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envelope-from=eric.devolder@oracle.com; helo=mx0a-00069f02.pphosted.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H5=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: berrange@redhat.com, ehabkost@redhat.com, mst@redhat.com, konrad.wilk@oracle.com, pbonzini@redhat.com, ani@anisinha.ca, imammedo@redhat.com, boris.ostrovsky@oracle.com, rth@twiddle.net Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This builds the ACPI ERST table to inform OSPM how to communicate with the acpi-erst device. Signed-off-by: Eric DeVolder --- hw/acpi/erst.c | 188 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 188 insertions(+) diff --git a/hw/acpi/erst.c b/hw/acpi/erst.c index fe9ba51..b0c7539 100644 --- a/hw/acpi/erst.c +++ b/hw/acpi/erst.c @@ -59,6 +59,27 @@ #define STATUS_RECORD_STORE_EMPTY 0x04 #define STATUS_RECORD_NOT_FOUND 0x05 +/* 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 + /* UEFI 2.1: Appendix N Common Platform Error Record */ #define UEFI_CPER_RECORD_MIN_SIZE 128U #define UEFI_CPER_RECORD_LENGTH_OFFSET 20U @@ -172,6 +193,173 @@ typedef struct { /*******************************************************************/ /*******************************************************************/ + +/* 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) +{ + /* ACPI 4.0: Table 17-18 Serialization Instruction Entry */ + struct AcpiGenericAddress gas; + uint64_t mask; + + /* 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; + gas.access_width = ctz32(register_bit_width) - 2; + gas.address = register_address; + build_append_gas_from_struct(table_data, &gas); + /* Value */ + build_append_int_noprefix(table_data, value , 8); + /* Mask */ + mask = (1ULL << (register_bit_width - 1) << 1) - 1; + 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; + pcibus_t bar0 = pci_get_bar_addr(PCI_DEVICE(erst_dev), 0); + AcpiTable table = { .sig = "ERST", .rev = 1, .oem_id = oem_id, + .oem_table_id = oem_table_id }; + + trace_acpi_erst_pci_bar_0(bar0); + + /* + * 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)); + + /* + * Macros for use with construction of the action instructions + */ +#define BUILD_READ_REGISTER(width_in_bits, reg) \ + build_serialization_instruction_entry(table_instruction_data, \ + action, INST_READ_REGISTER, 0, width_in_bits, \ + bar0 + reg, 0) + +#define BUILD_READ_REGISTER_VALUE(width_in_bits, reg, value) \ + build_serialization_instruction_entry(table_instruction_data, \ + action, INST_READ_REGISTER_VALUE, 0, width_in_bits, \ + bar0 + reg, value) + +#define BUILD_WRITE_REGISTER(width_in_bits, reg, value) \ + build_serialization_instruction_entry(table_instruction_data, \ + action, INST_WRITE_REGISTER, 0, width_in_bits, \ + bar0 + reg, value) + +#define BUILD_WRITE_REGISTER_VALUE(width_in_bits, reg, value) \ + build_serialization_instruction_entry(table_instruction_data, \ + action, INST_WRITE_REGISTER_VALUE, 0, width_in_bits, \ + bar0 + reg, value) + + /* Serialization Instruction Entries */ + action = ACTION_BEGIN_WRITE_OPERATION; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_BEGIN_READ_OPERATION; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_BEGIN_CLEAR_OPERATION; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_END_OPERATION; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_SET_RECORD_OFFSET; + BUILD_WRITE_REGISTER(32, ERST_VALUE_OFFSET, 0); + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_EXECUTE_OPERATION; + BUILD_WRITE_REGISTER_VALUE(32, ERST_VALUE_OFFSET, + ERST_EXECUTE_OPERATION_MAGIC); + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_CHECK_BUSY_STATUS; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER_VALUE(32, ERST_VALUE_OFFSET, 0x01); + + action = ACTION_GET_COMMAND_STATUS; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER(32, ERST_VALUE_OFFSET); + + action = ACTION_GET_RECORD_IDENTIFIER; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER(64, ERST_VALUE_OFFSET); + + action = ACTION_SET_RECORD_IDENTIFIER; + BUILD_WRITE_REGISTER(64, ERST_VALUE_OFFSET, 0); + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_GET_RECORD_COUNT; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER(32, ERST_VALUE_OFFSET); + + action = ACTION_BEGIN_DUMMY_WRITE_OPERATION; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + + action = ACTION_GET_ERROR_LOG_ADDRESS_RANGE; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER(64, ERST_VALUE_OFFSET); + + action = ACTION_GET_ERROR_LOG_ADDRESS_LENGTH; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER(64, ERST_VALUE_OFFSET); + + action = ACTION_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER(32, ERST_VALUE_OFFSET); + + action = ACTION_GET_EXECUTE_OPERATION_TIMINGS; + BUILD_WRITE_REGISTER_VALUE(32, ERST_ACTION_OFFSET, action); + BUILD_READ_REGISTER(64, ERST_VALUE_OFFSET); + + /* 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 + */ + g_assert((table_instruction_data->len) % 32 == 0); + 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 uint8_t *get_nvram_ptr_by_index(ERSTDeviceState *s, unsigned index) { uint8_t *rc = NULL; -- 1.8.3.1