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charset="utf-8" Following the guidelines in tests/qtest/bios-tables-test.c, this change adds empty placeholder files per step 1 for the new ERST table, and excludes resulting changed files in bios-tables-test-allowed-dif= f.h per step 2. Signed-off-by: Eric DeVolder Suggested-by: Konrad Wilk --- tests/data/acpi/microvm/ERST | 0 tests/data/acpi/pc/ERST | 0 tests/data/acpi/q35/ERST | 0 tests/qtest/bios-tables-test-allowed-diff.h | 4 ++++ 4 files changed, 4 insertions(+) create mode 100644 tests/data/acpi/microvm/ERST create mode 100644 tests/data/acpi/pc/ERST create mode 100644 tests/data/acpi/q35/ERST diff --git a/tests/data/acpi/microvm/ERST b/tests/data/acpi/microvm/ERST new file mode 100644 index 0000000..e69de29 diff --git a/tests/data/acpi/pc/ERST b/tests/data/acpi/pc/ERST new file mode 100644 index 0000000..e69de29 diff --git a/tests/data/acpi/q35/ERST b/tests/data/acpi/q35/ERST new file mode 100644 index 0000000..e69de29 diff --git a/tests/qtest/bios-tables-test-allowed-diff.h b/tests/qtest/bios= -tables-test-allowed-diff.h index dfb8523..e004c71 100644 --- a/tests/qtest/bios-tables-test-allowed-diff.h +++ b/tests/qtest/bios-tables-test-allowed-diff.h @@ -1 +1,5 @@ /* List of comma-separated changed AML files to ignore */ +"tests/data/acpi/pc/ERST", +"tests/data/acpi/q35/ERST", +"tests/data/acpi/microvm/ERST", + --=20 1.8.3.1 From nobody Sat May 4 16:13:42 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; 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charset="utf-8" This change introduces the defintions for ACPI ERST. Signed-off-by: Eric DeVolder Suggested-by: Konrad Wilk --- include/hw/acpi/erst.h | 82 ++++++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 82 insertions(+) create mode 100644 include/hw/acpi/erst.h diff --git a/include/hw/acpi/erst.h b/include/hw/acpi/erst.h new file mode 100644 index 0000000..8a8ac5c --- /dev/null +++ b/include/hw/acpi/erst.h @@ -0,0 +1,82 @@ +/* + * ACPI Error Record Serialization Table, ERST, Implementation + * + * Copyright (c) 2020 Oracle and/or its affiliates. + * + * See ACPI specification, "ACPI Platform Error Interfaces" + * "Error Serialization" + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2 of the License. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + */ +#ifndef HW_ACPI_ERST_H +#define HW_ACPI_ERST_H + +void build_erst(GArray *table_data, BIOSLinker *linker, + const char *oem_id, const char *oem_table_id); +void setup_erst_dev(hwaddr base, Error *error_fatal); + +#define TYPE_ACPI_ERST "acpi-erst" +#define ACPI_ERST_BASE_PROP "base" +#define ACPI_ERST_SIZE_PROP "size" +#define ACPI_ERST_FILE_PROP "file" + +#define ACPI_ERST_ACTION_BEGIN_WRITE_OPERATION 0x0 +#define ACPI_ERST_ACTION_BEGIN_READ_OPERATION 0x1 +#define ACPI_ERST_ACTION_BEGIN_CLEAR_OPERATION 0x2 +#define ACPI_ERST_ACTION_END_OPERATION 0x3 +#define ACPI_ERST_ACTION_SET_RECORD_OFFSET 0x4 +#define ACPI_ERST_ACTION_EXECUTE_OPERATION 0x5 +#define ACPI_ERST_ACTION_CHECK_BUSY_STATUS 0x6 +#define ACPI_ERST_ACTION_GET_COMMAND_STATUS 0x7 +#define ACPI_ERST_ACTION_GET_RECORD_IDENTIFIER 0x8 +#define ACPI_ERST_ACTION_SET_RECORD_IDENTIFIER 0x9 +#define ACPI_ERST_ACTION_GET_RECORD_COUNT 0xA +#define ACPI_ERST_ACTION_BEGIN_DUMMY_WRITE_OPERATION 0xB +#define ACPI_ERST_ACTION_RESERVED 0xC +#define ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_RANGE 0xD +#define ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_LENGTH 0xE +#define ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES 0xF +#define ACPI_ERST_ACTION_GET_EXECUTE_OPERATION_TIMINGS 0x10 +#define ACPI_ERST_MAX_ACTIONS \ + (ACPI_ERST_ACTION_GET_EXECUTE_OPERATION_TIMINGS + 1) + +#define ACPI_ERST_STATUS_SUCCESS 0x00 +#define ACPI_ERST_STATUS_NOT_ENOUGH_SPACE 0x01 +#define ACPI_ERST_STATUS_HARDWARE_NOT_AVAILABLE 0x02 +#define ACPI_ERST_STATUS_FAILED 0x03 +#define ACPI_ERST_STATUS_RECORD_STORE_EMPTY 0x04 +#define ACPI_ERST_STATUS_RECORD_NOT_FOUND 0x05 + +#define ACPI_ERST_INST_READ_REGISTER 0x00 +#define ACPI_ERST_INST_READ_REGISTER_VALUE 0x01 +#define ACPI_ERST_INST_WRITE_REGISTER 0x02 +#define ACPI_ERST_INST_WRITE_REGISTER_VALUE 0x03 +#define ACPI_ERST_INST_NOOP 0x04 +#define ACPI_ERST_INST_LOAD_VAR1 0x05 +#define ACPI_ERST_INST_LOAD_VAR2 0x06 +#define ACPI_ERST_INST_STORE_VAR1 0x07 +#define ACPI_ERST_INST_ADD 0x08 +#define ACPI_ERST_INST_SUBTRACT 0x09 +#define ACPI_ERST_INST_ADD_VALUE 0x0A +#define ACPI_ERST_INST_SUBTRACT_VALUE 0x0B +#define ACPI_ERST_INST_STALL 0x0C +#define ACPI_ERST_INST_STALL_WHILE_TRUE 0x0D +#define ACPI_ERST_INST_SKIP_NEXT_INSTRUCTION_IF_TRUE 0x0E +#define ACPI_ERST_INST_GOTO 0x0F +#define ACPI_ERST_INST_SET_SRC_ADDRESS_BASE 0x10 +#define ACPI_ERST_INST_SET_DST_ADDRESS_BASE 0x11 +#define ACPI_ERST_INST_MOVE_DATA 0x12 + +#endif + --=20 1.8.3.1 From nobody Sat May 4 16:13:42 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; 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charset="utf-8" This change implements the support for the ACPI ERST feature[1,2]. The size of the ACPI ERST storage is declared via the QEMU global parameter acpi-erst.size. The size can range from 64KiB to to 64MiB. The default is 64KiB. The location of the ACPI ERST