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correctly implement CLFLUSH protection/paging checks + add instrumentation callback

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Stanislav Shwartsman 2008-01-16 22:56:17 +00:00
parent 1ff667a2d1
commit e287dcd91a
1 changed files with 22 additions and 4 deletions
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26
bochs/cpu/proc_ctrl.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: proc_ctrl.cc,v 1.194 2008-01-10 19:37:55 sshwarts Exp $
// $Id: proc_ctrl.cc,v 1.195 2008-01-16 22:56:17 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001 MandrakeSoft S.A.
@ -189,11 +189,29 @@ void BX_CPU_C::CLFLUSH(bxInstruction_c *i)
{
#if BX_SUPPORT_CLFLUSH
bx_segment_reg_t *seg = &BX_CPU_THIS_PTR sregs[i->seg()];
// check if we could access the memory
if ((seg->cache.valid & SegAccessROK4G) != SegAccessROK4G) {
BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
BX_CPU_CALL_METHODR(i->ResolveModrm, (i));
// check if we could access the memory segment
if ((seg->cache.valid & SegAccessROK4G) != SegAccessROK4G)
{
execute_virtual_checks(seg, RMAddr(i), 1);
}
bx_address laddr = BX_CPU_THIS_PTR get_segment_base(i->seg()) + RMAddr(i);
bx_phy_address paddr;
if (BX_CPU_THIS_PTR cr0.get_PG()) {
paddr = dtranslate_linear(laddr, CPL, BX_READ);
paddr = A20ADDR(paddr);
}
else
{
paddr = A20ADDR(laddr);
}
BX_INSTR_CLFLUSH(BX_CPU_ID, laddr, paddr);
#else
BX_INFO(("CLFLUSH: not supported, enable with SSE2"));
UndefinedOpcode(i);