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faster i/o apic write access

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This commit is contained in:
Stanislav Shwartsman 2009-02-03 19:12:00 +00:00
parent 1a5e565c0b
commit 30fec77004
1 changed files with 9 additions and 2 deletions
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11
bochs/iodev/ioapic.cc
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@ -1,5 +1,5 @@
/////////////////////////////////////////////////////////////////////////
// $Id: ioapic.cc,v 1.41 2009-01-10 11:30:20 vruppert Exp $
// $Id: ioapic.cc,v 1.42 2009-02-03 19:12:00 sshwarts Exp $
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002 MandrakeSoft S.A.
@ -43,8 +43,15 @@ static bx_bool ioapic_write(bx_phy_address a20addr, unsigned len, void *data, vo
{
if (len != 4) {
BX_PANIC (("I/O apic write with len=%d (should be 4)", len));
return 1;
}
bx_ioapic.write(a20addr, (Bit32u*) data, len);
if(a20addr & 3) {
BX_PANIC(("I/O apic write at unaligned address 0x" FMT_PHY_ADDRX, a20addr));
return 1;
}
bx_ioapic.write_aligned(a20addr, (Bit32u*) data);
return 1;
}