From nobody Sun Feb 8 21:48:56 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) client-ip=66.175.222.108; envelope-from=bounce+27952+87477+1787277+3901457@groups.io; helo=mail02.groups.io; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+87477+1787277+3901457@groups.io; dmarc=fail(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1647050097; cv=none; d=zohomail.com; s=zohoarc; b=WuKyWNNCBTSiA6Qdxtep2BUejLO7PzKw5QM6gC0vqJwM5w34NL3RmSBOWEv5y5tMfnwjE8Y+Soz6P+1sic4fwD+cjFJ/jGhJY4tni/rE4d+5Dt2ENMXqbOpeBBrb6tBr+BPquoXW8LStHarj9JS0S8nOy7GViQFeQnetRWQ6sS8= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1647050097; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Id:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:References:Sender:Subject:To; bh=krPQGpF9lZePLUBFfWg+Tsy2Y70CEpzmSkwg6SLSOvU=; b=f6z8bUlOoENWrN5xl7xbRRRIisIVKRh730OB3WzpE82PQJYwn4/N6F+4yU2BCeUdQ0CQvANDtEqPascEOXd2g6P/NQoKTWHG5U2EeRubIkmLzDn2fvGaXDaqCWMQ7bYthLYLFsD2dLEJotyMuNI0Gn95760SwgQFF+L6FR8txh4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce+27952+87477+1787277+3901457@groups.io; dmarc=fail header.from= (p=none dis=none) Received: from mail02.groups.io (mail02.groups.io [66.175.222.108]) by mx.zohomail.com with SMTPS id 1647050097342655.080401089892; Fri, 11 Mar 2022 17:54:57 -0800 (PST) Return-Path: X-Received: by 127.0.0.2 with SMTP id egoYYY1788612xV18rXbUfmb; Fri, 11 Mar 2022 17:54:57 -0800 X-Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mx.groups.io with SMTP id smtpd.web08.919.1647050070631942533 for ; Fri, 11 Mar 2022 17:54:56 -0800 X-IronPort-AV: E=McAfee;i="6200,9189,10283"; a="255894285" X-IronPort-AV: E=Sophos;i="5.90,175,1643702400"; d="scan'208";a="255894285" X-Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2022 17:54:56 -0800 X-IronPort-AV: E=Sophos;i="5.90,175,1643702400"; d="scan'208";a="555564375" X-Received: from mxu9-mobl1.ccr.corp.intel.com ([10.255.29.254]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Mar 2022 17:54:53 -0800 From: "Min Xu" To: devel@edk2.groups.io Cc: Min Xu , Michael D Kinney , Liming Gao , Zhiguang Liu , Brijesh Singh , Erdem Aktas , James Bottomley , Jiewen Yao , Tom Lendacky , Gerd Hoffmann Subject: [edk2-devel] [PATCH V8 09/47] MdePkg: Support IoFifo for Tdx guest in BaseIoLibIntrinsic Date: Sat, 12 Mar 2022 09:53:34 +0800 Message-Id: <9d2f54e42ae4560cdf0f2de20eff7a79e60391a8.1647047482.git.min.m.xu@intel.com> In-Reply-To: References: MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,min.m.xu@intel.com X-Gm-Message-State: MeQhs7Vdf9ur4g16bpN2mBFFx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1647050097; bh=fqmZaulDaSusCD99ze7sdNJk4vHoOdRNf6MYwZD4HVA=; h=Cc:Date:From:Reply-To:Subject:To; b=ipWeVfwfwPScgsJNhhR6U1mWZZcImVb/5tcnuTW+fukDnqQRlTbLnEDfk1d2vTcyFxU cH1B8iSPtWTayi+wbJnDhfHZ6N74SD4AiYmyhcEq7EJjn6X9/RHYedTw3soHlRH38Ku9O R8cgzp0JKt8UZmvtkRW8Z7HUhiRW8C/flVw= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1647050097962100006 Content-Type: text/plain; charset="utf-8" RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3D3429 Previously IoFifo functions are in X64/IoFifoSev.nasm which supports both SEV guest and Legacy guest. IoLibFifo.c is introduced to support SEV/TDX/Legacy guest in one binary. It checks the guest type in runtime and call corresponding functions then. Cc: Michael D Kinney Cc: Liming Gao Cc: Zhiguang Liu Cc: Brijesh Singh Cc: Erdem Aktas Cc: James Bottomley Cc: Jiewen Yao Cc: Tom Lendacky Cc: Gerd Hoffmann Acked-by: Gerd Hoffmann Reviewed-by: Liming Gao Signed-off-by: Min Xu --- .../BaseIoLibIntrinsicSev.inf | 2 + MdePkg/Library/BaseIoLibIntrinsic/IoLibFifo.c | 217 ++++++++++++++++++ MdePkg/Library/BaseIoLibIntrinsic/IoLibSev.h | 166 ++++++++++++++ .../BaseIoLibIntrinsic/X64/IoFifoSev.nasm | 34 +-- 4 files changed, 402 insertions(+), 17 deletions(-) create mode 100644 MdePkg/Library/BaseIoLibIntrinsic/IoLibFifo.c create mode 100644 MdePkg/Library/BaseIoLibIntrinsic/IoLibSev.h diff --git