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|
; $Id: bootsector2-cpu-hidden-regs-1-template.mac $
;; @file
; bootsector2 hidden CPU registers - multi mode template.
;
;
; Copyright (C) 2007-2023 Oracle and/or its affiliates.
;
; This file is part of VirtualBox base platform packages, as
; available from https://www.virtualbox.org.
;
; This program is free software; you can redistribute it and/or
; modify it under the terms of the GNU General Public License
; as published by the Free Software Foundation, in version 3 of the
; License.
;
; This program is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
; General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, see <https://www.gnu.org/licenses>.
;
; The contents of this file may alternatively be used under the terms
; of the Common Development and Distribution License Version 1.0
; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
; in the VirtualBox distribution, in which case the provisions of the
; CDDL are applicable instead of those of the GPL.
;
; You may elect to license modified versions of this file under the
; terms and conditions of either the GPL or the CDDL or both.
;
; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
;
%include "bootsector2-template-header.mac"
;;
; Helper for reporting several register values at in a sequence.
;
BEGINPROC TMPL_NM(TestValueRegSZZ)
push sAX
push sBX
mov xBX, xAX
.next:
mov xAX, xBX
call TMPL_NM_CMN(TestValueReg)
.inner_next:
inc xBX
cmp byte [xBX], 0
jne .inner_next
inc xBX
cmp byte [xBX], 0
je .done
jmp .next
.done
pop sBX
pop sAX
ret
ENDPROC TMPL_NM(TestValueRegSZZ)
;;
; Tests various LDTR values
;
BEGINPROC TMPL_NM(doLdtrTests)
push sAX
; The inital LDT.
mov sAX, .szLdtrInitial
call TMPL_NM(TestValueRegSZZ)
; Load our LDT
mov eax, BS2_SEL_LDT
lldt ax
mov sAX, .szLdtrValid
call TMPL_NM(TestValueRegSZZ)
; NULL LDTR.
xor eax, eax
lldt ax
mov sAX, .szLdtr0
call TMPL_NM(TestValueRegSZZ)
; NULL(1) LDTR.
mov eax, 1
lldt ax
mov sAX, .szLdtr1
call TMPL_NM(TestValueRegSZZ)
; NULL(2) LDTR.
mov eax, 2
lldt ax
mov sAX, .szLdtr2
call TMPL_NM(TestValueRegSZZ)
; NULL(3) LDTR.
mov eax, 3
lldt ax
mov sAX, .szLdtr3
call TMPL_NM(TestValueRegSZZ)
.done
pop sAX
ret
.szLdtrInitial:
db 'LDTR(Initial) sel:ldtr', 0
db 'LDTR(Initial) base:ldtr_base', 0
db 'LDTR(Initial) limit:ldtr_lim', 0
db 'LDTR(Initial) attr:ldtr_attr', 0
db 0
.szLdtrValid:
db 'LDTR(Valid) sel:ldtr', 0
db 'LDTR(Valid) base:ldtr_base', 0
db 'LDTR(Valid) limit:ldtr_lim', 0
db 'LDTR(Valid) attr:ldtr_attr', 0
db 0
.szLdtr0:
db 'LDTR(0) sel:ldtr', 0
db 'LDTR(0) base:ldtr_base', 0
db 'LDTR(0) limit:ldtr_lim', 0
db 'LDTR(0) attr:ldtr_attr', 0
db 0
.szLdtr1:
db 'LDTR(1) sel:ldtr', 0
db 'LDTR(1) base:ldtr_base', 0
db 'LDTR(1) limit:ldtr_lim', 0
db 'LDTR(1) attr:ldtr_attr', 0
db 0
.szLdtr2:
db 'LDTR(2) sel:ldtr', 0
db 'LDTR(2) base:ldtr_base', 0
db 'LDTR(2) limit:ldtr_lim', 0
db 'LDTR(2) attr:ldtr_attr', 0
db 0
.szLdtr3:
db 'LDTR(3) sel:ldtr', 0
db 'LDTR(3) base:ldtr_base', 0
db 'LDTR(3) limit:ldtr_lim', 0
db 'LDTR(3) attr:ldtr_attr', 0
db 0
ENDPROC TMPL_NM(doLdtrTests)
;;
; Tests various LDTR values
;
BEGINPROC TMPL_NM(doTrTests)
push sAX
; Initial TR values.
mov sAX, .szTrInitial
call TMPL_NM(TestValueRegSZZ)
jmp .next1
.szTrInitial:
db 'TR(Initial) sel:tr', 0
db 'TR(Initial) base:tr_base', 0
db 'TR(Initial) limit:tr_lim', 0
db 'TR(Initial) attr:tr_attr', 0
db 0
.next1:
; Our TR.
