diff options
| author | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-30 23:14:38 +0000 |
|---|---|---|
| committer | jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524> | 2012-05-30 23:14:38 +0000 |
| commit | f1ec65ba24e1c7ca07c971dd737932c756f5780d (patch) | |
| tree | de5d65052aa6e16439d9bbe67170c10a3b61754e /OvmfPkg/Library/QemuFwCfgLib/X64 | |
| parent | d90e7d81c0e76c3169b1452904c722258555c852 (diff) | |
| download | edk2-platforms-f1ec65ba24e1c7ca07c971dd737932c756f5780d.tar.xz | |
OvmfPkg: Add QemuFwCfgLib library class and implementation
QEMU's Firmware Configuration interface gives the firmware
access to various types of information.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13383 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/Library/QemuFwCfgLib/X64')
| -rw-r--r-- | OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.S | 30 | ||||
| -rw-r--r-- | OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.asm | 36 |
2 files changed, 66 insertions, 0 deletions
diff --git a/OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.S b/OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.S new file mode 100644 index 0000000000..b1125ed7da --- /dev/null +++ b/OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.S @@ -0,0 +1,30 @@ +#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2012, 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
+# http://opensource.org/licenses/bsd-license.php.
+#
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#------------------------------------------------------------------------------
+
+#------------------------------------------------------------------------------
+# VOID
+# EFIAPI
+# IoReadFifo8 (
+# IN UINTN Port, // rcx
+# IN UINTN Size, // rdx
+# IN VOID *Buffer // r8
+# );
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(IoReadFifo8)
+ASM_PFX(IoReadFifo8):
+ xchg %rcx, %rdx
+ xchg %r8, %rdi # rdi: buffer address; r8: save rdi
+rep insb
+ mov %r8, %rdi # restore rdi
+ ret
+
diff --git a/OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.asm b/OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.asm new file mode 100644 index 0000000000..c60ad2c5d4 --- /dev/null +++ b/OvmfPkg/Library/QemuFwCfgLib/X64/IoLibExAsm.asm @@ -0,0 +1,36 @@ +;------------------------------------------------------------------------------
+;
+; Copyright (c) 2006 - 2012, 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
+; http://opensource.org/licenses/bsd-license.php.
+;
+; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+;
+;------------------------------------------------------------------------------
+
+ .code
+
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; IoReadFifo8 (
+; IN UINTN Port, // rcx
+; IN UINTN Size, // rdx
+; IN VOID *Buffer // r8
+; );
+;------------------------------------------------------------------------------
+IoReadFifo8 PROC
+
+ xchg rcx, rdx
+ xchg rdi, r8 ; rdi: buffer address; r8: save rdi
+rep insb
+ mov rdi, r8 ; restore rdi
+ ret
+
+IoReadFifo8 ENDP
+
+ END
+
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