> @@ -473,7 +473,8 @@ InitializeDmaProtection (
> EFI_STATUS Status;
> EFI_EVENT ExitBootServicesEvent;
> EFI_EVENT LegacyBootEvent;
> - EFI_EVENT Event;
> + EFI_EVENT EventAcpi10;
> + EFI_EVENT EventAcpi20;
>
> Status = gBS->CreateEventEx (
> EVT_NOTIFY_SIGNAL,
> @@ -481,7 +482,7 @@ InitializeDmaProtection (
> AcpiNotificationFunc,
> NULL,
> &gEfiAcpi10TableGuid,
> - &Event
> + &EventAcpi10
> );
> ASSERT_EFI_ERROR (Status);
>
> @@ -491,10 +492,17 @@ InitializeDmaProtection (
> AcpiNotificationFunc,
> NULL,
> &gEfiAcpi20TableGuid,
> - &Event
> + &EventAcpi20
> );
> ASSERT_EFI_ERROR (Status);
>
> + //
> + // Signal the events initially for the case
> + // that DMAR table has been installed.
> + //
> + gBS->SignalEvent (EventAcpi20);
> + gBS->SignalEvent (EventAcpi10);
> +
> Status = gBS->CreateEventEx (
> EVT_NOTIFY_SIGNAL,
> TPL_CALLBACK,
> diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c
> b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c
> index ce350bafbe3f..b16bd93d53f1 100644
> --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c
> +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c
> @@ -1005,6 +1005,9 @@ GetDmarAcpiTable (
> &AcpiTable
> );
> }
> + if (EFI_ERROR (Status)) {
> + return EFI_NOT_FOUND;
> + }
> ASSERT (AcpiTable != NULL);
>
> mAcpiDmarTable = FindAcpiPtr (
> --
> 2.7.0.windows.1
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