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authorjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2012-05-30 23:14:38 +0000
committerjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2012-05-30 23:14:38 +0000
commitf1ec65ba24e1c7ca07c971dd737932c756f5780d (patch)
treede5d65052aa6e16439d9bbe67170c10a3b61754e /OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S
parentd90e7d81c0e76c3169b1452904c722258555c852 (diff)
downloadedk2-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/Ia32/IoLibExAsm.S')
-rw-r--r--OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S32
1 files changed, 32 insertions, 0 deletions
diff --git a/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S b/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S
new file mode 100644
index 0000000000..a32b2c60c4
--- /dev/null
+++ b/OvmfPkg/Library/QemuFwCfgLib/Ia32/IoLibExAsm.S
@@ -0,0 +1,32 @@
+#------------------------------------------------------------------------------
+#
+# 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,
+# IN UINTN Size,
+# IN VOID *Buffer
+# );
+#------------------------------------------------------------------------------
+ASM_GLOBAL ASM_PFX(IoReadFifo8)
+ASM_PFX(IoReadFifo8):
+ movw 4(%esp), %dx
+ movl 8(%esp), %ecx
+ pushl %edi
+ movl 16(%esp), %edi
+rep insb
+ popl %edi
+ ret
+