aboutsummaryrefslogtreecommitdiff
path: root/hw/acpi
diff options
context:
space:
mode:
Diffstat (limited to 'hw/acpi')
-rw-r--r--hw/acpi/Makefile.objs4
-rw-r--r--hw/acpi/aml-build-stub.c79
-rw-r--r--hw/acpi/generic_event_device.c15
-rw-r--r--hw/acpi/nvdimm.c72
4 files changed, 154 insertions, 16 deletions
diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs
index 777da07f4d..cab9bcd457 100644
--- a/hw/acpi/Makefile.objs
+++ b/hw/acpi/Makefile.objs
@@ -20,6 +20,6 @@ common-obj-$(CONFIG_TPM) += tpm.o
common-obj-$(CONFIG_IPMI) += ipmi.o
common-obj-$(call lnot,$(CONFIG_IPMI)) += ipmi-stub.o
else
-common-obj-y += acpi-stub.o
+common-obj-y += acpi-stub.o aml-build-stub.o
endif
-common-obj-$(CONFIG_ALL) += acpi-stub.o acpi-x86-stub.o ipmi-stub.o
+common-obj-$(CONFIG_ALL) += acpi-stub.o aml-build-stub.o acpi-x86-stub.o ipmi-stub.o
diff --git a/hw/acpi/aml-build-stub.c b/hw/acpi/aml-build-stub.c
new file mode 100644
index 0000000000..58b2e16227
--- /dev/null
+++ b/hw/acpi/aml-build-stub.c
@@ -0,0 +1,79 @@
+/*
+ * ACPI aml builder stubs for platforms that don't support ACPI.
+ *
+ * Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2016 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "qemu/osdep.h"
+#include "hw/acpi/acpi.h"
+#include "hw/acpi/aml-build.h"
+
+void aml_append(Aml *parent_ctx, Aml *child)
+{
+}
+
+Aml *aml_resource_template(void)
+{
+ return NULL;
+}
+
+Aml *aml_device(const char *name_format, ...)
+{
+ return NULL;
+}
+
+Aml *aml_eisaid(const char *str)
+{
+ return NULL;
+}
+
+Aml *aml_name_decl(const char *name, Aml *val)
+{
+ return NULL;
+}
+
+Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,
+ uint8_t aln, uint8_t len)
+{
+ return NULL;
+}
+
+Aml *aml_irq_no_flags(uint8_t irq)
+{
+ return NULL;
+}
+
+Aml *aml_int(const uint64_t val)
+{
+ return NULL;
+}
+
+Aml *aml_package(uint8_t num_elements)
+{
+ return NULL;
+}
+
+Aml *aml_dma(AmlDmaType typ, AmlDmaBusMaster bm, AmlTransferSize sz,
+ uint8_t channel)
+{
+ return NULL;
+}
+
+Aml *aml_buffer(int buffer_size, uint8_t *byte_list)
+{
+ return NULL;
+}
diff --git a/hw/acpi/generic_event_device.c b/hw/acpi/generic_event_device.c
index 021ed2bf23..5d17f78a1e 100644
--- a/hw/acpi/generic_event_device.c
+++ b/hw/acpi/generic_event_device.c
@@ -16,6 +16,7 @@
#include "hw/acpi/generic_event_device.h"
#include "hw/irq.h"
#include "hw/mem/pc-dimm.h"
+#include "hw/mem/nvdimm.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
#include "qemu/error-report.h"
@@ -23,6 +24,7 @@
static const uint32_t ged_supported_events[] = {
ACPI_GED_MEM_HOTPLUG_EVT,
ACPI_GED_PWR_DOWN_EVT,
+ ACPI_GED_NVDIMM_HOTPLUG_EVT,
};
/*
@@ -110,6 +112,11 @@ void build_ged_aml(Aml *table, const char *name, HotplugHandler *hotplug_dev,
aml_notify(aml_name(ACPI_POWER_BUTTON_DEVICE),
aml_int(0x80)));
break;
+ case ACPI_GED_NVDIMM_HOTPLUG_EVT:
+ aml_append(if_ctx,
+ aml_notify(aml_name("\\_SB.NVDR"),
+ aml_int(0x80)));
+ break;
default:
/*
* Please make sure all the events in ged_supported_events[]
@@ -175,7 +182,11 @@ static void acpi_ged_device_plug_cb(HotplugHandler *hotplug_dev,
AcpiGedState *s = ACPI_GED(hotplug_dev);
if (object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) {
- acpi_memory_plug_cb(hotplug_dev, &s->memhp_state, dev, errp);
+ if (object_dynamic_cast(OBJECT(dev), TYPE_NVDIMM)) {
+ nvdimm_acpi_plug_cb(hotplug_dev, dev);
+ } else {
+ acpi_memory_plug_cb(hotplug_dev, &s->memhp_state, dev, errp);
+ }
} else {
error_setg(errp, "virt: device plug request for unsupported device"
