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acpi: fix skipping over parameters of devices

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Fixes lookup of pci GSI IRQ re-routing tables seen on Ultrabook Fujitsu t904.

Fixes #1250
This commit is contained in:
Alexander Boettcher 2014-08-29 14:58:55 +02:00 committed by Norman Feske
parent cc2f173ca3
commit 1add912df2
1 changed files with 11 additions and 9 deletions
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20
repos/os/src/drivers/acpi/acpi.cc
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@ -801,12 +801,6 @@ class Element : public List<Element>::Element
_valid = true;
/* set absolute name of this element */
_set_name();
_type = data[0];
dump();
/* ACPI 19.2.3 DataRefObject */
switch (data[_name_len + 1]) {
case QWORD_PREFIX: _para_len += 4;
@ -816,6 +810,12 @@ class Element : public List<Element>::Element
default: _para_len += 1;
}
/* set absolute name of this element */
_set_name();
_type = data[0];
dump();
default:
return;
@ -836,6 +836,7 @@ class Element : public List<Element>::Element
_valid = other._valid;
_routed = other._routed;
_pci = other._pci;
_para_len = other._para_len;
if (other._name) {
_name = (char *)env()->heap()->alloc(other._name_len);
@ -926,11 +927,12 @@ class Element : public List<Element>::Element
/* skip header */
data += e.size_len();
/* skip name */
data += NAME_LEN;
/* skip rest of structure if known */
if (e.is_device_name()) {
data += e._name_len > NAME_LEN ? NAME_LEN : e._name_len;
if (e.is_device_name())
data += e._para_len;
}
}
parse_bdf();