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[Qemu-devel] [PATCH v2 37/47] pc: acpi-build: create memory hotplug IO r
From: |
Igor Mammedov |
Subject: |
[Qemu-devel] [PATCH v2 37/47] pc: acpi-build: create memory hotplug IO region dynamically |
Date: |
Thu, 22 Jan 2015 14:50:21 +0000 |
it replaces a static complied in DSDT MMIO region
for memory hotplug with one created at runtime
leaving only truly static memory hotplug related
ASL bits in DSDT. And replaces template patching
of MEMORY_SLOTS_NUMBER value with ASL API created
named value.
Later it also would make easier to reuse current
ACPI memory hotplug on other targets.
Also later it would be possible to move remaining
memory hotplug ASL methods into build_ssdt() and
add all memory hotplug related AML into SSDT only
when memory hotplug is enabled, further reducing
ACPI tables blob if memory hotplug isn't used.
Signed-off-by: Igor Mammedov <address@hidden>
---
hw/i386/acpi-build.c | 57 ++++++++++++++++++++++++++++++++++++---
hw/i386/acpi-dsdt-mem-hotplug.dsl | 36 +++++++------------------
hw/i386/ssdt-misc.dsl | 2 --
3 files changed, 64 insertions(+), 31 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 5e20193..b26bc6d 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -103,6 +103,8 @@ typedef struct AcpiPmInfo {
uint32_t io_base;
uint16_t cpu_hp_io_base;
uint16_t cpu_hp_io_len;
+ uint16_t mem_hp_io_base;
+ uint16_t mem_hp_io_len;
} AcpiPmInfo;
typedef struct AcpiMiscInfo {
@@ -188,6 +190,9 @@ static void acpi_get_pm_info(AcpiPmInfo *pm)
assert(obj);
pm->cpu_hp_io_len = ACPI_GPE_PROC_LEN;
+ pm->mem_hp_io_base = ACPI_MEMORY_HOTPLUG_BASE;
+ pm->mem_hp_io_len = ACPI_MEMORY_HOTPLUG_IO_LEN;
+
/* Fill in optional s3/s4 related properties */
o = object_property_get_qobject(obj, ACPI_PM_PROP_S3_DISABLED, NULL);
if (o) {
@@ -695,9 +700,6 @@ build_ssdt(GArray *table_data, GArray *linker,
patch_pci_windows(pci, ssdt_ptr, sizeof(ssdp_misc_aml));
- ACPI_BUILD_SET_LE(ssdt_ptr, sizeof(ssdp_misc_aml),
- ssdt_mctrl_nr_slots[0], 32, nr_mem);
-
/* create S3_ / S4_ / S5_ packages if necessary */
scope = acpi_scope("\\");
if (!pm->s3_disabled) {
@@ -835,6 +837,55 @@ build_ssdt(GArray *table_data, GArray *linker,
/* build memory devices */
assert(nr_mem <= ACPI_MAX_RAM_SLOTS);
+ scope = acpi_scope("\\_SB.PCI0." stringify(MEMORY_HOTPLUG_DEVICE));
+ aml_append(&scope,
+ acpi_name_decl(stringify(MEMORY_SLOTS_NUMBER), acpi_int(nr_mem))
+ );
+
+ crs = acpi_resource_template();
+ aml_append(&crs,
+ acpi_io(acpi_decode16, pm->mem_hp_io_base, pm->mem_hp_io_base,
+ 0, pm->mem_hp_io_len)
+ );
+ aml_append(&scope, acpi_name_decl("_CRS", crs));
+
+ aml_append(&scope, acpi_operation_region(
+ stringify(MEMORY_HOTPLUG_IO_REGION), acpi_system_io,
+ pm->mem_hp_io_base, pm->mem_hp_io_len)
+ );
+
+ field = acpi_field(stringify(MEMORY_HOTPLUG_IO_REGION),
acpi_dword_acc);
+ aml_append(&field, /* read only */
+ acpi_named_field(stringify(MEMORY_SLOT_ADDR_LOW), 32));
+ aml_append(&field, /* read only */
+ acpi_named_field(stringify(MEMORY_SLOT_ADDR_HIGH), 32));
+ aml_append(&field, /* read only */
+ acpi_named_field(stringify(MEMORY_SLOT_SIZE_LOW), 32));
+ aml_append(&field, /* read only */
+ acpi_named_field(stringify(MEMORY_SLOT_SIZE_HIGH), 32));
+ aml_append(&field, /* read only */
+ acpi_named_field(stringify(MEMORY_SLOT_PROXIMITY), 32));
+ aml_append(&scope, field);
+
+ field = acpi_field(stringify(MEMORY_HOTPLUG_IO_REGION), acpi_byte_acc);
+ aml_append(&field, acpi_reserved_field(160 /* Offset(20) */));
+ aml_append(&field, /* 1 if enabled, read only */
+ acpi_named_field(stringify(MEMORY_SLOT_ENABLED), 1));
+ aml_append(&field,
+ /*(read) 1 if has a insert event. (write) 1 to clear event */
+ acpi_named_field(stringify(MEMORY_SLOT_INSERT_EVENT), 1));
+ aml_append(&scope, field);
+
+ field = acpi_field(stringify(MEMORY_HOTPLUG_IO_REGION),
acpi_dword_acc);
+ aml_append(&field, /* DIMM selector, write only */
+ acpi_named_field(stringify(MEMORY_SLOT_SLECTOR), 32));
+ aml_append(&field, /* _OST event code, write only */
+ acpi_named_field(stringify(MEMORY_SLOT_OST_EVENT), 32));
+ aml_append(&field, /* _OST status code, write only */
+ acpi_named_field(stringify(MEMORY_SLOT_OST_STATUS), 32));
+ aml_append(&scope, field);
+
+ aml_append(&sb_scope, scope);
for (i = 0; i < nr_mem; i++) {
#define BASEPATH "\\_SB.PCI0." stringify(MEMORY_HOTPLUG_DEVICE) "."
