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authorjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2013-01-16 06:50:08 +0000
committerjljusten <jljusten@6f19259b-4bc3-4df7-8a09-765794883524>2013-01-16 06:50:08 +0000
commita205121e3cafaa2ec78f5392097392cc4ed31db4 (patch)
tree7fd1c8c56957314292e2a90a6277f35b9838c4cd /OvmfPkg/Library/LoadLinuxLib/Ia32
parentc61a56f208a6b3ca49b7542a81e75c141a198d6f (diff)
downloadedk2-platforms-a205121e3cafaa2ec78f5392097392cc4ed31db4.tar.xz
OvmfPkg: LoadLinuxLib: Use kernel's EFI entry point where available
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14053 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'OvmfPkg/Library/LoadLinuxLib/Ia32')
-rw-r--r--OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.S19
-rw-r--r--OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.asm21
2 files changed, 38 insertions, 2 deletions
diff --git a/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.S b/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.S
index b8cd4ca515..f7440f74c4 100644
--- a/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.S
+++ b/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.S
@@ -1,6 +1,6 @@
#------------------------------------------------------------------------------
#
-# Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2006 - 2013, 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
@@ -13,6 +13,7 @@
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(JumpToKernel)
+ASM_GLOBAL ASM_PFX(JumpToUefiKernel)
#------------------------------------------------------------------------------
# VOID
@@ -27,3 +28,19 @@ ASM_PFX(JumpToKernel):
calll 0x4(%esp)
ret
+#------------------------------------------------------------------------------
+# VOID
+# EFIAPI
+# JumpToUefiKernel (
+# EFI_HANDLE ImageHandle,
+# EFI_SYSTEM_TABLE *SystemTable,
+# VOID *KernelBootParams,
+# VOID *KernelStart
+# );
+#------------------------------------------------------------------------------
+ASM_PFX(JumpToUefiKernel):
+ movl 0xc(%esp), %eax
+ movl 0x264(%eax), %eax
+ addl 0x10(%esp), %eax
+ jmp %eax
+
diff --git a/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.asm b/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.asm
index a8f3965f9a..21d0c4e724 100644
--- a/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.asm
+++ b/OvmfPkg/Library/LoadLinuxLib/Ia32/JumpToKernel.asm
@@ -1,6 +1,6 @@
;------------------------------------------------------------------------------
;
-; Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
+; Copyright (c) 2006 - 2013, 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
@@ -32,4 +32,23 @@ JumpToKernel PROC
JumpToKernel ENDP
+;------------------------------------------------------------------------------
+; VOID
+; EFIAPI
+; JumpToUefiKernel (
+; EFI_HANDLE ImageHandle,
+; EFI_SYSTEM_TABLE *SystemTable,
+; VOID *KernelBootParams,
+; VOID *KernelStart
+; );
+;------------------------------------------------------------------------------
+JumpToUefiKernel PROC
+
+ mov eax, [esp + 12]
+ mov eax, [eax + 264h]
+ add eax, [esp + 16]
+ jmp eax
+
+JumpToUefiKernel ENDP
+
END