This makes it simpler to keep the SSDT byte-for-byte identical for a given machine type, which is a goal we want to have for 2.2 and newer types. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
177 lines
7.2 KiB
Plaintext
177 lines
7.2 KiB
Plaintext
/*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
External(MEMORY_SLOT_NOTIFY_METHOD, MethodObj)
|
|
|
|
Scope(\_SB.PCI0) {
|
|
Device(MEMORY_HOTPLUG_DEVICE) {
|
|
Name(_HID, "PNP0A06")
|
|
Name(_UID, "Memory hotplug resources")
|
|
External(MEMORY_SLOTS_NUMBER, IntObj)
|
|
|
|
/* Memory hotplug IO registers */
|
|
OperationRegion(MEMORY_HOTPLUG_IO_REGION, SystemIO,
|
|
ACPI_MEMORY_HOTPLUG_BASE,
|
|
ACPI_MEMORY_HOTPLUG_IO_LEN)
|
|
|
|
Name(_CRS, ResourceTemplate() {
|
|
IO(Decode16, ACPI_MEMORY_HOTPLUG_BASE, ACPI_MEMORY_HOTPLUG_BASE,
|
|
0, ACPI_MEMORY_HOTPLUG_IO_LEN, IO)
|
|
})
|
|
|
|
Method(_STA, 0) {
|
|
If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
|
|
Return(0x0)
|
|
}
|
|
/* present, functioning, decoding, not shown in UI */
|
|
Return(0xB)
|
|
}
|
|
|
|
Field(MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) {
|
|
MEMORY_SLOT_ADDR_LOW, 32, // read only
|
|
MEMORY_SLOT_ADDR_HIGH, 32, // read only
|
|
MEMORY_SLOT_SIZE_LOW, 32, // read only
|
|
MEMORY_SLOT_SIZE_HIGH, 32, // read only
|
|
MEMORY_SLOT_PROXIMITY, 32, // read only
|
|
}
|
|
Field(MEMORY_HOTPLUG_IO_REGION, ByteAcc, NoLock, Preserve) {
|
|
Offset(20),
|
|
MEMORY_SLOT_ENABLED, 1, // 1 if enabled, read only
|
|
MEMORY_SLOT_INSERT_EVENT, 1, // (read) 1 if has a insert event. (write) 1 to clear event
|
|
}
|
|
|
|
Mutex (MEMORY_SLOT_LOCK, 0)
|
|
Field (MEMORY_HOTPLUG_IO_REGION, DWordAcc, NoLock, Preserve) {
|
|
MEMORY_SLOT_SLECTOR, 32, // DIMM selector, write only
|
|
MEMORY_SLOT_OST_EVENT, 32, // _OST event code, write only
|
|
MEMORY_SLOT_OST_STATUS, 32, // _OST status code, write only
|
|
}
|
|
|
|
Method(MEMORY_SLOT_SCAN_METHOD, 0) {
|
|
If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
|
|
Return(Zero)
|
|
}
|
|
|
|
Store(Zero, Local0) // Mem devs iterrator
|
|
Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
|
|
while (LLess(Local0, MEMORY_SLOTS_NUMBER)) {
|
|
Store(Local0, MEMORY_SLOT_SLECTOR) // select Local0 DIMM
|
|
If (LEqual(MEMORY_SLOT_INSERT_EVENT, One)) { // Memory device needs check
|
|
MEMORY_SLOT_NOTIFY_METHOD(Local0, 1)
|
|
Store(1, MEMORY_SLOT_INSERT_EVENT)
|
|
}
|
|
// TODO: handle memory eject request
|
|
Add(Local0, One, Local0) // goto next DIMM
|
|
}
|
|
Release(MEMORY_SLOT_LOCK)
|
|
Return(One)
|
|
}
|
|
|
|
Method(MEMORY_SLOT_STATUS_METHOD, 1) {
|
|
Store(Zero, Local0)
|
|
|
|
Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
|
|
Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
