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| author | Min Xu <min.m.xu@intel.com> | 2021-10-22 14:01:36 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2022-04-02 08:15:12 +0000 |
| commit | d74e93268185273b2a91ff8577659bafeac4341c (patch) | |
| tree | a71f49e5ff8d07117d6c69f1e1d2fa09748042a5 /MdePkg | |
| parent | b6b2de8848648bbba1ab74b0752d6650bc03018a (diff) | |
| download | edk2-d74e93268185273b2a91ff8577659bafeac4341c.tar.gz edk2-d74e93268185273b2a91ff8577659bafeac4341c.tar.bz2 edk2-d74e93268185273b2a91ff8577659bafeac4341c.zip | |
MdePkg: Support IoFifo for Tdx guest in BaseIoLibIntrinsic
RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429
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 <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
Diffstat (limited to 'MdePkg')
| -rw-r--r-- | MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicSev.inf | 2 | ||||
| -rw-r--r-- | MdePkg/Library/BaseIoLibIntrinsic/IoLibFifo.c | 217 | ||||
| -rw-r--r-- | MdePkg/Library/BaseIoLibIntrinsic/IoLibSev.h | 166 | ||||
| -rw-r--r-- | MdePkg/Library/BaseIoLibIntrinsic/X64/IoFifoSev.nasm | 34 |
4 files changed, 402 insertions, 17 deletions
diff --git a/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicSev.inf b/MdePkg/Library/BaseIoLibIntrinsic/BaseIoLibIntrinsicSev.inf index a74e54bee8..7fe1c60f04 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
[Sources.IA32]
IoLibGcc.c | GCC
@@ -44,6 +45,7 @@ IoLibMsc.c | MSFT
IoLib.c
IoLibInternalTdx.c
+ IoLibFifo.c
X64/IoFifoSev.nasm
[Packages]
diff --git a/MdePkg/Library/BaseIoLibIntrinsic/IoLibFifo.c b/MdePkg/Library/BaseIoLibIntrinsic/IoLibFifo.c new file mode 100644 index 0000000000..9a94bc6a05 --- /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.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "BaseIoLibIntrinsicInternal.h"
+#include "IoLibSev.h"
+#include "IoLibTdx.h"
+#include <Uefi/UefiBaseType.h>
+#include <Library/TdxLib.h>
+
+/**
+ 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 0000000000..6d7cafcff2 --- /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.<BR>
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#ifndef IOLIB_SEV_H_
+#define IOLIB_SEV_H_
+
+#include <Base.h>
+
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+
+/**
+ 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 106f8881c5..d02286b4d5 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
@@ -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
@@ -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
@@ -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
@@ -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
@@ -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
|