From 091c466e26867656d3d650a3a5a40169b97648a1 Mon Sep 17 00:00:00 2001 From: Shameer Kolothum Date: Wed, 18 Sep 2019 14:06:23 +0100 Subject: [PATCH] hw/acpi: Make ACPI IO address space configurable This is in preparation for adding support for ARM64 platforms where it doesn't use port mapped IO for ACPI IO space. We are making changes so that MMIO region can be accommodated and board can pass the base address into the aml build function. Also move few MEMORY_* definitions to header so that other memory hotplug event signalling mechanisms (eg. Generic Event Device on HW-reduced acpi platforms) can use the same from their respective event handler code. Signed-off-by: Shameer Kolothum Reviewed-by: Eric Auger Reviewed-by: Igor Mammedov Message-Id: <20190918130633.4872-2-shameerali.kolothum.thodi@huawei.com> Acked-by: Peter Maydell Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/acpi/memory_hotplug.c | 33 ++++++++++++++------------------ hw/i386/acpi-build.c | 7 ++++++- hw/i386/pc.c | 3 +++ include/hw/acpi/memory_hotplug.h | 9 +++++++-- include/hw/i386/pc.h | 3 +++ 5 files changed, 33 insertions(+), 22 deletions(-) diff --git a/hw/acpi/memory_hotplug.c b/hw/acpi/memory_hotplug.c index 9483d66e8699..9b0b150f4fa8 100644 --- a/hw/acpi/memory_hotplug.c +++ b/hw/acpi/memory_hotplug.c @@ -30,12 +30,7 @@ #define MEMORY_SLOT_PROXIMITY_METHOD "MPXM" #define MEMORY_SLOT_EJECT_METHOD "MEJ0" #define MEMORY_SLOT_NOTIFY_METHOD "MTFY" -#define MEMORY_SLOT_SCAN_METHOD "MSCN" #define MEMORY_HOTPLUG_DEVICE "MHPD" -#define MEMORY_HOTPLUG_IO_LEN 24 -#define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC" - -static uint16_t memhp_io_base; static ACPIOSTInfo *acpi_memory_device_status(int slot, MemStatus *mdev) { @@ -210,7 +205,7 @@ static const MemoryRegionOps acpi_memory_hotplug_ops = { }; void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, - MemHotplugState *state, uint16_t io_base) + MemHotplugState *state, hwaddr io_base) { MachineState *machine = MACHINE(qdev_get_machine()); @@ -219,12 +214,10 @@ void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, return; } - assert(!memhp_io_base); - memhp_io_base = io_base; state->devs = g_malloc0(sizeof(*state->devs) * state->dev_count); memory_region_init_io(&state->io, owner, &acpi_memory_hotplug_ops, state, "acpi-mem-hotplug", MEMORY_HOTPLUG_IO_LEN); - memory_region_add_subregion(as, memhp_io_base, &state->io); + memory_region_add_subregion(as, io_base, &state->io); } /** @@ -343,7 +336,8 @@ const VMStateDescription vmstate_memory_hotplug = { void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, const char *res_root, - const char *event_handler_method) + const char *event_handler_method, + AmlRegionSpace rs, hwaddr memhp_io_base) { int i; Aml *ifctx; @@ -352,10 +346,6 @@ void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, Aml *mem_ctrl_dev; char *mhp_res_path; - if (!memhp_io_base) { - return; - } - mhp_res_path = g_strdup_printf("%s." MEMORY_HOTPLUG_DEVICE, res_root); mem_ctrl_dev = aml_device("%s", mhp_res_path); { @@ -366,14 +356,19 @@ void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, aml_name_decl("_UID", aml_string("Memory hotplug resources"))); crs = aml_resource_template(); - aml_append(crs, - aml_io(AML_DECODE16, memhp_io_base, memhp_io_base, 0, - MEMORY_HOTPLUG_IO_LEN) - ); + if (rs == AML_SYSTEM_IO) { + aml_append(crs, + aml_io(AML_DECODE16, memhp_io_base, memhp_io_base, 0, + MEMORY_HOTPLUG_IO_LEN) + ); + } else { + aml_append(crs, aml_memory32_fixed(memhp_io_base, + MEMORY_HOTPLUG_IO_LEN, AML_READ_WRITE)); + } aml_append(mem_ctrl_dev, aml_name_decl("_CRS", crs)); aml_append(mem_ctrl_dev, aml_operation_region( - MEMORY_HOTPLUG_IO_REGION, AML_SYSTEM_IO, + MEMORY_HOTPLUG_IO_REGION, rs, aml_int(memhp_io_base), MEMORY_HOTPLUG_IO_LEN) ); diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 4e0f9f425ab0..1d077a7cb772 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -1888,7 +1888,12 @@ build_dsdt(GArray *table_data, BIOSLinker *linker, build_cpus_aml(dsdt, machine, opts, pm->cpu_hp_io_base, "\\_SB.PCI0", "\\_GPE._E02"); } - build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0", "\\_GPE._E03"); + + if (pcms->memhp_io_base && nr_mem) { + build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0", + "\\_GPE._E03", AML_SYSTEM_IO, + pcms->memhp_io_base); + } scope = aml_scope("_GPE"); { diff --git a/hw/i386/pc.c b/hw/i386/pc.c index bcda50efcc23..4b1904237ec6 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -1766,6 +1766,9 @@ void pc_memory_init(PCMachineState *pcms, /* Init default IOAPIC address space */ pcms->ioapic_as = &address_space_memory; + + /* Init ACPI memory hotplug IO base address */ + pcms->memhp_io_base = ACPI_MEMORY_HOTPLUG_BASE; } /* diff --git a/include/hw/acpi/memory_hotplug.h b/include/hw/acpi/memory_hotplug.h index 77c65765d610..dfe9cf3fde10 100644 --- a/include/hw/acpi/memory_hotplug.h +++ b/include/hw/acpi/memory_hotplug.h @@ -5,6 +5,10 @@ #include "hw/acpi/acpi.h" #include "hw/acpi/aml-build.h" +#define MEMORY_SLOT_SCAN_METHOD "MSCN" +#define MEMORY_DEVICES_CONTAINER "\\_SB.MHPC" +#define MEMORY_HOTPLUG_IO_LEN 24 + /** * MemStatus: * @is_removing: the memory device in slot has been requested to be ejected. @@ -29,7 +33,7 @@ typedef struct MemHotplugState { } MemHotplugState; void acpi_memory_hotplug_init(MemoryRegion *as, Object *owner, - MemHotplugState *state, uint16_t io_base); + MemHotplugState *state, hwaddr io_base); void acpi_memory_plug_cb(HotplugHandler *hotplug_dev, MemHotplugState *mem_st, DeviceState *dev, Error **errp); @@ -48,5 +52,6 @@ void acpi_memory_ospm_status(MemHotplugState *mem_st, ACPIOSTInfoList ***list); void build_memory_hotplug_aml(Aml *table, uint32_t nr_mem, const char *res_root, - const char *event_handler_method); + const char *event_handler_method, + AmlRegionSpace rs, hwaddr memhp_io_base); #endif diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index 6df4f4b6fbe7..37bfd951139d 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -70,6 +70,9 @@ struct PCMachineState { /* Address space used by IOAPIC device. All IOAPIC interrupts * will be translated to MSI messages in the address space. */ AddressSpace *ioapic_as; + + /* ACPI Memory hotplug IO base address */ + hwaddr memhp_io_base; }; #define PC_MACHINE_ACPI_DEVICE_PROP "acpi-device"