" type: %s", object_get_typename(OBJECT(dev)));
@@ -192,6 +203,8 @@ static void acpi_ged_send_event(AcpiDeviceIf *adev, AcpiEventStatusBits ev)
sel = ACPI_GED_MEM_HOTPLUG_EVT;
} else if (ev & ACPI_POWER_DOWN_STATUS) {
sel = ACPI_GED_PWR_DOWN_EVT;
+ } else if (ev & ACPI_NVDIMM_HOTPLUG_STATUS) {
+ sel = ACPI_GED_NVDIMM_HOTPLUG_EVT;
} else {
/* Unknown event. Return without generating interrupt. */
warn_report("GED: Unsupported event %d. No irq injected", ev);
diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index eb6a37b14e..fa7bf8b507 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -900,11 +900,13 @@ void nvdimm_acpi_plug_cb(HotplugHandler *hotplug_dev, DeviceState *dev)
}
void nvdimm_init_acpi_state(NVDIMMState *state, MemoryRegion *io,
+ struct AcpiGenericAddress dsm_io,
FWCfgState *fw_cfg, Object *owner)
{
+ state->dsm_io = dsm_io;
memory_region_init_io(&state->io_mr, owner, &nvdimm_dsm_ops, state,
- "nvdimm-acpi-io", NVDIMM_ACPI_IO_LEN);
- memory_region_add_subregion(io, NVDIMM_ACPI_IO_BASE, &state->io_mr);
+ "nvdimm-acpi-io", dsm_io.bit_width >> 3);
+ memory_region_add_subregion(io, dsm_io.address, &state->io_mr);
state->dsm_mem = g_array_new(false, true /* clear */, 1);
acpi_data_push(state->dsm_mem, sizeof(NvdimmDsmIn));
@@ -933,12 +935,15 @@ void nvdimm_init_acpi_state(NVDIMMState *state, MemoryRegion *io,
#define NVDIMM_QEMU_RSVD_UUID "648B9CF2-CDA1-4312-8AD9-49C4AF32BD62"
-static void nvdimm_build_common_dsm(Aml *dev)
+static void nvdimm_build_common_dsm(Aml *dev,
+ NVDIMMState *nvdimm_state)
{
Aml *method, *ifctx, *function, *handle, *uuid, *dsm_mem, *elsectx2;
Aml *elsectx, *unsupport, *unpatched, *expected_uuid, *uuid_invalid;
Aml *pckg, *pckg_index, *pckg_buf, *field, *dsm_out_buf, *dsm_out_buf_size;
+ Aml *whilectx, *offset;
uint8_t byte_list[1];
+ AmlRegionSpace rs;
method = aml_method(NVDIMM_COMMON_DSM, 5, AML_SERIALIZED);
uuid = aml_arg(0);
@@ -949,9 +954,16 @@ static void nvdimm_build_common_dsm(Aml *dev)
aml_append(method, aml_store(aml_name(NVDIMM_ACPI_MEM_ADDR), dsm_mem));
+ if (nvdimm_state->dsm_io.space_id == AML_AS_SYSTEM_IO) {
+ rs = AML_SYSTEM_IO;
+ } else {
+ rs = AML_SYSTEM_MEMORY;
+ }
+
/* map DSM memory and IO into ACPI namespace. */
- aml_append(method, aml_operation_region(NVDIMM_DSM_IOPORT, AML_SYSTEM_IO,
- aml_int(NVDIMM_ACPI_IO_BASE), NVDIMM_ACPI_IO_LEN));
+ aml_append(method, aml_operation_region(NVDIMM_DSM_IOPORT, rs,
+ aml_int(nvdimm_state->dsm_io.address),
+ nvdimm_state->dsm_io.bit_width >> 3));
aml_append(method, aml_operation_region(NVDIMM_DSM_MEMORY,
AML_SYSTEM_MEMORY, dsm_mem, sizeof(NvdimmDsmIn)));
@@ -966,7 +978,7 @@ static void nvdimm_build_common_dsm(Aml *dev)
field = aml_field(NVDIMM_DSM_IOPORT, AML_DWORD_ACC, AML_NOLOCK,
AML_PRESERVE);
aml_append(field, aml_named_field(NVDIMM_DSM_NOTIFY,
- NVDIMM_ACPI_IO_LEN * BITS_PER_BYTE));
+ nvdimm_state->dsm_io.bit_width));
aml_append(method, field);
/*
@@ -1091,13 +1103,46 @@ static void nvdimm_build_common_dsm(Aml *dev)
/* RLEN is not included in the payload returned to guest. */
aml_append(method, aml_subtract(aml_name(NVDIMM_DSM_OUT_BUF_SIZE),
aml_int(4), dsm_out_buf_size));
+
+ /*
+ * As per ACPI spec 6.3, Table 19-419 Object Conversion Rules, if
+ * the Buffer Field <= to the size of an Integer (in bits), it will
+ * be treated as an integer. Moreover, the integer size depends on
+ * DSDT tables revision number. If revision number is < 2, integer
+ * size is 32 bits, otherwise it is 64 bits.
