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[PATCH v9 06/10] ACPI ERST: build the ACPI ERST table
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From: |
Eric DeVolder |
|
Subject: |
[PATCH v9 06/10] ACPI ERST: build the ACPI ERST table |
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Date: |
Thu, 2 Dec 2021 14:08:58 -0500 |
This builds the ACPI ERST table to inform OSPM how to communicate
with the acpi-erst device.
Signed-off-by: Eric DeVolder <eric.devolder@oracle.com>
---
hw/acpi/erst.c | 241 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 241 insertions(+)
diff --git a/hw/acpi/erst.c b/hw/acpi/erst.c
index 4304f55..06a87af 100644
--- a/hw/acpi/erst.c
+++ b/hw/acpi/erst.c
@@ -701,6 +701,247 @@ static const MemoryRegionOps erst_reg_ops = {
.endianness = DEVICE_NATIVE_ENDIAN,
};
+
+/*******************************************************************/
+/*******************************************************************/
+
+/* ACPI 4.0: Table 17-19 Serialization Instructions */
+#define INST_READ_REGISTER 0x00
+#define INST_READ_REGISTER_VALUE 0x01
+#define INST_WRITE_REGISTER 0x02
+#define INST_WRITE_REGISTER_VALUE 0x03
+#define INST_NOOP 0x04
+#define INST_LOAD_VAR1 0x05
+#define INST_LOAD_VAR2 0x06
+#define INST_STORE_VAR1 0x07
+#define INST_ADD 0x08
+#define INST_SUBTRACT 0x09
+#define INST_ADD_VALUE 0x0A
+#define INST_SUBTRACT_VALUE 0x0B
+#define INST_STALL 0x0C
+#define INST_STALL_WHILE_TRUE 0x0D
+#define INST_SKIP_NEXT_INSTRUCTION_IF_TRUE 0x0E
+#define INST_GOTO 0x0F
+#define INST_SET_SRC_ADDRESS_BASE 0x10
+#define INST_SET_DST_ADDRESS_BASE 0x11
+#define INST_MOVE_DATA 0x12
+
+/* ACPI 4.0: 17.4.1.2 Serialization Instruction Entries */
+static void build_serialization_instruction_entry(GArray *table_data,
+ uint8_t serialization_action,
+ uint8_t instruction,
+ uint8_t flags,
+ uint8_t register_bit_width,
+ uint64_t register_address,
+ uint64_t value,
+ uint64_t mask)
+{
+ /* ACPI 4.0: Table 17-18 Serialization Instruction Entry */
+ struct AcpiGenericAddress gas;
+
+ /* Serialization Action */
+ build_append_int_noprefix(table_data, serialization_action, 1);
+ /* Instruction */
+ build_append_int_noprefix(table_data, instruction , 1);
+ /* Flags */
+ build_append_int_noprefix(table_data, flags , 1);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0 , 1);
+ /* Register Region */
+ gas.space_id = AML_SYSTEM_MEMORY;
+ gas.bit_width = register_bit_width;
+ gas.bit_offset = 0;
+ switch (register_bit_width) {
+ case 8:
+ gas.access_width = 1;
+ break;
+ case 16:
+ gas.access_width = 2;
+ break;
+ case 32:
+ gas.access_width = 3;
+ break;
+ case 64:
+ gas.access_width = 4;
+ break;
+ default:
+ gas.access_width = 0;
+ break;
+ }
+ gas.address = register_address;
+ build_append_gas_from_struct(table_data, &gas);
+ /* Value */
+ build_append_int_noprefix(table_data, value , 8);
+ /* Mask */
+ build_append_int_noprefix(table_data, mask , 8);
+}
+
+/* ACPI 4.0: 17.4.1 Serialization Action Table */
+void build_erst(GArray *table_data, BIOSLinker *linker, Object *erst_dev,
+ const char *oem_id, const char *oem_table_id)
+{
+ GArray *table_instruction_data;
+ unsigned action;
+ hwaddr bar0, bar1;
+ AcpiTable table = { .sig = "ERST", .rev = 1, .oem_id = oem_id,
+ .oem_table_id = oem_table_id };
+
+ bar0 = (hwaddr)pci_get_bar_addr(PCI_DEVICE(erst_dev), 0);
+ trace_acpi_erst_pci_bar_0(bar0);
+ bar1 = (hwaddr)pci_get_bar_addr(PCI_DEVICE(erst_dev), 1);
+ trace_acpi_erst_pci_bar_1(bar1);
+
+#define MASK8 0x00000000000000FFUL
+#define MASK16 0x000000000000FFFFUL
+#define MASK32 0x00000000FFFFFFFFUL
+#define MASK64 0xFFFFFFFFFFFFFFFFUL
+
+ /*
+ * Serialization Action Table
+ * The serialization action table must be generated first
+ * so that its size can be known in order to populate the
+ * Instruction Entry Count field.
