summaryrefslogtreecommitdiff
path: root/OvmfPkg/Csm/LegacyBiosDxe/X64
diff options
context:
space:
mode:
authorHao A Wu <hao.a.wu@intel.com>2019-05-15 11:22:29 +0800
committerHao A Wu <hao.a.wu@intel.com>2019-06-14 13:05:33 +0800
commitb522c77bdb4538710715dd13502840a2ca8072f6 (patch)
treebddb2f23f144c6d444340916f3e934cd35ab1c6b /OvmfPkg/Csm/LegacyBiosDxe/X64
parentbb4485d388392c9b99aac2435ab08e3d54836f26 (diff)
downloadedk2-b522c77bdb4538710715dd13502840a2ca8072f6.zip
edk2-b522c77bdb4538710715dd13502840a2ca8072f6.tar.gz
edk2-b522c77bdb4538710715dd13502840a2ca8072f6.tar.bz2
OvmfPkg: Copy the required CSM components from framework packages
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1811 This commit copies the exact: Drivers: * VideoDxe * LegacyBiosDxe Libraries: * LegacyBootMaintUiLib * LegacyBootManagerLib Guid header files: * Legacy Bios Guid * LegacyDevOrder Guid Protocol header files: * Firmware Volume Protocol * ISA ACPI Protocol * ISA I/O Protocol * Legacy BIOS Protocol * Legacy BIOS Platform Protocol * Legacy Interrupt Protocol * VGA Mini Port Protocol Framework header files (within IntelFrameworkPkg): * FrameworkDxe.h * Framework/BootScript.h * Framework/DxeCis.h * Framework/FirmwareVolumeHeader.h * Framework/FirmwareVolumeImageFormat.h * Framework/FrameworkInternalFormRepresentation.h * Framework/Hob.h * Framework/StatusCode.h from IntelFramework[Module]Pkg to OvmfPkg/Csm/ folder. Cc: Ray Ni <ray.ni@intel.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Hao A Wu <hao.a.wu@intel.com> Reviewed-by: David Woodhouse <dwmw2@infradead.org> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'OvmfPkg/Csm/LegacyBiosDxe/X64')
-rw-r--r--OvmfPkg/Csm/LegacyBiosDxe/X64/InterruptTable.nasm64
1 files changed, 64 insertions, 0 deletions
diff --git a/OvmfPkg/Csm/LegacyBiosDxe/X64/InterruptTable.nasm b/OvmfPkg/Csm/LegacyBiosDxe/X64/InterruptTable.nasm
new file mode 100644
index 0000000..afc2f0e
--- /dev/null
+++ b/OvmfPkg/Csm/LegacyBiosDxe/X64/InterruptTable.nasm
@@ -0,0 +1,64 @@
+;; @file
+; Interrupt Redirection Template
+;
+; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
+;
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+;;
+
+ DEFAULT REL
+ SECTION .text
+
+;----------------------------------------------------------------------------
+; Procedure: InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F
+;
+; Input: None
+;
+; Output: None
+;
+; Prototype: VOID
+; InterruptRedirectionTemplate (
+; VOID
+; );
+;
+; Saves: None
+;
+; Modified: None
+;
+; Description: Contains the code that is copied into low memory (below 640K).
+; This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f.
+; This template must be copied into low memory, and the IDT entries
+; 0x68-0x6F must be point to the low memory copy of this code. Each
+; entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily
+; computed.
+;
+;----------------------------------------------------------------------------
+
+global ASM_PFX(InterruptRedirectionTemplate)
+ASM_PFX(InterruptRedirectionTemplate):
+ int 0x8
+ DB 0xcf ; IRET
+ nop
+ int 0x9
+ DB 0xcf ; IRET
+ nop
+ int 0xa
+ DB 0xcf ; IRET
+ nop
+ int 0xb
+ DB 0xcf ; IRET
+ nop
+ int 0xc
+ DB 0xcf ; IRET
+ nop
+ int 0xd
+ DB 0xcf ; IRET
+ nop
+ int 0xe
+ DB 0xcf ; IRET
+ nop
+ int 0xf
+ DB 0xcf ; IRET
+ nop
+