a/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicSev.inf b/= MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicSev.inf index a74e54bee8b5..7fe1c60f046e 100644 --- a/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicSev.inf +++ b/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicSev.inf @@ -31,6 +31,7 @@ BaseIoLibIntrinsicInternal.h IoHighLevel.c IoLibTdx.h + IoLibSev.h =20 [Sources.IA32] IoLibGcc.c | GCC @@ -44,6 +45,7 @@ IoLibMsc.c | MSFT IoLib.c IoLibInternalTdx.c + IoLibFifo.c X64/IoFifoSev.nasm =20 [Packages] diff --git a/MdePkg/Library/BaseIoLibIntrinsic/IoLibFifo.c b/MdePkg/Library= /BaseIoLibIntrinsic/IoLibFifo.c new file mode 100644 index 000000000000..9a94bc6a054c --- /dev/null +++ b/MdePkg/Library/BaseIoLibIntrinsic/IoLibFifo.c @@ -0,0 +1,217 @@ +/** @file + IoFifo read/write routines. + + Copyright (c) 2021, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent + +**/ + +#include "BaseIoLibIntrinsicInternal.h" +#include "IoLibSev.h" +#include "IoLibTdx.h" +#include +#include + +/** + Reads an 8-bit I/O port fifo into a block of memory. + + Reads the 8-bit I/O fifo port specified by Port. + The port is read Count times, and the read data is + stored in the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + In TDX a serial of TdIoRead8 is invoked to read the I/O port fifo. + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +IoReadFifo8 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ) +{ + if (IsTdxGuest ()) { + TdIoReadFifo8 (Port, Count, Buffer); + } else { + SevIoReadFifo8 (Port, Count, Buffer); + } +} + +/** + Writes a block of memory into an 8-bit I/O port fifo. + + Writes the 8-bit I/O fifo port specified by Port. + The port is written Count times, and the write data is + retrieved from the provided Buffer. + + This function must guarantee that all I/O write and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + In TDX a serial of TdIoWrite8 is invoked to write data to the I/O port. + + @param Port The I/O port to write. + @param Count The number of times to write I/O port. + @param Buffer The buffer to retrieve the write data from. + +**/ +VOID +EFIAPI +IoWriteFifo8 ( + IN UINTN Port, + IN UINTN Count, + IN VOID *Buffer + ) +{ + if (IsTdxGuest ()) { + TdIoWriteFifo8 (Port, Count, Buffer); + } else { + SevIoWriteFifo8 (Port, Count, Buffer); + } +} + +/** + Reads a 16-bit I/O port fifo into a block of memory. + + Reads the 16-bit I/O fifo port specified by Port. + The port is read Count times, and the read data is + stored in the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 16-bit I/O port operations are not supported, then ASSERT(). + + In TDX a serial of TdIoRead16 is invoked to read data from the I/O port. + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +IoReadFifo16 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ) +{ + if (IsTdxGuest ()) { + TdIoReadFifo16 (Port, Count, Buffer); + } else { + SevIoReadFifo16 (Port, Count, Buffer); + } +} + +/** + Writes a block of memory into a 16-bit I/O port fifo. + + Writes the 16-bit I/O fifo port specified by Port. + The port is written Count times, and the write data is + retrieved from the provided Buffer. + + This function must guarantee that all I/O write and write operations are + serialized. + + If 16-bit I/O port operations are not supported, then ASSERT(). + + In TDX a serial of TdIoWrite16 is invoked to write data to the I/O port. + + @param Port The I/O port to write. + @param Count The number of times to write I/O port. + @param Buffer The buffer to retrieve the write data from. + +**/ +VOID +EFIAPI +IoWriteFifo16 ( + IN UINTN Port, + IN UINTN Count, + IN VOID *Buffer + ) +{ + if (IsTdxGuest ()) { + TdIoWriteFifo16 (Port, Count, Buffer); + } else { + SevIoWriteFifo16 (Port, Count, Buffer); + } +} + +/** + Reads a 32-bit I/O port fifo into a block of memory. + + Reads the 32-bit I/O fifo port specified by Port. + The port is read Count times, and the read data is + stored in