02ae138288
Currently, read_log() has two implementations: one for ACPI platforms and the other for device tree(OF) based platforms. The proper one is selected at compile time using Kconfig and #ifdef in the Makefile, which is not the recommended approach. This patch removes the #ifdef in the Makefile by defining a single read_log() method, which checks for ACPI/OF event log properties at runtime. [jarkko.sakkinen@linux.intel.com: added tpm_ prefix to read_log*] Suggested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Nayna Jain <nayna@linux.vnet.ibm.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Tested-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
97 lines
1.6 KiB
C
97 lines
1.6 KiB
C
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#ifndef __TPM_EVENTLOG_H__
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#define __TPM_EVENTLOG_H__
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#define TCG_EVENT_NAME_LEN_MAX 255
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#define MAX_TEXT_EVENT 1000 /* Max event string length */
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#define ACPI_TCPA_SIG "TCPA" /* 0x41504354 /'TCPA' */
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#ifdef CONFIG_PPC64
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#define do_endian_conversion(x) be32_to_cpu(x)
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#else
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#define do_endian_conversion(x) x
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#endif
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enum bios_platform_class {
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BIOS_CLIENT = 0x00,
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BIOS_SERVER = 0x01,
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};
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struct tpm_bios_log {
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void *bios_event_log;
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void *bios_event_log_end;
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};
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struct tcpa_event {
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u32 pcr_index;
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u32 event_type;
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u8 pcr_value[20]; /* SHA1 */
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u32 event_size;
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u8 event_data[0];
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};
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enum tcpa_event_types {
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PREBOOT = 0,
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POST_CODE,
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UNUSED,
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NO_ACTION,
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SEPARATOR,
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ACTION,
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EVENT_TAG,
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SCRTM_CONTENTS,
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SCRTM_VERSION,
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CPU_MICROCODE,
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PLATFORM_CONFIG_FLAGS,
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TABLE_OF_DEVICES,
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COMPACT_HASH,
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IPL,
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IPL_PARTITION_DATA,
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NONHOST_CODE,
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NONHOST_CONFIG,
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NONHOST_INFO,
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};
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struct tcpa_pc_event {
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u32 event_id;
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u32 event_size;
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u8 event_data[0];
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};
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enum tcpa_pc_event_ids {
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SMBIOS = 1,
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BIS_CERT,
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POST_BIOS_ROM,
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ESCD,
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CMOS,
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NVRAM,
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OPTION_ROM_EXEC,
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OPTION_ROM_CONFIG,
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OPTION_ROM_MICROCODE = 10,
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S_CRTM_VERSION,
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S_CRTM_CONTENTS,
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POST_CONTENTS,
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HOST_TABLE_OF_DEVICES,
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};
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#if defined(CONFIG_ACPI)
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int tpm_read_log_acpi(struct tpm_chip *chip);
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#else
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static inline int tpm_read_log_acpi(struct tpm_chip *chip)
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{
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return -ENODEV;
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}
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#endif
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#if defined(CONFIG_OF)
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int tpm_read_log_of(struct tpm_chip *chip);
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#else
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static inline int tpm_read_log_of(struct tpm_chip *chip)
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{
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return -ENODEV;
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}
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#endif
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int tpm_bios_log_setup(struct tpm_chip *chip);
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void tpm_bios_log_teardown(struct tpm_chip *chip);
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#endif
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