+ */
+ table_instruction_data = g_array_new(FALSE, FALSE, sizeof(char));
+
+ /* Serialization Instruction Entries */
+ action = ACTION_BEGIN_WRITE_OPERATION;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_BEGIN_READ_OPERATION;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_BEGIN_CLEAR_OPERATION;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_END_OPERATION;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_SET_RECORD_OFFSET;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER , 0, 32,
+ bar0 + ERST_VALUE_OFFSET , 0, MASK32);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_EXECUTE_OPERATION;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_VALUE_OFFSET , ERST_EXECUTE_OPERATION_MAGIC, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_CHECK_BUSY_STATUS;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER_VALUE , 0, 32,
+ bar0 + ERST_VALUE_OFFSET, 0x01, MASK8);
+
+ action = ACTION_GET_COMMAND_STATUS;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER , 0, 32,
+ bar0 + ERST_VALUE_OFFSET, 0, MASK8);
+
+ action = ACTION_GET_RECORD_IDENTIFIER;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER , 0, 64,
+ bar0 + ERST_VALUE_OFFSET, 0, MASK64);
+
+ action = ACTION_SET_RECORD_IDENTIFIER;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER , 0, 64,
+ bar0 + ERST_VALUE_OFFSET , 0, MASK64);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_GET_RECORD_COUNT;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER , 0, 32,
+ bar0 + ERST_VALUE_OFFSET, 0, MASK32);
+
+ action = ACTION_BEGIN_DUMMY_WRITE_OPERATION;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+
+ action = ACTION_GET_ERROR_LOG_ADDRESS_RANGE;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER , 0, 64,
+ bar0 + ERST_VALUE_OFFSET, 0, MASK64);
+
+ action = ACTION_GET_ERROR_LOG_ADDRESS_LENGTH;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER , 0, 64,
+ bar0 + ERST_VALUE_OFFSET, 0, MASK32);
+
+ action = ACTION_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER , 0, 32,
+ bar0 + ERST_VALUE_OFFSET, 0, MASK32);
+
+ action = ACTION_GET_EXECUTE_OPERATION_TIMINGS;
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_WRITE_REGISTER_VALUE, 0, 32,
+ bar0 + ERST_ACTION_OFFSET, action, MASK8);
+ build_serialization_instruction_entry(table_instruction_data,
+ action, INST_READ_REGISTER , 0, 64,
+ bar0 + ERST_VALUE_OFFSET, 0, MASK64);
+
+ /* Serialization Header */
+ acpi_table_begin(&table, table_data);
+
+ /* Serialization Header Size */
+ build_append_int_noprefix(table_data, 48, 4);
+
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 4);
+
+ /*
+ * Instruction Entry Count
+ * Each instruction entry is 32 bytes
+ */
+ build_append_int_noprefix(table_data,
+ (table_instruction_data->len / 32), 4);
+
+ /* Serialization Instruction Entries */
+ g_array_append_vals(table_data, table_instruction_data->data,
+ table_instruction_data->len);
+ g_array_free(table_instruction_data, TRUE);
+
+ acpi_table_end(linker, &table);
+}
+
/*******************************************************************/
/*******************************************************************/
static int erst_post_load(void *opaque, int version_id)
--
1.8.3.1
- Re: [PATCH v9 05/10] ACPI ERST: support for ACPI ERST feature, (continued)
[PATCH v9 09/10] ACPI ERST: bios-tables-test testcase, Eric DeVolder, 2021/12/02
[PATCH v9 07/10] ACPI ERST: create ACPI ERST table for pc/x86 machines, Eric DeVolder, 2021/12/02
[PATCH v9 06/10] ACPI ERST: build the ACPI ERST table,
Eric DeVolder <=
[PATCH v9 08/10] ACPI ERST: qtest for ERST, Eric DeVolder, 2021/12/02