storage backing file is declared via the QEMU global parameter acpi-erst.file. The default is acpi-erst.backing. [1] "Advanced Configuration and Power Interface Specification", version 6.2, May 2017. https://www.uefi.org/sites/default/files/resources/ACPI_6_2.pdf [2] "Unified Extensible Firmware Interface Specification", version 2.8, March 2019. https://uefi.org/sites/default/files/resources/UEFI_Spec_2_8_final.pdf Signed-off-by: Eric DeVolder Suggested-by: Konrad Wilk --- hw/acpi/erst.c | 902 +++++++++++++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 902 insertions(+) create mode 100644 hw/acpi/erst.c diff --git a/hw/acpi/erst.c b/hw/acpi/erst.c new file mode 100644 index 0000000..645a904 --- /dev/null +++ b/hw/acpi/erst.c @@ -0,0 +1,902 @@ +/* + * ACPI Error Record Serialization Table, ERST, Implementation + * + * Copyright (c) 2021 Oracle and/or its affiliates. + * + * See ACPI specification, + * "ACPI Platform Error Interfaces" : "Error Serialization" + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2 of the License. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see + */ + +#include +#include +#include + +#include "qemu/osdep.h" +#include "qapi/error.h" +#include "hw/sysbus.h" +#include "qom/object_interfaces.h" +#include "qemu/error-report.h" +#include "migration/vmstate.h" +#include "hw/qdev-properties.h" +#include "hw/acpi/acpi.h" +#include "hw/acpi/acpi-defs.h" +#include "hw/acpi/aml-build.h" +#include "hw/acpi/bios-linker-loader.h" +#include "exec/address-spaces.h" +#include "sysemu/hostmem.h" +#include "hw/acpi/erst.h" + +#ifdef _ERST_DEBUG +#define erst_debug(fmt, ...) \ + do { fprintf(stderr, fmt, ## __VA_ARGS__); fflush(stderr); } while (0) +#else +#define erst_debug(fmt, ...) do { } while (0) +#endif + +/* See UEFI spec, Appendix N Common Platform Error Record */ +/* UEFI CPER allows for an OSPM book keeping area in the record */ +#define UEFI_CPER_RECORD_MIN_SIZE 128U +#define UEFI_CPER_SIZE_OFFSET 20U +#define UEFI_CPER_RECORD_ID_OFFSET 96U +#define IS_UEFI_CPER_RECORD(ptr) \ + (((ptr)[0] =3D=3D 'C') && \ + ((ptr)[1] =3D=3D 'P') && \ + ((ptr)[2] =3D=3D 'E') && \ + ((ptr)[3] =3D=3D 'R')) +#define THE_UEFI_CPER_RECORD_ID(ptr) \ + (*(uint64_t *)(&(ptr)[UEFI_CPER_RECORD_ID_OFFSET])) + +#define ERST_INVALID_RECORD_ID (~0UL) +#define ERST_EXECUTE_OPERATION_MAGIC 0x9CUL +#define ERST_CSR_ACTION (0UL << 3) /* action (cmd) */ +#define ERST_CSR_VALUE (1UL << 3) /* argument/value (data) */ + +/* + * As ERST_IOMEM_SIZE is used to map the ERST into the guest, + * it should/must be an integer multiple of PAGE_SIZE. + * NOTE that any change to this value will make any pre- + * existing backing files, not of the same ERST_IOMEM_SIZE, + * unusable to the guest. + */ +#define ERST_IOMEM_SIZE (2UL * 4096) + +/* + * This implementation is an ACTION (cmd) and VALUE (data) + * interface consisting of just two 64-bit registers. + */ +#define ERST_REG_LEN (2UL * sizeof(uint64_t)) + +/* + * The space not utilized by the register interface is the + * buffer for exchanging ERST record contents. + */ +#define ERST_RECORD_SIZE (ERST_IOMEM_SIZE - ERST_REG_LEN) + +/* + * Mode to be used for backing file + */ +#define ACPIERST(obj) \ + OBJECT_CHECK(ERSTDeviceState, (obj), TYPE_ACPI_ERST) +#define ACPIERST_CLASS(oc) \ + OBJECT_CLASS_CHECK(ERSTDeviceStateClass, (oc), TYPE_ACPI_ERST) +#define ACPIERST_GET_CLASS(obj) \ + OBJECT_GET_CLASS(ERSTDeviceStateClass, (obj), TYPE_ACPI_ERST) + +typedef struct { + SysBusDevice parent_obj; + Object *hostmem_obj; + HostMemoryBackend *hostmem; + + MemoryRegion iomem; + uint32_t prop_size; + hwaddr prop_base; + char *prop_path; + + uint8_t operation; + uint8_t busy_status; + uint8_t command_status; + uint32_t record_offset; + uint32_t record_count; + uint64_t reg_action; + uint64_t reg_value; + uint64_t record_identifier; + + unsigned next_record_index; + uint8_t record[ERST_RECORD_SIZE]; /* read/written directly by guest */ + uint8_t tmp_record[ERST_RECORD_SIZE]; /* intermediate manipulation buf= fer */ + +} ERSTDeviceState; + +static unsigned copy_from_nvram_by_index(ERSTDeviceState *s, unsigned inde= x) +{ + /* Read an nvram entry into tmp_record */ + unsigned rc =3D ACPI_ERST_STATUS_FAILED; + off_t offset =3D (index * ERST_RECORD_SIZE); + + if ((offset + ERST_RECORD_SIZE) <=3D s->prop_size) { + MemoryRegion *mr; + mr =3D host_memory_backend_get_memory(s->hostmem); + if (mr) { + uint8_t *p =3D (uint8_t *)memory_region_get_ram_ptr(mr); + memcpy(s->tmp_record, p + offset, ERST_RECORD_SIZE); + rc =3D ACPI_ERST_STATUS_SUCCESS; + } + } + return rc; +} + +static unsigned copy_to_nvram_by_index(ERSTDeviceState *s, unsigned index) +{ + /* Write entry in tmp_record into nvram, and backing file */ + unsigned rc =3D ACPI_ERST_STATUS_FAILED; + off_t offset =3D (index * ERST_RECORD_SIZE); + + if ((offset + ERST_RECORD_SIZE) <=3D s->prop_size) { + MemoryRegion *mr; + mr =3D host_memory_backend_get_memory(s->hostmem); + if (mr) { + uint8_t *p =3D (uint8_t *)memory_region_get_ram_ptr(mr); + memcpy(p + offset, s->tmp_record, ERST_RECORD_SIZE); + rc =3D ACPI_ERST_STATUS_SUCCESS; + } + } + return rc; +} + +static int lookup_erst_record_by_identifier(ERSTDeviceState *s, + uint64_t record_identifier, bool *record_found, bool alloc_for_write) +{ + int rc =3D -1; + int empty_index =3D -1; + int index =3D 0; + unsigned rrc; + + *record_found =3D 0; + + do { + rrc =3D copy_from_nvram_by_index(s, (unsigned)index); + if (rrc =3D=3D ACPI_ERST_STATUS_SUCCESS) { + uint64_t this_identifier; + this_identifier =3D THE_UEFI_CPER_RECORD_ID(s->tmp_record); + if (IS_UEFI_CPER_RECORD(s->tmp_record) && + (this_identifier =3D=3D record_identifier)) { + rc =3D index; + *record_found =3D 1; + break; + } + if ((this_identifier =3D=3D ERST_INVALID_RECORD_ID) && + (empty_index < 0)) { + empty_index =3D index; /* first available for write */ + } + } + ++index; + } while (rrc =3D=3D ACPI_ERST_STATUS_SUCCESS); + + /* Record not found, allocate for writing */ + if ((rc < 0) && alloc_for_write) { + rc =3D empty_index; + } + + return rc; +} + +static unsigned clear_erst_record(ERSTDeviceState *s) +{ + unsigned rc =3D ACPI_ERST_STATUS_RECORD_NOT_FOUND; + bool record_found; + int index; + + index =3D lookup_erst_record_by_identifier(s, + s->record_identifier, &record_found, 0); + if (record_found) { + memset(s->tmp_record, 0xFF, ERST_RECORD_SIZE); + rc =3D copy_to_nvram_by_index(s, (unsigned)index); + if (rc =3D=3D ACPI_ERST_STATUS_SUCCESS) { + s->record_count -=3D 1; + } + } + + return rc; +} + +static unsigned write_erst_record(ERSTDeviceState *s) +{ + unsigned rc =3D ACPI_ERST_STATUS_FAILED; + + if (s->record_offset < (ERST_RECORD_SIZE - UEFI_CPER_RECORD_MIN_SIZE))= { + uint64_t record_identifier; + uint8_t *record =3D &s->record[s->record_offset]; + bool record_found; + int index; + + record_identifier =3D (s->record_identifier =3D=3D ERST_INVALID_RE= CORD_ID) + ? THE_UEFI_CPER_RECORD_ID(record) : s->record_identifier; + + index =3D lookup_erst_record_by_identifier(s, + record_identifier, &record_found, 1); + if (index < 0) { + rc =3D ACPI_ERST_STATUS_NOT_ENOUGH_SPACE; + } else { + if (0 !=3D s->record_offset) { + memset(&s->tmp_record[ERST_RECORD_SIZE - s->record_offset], + 0xFF, s->record_offset); + } + memcpy(s->tmp_record, record, ERST_RECORD_SIZE - s->record_off= set); + rc =3D copy_to_nvram_by_index(s, (unsigned)index); + if (rc =3D=3D ACPI_ERST_STATUS_SUCCESS) { + if (!record_found) { /* not overwriting existing record */ + s->record_count +=3D 1; /* writing new record */ + } + } + } + } + + return rc; +} + +static unsigned next_erst_record(ERSTDeviceState *s, + uint64_t *record_identifier) +{ + unsigned rc =3D ACPI_ERST_STATUS_RECORD_NOT_FOUND; + unsigned index; + unsigned rrc; + + *record_identifier =3D ERST_INVALID_RECORD_ID; + + index =3D s->next_record_index; + do { + rrc =3D copy_from_nvram_by_index(s, (unsigned)index); + if (rrc =3D=3D ACPI_ERST_STATUS_SUCCESS) { + if (IS_UEFI_CPER_RECORD(s->tmp_record)) { + s->next_record_index =3D index + 1; /* where to start next= time */ + *record_identifier =3D THE_UEFI_CPER_RECORD_ID(s->tmp_reco= rd); + rc =3D ACPI_ERST_STATUS_SUCCESS; + break; + } + ++index; + } else { + if (s->next_record_index =3D=3D 0) { + rc =3D ACPI_ERST_STATUS_RECORD_STORE_EMPTY; + } + s->next_record_index =3D 0; /* at end, reset */ + } + } while (rrc =3D=3D ACPI_ERST_STATUS_SUCCESS); + + return rc; +} + +static unsigned read_erst_record(ERSTDeviceState *s) +{ + unsigned rc =3D ACPI_ERST_STATUS_RECORD_NOT_FOUND; + bool record_found; + int index; + + index =3D lookup_erst_record_by_identifier(s, + s->record_identifier, &record_found, 0); + if (record_found) { + rc =3D copy_from_nvram_by_index(s, (unsigned)index); + if (rc =3D=3D ACPI_ERST_STATUS_SUCCESS) { + if (s->record_offset < ERST_RECORD_SIZE) { + memcpy(&s->record[s->record_offset], s->tmp_record, + ERST_RECORD_SIZE - s->record_offset); + } + } + } + + return rc; +} + +static unsigned get_erst_record_count(ERSTDeviceState *s) +{ + /* Compute record_count */ + unsigned index =3D 0; + + s->record_count =3D 0; + while (copy_from_nvram_by_index(s, index) =3D=3D ACPI_ERST_STATUS_SUCC= ESS) { + uint8_t *ptr =3D &s->tmp_record[0]; + uint64_t record_identifier =3D THE_UEFI_CPER_RECORD_ID(ptr); + if (IS_UEFI_CPER_RECORD(ptr) && + (ERST_INVALID_RECORD_ID !=3D record_identifier)) { + s->record_count +=3D 1; + } + ++index; + } + return s->record_count; +} + +static uint64_t erst_rd_reg64(hwaddr addr, + uint64_t reg, unsigned size) +{ + uint64_t rdval; + uint64_t mask; + unsigned shift; + + if (size =3D=3D sizeof(uint64_t)) { + /* 64b access */ + mask =3D 0xFFFFFFFFFFFFFFFFUL; + shift =3D 0; + } else { + /* 32b access */ + mask =3D 0x00000000FFFFFFFFUL; + shift =3D ((addr & 0x4) =3D=3D 0x4) ? 32 : 0; + } + + rdval =3D reg; + rdval >>=3D shift; + rdval &=3D mask; + + return rdval; +} + +static uint64_t erst_wr_reg64(hwaddr addr, + uint64_t reg, uint64_t val, unsigned size) +{ + uint64_t wrval; + uint64_t mask; + unsigned shift; + + if (size =3D=3D sizeof(uint64_t)) { + /* 64b access */ + mask =3D 0xFFFFFFFFFFFFFFFFUL; + shift =3D 0; + } else { + /* 32b access */ + mask =3D 0x00000000FFFFFFFFUL; + shift =3D ((addr & 0x4) =3D=3D 0x4) ? 