From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51752) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YKm0I-0005M1-E1 for qemu-devel@nongnu.org; Mon, 09 Feb 2015 05:55:52 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YKm0C-0001Fl-7D for qemu-devel@nongnu.org; Mon, 09 Feb 2015 05:55:46 -0500 Received: from mx1.redhat.com ([209.132.183.28]:59046) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YKm0B-0001Ff-Ti for qemu-devel@nongnu.org; Mon, 09 Feb 2015 05:55:40 -0500 From: Igor Mammedov Date: Mon, 9 Feb 2015 10:54:04 +0000 Message-Id: <1423479254-15342-43-git-send-email-imammedo@redhat.com> In-Reply-To: <1423479254-15342-1-git-send-email-imammedo@redhat.com> References: <1423479254-15342-1-git-send-email-imammedo@redhat.com> Subject: [Qemu-devel] [PATCH v3 42/52] pc: acpi-build: create memory hotplug IO region dynamically List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: drjones@redhat.com, marcel.a@redhat.com, claudio.fontana@huawei.com, mst@redhat.com, zhaoshenglong@huawei.com 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 --- 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 18e69a7..256870b 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 { @@ -186,6 +188,9 @@ 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) { @@ -698,9 +703,6 @@ build_ssdt(Aml *table_data, 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 = aml_scope("\\"); if (!pm->s3_disabled) { @@ -837,6 +839,55 @@ build_ssdt(Aml *table_data, /* build memory devices */ assert(nr_mem <= ACPI_MAX_RAM_SLOTS); + scope = aml_scope("\\_SB.PCI0." stringify(MEMORY_HOTPLUG_DEVICE)); + aml_append(scope, + aml_name_decl(stringify(MEMORY_SLOTS_NUMBER), aml_int(nr_mem)) + ); + + crs = aml_resource_template(); + aml_append(crs, + aml_io(aml_decode16, pm->mem_hp_io_base, pm->mem_hp_io_base, 0, + pm->mem_hp_io_len) + ); + aml_append(scope, aml_name_decl("_CRS", crs)); + + aml_append(scope, aml_operation_region( + stringify(MEMORY_HOTPLUG_IO_REGION), aml_system_io, + pm->mem_hp_io_base, pm->mem_hp_io_len) + ); + + field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), aml_dword_acc); + aml_append(field, /* read only */ + aml_named_field(stringify(MEMORY_SLOT_ADDR_LOW), 32)); + aml_append(field, /* read only */ + aml_named_field(stringify(MEMORY_SLOT_ADDR_HIGH), 32)); + aml_append(field, /* read only */ + aml_named_field(stringify(MEMORY_SLOT_SIZE_LOW), 32)); + aml_append(field, /* read only */ + aml_named_field(stringify(MEMORY_SLOT_SIZE_HIGH), 32)); + aml_append(field, /* read only */ + aml_named_field(stringify(MEMORY_SLOT_PROXIMITY), 32)); + aml_append(scope, field); + + field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), aml_byte_acc); + aml_append(field, aml_reserved_field(160 /* bits, Offset(20) */)); + aml_append(field, /* 1 if enabled, read only */ + aml_named_field(stringify(MEMORY_SLOT_ENABLED), 1)); + aml_append(field, + /*(read) 1 if has a insert event. (write) 1 to clear event */ + aml_named_field(stringify(MEMORY_SLOT_INSERT_EVENT), 1)); + aml_append(scope, field); + + field = aml_field(stringify(MEMORY_HOTPLUG_IO_REGION), aml_dword_acc); + aml_append(field, /* DIMM selector, write only */ + aml_named_field(stringify(MEMORY_SLOT_SLECTOR), 32)); + aml_append(field, /* _OST event code, write only */ + aml_named_field(stringify(MEMORY_SLOT_OST_EVENT), 32)); + aml_append(field, /* _OST status code, write only */ + aml_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