+ * Because of this CreateField() canot be used if RLEN < Integer Size.
+ *
+ * Also please note that APCI ASL operator SizeOf() doesn't support
+ * Integer and there isn't any other way to figure out the Integer
+ * size. Hence we assume 8 byte as Integer size and if RLEN < 8 bytes,
+ * build dsm_out_buf byte by byte.
+ */
+ ifctx = aml_if(aml_lless(dsm_out_buf_size, aml_int(8)));
+ offset = aml_local(2);
+ aml_append(ifctx, aml_store(aml_int(0), offset));
+ aml_append(ifctx, aml_name_decl("TBUF", aml_buffer(1, NULL)));
+ aml_append(ifctx, aml_store(aml_buffer(0, NULL), dsm_out_buf));
+
+ whilectx = aml_while(aml_lless(offset, dsm_out_buf_size));
+ /* Copy 1 byte at offset from ODAT to temporary buffer(TBUF). */
+ aml_append(whilectx, aml_store(aml_derefof(aml_index(
+ aml_name(NVDIMM_DSM_OUT_BUF), offset)),
+ aml_index(aml_name("TBUF"), aml_int(0))));
+ aml_append(whilectx, aml_concatenate(dsm_out_buf, aml_name("TBUF"),
+ dsm_out_buf));
+ aml_append(whilectx, aml_increment(offset));
+ aml_append(ifctx, whilectx);
+
+ aml_append(ifctx, aml_return(dsm_out_buf));
+ aml_append(method, ifctx);
+
+ /* If RLEN >= Integer size, just use CreateField() operator */
aml_append(method, aml_store(aml_shiftleft(dsm_out_buf_size, aml_int(3)),
dsm_out_buf_size));
aml_append(method, aml_create_field(aml_name(NVDIMM_DSM_OUT_BUF),
aml_int(0), dsm_out_buf_size, "OBUF"));
- aml_append(method, aml_concatenate(aml_buffer(0, NULL), aml_name("OBUF"),
- dsm_out_buf));
- aml_append(method, aml_return(dsm_out_buf));
+ aml_append(method, aml_return(aml_name("OBUF")));
+
aml_append(dev, method);
}
@@ -1234,7 +1279,8 @@ static void nvdimm_build_nvdimm_devices(Aml *root_dev, uint32_t ram_slots)
}
static void nvdimm_build_ssdt(GArray *table_offsets, GArray *table_data,
- BIOSLinker *linker, GArray *dsm_dma_area,
+ BIOSLinker *linker,
+ NVDIMMState *nvdimm_state,
uint32_t ram_slots)
{
Aml *ssdt, *sb_scope, *dev;
@@ -1262,7 +1308,7 @@ static void nvdimm_build_ssdt(GArray *table_offsets, GArray *table_data,
*/
aml_append(dev, aml_name_decl("_HID", aml_string("ACPI0012")));
- nvdimm_build_common_dsm(dev);
+ nvdimm_build_common_dsm(dev, nvdimm_state);
/* 0 is reserved for root device. */
nvdimm_build_device_dsm(dev, 0);
@@ -1281,7 +1327,7 @@ static void nvdimm_build_ssdt(GArray *table_offsets, GArray *table_data,
NVDIMM_ACPI_MEM_ADDR);
bios_linker_loader_alloc(linker,
- NVDIMM_DSM_MEM_FILE, dsm_dma_area,
+ NVDIMM_DSM_MEM_FILE, nvdimm_state->dsm_mem,
sizeof(NvdimmDsmIn), false /* high memory */);
bios_linker_loader_add_pointer(linker,
ACPI_BUILD_TABLE_FILE, mem_addr_offset, sizeof(uint32_t),
@@ -1303,7 +1349,7 @@ void nvdimm_build_acpi(GArray *table_offsets, GArray *table_data,
return;
}
- nvdimm_build_ssdt(table_offsets, table_data, linker, state->dsm_mem,
+ nvdimm_build_ssdt(table_offsets, table_data, linker, state,
ram_slots);
device_list = nvdimm_get_device_list();
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-29 06:56:25 +0000