From 3c0a051fa2bc443cee65d25fda74771f47cbb8eb Mon Sep 17 00:00:00 2001
From: jljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>
Date: Fri, 2 Nov 2012 18:27:55 +0000
Subject: OvmfPkg: Add LoadLinuxLib library implementation

This code is based on efilinux's bzimage support.
git://git.kernel.org/pub/scm/boot/efilinux/efilinux.git

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Matt Fleming <matt.fleming@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13922 6f19259b-4bc3-4df7-8a09-765794883524
---
 OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.S   | 30 ++++++++++++++++++++
 OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.asm | 34 +++++++++++++++++++++++
 2 files changed, 64 insertions(+)
 create mode 100644 OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.S
 create mode 100644 OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.asm

(limited to 'OvmfPkg/Library/LoadLinuxLib/X64')

diff --git a/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.S b/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.S
new file mode 100644
index 0000000000..9ae755b067
--- /dev/null
+++ b/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.S
@@ -0,0 +1,30 @@
+#------------------------------------------------------------------------------
+#
+# Copyright (c) 2006 - 2011, 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.
+#
+#------------------------------------------------------------------------------
+
+ASM_GLOBAL ASM_PFX(JumpToKernel)
+
+#------------------------------------------------------------------------------
+# VOID
+# EFIAPI
+# JumpToKernel (
+#   VOID *KernelStart,         // %rcx
+#   VOID *KernelBootParams     // %rdx
+#   );
+#------------------------------------------------------------------------------
+ASM_PFX(JumpToKernel):
+    movq    %rdx, %rsi
+    addq    $0x200, %rcx
+    callq   %rcx
+    ret
+
diff --git a/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.asm b/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.asm
new file mode 100644
index 0000000000..ed53321c23
--- /dev/null
+++ b/OvmfPkg/Library/LoadLinuxLib/X64/JumpToKernel.asm
@@ -0,0 +1,34 @@
+;------------------------------------------------------------------------------
+;
+; 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
+; JumpToKernel (
+;   VOID *KernelStart,         // rcx
+;   VOID *KernelBootParams     // rdx
+;   );
+;------------------------------------------------------------------------------
+JumpToKernel PROC
+
+    mov     rsi, rdx
+    add     rcx, 200h
+    call    rcx
+    ret
+
+JumpToKernel ENDP
+
+END
-- 
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