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Wed, 22 Nov 2017 17:27:51 -0800 Received: from shsmsx102.ccr.corp.intel.com ([169.254.2.175]) by SHSMSX101.ccr.corp.intel.com ([169.254.1.159]) with mapi id 14.03.0319.002; Thu, 23 Nov 2017 09:27:23 +0800 From: "Yao, Jiewen" To: "Zeng, Star" , "edk2-devel@lists.01.org" Thread-Topic: [PATCH] IntelSiliconPkg IntelVTdDxe: Do not SetupVtd again Thread-Index: AQHTY/f9lrH9RRTfzUKjRSjyXq2Sj6MhLGZA Date: Thu, 23 Nov 2017 01:27:22 +0000 Message-ID: <74D8A39837DF1E4DA445A8C0B3885C503AA28DA9@shsmsx102.ccr.corp.intel.com> References: <1511399474-9580-1-git-send-email-star.zeng@intel.com> In-Reply-To: <1511399474-9580-1-git-send-email-star.zeng@intel.com> Accept-Language: zh-CN, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-titus-metadata-40: eyJDYXRlZ29yeUxhYmVscyI6IiIsIk1ldGFkYXRhIjp7Im5zIjoiaHR0cDpcL1wvd3d3LnRpdHVzLmNvbVwvbnNcL0ludGVsMyIsImlkIjoiNzNhMmQzNjktOTJiZi00ZjIzLWI2NTItNThhZWFmNWE1ZGIxIiwicHJvcHMiOlt7Im4iOiJDVFBDbGFzc2lmaWNhdGlvbiIsInZhbHMiOlt7InZhbHVlIjoiQ1RQX0lDIn1dfV19LCJTdWJqZWN0TGFiZWxzIjpbXSwiVE1DVmVyc2lvbiI6IjE3LjIuNS4xOCIsIlRydXN0ZWRMYWJlbEhhc2giOiJiNmY5STdHN2swUkhaeDFRVFNhclpjSHp3Z0F2RFVEVE03aDFtSmlpRlwveXVwS0VhcWgzOUxPTXBcL3VsRDZ0WWoifQ== x-ctpclassification: CTP_IC dlp-product: dlpe-windows dlp-version: 11.0.0.116 dlp-reaction: no-action x-originating-ip: [10.239.127.40] MIME-Version: 1.0 Subject: Re: [PATCH] IntelSiliconPkg IntelVTdDxe: Do not SetupVtd again X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 23 Nov 2017 01:23:36 -0000 Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Tested-by: Jiewen.yao@intel.com Reviewed-by: Jiewen.yao@intel.com > -----Original Message----- > From: Zeng, Star > Sent: Thursday, November 23, 2017 9:11 AM > To: edk2-devel@lists.01.org > Cc: Zeng, Star ; Yao, Jiewen > Subject: [PATCH] IntelSiliconPkg IntelVTdDxe: Do not SetupVtd again >=20 > Cc: Jiewen Yao > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Star Zeng > --- > IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c | 3 +++ > IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h | 5 +++-- > IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c | 7 ++++--- > 3 files changed, 10 insertions(+), 5 deletions(-) >=20 > diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c > b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c > index 6052a0aebe45..37b3b19bce90 100644 > --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c > +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.c > @@ -412,6 +412,9 @@ AcpiNotificationFunc ( >=20 > Status =3D GetDmarAcpiTable (); > if (EFI_ERROR (Status)) { > + if (Status =3D=3D EFI_ALREADY_STARTED) { > + gBS->CloseEvent (Event); > + } > return; > } > SetupVtd (); > diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h > b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h > index 0886647ea673..519a5ab00450 100644 > --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h > +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmaProtection.h > @@ -302,8 +302,9 @@ FindVtdIndexByPciDevice ( > /** > Get the DMAR ACPI table. >=20 > - @retval EFI_SUCCESS The DMAR ACPI table is got. > - @retval EFI_NOT_FOUND The DMAR ACPI table is not found. > + @retval EFI_SUCCESS The DMAR ACPI table is got. > + @retval EFI_ALREADY_STARTED The DMAR ACPI table has been got > previously. > + @retval EFI_NOT_FOUND The DMAR ACPI table is not found. > **/ > EFI_STATUS > GetDmarAcpiTable ( > diff --git a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c > b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c > index 81dec109675b..ce350bafbe3f 100644 > --- a/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c > +++ b/IntelSiliconPkg/Feature/VTd/IntelVTdDxe/DmarAcpiTable.c > @@ -978,8 +978,9 @@ FindAcpiPtr ( > /** > Get the DMAR ACPI table. >=20 > - @retval EFI_SUCCESS The DMAR ACPI table is got. > - @retval EFI_NOT_FOUND The DMAR ACPI table is not found. > + @retval EFI_SUCCESS The DMAR ACPI table is got. > + @retval EFI_ALREADY_STARTED The DMAR ACPI table has been got > previously. > + @retval EFI_NOT_FOUND The DMAR ACPI table is not found. > **/ > EFI_STATUS > GetDmarAcpiTable ( > @@ -990,7 +991,7 @@ GetDmarAcpiTable ( > EFI_STATUS Status; >=20 > if (mAcpiDmarTable !=3D NULL) { > - return EFI_SUCCESS; > + return EFI_ALREADY_STARTED; > } >=20 > AcpiTable =3D NULL; > -- > 2.7.0.windows.1