32 : 0; + } + + val &=3D mask; + val <<=3D shift; + mask <<=3D shift; + wrval =3D reg; + wrval &=3D ~mask; + wrval |=3D val; + + return wrval; +} + +static void erst_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + ERSTDeviceState *s =3D (ERSTDeviceState *)opaque; + + if (addr < ERST_REG_LEN) { + /* + * NOTE: All actions/operations/side effects happen on the WRITE, + * by design. The READs simply return the reg_value contents. + */ + erst_debug("ERST write %016lx: val %016lx sz %u\n", addr, val, siz= e); + /* The REGISTER region */ + switch (addr) { + case ERST_CSR_VALUE + 0: + case ERST_CSR_VALUE + 4: + s->reg_value =3D erst_wr_reg64(addr, s->reg_value, val, size); + break; + case ERST_CSR_ACTION + 0: +/* case ERST_CSR_ACTION+4: as coded, not really a 64b register */ + switch (val) { + case ACPI_ERST_ACTION_BEGIN_WRITE_OPERATION: + case ACPI_ERST_ACTION_BEGIN_READ_OPERATION: + case ACPI_ERST_ACTION_BEGIN_CLEAR_OPERATION: + case ACPI_ERST_ACTION_BEGIN_DUMMY_WRITE_OPERATION: + case ACPI_ERST_ACTION_END_OPERATION: + s->operation =3D val; + break; + case ACPI_ERST_ACTION_SET_RECORD_OFFSET: + s->record_offset =3D s->reg_value; + break; + case ACPI_ERST_ACTION_EXECUTE_OPERATION: + if ((uint8_t)s->reg_value =3D=3D ERST_EXECUTE_OPERATION_MA= GIC) { + s->busy_status =3D 1; + switch (s->operation) { + case ACPI_ERST_ACTION_BEGIN_WRITE_OPERATION: + s->command_status =3D write_erst_record(s); + break; + case ACPI_ERST_ACTION_BEGIN_READ_OPERATION: + s->command_status =3D read_erst_record(s); + break; + case ACPI_ERST_ACTION_BEGIN_CLEAR_OPERATION: + s->command_status =3D clear_erst_record(s); + break; + case ACPI_ERST_ACTION_BEGIN_DUMMY_WRITE_OPERATION: + s->command_status =3D ACPI_ERST_STATUS_SUCCESS; + break; + case ACPI_ERST_ACTION_END_OPERATION: + s->command_status =3D ACPI_ERST_STATUS_SUCCESS; + break; + default: + s->command_status =3D ACPI_ERST_STATUS_FAILED; + break; + } + s->record_identifier =3D ERST_INVALID_RECORD_ID; + s->busy_status =3D 0; + } + break; + case ACPI_ERST_ACTION_CHECK_BUSY_STATUS: + s->reg_value =3D s->busy_status; + break; + case ACPI_ERST_ACTION_GET_COMMAND_STATUS: + s->reg_value =3D s->command_status; + break; + case ACPI_ERST_ACTION_GET_RECORD_IDENTIFIER: + s->command_status =3D next_erst_record(s, &s->reg_value); + break; + case ACPI_ERST_ACTION_SET_RECORD_IDENTIFIER: + s->record_identifier =3D s->reg_value; + break; + case ACPI_ERST_ACTION_GET_RECORD_COUNT: + s->reg_value =3D s->record_count; + break; + case ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_RANGE: + s->reg_value =3D s->prop_base + ERST_REG_LEN; + break; + case ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_LENGTH: + s->reg_value =3D ERST_RECORD_SIZE; + break; + case ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES: + s->reg_value =3D 0; /* correct/intended value */ + break; + case ACPI_ERST_ACTION_GET_EXECUTE_OPERATION_TIMINGS: + /* + * 100UL is max, 10UL is nominal + */ + s->reg_value =3D ((100UL << 32) | (10UL << 0)); + break; + case ACPI_ERST_ACTION_RESERVED: + default: + /* + * NOP + */ + break; + } + break; + default: + /* + * All other register writes are NO-OPs + */ + break; + } + } else { + /* The RECORD region */ + unsigned offset =3D addr - ERST_REG_LEN; + uint8_t *ptr =3D &s->record[offset]; + switch (size) { + default: + case sizeof(uint8_t): + *(uint8_t *)ptr =3D (uint8_t)val; + break; + case sizeof(uint16_t): + *(uint16_t *)ptr =3D (uint16_t)val; + break; + case sizeof(uint32_t): + *(uint32_t *)ptr =3D (uint32_t)val; + break; + case sizeof(uint64_t): + *(uint64_t *)ptr =3D (uint64_t)val; + break; + } + } +} + +static uint64_t erst_read(void *opaque, hwaddr addr, + unsigned size) +{ + ERSTDeviceState *s =3D (ERSTDeviceState *)opaque; + uint64_t val =3D 0; + + if (addr < ERST_REG_LEN) { + switch (addr) { + case ERST_CSR_ACTION + 0: + case ERST_CSR_ACTION + 4: + val =3D erst_rd_reg64(addr, s->reg_action, size); + break; + case ERST_CSR_VALUE + 0: + case ERST_CSR_VALUE + 4: + val =3D erst_rd_reg64(addr, s->reg_value, size); + break; + default: + break; + } + } else { + /* + * The RECORD region + */ + uint8_t *ptr =3D &s->record[addr - ERST_REG_LEN]; + switch (size) { + default: + case sizeof(uint8_t): + val =3D *(uint8_t *)ptr; + break; + case sizeof(uint16_t): + val =3D *(uint16_t *)ptr; + break; + case sizeof(uint32_t): + val =3D *(uint32_t *)ptr; + break; + case sizeof(uint64_t): + val =3D *(uint64_t *)ptr; + break; + } + } + erst_debug("ERST read %016lx: val %016lx sz %u\n", addr, val, size); + return val; +} + +static size_t build_erst_action(GArray *table_data, + uint8_t serialization_action, + uint8_t instruction, + uint8_t flags, + uint8_t width, + uint64_t address, + uint64_t value, + uint64_t mask) +{ + /* See ACPI spec, Error Serialization */ + uint8_t access_width =3D 0; + build_append_int_noprefix(table_data, serialization_action, 1); + build_append_int_noprefix(table_data, instruction , 1); + build_append_int_noprefix(table_data, flags , 1); + build_append_int_noprefix(table_data, 0 , 1); + /* GAS space_id */ + build_append_int_noprefix(table_data, AML_SYSTEM_MEMORY , 1); + /* GAS bit_width */ + build_append_int_noprefix(table_data, width , 1); + /* GAS bit_offset */ + build_append_int_noprefix(table_data, 0 , 1); + /* GAS access_width */ + switch (width) { + case 8: + access_width =3D 1; + break; + case 16: + access_width =3D 2; + break; + case 32: + access_width =3D 3; + break; + case 64: + access_width =3D 4; + break; + default: + access_width =3D 0; + break; + } + build_append_int_noprefix(table_data, access_width , 1); + /* GAS address */ + build_append_int_noprefix(table_data, address, 8); + /* value */ + build_append_int_noprefix(table_data, value , 8); + /* mask */ + build_append_int_noprefix(table_data, mask , 8); + + return 1; +} + +static const MemoryRegionOps erst_rw_ops =3D { + .read =3D erst_read, + .write =3D erst_write, + .endianness =3D DEVICE_NATIVE_ENDIAN, +}; + +void build_erst(GArray *table_data, BIOSLinker *linker, + const char *oem_id, const char *oem_table_id) +{ + unsigned action, insns =3D 0; + unsigned erst_start =3D table_data->len; + unsigned iec_offset =3D 0; + Object *obj; + hwaddr base =3D 0x0UL; + + obj =3D object_resolve_path_type("", TYPE_ACPI_ERST, NULL); + if (obj) { + base =3D ACPIERST(obj)->prop_base; + } + + /* See ACPI spec, Error Serialization */ + acpi_data_push(table_data, sizeof(AcpiTableHeader)); + /* serialization_header_length */ + build_append_int_noprefix(table_data, 48, 4); + /* reserved */ + build_append_int_noprefix(table_data, 0, 4); + iec_offset =3D table_data->len; + /* instruction_entry_count (placeholder) */ + build_append_int_noprefix(table_data, 0, 4); + +#define BEA(I, F, W, ADDR, VAL, MASK) \ + build_erst_action(table_data, action, \ + ACPI_ERST_INST_##I, F, W, base + ADDR, VAL, MASK) +#define MASK8 0x00000000000000FFUL +#define MASK16 0x000000000000FFFFUL +#define MASK32 0x00000000FFFFFFFFUL +#define MASK64 0xFFFFFFFFFFFFFFFFUL + + for (action =3D 0; action < ACPI_ERST_MAX_ACTIONS; ++action) { + switch (action) { + case ACPI_ERST_ACTION_BEGIN_WRITE_OPERATION: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_BEGIN_READ_OPERATION: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_BEGIN_CLEAR_OPERATION: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_END_OPERATION: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_SET_RECORD_OFFSET: + insns +=3D BEA(WRITE_REGISTER , 0, 32, + ERST_CSR_VALUE , 0, MASK32); + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_EXECUTE_OPERATION: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_VALUE , ERST_EXECUTE_OPERATION_MAGIC, MASK8); + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_CHECK_BUSY_STATUS: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER_VALUE , 0, 32, + ERST_CSR_VALUE, 0x01, MASK8); + break; + case ACPI_ERST_ACTION_GET_COMMAND_STATUS: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER , 0, 32, + ERST_CSR_VALUE, 0, MASK8); + break; + case ACPI_ERST_ACTION_GET_RECORD_IDENTIFIER: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER , 0, 64, + ERST_CSR_VALUE, 0, MASK64); + break; + case ACPI_ERST_ACTION_SET_RECORD_IDENTIFIER: + insns +=3D BEA(WRITE_REGISTER , 0, 64, + ERST_CSR_VALUE , 0, MASK64); + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_GET_RECORD_COUNT: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER , 0, 32, + ERST_CSR_VALUE, 0, MASK32); + break; + case ACPI_ERST_ACTION_BEGIN_DUMMY_WRITE_OPERATION: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_RESERVED: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + break; + case ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_RANGE: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER , 0, 64, + ERST_CSR_VALUE, 0, MASK64); + break; + case ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_LENGTH: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER , 0, 64, + ERST_CSR_VALUE, 0, MASK32); + break; + case ACPI_ERST_ACTION_GET_ERROR_LOG_ADDRESS_RANGE_ATTRIBUTES: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER , 0, 32, + ERST_CSR_VALUE, 0, MASK32); + break; + case ACPI_ERST_ACTION_GET_EXECUTE_OPERATION_TIMINGS: + insns +=3D BEA(WRITE_REGISTER_VALUE, 0, 32, + ERST_CSR_ACTION, action, MASK8); + insns +=3D BEA(READ_REGISTER , 0, 64, + ERST_CSR_VALUE, 0, MASK64); + default: + insns +=3D BEA(NOOP, 0, 0, 0, action, 0); + break; + } + } + + /* acpi_data_push() within BEA() can result in new GArray pointer */ + *(uint32_t *)(table_data->data + iec_offset) =3D cpu_to_le32(insns); + + build_header(linker, table_data, + (void *)(table_data->data + erst_start), + "ERST", table_data->len - erst_start, + 1, oem_id, oem_table_id); +} + +/*******************************************************************/ +/*******************************************************************/ +static int erst_post_load(void *opaque, int version_id) +{ + /*ERSTDeviceState *s =3D opaque;*/ + erst_debug("+erst_post_load(%d)\n", version_id); + /* Ensure nvram persists into backing file */ + erst_debug("-erst_post_load()\n"); + return 0; +} + +static const VMStateDescription erst_vmstate =3D { + .name =3D "acpi-erst", + .version_id =3D 1, + .minimum_version_id =3D 1, + .post_load =3D erst_post_load, + .fields =3D (VMStateField[]) { + VMSTATE_UINT8(operation, ERSTDeviceState), + VMSTATE_UINT8(busy_status, ERSTDeviceState), + VMSTATE_UINT8(command_status, ERSTDeviceState), + VMSTATE_UINT32(record_offset, ERSTDeviceState), + VMSTATE_UINT32(record_count, ERSTDeviceState), + VMSTATE_UINT64(reg_action, ERSTDeviceState), + VMSTATE_UINT64(reg_value, ERSTDeviceState), + VMSTATE_UINT64(record_identifier, ERSTDeviceState), + VMSTATE_UINT8_ARRAY(record, ERSTDeviceState, ERST_RECORD_SIZE), + VMSTATE_UINT8_ARRAY(tmp_record, ERSTDeviceState, ERST_RECORD_SIZE), + VMSTATE_END_OF_LIST() + } +}; + +static void erst_realizefn(DeviceState *dev, Error **errp) +{ + SysBusDevice *d =3D SYS_BUS_DEVICE(dev); + ERSTDeviceState *s =3D ACPIERST(dev); + unsigned index =3D 0; + + erst_debug("+erst_realizefn()\n"); + + if (!