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pc: acpi: cpuhp: move PRSC() method into SSDT

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Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2015-12-28 18:02:26 +01:00 • committed by Michael S. Tsirkin
parent 40f981a02d
commit f294ecbc13
8 changed files with 71 additions and 42 deletions
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2
hw/i386/acpi-build.c
View file

@ -1340,7 +1340,7 @@ build_ssdt(GArray *table_data, GArray *linker,
* Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
*/
/* Arg0 = Processor ID = APIC ID */
method = aml_method("NTFY", 2, AML_NOTSERIALIZED);
method = aml_method(AML_NOTIFY_METHOD, 2, AML_NOTSERIALIZED);
for (i = 0; i < acpi_cpus; i++) {
ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i)));
aml_append(ifctx,

39
hw/i386/acpi-dsdt-cpu-hotplug.dsl
View file

@ -19,42 +19,5 @@
Scope(\_SB) {
/* Objects filled in by run-time generated SSDT */
External(NTFY, MethodObj)
External(CPON, PkgObj)
External(PRS, FieldUnitObj)
/* Methods called by run-time generated SSDT Processor objects */
Method(PRSC, 0) {
// Local5 = active cpu bitmap
Store(PRS, Local5)
// Local2 = last read byte from bitmap
Store(Zero, Local2)
// Local0 = Processor ID / APIC ID iterator
Store(Zero, Local0)
While (LLess(Local0, SizeOf(CPON))) {
// Local1 = CPON flag for this cpu
Store(DerefOf(Index(CPON, Local0)), Local1)
If (And(Local0, 0x07)) {
// Shift down previously read bitmap byte
ShiftRight(Local2, 1, Local2)
} Else {
// Read next byte from cpu bitmap
Store(DerefOf(Index(Local5, ShiftRight(Local0, 3))), Local2)
}
// Local3 = active state for this cpu
Store(And(Local2, 1), Local3)
If (LNotEqual(Local1, Local3)) {
// State change - update CPON with new state
Store(Local3, Index(CPON, Local0))
// Do CPU notify
If (LEqual(Local3, 1)) {
NTFY(Local0, 1)
} Else {
NTFY(Local0, 3)
}
}
Increment(Local0)
}
}
External(CPU_SCAN_METHOD, MethodObj)
}

2
hw/i386/acpi-dsdt.dsl
View file

@ -268,7 +268,7 @@ DefinitionBlock (
}
Method(_E02) {
// CPU hotplug event
\_SB.PRSC()
\_SB.CPU_SCAN_METHOD()
}
Method(_L04) {
}

2
hw/i386/q35-acpi-dsdt.dsl
View file

@ -401,7 +401,7 @@ DefinitionBlock (
}
Method(_E02) {
// CPU hotplug event
\_SB.PRSC()
\_SB.CPU_SCAN_METHOD()
}
Method(_L04) {
}