|
|
|
|
If (LEqual(MEMORY_SLOT_ENABLED, One)) {
|
|
Store(0xF, Local0)
|
|
}
|
|
|
|
Release(MEMORY_SLOT_LOCK)
|
|
Return(Local0)
|
|
}
|
|
|
|
Method(MEMORY_SLOT_CRS_METHOD, 1, Serialized) {
|
|
Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
|
|
Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
|
|
|
|
Name(MR64, ResourceTemplate() {
|
|
QWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed,
|
|
Cacheable, ReadWrite,
|
|
0x0000000000000000, // Address Space Granularity
|
|
0x0000000000000000, // Address Range Minimum
|
|
0xFFFFFFFFFFFFFFFE, // Address Range Maximum
|
|
0x0000000000000000, // Address Translation Offset
|
|
0xFFFFFFFFFFFFFFFF, // Address Length
|
|
,, MW64, AddressRangeMemory, TypeStatic)
|
|
})
|
|
|
|
CreateDWordField(MR64, 14, MINL)
|
|
CreateDWordField(MR64, 18, MINH)
|
|
CreateDWordField(MR64, 38, LENL)
|
|
CreateDWordField(MR64, 42, LENH)
|
|
CreateDWordField(MR64, 22, MAXL)
|
|
CreateDWordField(MR64, 26, MAXH)
|
|
|
|
Store(MEMORY_SLOT_ADDR_HIGH, MINH)
|
|
Store(MEMORY_SLOT_ADDR_LOW, MINL)
|
|
Store(MEMORY_SLOT_SIZE_HIGH, LENH)
|
|
Store(MEMORY_SLOT_SIZE_LOW, LENL)
|
|
|
|
// 64-bit math: MAX = MIN + LEN - 1
|
|
Add(MINL, LENL, MAXL)
|
|
Add(MINH, LENH, MAXH)
|
|
If (LLess(MAXL, MINL)) {
|
|
Add(MAXH, One, MAXH)
|
|
}
|
|
If (LLess(MAXL, One)) {
|
|
Subtract(MAXH, One, MAXH)
|
|
}
|
|
Subtract(MAXL, One, MAXL)
|
|
|
|
If (LEqual(MAXH, Zero)){
|
|
Name(MR32, ResourceTemplate() {
|
|
DWordMemory(ResourceProducer, PosDecode, MinFixed, MaxFixed,
|
|
Cacheable, ReadWrite,
|
|
0x00000000, // Address Space Granularity
|
|
0x00000000, // Address Range Minimum
|
|
0xFFFFFFFE, // Address Range Maximum
|
|
0x00000000, // Address Translation Offset
|
|
0xFFFFFFFF, // Address Length
|
|
,, MW32, AddressRangeMemory, TypeStatic)
|
|
})
|
|
CreateDWordField(MR32, MW32._MIN, MIN)
|
|
CreateDWordField(MR32, MW32._MAX, MAX)
|
|
CreateDWordField(MR32, MW32._LEN, LEN)
|
|
Store(MINL, MIN)
|
|
Store(MAXL, MAX)
|
|
Store(LENL, LEN)
|
|
|
|
Release(MEMORY_SLOT_LOCK)
|
|
Return(MR32)
|
|
}
|
|
|
|
Release(MEMORY_SLOT_LOCK)
|
|
Return(MR64)
|
|
}
|
|
|
|
Method(MEMORY_SLOT_PROXIMITY_METHOD, 1) {
|
|
Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
|
|
Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
|
|
Store(MEMORY_SLOT_PROXIMITY, Local0)
|
|
Release(MEMORY_SLOT_LOCK)
|
|
Return(Local0)
|
|
}
|
|
|
|
Method(MEMORY_SLOT_OST_METHOD, 4) {
|
|
Acquire(MEMORY_SLOT_LOCK, 0xFFFF)
|
|
Store(ToInteger(Arg0), MEMORY_SLOT_SLECTOR) // select DIMM
|
|
Store(Arg1, MEMORY_SLOT_OST_EVENT)
|
|
Store(Arg2, MEMORY_SLOT_OST_STATUS)
|
|
Release(MEMORY_SLOT_LOCK)
|
|
}
|
|
} // Device()
|
|
} // Scope()
|