the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 32-bit I/O port operations are not supported, then ASSERT(). + + In TDX a serial of TdIoRead32 is invoked to read data from the I/O port. + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +IoReadFifo32 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ) +{ + if (IsTdxGuest ()) { + TdIoReadFifo32 (Port, Count, Buffer); + } else { + SevIoReadFifo32 (Port, Count, Buffer); + } +} + +/** + Writes a block of memory into a 32-bit I/O port fifo. + + Writes the 32-bit I/O fifo port specified by Port. + The port is written Count times, and the write data is + retrieved from the provided Buffer. + + This function must guarantee that all I/O write and write operations are + serialized. + + If 32-bit I/O port operations are not supported, then ASSERT(). + + In TDX a serial of TdIoWrite32 is invoked to write data to the I/O port. + + @param Port The I/O port to write. + @param Count The number of times to write I/O port. + @param Buffer The buffer to retrieve the write data from. + +**/ +VOID +EFIAPI +IoWriteFifo32 ( + IN UINTN Port, + IN UINTN Count, + IN VOID *Buffer + ) +{ + if (IsTdxGuest ()) { + TdIoWriteFifo32 (Port, Count, Buffer); + } else { + SevIoWriteFifo32 (Port, Count, Buffer); + } +} diff --git a/MdePkg/Library/BaseIoLibIntrinsic/IoLibSev.h b/MdePkg/Library/= BaseIoLibIntrinsic/IoLibSev.h new file mode 100644 index 000000000000..6d7cafcff27a --- /dev/null +++ b/MdePkg/Library/BaseIoLibIntrinsic/IoLibSev.h @@ -0,0 +1,166 @@ +/** @file + Header file for SEV IO library. + + Copyright (c) 2021, Intel Corporation. All rights reserved.
+ SPDX-License-Identifier: BSD-2-Clause-Patent +**/ + +#ifndef IOLIB_SEV_H_ +#define IOLIB_SEV_H_ + +#include + +#include +#include + +/** + Reads an 8-bit I/O port fifo into a block of memory. + + Reads the 8-bit I/O fifo port specified by Port. + The port is read Count times, and the read data is + stored in the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +SevIoReadFifo8 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ); + +/** + Writes a block of memory into an 8-bit I/O port fifo. + + Writes the 8-bit I/O fifo port specified by Port. + The port is written Count times, and the write data is + retrieved from the provided Buffer. + + This function must guarantee that all I/O write and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to write. + @param Count The number of times to write I/O port. + @param Buffer The buffer to retrieve the write data from. + +**/ +VOID +EFIAPI +SevIoWriteFifo8 ( + IN UINTN Port, + IN UINTN Count, + IN VOID *Buffer + ); + +/** + Reads an 8-bit I/O port fifo into a block of memory. + + Reads the 8-bit I/O fifo port specified by Port. + The port is read Count times, and the read data is + stored in the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +SevIoReadFifo16 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ); + +/** + Writes a block of memory into an 8-bit I/O port fifo. + + Writes the 8-bit I/O fifo port specified by Port. + The port is written Count times, and the write data is + retrieved from the provided Buffer. + + This function must guarantee that all I/O write and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to write. + @param Count The number of times to write I/O port. + @param Buffer The buffer to retrieve the write data from. + +**/ +VOID +EFIAPI +SevIoWriteFifo16 ( + IN UINTN Port, + IN UINTN Count, + IN VOID *Buffer + ); + +/** + Reads an 8-bit I/O port fifo into a block of memory. + + Reads the 8-bit I/O fifo port specified by Port. + The port is read Count times, and the read data is + stored in the provided Buffer. + + This function must guarantee that all I/O read and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to read. + @param Count The number of times to read I/O port. + @param Buffer The buffer to store the read data into. + +**/ +VOID +EFIAPI +SevIoReadFifo32 ( + IN UINTN Port, + IN UINTN Count, + OUT VOID *Buffer + ); + +/** + Writes a