(s->prop_size > ERST_RECORD_SIZE) && + (s->prop_size <=3D 0x04000000)) { + error_setg(errp, "'size' property %d is not set properly", + s->prop_size); + return; + } + + if (!s->prop_path) { + s->prop_path =3D (char *)(TYPE_ACPI_ERST ".backing"); + } + + s->hostmem =3D NULL; + s->hostmem_obj =3D object_new(TYPE_MEMORY_BACKEND_FILE); + object_property_set_str(s->hostmem_obj, "mem-path", s->prop_path, &err= or_fatal); + object_property_set_bool(s->hostmem_obj, "share", true, &error_fatal); + + /* MemoryBackend upsizes to a PAGE_SIZE multiple for prop_size */ + object_property_set_int(s->hostmem_obj, "size", s->prop_size, &error_f= atal); + user_creatable_complete(USER_CREATABLE(s->hostmem_obj), &error_fatal); + s->hostmem =3D MEMORY_BACKEND(s->hostmem_obj); + + /* Convert prop_size to integer multiple of ERST_RECORD_SIZE */ + s->prop_size -=3D (s->prop_size % ERST_RECORD_SIZE); + + /* + * MemoryBackend initializes contents to zero, but we actually + * want contents initialized to 0xFF. + */ + if (copy_from_nvram_by_index(s, 0) =3D=3D ACPI_ERST_STATUS_SUCCESS) { + if (s->tmp_record[0] =3D=3D 0x00) { + memset(s->tmp_record, 0xFF, ERST_RECORD_SIZE); + index =3D 0; + while (copy_to_nvram_by_index(s, index) =3D=3D ACPI_ERST_STATU= S_SUCCESS) { + ++index; + } + } + } + + /* Initialize record_count */ + get_erst_record_count(s); + + erst_debug(ACPI_ERST_BASE_PROP" %016llx\n", (unsigned long long)s->pro= p_base); + erst_debug(ACPI_ERST_SIZE_PROP" %x\n", s->prop_size); + erst_debug(ACPI_ERST_FILE_PROP" %s\n", s->prop_path); + + memory_region_init_io(&s->iomem, OBJECT(s), &erst_rw_ops, s, + TYPE_ACPI_ERST, ERST_IOMEM_SIZE); + sysbus_init_mmio(d, &s->iomem); + erst_debug("-erst_realizefn()\n"); +} + +static void erst_unrealizefn(DeviceState *dev) +{ + ERSTDeviceState *s =3D ACPIERST(dev); + + erst_debug("+erst_unrealizefn()\n"); + + if (s->hostmem_obj) { + object_unref(s->hostmem_obj); + } + + erst_debug("-erst_unrealizefn()\n"); +} + +static void erst_reset(DeviceState *dev) +{ + ERSTDeviceState *s =3D ACPIERST(dev); + + erst_debug("+erst_reset(%p) %d\n", s, s->record_count); + s->operation =3D 0; + s->busy_status =3D 0; + s->command_status =3D ACPI_ERST_STATUS_SUCCESS; + /* indicate empty/no-more until further notice */ + s->record_identifier =3D ERST_INVALID_RECORD_ID; + s->record_offset =3D 0; + s->next_record_index =3D 0; + /* NOTE: record_count and nvram are initialized elsewhere */ + erst_debug("-erst_reset()\n"); +} + +void setup_erst_dev(hwaddr base, Error *error_fatal) +{ + SysBusDevice *s; + DeviceState *dev; + ERSTDeviceState *e; + + dev =3D qdev_try_new(TYPE_ACPI_ERST); + if (!dev) { + error_report("couldn't create ERST device"); + exit(1); + } + e =3D ACPIERST(dev); + e->prop_base =3D base; + s =3D SYS_BUS_DEVICE(dev); + sysbus_realize_and_unref(s, &error_fatal); + sysbus_mmio_map(s, 0, base); +} + +static Property erst_properties[] =3D { + DEFINE_PROP_UINT32(ACPI_ERST_SIZE_PROP, ERSTDeviceState, prop_size, 0x= 00010000), + DEFINE_PROP_STRING(ACPI_ERST_FILE_PROP, ERSTDeviceState, prop_path), + DEFINE_PROP_END_OF_LIST(), +}; + +static void erst_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc =3D DEVICE_CLASS(klass); + + erst_debug("+erst_class_init()\n"); + dc->realize =3D erst_realizefn; + dc->unrealize =3D erst_unrealizefn; + dc->reset =3D erst_reset; + dc->vmsd =3D &erst_vmstate; + device_class_set_props(dc, erst_properties); + dc->desc =3D "ACPI Error Record Serialization Table (ERST) device"; + set_bit(DEVICE_CATEGORY_MISC, dc->categories); + erst_debug("-erst_class_init()\n"); +} + +static const TypeInfo erst_type_info =3D { + .name =3D TYPE_ACPI_ERST, + .parent =3D TYPE_SYS_BUS_DEVICE, + .class_init =3D erst_class_init, + .instance_size =3D sizeof(ERSTDeviceState), +}; + +static void erst_register_types(void) +{ + type_register_static(&erst_type_info); +} + +type_init(erst_register_types) --=20 1.8.3.1 From nobody Sat May 4 16:13:42 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; arc=pass (i=1dmarc=pass fromdomain=oracle.com); dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=2; 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charset="utf-8" This change includes ERST in the build of ACPI. Signed-off-by: Eric DeVolder Suggested-by: Konrad Wilk --- hw/acpi/meson.build | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/acpi/meson.build b/hw/acpi/meson.build index dd69577..262a8ee 100644 --- a/hw/acpi/meson.build +++ b/hw/acpi/meson.build @@ -4,6 +4,7 @@ acpi_ss.add(files( 'aml-build.c', 'bios-linker-loader.c', 'utils.c', + 'erst.c', )) acpi_ss.add(when: 'CONFIG_ACPI_CPU_HOTPLUG', if_true: files('cpu.c')) acpi_ss.add(when: 'CONFIG_ACPI_CPU_HOTPLUG', if_true: files('cpu_hotplug.c= ')) --=20 1.8.3.1 From nobody Sat May 4 16:13:42 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; arc=pass (i=1dmarc=pass