new file mode 100644
@@ -0,0 +1,22 @@
+/*
+ * QEMU IPMI ACPI handling
+ *
+ * Copyright (c) 2015,2016 Corey Minyard <cminyard@mvista.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+#ifndef HW_ACPI_IPMI_H
+#define HW_ACPI_IPMI_H
+
+#include "qemu/osdep.h"
+#include "hw/acpi/aml-build.h"
+
+/*
+ * Add ACPI IPMI entries for all registered IPMI devices whose parent
+ * bus matches the given bus. The resource is the ACPI resource that
+ * contains the IPMI device, this is required for the I2C CRS.
+ */
+void build_acpi_ipmi_devices(Aml *table, BusState *bus);
+
+#endif /* HW_ACPI_IPMI_H */
new file mode 100644
@@ -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));
+ }
+}
@@ -58,6 +58,8 @@
#include "qapi/qmp/qint.h"
#include "qom/qom-qobject.h"
+#include "hw/acpi/ipmi.h"
+
/* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
* -M pc-i440fx-2.0. Even if the actual amount of AML generated grows
* a little bit, there should be plenty of free space since the DSDT
@@ -1334,8 +1336,10 @@ static Aml *build_com_device_aml(uint8_t uid)
static void build_isa_devices_aml(Aml *table)
{
ISADevice *fdc = pc_find_fdc0();
+ bool ambiguous;
Aml *scope = aml_scope("_SB.PCI0.ISA");
+ Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous);
aml_append(scope, build_rtc_device_aml());
aml_append(scope, build_kbd_device_aml());
@@ -1347,6 +1351,14 @@ static void build_isa_devices_aml(Aml *table)
aml_append(scope, build_com_device_aml(1));
aml_append(scope, build_com_device_aml(2));
+ if (ambiguous) {
+ error_report("Multiple ISA busses, unable to define IPMI ACPI data");
+ } else if (!obj) {
+ error_report("No ISA bus, unable to define IPMI ACPI data");
+ } else {
+ build_acpi_ipmi_devices(scope, BUS(obj));
+ }
+
aml_append(table, scope);
}
new file mode 100644
@@ -0,0 +1,14 @@
+/*
+ * 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 "hw/acpi/ipmi.h"
+
+void build_acpi_ipmi_devices(Aml *table, BusState *bus)
+{
+}
@@ -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
@@ -42,3 +42,4 @@ stub-obj-y += target-get-monitor-def.o
stub-obj-y += vhost.o
stub-obj-y += iohandler.o
stub-obj-y += smbios_type_38.o
+stub-obj-y += ipmi.o