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vbox: make I/O port access less noisy

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Instead of white-listing floppy controllers, certain SCSI controllers
as well as ISAPnP etc. pp. remove the diagnostics and print each access
if verbose is set.

Fixes #1726.
This commit is contained in:
Josef Söntgen 2015-09-07 16:38:50 +02:00 committed by Christian Helmuth
parent f9a64b663c
commit 2f8b3cfdaf
1 changed files with 9 additions and 29 deletions
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38
repos/ports/src/virtualbox/ioport.cc
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@ -129,10 +129,8 @@ class Guest_ioports
Range *_lookup(RTIOPORT PortStart, RTUINT cPorts)
{
for (Range *r = _ranges.first(); r; r = r->next())
if (r->contains(PortStart, cPorts)) {
// PINF("lookuped %lx %lx", r->_PortStart, r->_cPorts);
if (r->contains(PortStart, cPorts))
return r;
}
return 0;
}
@ -145,24 +143,6 @@ class Guest_ioports
r->_pDevIns && r->_pDevIns->pReg ? r->_pDevIns->pReg->szName : 0);
}
/*
* The whitelist is used to suppress log messages, which the VM tries
* to access I/O ports with no device model associated. TinyCore Linux
* seems to probe a lot of I/O ports, e.g. the LPT3 ports.
*/
bool _white_listed(RTIOPORT port)
{
/* LPT1 */ if (port >= 0x0378 && port <= 0x037f) return true;
/* LPT3 */ if (port >= 0x0278 && port <= 0x027f) return true;
/* ECP */ if (port >= 0x0778 && port <= 0x077a) return true;
/* IDE1 */ if (port >= 0x0170 && port <= 0x017f) return true;
/* COM1 */ if (port >= 0x03f8 && port <= 0x03ff) return true;
/* COM2 */ if (port >= 0x02f8 && port <= 0x02ff) return true;
/* COM3 */ if (port >= 0x03e8 && port <= 0x03ef) return true;
/* COM4 */ if (port >= 0x02e8 && port <= 0x02ef) return true;
return false;
}
public:
int add_range(PPDMDEVINS pDevIns,
@ -229,12 +209,12 @@ class Guest_ioports
if (r)
return r->write(port, u32Value, cbValue);
if (_white_listed(port))
return VINF_SUCCESS;
if (verbose) {
char c = u32Value & 0xff;
PWRN("attempted to write to non-existing port 0x%x+%zu %c (%02x)",
port, cbValue, c >= 32 && c <= 176 ? c : '.', c);
}
char c = u32Value & 0xff;
PWRN("attempted to write to non-existing port 0x%x+%zu %c (%02x)",
port, cbValue, c >= 32 && c <= 176 ? c : '.', c);
return VINF_SUCCESS;
}
@ -246,9 +226,9 @@ class Guest_ioports
if (err != VERR_IOM_IOPORT_UNUSED)
return err;
} else
if (!_white_listed(port))
PWRN("attempted to read from non-existing port 0x%x+%zu %p",
port, cbValue, r);
if (verbose)
PWRN("attempted to read from non-existing port 0x%x+%zu %p",
port, cbValue, r);
switch (cbValue)
{