diff options
Diffstat (limited to 'hw/acpi')
| -rw-r--r-- | hw/acpi/Makefile.objs | 1 | ||||
| -rw-r--r-- | hw/acpi/ipmi.c | 105 |
2 files changed, 106 insertions, 0 deletions
diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs index 66bd72702b..1a48f61676 100644 --- a/hw/acpi/Makefile.objs +++ b/hw/acpi/Makefile.objs @@ -6,3 +6,4 @@ obj-$(CONFIG_ACPI_NVDIMM) += nvdimm.o common-obj-$(CONFIG_ACPI) += acpi_interface.o common-obj-$(CONFIG_ACPI) += bios-linker-loader.o common-obj-$(CONFIG_ACPI) += aml-build.o +common-obj-$(call land,$(CONFIG_ACPI),$(CONFIG_IPMI)) += ipmi.o diff --git a/hw/acpi/ipmi.c b/hw/acpi/ipmi.c new file mode 100644 index 0000000000..7e74ce4460 --- /dev/null +++ b/hw/acpi/ipmi.c @@ -0,0 +1,105 @@ +/* + * IPMI ACPI firmware handling + * + * Copyright (c) 2015,2016 Corey Minyard, MontaVista Software, LLC + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "hw/ipmi/ipmi.h" +#include "hw/acpi/aml-build.h" +#include "hw/acpi/acpi.h" +#include "hw/acpi/ipmi.h" + +static Aml *aml_ipmi_crs(IPMIFwInfo *info) +{ + Aml *crs = aml_resource_template(); + + /* + * The base address is fixed and cannot change. That may be different + * if someone does PCI, but we aren't there yet. + */ + switch (info->memspace) { + case IPMI_MEMSPACE_IO: + aml_append(crs, aml_io(AML_DECODE16, info->base_address, + info->base_address + info->register_length - 1, + info->register_spacing, info->register_length)); + break; + case IPMI_MEMSPACE_MEM32: + aml_append(crs, + aml_dword_memory(AML_POS_DECODE, + AML_MIN_FIXED, AML_MAX_FIXED, + AML_NON_CACHEABLE, AML_READ_WRITE, + 0xffffffff, + info->base_address, + info->base_address + info->register_length - 1, + info->register_spacing, info->register_length)); + break; + case IPMI_MEMSPACE_MEM64: + aml_append(crs, + aml_qword_memory(AML_POS_DECODE, + AML_MIN_FIXED, AML_MAX_FIXED, + AML_NON_CACHEABLE, AML_READ_WRITE, + 0xffffffffffffffffULL, + info->base_address, + info->base_address + info->register_length - 1, + info->register_spacing, info->register_length)); + break; + case IPMI_MEMSPACE_SMBUS: + aml_append(crs, aml_return(aml_int(info->base_address))); + break; + default: + abort(); + } + + if (info->interrupt_number) { + aml_append(crs, aml_irq_no_flags(info->interrupt_number)); + } + + return crs; +} + +static Aml *aml_ipmi_device(IPMIFwInfo *info) +{ + Aml *dev; + uint16_t version = ((info->ipmi_spec_major_revision << 8) + | (info->ipmi_spec_minor_revision << 4)); + + assert(info->ipmi_spec_minor_revision <= 15); + + dev = aml_device("MI%d", info->uuid); + aml_append(dev, aml_name_decl("_HID", aml_eisaid("IPI0001"))); + aml_append(dev, aml_name_decl("_STR", aml_string("ipmi_%s", + info->interface_name))); + aml_append(dev, aml_name_decl("_UID", aml_int(info->uuid))); + aml_append(dev, aml_name_decl("_CRS", aml_ipmi_crs(info))); + aml_append(dev, aml_name_decl("_IFT", aml_int(info->interface_type))); + aml_append(dev, aml_name_decl("_SRV", aml_int(version))); + + return dev; +} + +void build_acpi_ipmi_devices(Aml *scope, BusState *bus) +{ + + BusChild *kid; + + QTAILQ_FOREACH(kid, &bus->children, sibling) { + IPMIInterface *ii; + IPMIInterfaceClass *iic; + IPMIFwInfo info; + Object *obj = object_dynamic_cast(OBJECT(kid->child), + TYPE_IPMI_INTERFACE); + + if (!obj) { + continue; + } + + ii = IPMI_INTERFACE(obj); + iic = IPMI_INTERFACE_GET_CLASS(obj); + iic->get_fwinfo(ii, &info); + aml_append(scope, aml_ipmi_device(&info)); + } +} |