%ifdef TMPL_CMN_LM
mov ax, BS2_SEL_TSS64
ltr ax
mov sAX, .szTrTss64
call TMPL_NM(TestValueRegSZZ)
jmp .next2
.szTrTss64:
db 'TR(64) sel:tr', 0
db 'TR(64) base:tr_base', 0
db 'TR(64) limit:tr_lim', 0
db 'TR(64) attr:tr_attr', 0
db 0
%elifdef TMPL_PP32
mov ax, BS2_SEL_TSS32
ltr ax
mov sAX, .szTrTss32
call TMPL_NM(TestValueRegSZZ)
jmp .next2
.szTrTss32:
db 'TR(32) sel:tr', 0
db 'TR(32) base:tr_base', 0
db 'TR(32) limit:tr_lim', 0
db 'TR(32) attr:tr_attr', 0
db 0
;%elifdef TMPL_PP16
; mov ax, BS2_SEL_TSS16
; mov sAX, .szTrTss16
; call TMPL_NM(TestValueRegSZZ)
%endif
.next2:
; Note! Loading 0 into TR is not possible, unlike with LDTR.
.done
pop sAX
ret
ENDPROC TMPL_NM(doTrTests)
;;
; Test loading of NULL selectors.
;
BEGINPROC TMPL_NM(doNullSelTests)
push sAX
push xBX
push gs
mov ax, ss
mov gs, ax
mov sAX, .szGsSs
call TMPL_NM(TestValueRegSZZ)
xor eax, eax
mov gs, ax
mov sAX, .szGs0
call TMPL_NM(TestValueRegSZZ)
mov ax, 3
mov gs, ax
mov sAX, .szGs3
call TMPL_NM(TestValueRegSZZ)
%ifdef TMPL_64BIT
pushf
cli
mov bx, ss
mov ax, 0
mov ss, ax
mov sAX, .szSs0
call TMPL_NM(TestValueRegSZZ)
mov ss, bx
popf
call TMPL_NM_CMN(Bs2ToRing2)
mov bx, ss
mov ax, 2
mov ss, ax
mov sAX, .szSs1Ring2
call TMPL_NM(TestValueRegSZZ)
mov ss, bx
test byte [g_fCpuAmd], 1
jz .not_amd
mov ax, 3
mov ss, ax
mov sAX, .szSs3Ring2
call TMPL_NM(TestValueRegSZZ)
.not_amd:
call TMPL_NM_CMN(Bs2ToRing0)
%endif
pop gs
pop xBX
pop sAX
ret
.szGsSs:
db 'GS(ss) sel:gs', 0
db 'GS(ss) base:gs_base', 0
db 'GS(ss) limit:gs_lim', 0
db 'GS(ss) attr:gs_attr', 0
db 0
.szGs0:
db 'GS(0) sel:gs', 0
db 'GS(0) base:gs_base', 0
db 'GS(0) limit:gs_lim', 0
db 'GS(0) attr:gs_attr', 0
db 0
.szGs3:
db 'GS(3) sel:gs', 0
db 'GS(3) base:gs_base', 0
db 'GS(3) limit:gs_lim', 0
db 'GS(3) attr:gs_attr', 0
db 0
%ifdef TMPL_64BIT
.szSs0:
db 'SS(0) sel:ss', 0
db 'SS(0) base:ss_base', 0
db 'SS(0) limit:ss_lim', 0
db 'SS(0) attr:ss_attr', 0
db 0
.szSs1Ring2
db 'ring-2 SS(2) sel:ss', 0
db 'ring-2 SS(2) base:ss_base', 0
db 'ring-2 SS(2) limit:ss_lim', 0
db 'ring-2 SS(2) attr:ss_attr', 0
db 0
.szSs3Ring2
db 'ring-2 SS(3) sel:ss', 0
db 'ring-2 SS(3) base:ss_base', 0
db 'ring-2 SS(3) limit:ss_lim', 0
db 'ring-2 SS(3) attr:ss_attr', 0
db 0
%endif
ENDPROC TMPL_NM(doNullSelTests)
BEGINPROC TMPL_NM(doTestsWorker)
push sAX
mov xAX, .s_szSubTest
call TMPL_NM_CMN(TestSub)
call TMPL_NM(doLdtrTests)
call TMPL_NM(doTrTests)
call TMPL_NM(doNullSelTests)
.done
pop sAX
ret
.s_szSubTest:
db TMPL_MODE_STR, 0
ENDPROC TMPL_NM(doTestsWorker)
;;
; Do the tests for this mode.
;
; @uses nothing
;
BEGINCODELOW
BITS 16
BEGINPROC TMPL_NM(doTests_rm)
call TMPL_NM(Bs2IsModeSupported_rm)
jz .done
call TMPL_NM(Bs2EnterMode_rm)
BITS TMPL_BITS
call TMPL_NM(doTestsWorker)
call TMPL_NM(Bs2ExitMode)
BITS 16
.done:
ret
ENDPROC TMPL_NM(doTests_rm)
TMPL_BEGINCODE
BITS TMPL_BITS
%include "bootsector2-template-footer.mac"
|
