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envelope-from=eric.devolder@oracle.com; helo=mx0b-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_H2=-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+incoming=patchwork.ozlabs.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 Reviewed-by: Ani Sinha --- hw/acpi/erst.c | 225 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 225 insertions(+) diff --git a/hw/acpi/erst.c b/hw/acpi/erst.c index fe9ba51..5d5a639 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 +193,210 @@ typedef struct { /*******************************************************************/ /*******************************************************************/ +typedef struct { + GArray *table_data; + pcibus_t bar; + uint8_t instruction; + uint8_t flags; + uint8_t register_bit_width; + pcibus_t register_offset; +} BuildSerializationInstructionEntry; + +/* ACPI 4.0: 17.4.1.2 Serialization Instruction Entries */ +static void build_serialization_instruction( + BuildSerializationInstructionEntry *e, + uint8_t serialization_action, + uint64_t value) +{ + /* ACPI 4.0: Table 17-18 Serialization Instruction Entry */ + struct AcpiGenericAddress gas; + uint64_t mask; + + /* Serialization Action */ + build_append_int_noprefix(e->table_data, serialization_action, 1); + /* Instruction */ + build_append_int_noprefix(e->table_data, e->instruction, 1); + /* Flags */ + build_append_int_noprefix(e->table_data, e->flags, 1); + /* Reserved */ + build_append_int_noprefix(e->table_data, 0, 1); + /* Register Region */ + gas.space_id = AML_SYSTEM_MEMORY; + gas.bit_width = e->register_bit_width; + gas.bit_offset = 0; + gas.access_width = ctz32(e->register_bit_width) - 2; + gas.address = (uint64_t)(e->bar + e->register_offset); + build_append_gas_from_struct(e->table_data, &gas); + /* Value */ + build_append_int_noprefix(e->table_data, value, 8); + /* Mask */ + mask = (1ULL << (e->register_bit_width - 1) << 1) - 1; + build_append_int_noprefix(e->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) +{ + /* + * 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. + */ + GArray *table_instruction_data = g_array_new(FALSE, FALSE, sizeof(char)); + 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 }; + /* Contexts for the different ways ACTION and VALUE are accessed */ + BuildSerializationInstructionEntry rd_value_32_val = { + .table_data = table_instruction_data, + .bar = bar0, + .instruction = INST_READ_REGISTER_VALUE, + .flags = 0, + .register_bit_width = 32, + .register_offset = ERST_VALUE_OFFSET, + }; + BuildSerializationInstructionEntry rd_value_32 = { + .table_data = table_instruction_data, + .bar = bar0, + .instruction = INST_READ_REGISTER, + .flags = 0, + .register_bit_width = 32, + .register_offset = ERST_VALUE_OFFSET, + }; + BuildSerializationInstructionEntry rd_value_64 = { + .table_data = table_instruction_data, + .bar = bar0, + .instruction = INST_READ_REGISTER, + .flags = 0, + .register_bit_width = 64, + .register_offset = ERST_VALUE_OFFSET, + }; + BuildSerializationInstructionEntry wr_value_32_val = { + .table_data = table_instruction_data, + .bar = bar0, + .instruction = INST_WRITE_REGISTER_VALUE, + .flags = 0, + .register_bit_width = 32, + .register_offset = ERST_VALUE_OFFSET, + }; + BuildSerializationInstructionEntry wr_value_32 = { + .table_data = table_instruction_data, + .bar = bar0, + .instruction = INST_WRITE_REGISTER, + .flags = 0, + .register_bit_width = 32, + .register_offset = ERST_VALUE_OFFSET, + }; + BuildSerializationInstructionEntry wr_value_64 = { + .table_data = table_instruction_data, + .bar = bar0, + .instruction = INST_WRITE_REGISTER, + .flags = 0, + .register_bit_width = 64, + .register_offset = ERST_VALUE_OFFSET, + }; + BuildSerializationInstructionEntry wr_action = { + .table_data = table_instruction_data, + .bar = bar0, + .instruction = INST_WRITE_REGISTER_VALUE, + .flags = 0, + .register_bit_width = 32, + .register_offset = ERST_ACTION_OFFSET, + }; + unsigned action; + + trace_acpi_erst_pci_bar_0(bar0); + + /* Serialization Instruction Entries */ + action = ACTION_BEGIN_WRITE_OPERATION; + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_BEGIN_READ_OPERATION; + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_BEGIN_CLEAR_OPERATION; + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_END_OPERATION; + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_SET_RECORD_OFFSET; + build_serialization_instruction(&wr_value_32, action, 0); + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_EXECUTE_OPERATION; + build_serialization_instruction(&wr_value_32_val, action, + ERST_EXECUTE_OPERATION_MAGIC); + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_CHECK_BUSY_STATUS; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_32_val, action, 0x01); + + action = ACTION_GET_COMMAND_STATUS; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_32, action, 0); + + action = ACTION_GET_RECORD_IDENTIFIER; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_64, action, 0); + + action = ACTION_SET_RECORD_IDENTIFIER; + build_serialization_instruction(&wr_value_64, action, 0); + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_GET_RECORD_COUNT; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_32, action, 0); + + action = ACTION_BEGIN_DUMMY_WRITE_OPERATION; + build_serialization_instruction(&wr_action, action, action); + + action = ACTION_GET_ERROR_LOG_ADDRESS_RANGE; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_64, action, 0); + + action = ACTION_GET_ERROR_LOG_ADDRESS_LENGTH; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_64, action, 0); + + action = ACTION_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_32, action, 0); + + action = ACTION_GET_EXECUTE_OPERATION_TIMINGS; + build_serialization_instruction(&wr_action, action, action); + build_serialization_instruction(&rd_value_64, action, 0); + + /* 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;