fromdomain=oracle.com); dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=2; a=rsa-sha256; t=1622226042; cv=pass; d=zohomail.com; s=zohoarc; b=LbDlKMW4kzJw4Cekod/ddn64kt6tWX0E1BjegzPTi/gBYezj8Q6LxSasnF6uWPI49c/PtImtDtn53DzU5b1uOjI4DooYLSBggTpKwimagME6gPGIq6kKdolMkd7/IhXXQafaUX7wJnCUul5dLyFfBRYtlyBOAIUH4KV6Cz5YK+g= ARC-Message-Signature: i=2; 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envelope-from=qemu-devel-bounces+importer2=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.220.165.32; 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, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_LOW=-0.7, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ehabkost@redhat.com, mst@redhat.com, konrad.wilk@oracle.com, pbonzini@redhat.com, imammedo@redhat.com, boris.ostrovsky@oracle.com, rth@twiddle.net Errors-To: qemu-devel-bounces+importer2=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @oracle.onmicrosoft.com) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This change enables ERST support for x86 guests. ERST can be disabled at run-time, for example, with: -machine q35,erst=3Doff Signed-off-by: Eric DeVolder Suggested-by: Konrad Wilk --- hw/i386/acpi-build.c | 7 +++++++ hw/i386/pc.c | 31 +++++++++++++++++++++++++++++++ include/hw/i386/pc.h | 1 + 3 files changed, 39 insertions(+) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index de98750..6ba79db 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -43,6 +43,7 @@ #include "sysemu/tpm.h" #include "hw/acpi/tpm.h" #include "hw/acpi/vmgenid.h" +#include "hw/acpi/erst.h" #include "hw/boards.h" #include "sysemu/tpm_backend.h" #include "hw/rtc/mc146818rtc_regs.h" @@ -2388,6 +2389,12 @@ void acpi_build(AcpiBuildTables *tables, MachineStat= e *machine) ACPI_DEVICE_IF(x86ms->acpi_dev), x86ms->oem_id, x86ms->oem_table_id); =20 + if (pcms->erst_enabled) { + acpi_add_table(table_offsets, tables_blob); + build_erst(tables_blob, tables->linker, + x86ms->oem_id, x86ms->oem_table_id); + } + vmgenid_dev =3D find_vmgenid_dev(); if (vmgenid_dev) { acpi_add_table(table_offsets, tables_blob); diff --git a/hw/i386/pc.c b/hw/i386/pc.c index 8a84b25..b7b4cc4 100644 --- a/hw/i386/pc.c +++ b/hw/i386/pc.c @@ -74,6 +74,7 @@ #include "qemu/cutils.h" #include "hw/acpi/acpi.h" #include "hw/acpi/cpu_hotplug.h" +#include "hw/acpi/erst.h" #include "hw/boards.h" #include "acpi-build.h" #include "hw/mem/pc-dimm.h" @@ -1111,6 +1112,7 @@ void pc_basic_device_init(struct PCMachineState *pcms, ISADevice *pit =3D NULL; MemoryRegion *ioport80_io =3D g_new(MemoryRegion, 1); MemoryRegion *ioportF0_io =3D g_new(MemoryRegion, 1); + const X86MachineState *x86ms =3D X86_MACHINE(pcms); =20 memory_region_init_io(ioport80_io, NULL, &ioport80_io_ops, NULL, "iopo= rt80", 1); memory_region_add_subregion(isa_bus->address_space_io, 0x80, ioport80_= io); @@ -1153,6 +1155,11 @@ void pc_basic_device_init(struct PCMachineState *pcm= s, } *rtc_state =3D mc146818_rtc_init(isa_bus, 2000, rtc_irq); =20 + if (pcms->erst_enabled && x86_machine_is_acpi_enabled(x86ms)) { + hwaddr base =3D HPET_BASE + 0x10000UL; + setup_erst_dev(base, error_fatal); + } + qemu_register_boot_set(pc_boot_set, *rtc_state); =20 if (!xen_enabled() && pcms->pit_enabled) { @@ -1529,6 +1536,22 @@ static void pc_machine_set_hpet(Object *obj, bool va= lue, Error **errp) pcms->hpet_enabled =3D value; } =20 +#ifdef CONFIG_ACPI +static bool pc_machine_get_erst(Object *obj, Error **errp) +{ + PCMachineState *pcms =3D PC_MACHINE(obj); + + return pcms->erst_enabled; +} + +static void pc_machine_set_erst(Object *obj, bool value, Error **errp) +{ + PCMachineState *pcms =3D PC_MACHINE(obj); + + pcms->erst_enabled =3D value; +} +#endif + static void pc_machine_get_max_ram_below_4g(Object *obj, Visitor *v, const char *name, void *opaque, Error **errp) @@ -1628,6 +1651,9 @@ static void pc_machine_initfn(Object *obj) #ifdef CONFIG_HPET pcms->hpet_enabled =3D true; #endif +#ifdef CONFIG_ACPI + pcms->erst_enabled =3D true; +#endif =20 pc_system_flash_create(pcms); pcms->pcspk =3D isa_new(TYPE_PC_SPEAKER); @@ -1752,6 +1778,11 @@ static void pc_machine_class_init(ObjectClass *oc, v= oid *data) object_class_property_add_bool(oc, "hpet", pc_machine_get_hpet, pc_machine_set_hpet); =20 +#ifdef CONFIG_ACPI + object_class_property_add_bool(oc, "erst", + pc_machine_get_erst, pc_machine_set_erst); +#endif + object_class_property_add(oc, PC_MACHINE_MAX_FW_SIZE, "size", pc_machine_get_max_fw_size, pc_machine_set_max_fw_size, NULL, NULL); diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index dcf060b..4458c8f 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -45,6 +45,7 @@ typedef struct PCMachineState { bool sata_enabled; bool pit_enabled; bool hpet_enabled; + bool erst_enabled; uint64_t max_fw_size; =20 /* NUMA information: */ --=20 1.8.3.1 From nobody Sat May 4 16:13:42 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; arc=pass (i=1dmarc=pass fromdomain=oracle.com); dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=2; a=rsa-sha256; t=1622226449; 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charset="utf-8" This change provides a qtest that locates and then does a simple interrogation of the ERST feature within the guest. Signed-off-by: Eric DeVolder Suggested-by: Konrad Wilk --- tests/qtest/erst-test.c | 106 ++++++++++++++++++++++++++++++++++++++++++++= ++++ tests/qtest/meson.build | 2 + 2 files changed, 108 insertions(+) create mode 100644 tests/qtest/erst-test.c diff --git a/tests/qtest/erst-test.c b/tests/qtest/erst-test.c new file mode 100644 index 0000000..ce7fc70 --- /dev/null +++ b/tests/qtest/erst-test.c @@ -0,0 +1,106 @@ +/* + * QTest testcase for ACPI ERST + * + * Copyright (c) 2021 Oracle + * + * This work is licensed under the terms of the GNU GPL, version 2 or late= r. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "qemu/bitmap.h" +#include "qemu/uuid.h" +#include "hw/acpi/acpi-defs.h" +#include "boot-sector.h" +#include "acpi-utils.h" +#include "libqos/libqtest.h" +#include "qapi/qmp/qdict.h" + +#define RSDP_ADDR_INVALID 0x100000 /* RSDP must be below this address */ + +static uint64_t acpi_find_erst(QTestState *qts) +{ + uint32_t rsdp_offset; + uint8_t rsdp_table[36 /* ACPI 2.0+ RSDP size */]; + uint32_t rsdt_len, table_length; + uint8_t *rsdt, *ent; + uint64_t base =3D 0; + + /* Wait for guest firmware to finish and start the payload. */ + boot_sector_test(qts); + + /* Tables should be initialized now. */ + rsdp_offset =3D acpi_find_rsdp_address(qts); + + g_assert_cmphex(rsdp_offset, <, RSDP_ADDR_INVALID); + + acpi_fetch_rsdp_table(qts, rsdp_offset, rsdp_table); + acpi_fetch_table(qts, &rsdt, &rsdt_len, &rsdp_table[16 /* RsdtAddress = */], + 4, "RSDT", true); + + ACPI_FOREACH_RSDT_ENTRY(rsdt, rsdt_len, ent, 4 /* Entry size */) { + uint8_t *table_aml; + acpi_fetch_table(qts, &table_aml, &table_length, ent, 4, NULL, tru= e); + if (!memcmp(table_aml + 0 /* Header Signature */, "ERST", 4)) { + /* + * Picking up ERST base address from the Register Region + * specified as part of the first Serialization Instruction + * Action (which is a Begin Write Operation). + */ + memcpy(&base, &table_aml[56], sizeof(base)); + g_free(table_aml); + break; + } + g_free(table_aml); + } + g_free(rsdt); + return base; +} + +static char disk[] =3D "tests/erst-test-disk-XXXXXX"; + +#define ERST_CMD() \ + "-accel kvm -accel tcg " \ + "-drive id=3Dhd0,if=3Dnone,file=3D%s,format=3Draw " \ + "-device ide-hd,drive=3Dhd0 ", disk + +static void erst_get_error_log_address_range(void) +{ + QTestState *qts; + uint64_t log_address_range =3D 0; + + qts =3D qtest_initf(ERST_CMD()); + + uint64_t base =3D acpi_find_erst(qts); + g_assert(base !=3D 0); + + /* Issue GET_ERROR_LOG_ADDRESS_RANGE command */ + qtest_writel(qts, base + 0, 0xD); + /* Read GET_ERROR_LOG_ADDRESS_RANGE result */ + log_address_range =3D qtest_readq(qts, base + 8);\ + + /* Check addr_range is offset of base */ + g_assert((base + 16) =3D=3D log_address_range); + + qtest_quit(qts); +} + +int main(int argc, char **argv) +{ + int ret; + + ret =3D boot_sector_init(disk); + if (ret) { + return ret; + } + + g_test_init(&argc, &argv, NULL); + + qtest_add_func("/erst/get-error-log-address-range", + erst_get_error_log_address_range); + + ret =3D g_test_run(); + boot_sector_cleanup(disk); + + return ret; +} diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index 0c76738..deae443 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -66,6 +66,7 @@ qtests_i386 =3D \ (config_all_devices.has_key('CONFIG_RTL8139_PCI') ? ['rtl8139-test'] : [= ]) + \ (config_all_devices.has_key('CONFIG_E1000E_PCI_EXPRESS') ? ['fuzz-e1000e= -test'] : []) + \ (config_all_devices.has_key('CONFIG_ESP_PCI') ? ['am53c974-test'] : []) = + \ + (config_all_devices.has_key('CONFIG_ACPI') ? ['erst-test'] : []) + = \ qtests_pci + = \ ['fdc-test', 'ide-test', @@ -237,6 +238,7 @@ qtests =3D { 'bios-tables-test': [io, 'boot-sector.c', 'acpi-utils.c', 'tpm-emu.c'], 'cdrom-test': files('boot-sector.c'), 'dbus-vmstate-test': files('migration-helpers.c') + dbus_vmstate1, + 'erst-test': files('erst-test.c', 'boot-sector.c', 'acpi-utils.c'), 'ivshmem-test': [rt, '../../contrib/ivshmem-server/ivshmem-server.c'], 'migration-test': files('migration-helpers.c'), 'pxe-test': files('boot-sector.c'), --=20 1.8.3.1 From nobody Sat May 4 16:13:42 2024 Delivered-To: importer2@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer2=patchew.org@nongnu.org; arc=pass (i=1dmarc=pass fromdomain=oracle.com); dmarc=pass(p=none dis=none) header.from=oracle.com ARC-Seal: i=2; a=rsa-sha256; t=1622226231; cv=pass; d=zohomail.com; s=zohoarc; b=AwjY7EUxPU+BtSeXpobfmkivs3DxolraA7wFw6THQaqdp9VaqtpHBA/KNkSogMUphsOByQWgJKpXlIlMWsGg376DmKMlLukiC6/08PooAD4izga4Mc8i/epP3ig9qBPukVkHHn5wQa63jL/DTFxaFpbN+WweLkCL0tVxfKjS0KU= ARC-Message-Signature: i=2; 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charset="utf-8" Signed-off-by: Eric DeVolder Suggested-by: Konrad Wilk --- tests/data/acpi/pc/ERST | Bin 0 -> 976 bytes tests/data/acpi/q35/ERST | Bin 0 -> 976 bytes tests/qtest/bios-tables-test-allowed-diff.h | 4 ---- 3 files changed, 4 deletions(-) diff --git a/tests/data/acpi/pc/ERST b/tests/data/acpi/pc/ERST index e69de29bb2d1d6434b8b29ae775ad8c2e48c5391..7236018951f9d111d8cacaa93ee= 07a8dc3294f18 100644 GIT binary patch literal 976 zcmaKqSq_3Q6h#Y^dE9^rOK=3DGWV&b1h{BUvZ#VzQD#NN_})srw9ZqJfYH@yl5T!0*@ExA}PsmTmxA~y7^f&wF z`=3DC;Mzb#Jlr!;>?JY$ah@BPi%Ksot29-5NhSucQ c)srw9ZqJfYH@yl5T!0*@ExA}PsmTmxA~y7^f&wF z`=3DC;Mzb#Jlr!;>?JY$ah@BPi%Ksot29-5NhSucQ c