diff --git a/hw/i386/acpi-dsdt-mem-hotplug.dsl
b/hw/i386/acpi-dsdt-mem-hotplug.dsl
index 2a36c47..1e9ec39 100644
--- a/hw/i386/acpi-dsdt-mem-hotplug.dsl
+++ b/hw/i386/acpi-dsdt-mem-hotplug.dsl
@@ -22,14 +22,16 @@
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)
- })
+ External(MEMORY_SLOT_ADDR_LOW, FieldUnitObj) // read only
+ External(MEMORY_SLOT_ADDR_HIGH, FieldUnitObj) // read only
+ External(MEMORY_SLOT_SIZE_LOW, FieldUnitObj) // read only
+ External(MEMORY_SLOT_SIZE_HIGH, FieldUnitObj) // read only
+ External(MEMORY_SLOT_PROXIMITY, FieldUnitObj) // read only
+ External(MEMORY_SLOT_ENABLED, FieldUnitObj) // 1 if enabled, read
only
+ External(MEMORY_SLOT_INSERT_EVENT, FieldUnitObj) // (read) 1 if
has a insert event. (write) 1 to clear event
+ External(MEMORY_SLOT_SLECTOR, FieldUnitObj) // DIMM selector,
write only
+ External(MEMORY_SLOT_OST_EVENT, FieldUnitObj) // _OST event code,
write only
+ External(MEMORY_SLOT_OST_STATUS, FieldUnitObj) // _OST status
code, write only
Method(_STA, 0) {
If (LEqual(MEMORY_SLOTS_NUMBER, Zero)) {
@@ -39,25 +41,7 @@
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)) {
diff --git a/hw/i386/ssdt-misc.dsl b/hw/i386/ssdt-misc.dsl
index 81be858..2588e30 100644
--- a/hw/i386/ssdt-misc.dsl
+++ b/hw/i386/ssdt-misc.dsl
@@ -36,7 +36,5 @@ DefinitionBlock ("ssdt-misc.aml", "SSDT", 0x01, "BXPC",
"BXSSDTSUSP", 0x1)
Name(P1E, Buffer() { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 })
ACPI_EXTRACT_NAME_BUFFER8 acpi_pci64_length
Name(P1L, Buffer() { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 })
- ACPI_EXTRACT_NAME_DWORD_CONST ssdt_mctrl_nr_slots
- Name(MEMORY_SLOTS_NUMBER, 0x12345678)
}
}
--
1.8.3.1
- [Qemu-devel] [PATCH v2 20/47] acpi: add acpi_buffer() term, (continued)
- [Qemu-devel] [PATCH v2 20/47] acpi: add acpi_buffer() term, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 28/47] pc: acpi-build: generate pvpanic device description dynamically, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 27/47] acpi: add acpi_string() term, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 29/47] acpi: add acpi_varpackage() term, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 31/47] acpi: add acpi_processor() term, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 35/47] acpi: add acpi_reserved_field() term, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 33/47] pc: acpi-build: drop template patching and CPU hotplug objects dynamically, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 36/47] pc: acpi-build: drop template patching and memory hotplug objects dynamically, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 32/47] acpi: add acpi_eisaid() term, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 34/47] pc: acpi-build: create CPU hotplug IO region dynamically, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 37/47] pc: acpi-build: create memory hotplug IO region dynamically,
Igor Mammedov <=
- [Qemu-devel] [PATCH v2 30/47] acpi: add acpi_equal() term, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 38/47] acpi: add acpi_word_bus_number(), acpi_word_io(), acpi_dword_memory(), acpi_qword_memory() terms, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 39/47] pc: pcihp: expose MMIO base and len as properties, Igor Mammedov, 2015/01/22
- [Qemu-devel] [PATCH v2 42/47] acpi: add acpi_def_block() term, Igor Mammedov, 2015/01/22
[Qemu-devel] [PATCH v2 40/47] pc: acpi-build: reserve PCIHP MMIO resources, Igor Mammedov, 2015/01/22
[Qemu-devel] [PATCH v2 41/47] pc: acpi-build: create PCI0._CRS dynamically, Igor Mammedov, 2015/01/22