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pci: Don't allow mapping to isa ports

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Fabian 2022-07-21 22:05:22 +09:00
parent 923d4148d0
commit 81f8976500
1 changed files with 10 additions and 2 deletions
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12
src/pci.js
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@ -547,7 +547,11 @@ PCI.prototype.set_io_bars = function(bar, from, to)
for(var i = 0; i < count; i++)
{
var old_entry = ports[from + i];
ports[from + i] = this.io.create_empty_entry();
if(from + i >= 0x1000)
{
ports[from + i] = this.io.create_empty_entry();
}
if(old_entry.read8 === this.io.empty_port_read8 &&
old_entry.read16 === this.io.empty_port_read16 &&
@ -556,6 +560,7 @@ PCI.prototype.set_io_bars = function(bar, from, to)
old_entry.write16 === this.io.empty_port_write &&
old_entry.write32 === this.io.empty_port_write)
{
// happens when a device doesn't register its full range (currently ne2k and virtio)
dbg_log("Warning: Bad IO bar: Source not mapped, port=" + h(from + i, 4), LOG_PCI);
}
@ -563,7 +568,10 @@ PCI.prototype.set_io_bars = function(bar, from, to)
var empty_entry = ports[to + i];
dbg_assert(entry && empty_entry);
ports[to + i] = entry;
if(to + i >= 0x1000)
{
ports[to + i] = entry;
}
if(empty_entry.read8 === this.io.empty_port_read8 ||
empty_entry.read16 === this.io.empty_port_read16 ||