mirrors/Bochs
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed io permissions bitmap exception

Browse Source
This commit is contained in:
Stanislav Shwartsman 2008-05-19 20:01:23 +00:00
parent f331919d63
commit 3b39c011a6
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
bochs/cpu/io_pro.cc
View File

@ -1,5 +1,5 @@
///////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////
// $Id: io_pro.cc,v 1.31 2008-04-17 14:22:23 sshwarts Exp $ // $Id: io_pro.cc,v 1.32 2008-05-19 20:01:23 sshwarts Exp $
///////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////
// //
// Copyright (C) 2001 MandrakeSoft S.A. // Copyright (C) 2001 MandrakeSoft S.A.
@ -127,12 +127,12 @@ bx_bool BX_CPU_C::allow_io(Bit16u addr, unsigned len)
access_read_linear(BX_CPU_THIS_PTR tr.cache.u.system.base + 102, access_read_linear(BX_CPU_THIS_PTR tr.cache.u.system.base + 102,
2, 0, BX_READ, &io_base); 2, 0, BX_READ, &io_base);
/*
if (io_base <= 103) { if (io_base <= 103) {
BX_ERROR(("allow_io(): TR:io_base (%u) <= 103", io_base)); BX_ERROR(("allow_io(): TR:io_base (%u) <= 103", io_base));
return(0); return(0);
} }
*/
if ((Bit32s) (addr/8) >= (Bit32s) (BX_CPU_THIS_PTR tr.cache.u.system.limit_scaled - io_base)) { if ((Bit32s) (addr/8) >= (Bit32s) (BX_CPU_THIS_PTR tr.cache.u.system.limit_scaled - io_base)) {
BX_ERROR(("allow_io(): IO addr %x (len %d) outside TSS IO permission map (base=%x, limit=%x) #GP(0)", BX_ERROR(("allow_io(): IO addr %x (len %d) outside TSS IO permission map (base=%x, limit=%x) #GP(0)",
addr, len, io_base, BX_CPU_THIS_PTR tr.cache.u.system.limit_scaled)); addr, len, io_base, BX_CPU_THIS_PTR tr.cache.u.system.limit_scaled));