block of memory into an 8-bit I/O port fifo. + + Writes the 8-bit I/O fifo port specified by Port. + The port is written Count times, and the write data is + retrieved from the provided Buffer. + + This function must guarantee that all I/O write and write operations are + serialized. + + If 8-bit I/O port operations are not supported, then ASSERT(). + + @param Port The I/O port to write. + @param Count The number of times to write I/O port. + @param Buffer The buffer to retrieve the write data from. + +**/ +VOID +EFIAPI +SevIoWriteFifo32 ( + IN UINTN Port, + IN UINTN Count, + IN VOID *Buffer + ); + +#endif diff --git a/MdePkg/Library/BaseIoLibIntrinsic/X64/IoFifoSev.nasm b/MdePkg/= Library/BaseIoLibIntrinsic/X64/IoFifoSev.nasm index 106f8881c55c..d02286b4d518 100644 --- a/MdePkg/Library/BaseIoLibIntrinsic/X64/IoFifoSev.nasm +++ b/MdePkg/Library/BaseIoLibIntrinsic/X64/IoFifoSev.nasm @@ -67,14 +67,14 @@ ASM_PFX(SevNoRepIo): ;-------------------------------------------------------------------------= ----- ; VOID ; EFIAPI -; IoReadFifo8 ( +; SevIoReadFifo8 ( ; IN UINTN Port, // rcx ; IN UINTN Size, // rdx ; OUT VOID *Buffer // r8 ; ); ;-------------------------------------------------------------------------= ----- -global ASM_PFX(IoReadFifo8) -ASM_PFX(IoReadFifo8): +global ASM_PFX(SevIoReadFifo8) +ASM_PFX(SevIoReadFifo8): xchg rcx, rdx xchg rdi, r8 ; rdi: buffer address; r8: save rdi =20 @@ -103,14 +103,14 @@ ASM_PFX(IoReadFifo8): ;-------------------------------------------------------------------------= ----- ; VOID ; EFIAPI -; IoReadFifo16 ( +; SevIoReadFifo16 ( ; IN UINTN Port, // rcx ; IN UINTN Size, // rdx ; OUT VOID *Buffer // r8 ; ); ;-------------------------------------------------------------------------= ----- -global ASM_PFX(IoReadFifo16) -ASM_PFX(IoReadFifo16): +global ASM_PFX(SevIoReadFifo16) +ASM_PFX(SevIoReadFifo16): xchg rcx, rdx xchg rdi, r8 ; rdi: buffer address; r8: save rdi =20 @@ -139,14 +139,14 @@ ASM_PFX(IoReadFifo16): ;-------------------------------------------------------------------------= ----- ; VOID ; EFIAPI -; IoReadFifo32 ( +; SevIoReadFifo32 ( ; IN UINTN Port, // rcx ; IN UINTN Size, // rdx ; OUT VOID *Buffer // r8 ; ); ;-------------------------------------------------------------------------= ----- -global ASM_PFX(IoReadFifo32) -ASM_PFX(IoReadFifo32): +global ASM_PFX(SevIoReadFifo32) +ASM_PFX(SevIoReadFifo32): xchg rcx, rdx xchg rdi, r8 ; rdi: buffer address; r8: save rdi =20 @@ -181,8 +181,8 @@ ASM_PFX(IoReadFifo32): ; IN VOID *Buffer // r8 ; ); ;-------------------------------------------------------------------------= ----- -global ASM_PFX(IoWriteFifo8) -ASM_PFX(IoWriteFifo8): +global ASM_PFX(SevIoWriteFifo8) +ASM_PFX(SevIoWriteFifo8): xchg rcx, rdx xchg rsi, r8 ; rsi: buffer address; r8: save rsi =20 @@ -211,14 +211,14 @@ ASM_PFX(IoWriteFifo8): ;-------------------------------------------------------------------------= ----- ; VOID ; EFIAPI -; IoWriteFifo16 ( +; SevIoWriteFifo16 ( ; IN UINTN Port, // rcx ; IN UINTN Size, // rdx ; IN VOID *Buffer // r8 ; ); ;-------------------------------------------------------------------------= ----- -global ASM_PFX(IoWriteFifo16) -ASM_PFX(IoWriteFifo16): +global ASM_PFX(SevIoWriteFifo16) +ASM_PFX(SevIoWriteFifo16): xchg rcx, rdx xchg rsi, r8 ; rsi: buffer address; r8: save rsi =20 @@ -247,14 +247,14 @@ ASM_PFX(IoWriteFifo16): ;-------------------------------------------------------------------------= ----- ; VOID ; EFIAPI -; IoWriteFifo32 ( +; SevIoWriteFifo32 ( ; IN UINTN Port, // rcx ; IN UINTN Size, // rdx ; IN VOID *Buffer // r8 ; ); ;-------------------------------------------------------------------------= ----- -global ASM_PFX(IoWriteFifo32) -ASM_PFX(IoWriteFifo32): +global ASM_PFX(SevIoWriteFifo32) +ASM_PFX(SevIoWriteFifo32): xchg rcx, rdx xchg rsi, r8 ; rsi: buffer address; r8: save rsi =20 --=20 2.29.2.windows.2 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. 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