From: Masayoshi Mizuma <m.mizuma@xxxxxxxxxxxxxx> Move some functions related to DMI to lscpu-dmi. Signed-off-by: Masayoshi Mizuma <m.mizuma@xxxxxxxxxxxxxx> --- sys-utils/Makemodule.am | 1 + sys-utils/lscpu-dmi.c | 79 +++++++++++++++++++++++++++++++++++++++++ sys-utils/lscpu-virt.c | 50 +------------------------- sys-utils/lscpu.h | 28 +++------------ 4 files changed, 86 insertions(+), 72 deletions(-) create mode 100644 sys-utils/lscpu-dmi.c diff --git a/sys-utils/Makemodule.am b/sys-utils/Makemodule.am index 5459a3a2e..df8fd403a 100644 --- a/sys-utils/Makemodule.am +++ b/sys-utils/Makemodule.am @@ -396,6 +396,7 @@ lscpu_SOURCES = sys-utils/lscpu.c \ sys-utils/lscpu-topology.c \ sys-utils/lscpu-virt.c \ sys-utils/lscpu-arm.c \ + sys-utils/lscpu-dmi.c \ sys-utils/lscpu.h lscpu_LDADD = $(LDADD) libcommon.la libsmartcols.la $(RTAS_LIBS) lscpu_CFLAGS = $(AM_CFLAGS) -I$(ul_libsmartcols_incdir) diff --git a/sys-utils/lscpu-dmi.c b/sys-utils/lscpu-dmi.c new file mode 100644 index 000000000..00d4439f8 --- /dev/null +++ b/sys-utils/lscpu-dmi.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 FUJITSU LIMITED. All rights reserved. + */ + +#include "lscpu.h" + +void to_dmi_header(struct lscpu_dmi_header *h, uint8_t *data) +{ + h->type = data[0]; + h->length = data[1]; + memcpy(&h->handle, data + 2, sizeof(h->handle)); + h->data = data; +} + +char *dmi_string(const struct lscpu_dmi_header *dm, uint8_t s) +{ + char *bp = (char *)dm->data; + + if (!s || !bp) + return NULL; + + bp += dm->length; + while (s > 1 && *bp) { + bp += strlen(bp); + bp++; + s--; + } + + return !*bp ? NULL : bp; +} + +int parse_dmi_table(uint16_t len, uint16_t num, + uint8_t *data, + struct dmi_info *di) +{ + uint8_t *buf = data; + int rc = -1; + int i = 0; + + /* 4 is the length of an SMBIOS structure header */ + while (i < num && data + 4 <= buf + len) { + uint8_t *next; + struct lscpu_dmi_header h; + + to_dmi_header(&h, data); + + /* + * If a short entry is found (less than 4 bytes), not only it + * is invalid, but we cannot reliably locate the next entry. + * Better stop at this point. + */ + if (h.length < 4) + goto done; + + /* look for the next handle */ + next = data + h.length; + while (next - buf + 1 < len && (next[0] != 0 || next[1] != 0)) + next++; + next += 2; + switch (h.type) { + case 0: + di->vendor = dmi_string(&h, data[0x04]); + break; + case 1: + di->manufacturer = dmi_string(&h, data[0x04]); + di->product = dmi_string(&h, data[0x05]); + break; + default: + break; + } + + data = next; + i++; + } + rc = 0; +done: + return rc; +} diff --git a/sys-utils/lscpu-virt.c b/sys-utils/lscpu-virt.c index c86dae8c9..9b61eb6f8 100644 --- a/sys-utils/lscpu-virt.c +++ b/sys-utils/lscpu-virt.c @@ -52,7 +52,7 @@ static const int hv_graphics_pci[] = { #define WORD(x) (uint16_t)(*(const uint16_t *)(x)) #define DWORD(x) (uint32_t)(*(const uint32_t *)(x)) -static void *get_mem_chunk(size_t base, size_t len, const char *devmem) +void *get_mem_chunk(size_t base, size_t len, const char *devmem) { void *p = NULL; int fd; @@ -76,54 +76,6 @@ nothing: return NULL; } -static int parse_dmi_table(uint16_t len, uint16_t num, - uint8_t *data, - struct dmi_info *di) -{ - uint8_t *buf = data; - int rc = -1; - int i = 0; - - /* 4 is the length of an SMBIOS structure header */ - while (i < num && data + 4 <= buf + len) { - uint8_t *next; - struct lscpu_dmi_header h; - - to_dmi_header(&h, data); - - /* - * If a short entry is found (less than 4 bytes), not only it - * is invalid, but we cannot reliably locate the next entry. - * Better stop at this point. - */ - if (h.length < 4) - goto done; - - /* look for the next handle */ - next = data + h.length; - while (next - buf + 1 < len && (next[0] != 0 || next[1] != 0)) - next++; - next += 2; - switch (h.type) { - case 0: - di->vendor = dmi_string(&h, data[0x04]); - break; - case 1: - di->manufacturer = dmi_string(&h, data[0x04]); - di->product = dmi_string(&h, data[0x05]); - break; - default: - break; - } - - data = next; - i++; - } - rc = 0; -done: - return rc; -} - static int hypervisor_from_dmi_table(uint32_t base, uint16_t len, uint16_t num, const char *devmem) { diff --git a/sys-utils/lscpu.h b/sys-utils/lscpu.h index 11b27fb14..9ec3fca17 100644 --- a/sys-utils/lscpu.h +++ b/sys-utils/lscpu.h @@ -297,6 +297,8 @@ void lscpu_decode_arm(struct lscpu_cxt *cxt); int lookup(char *line, char *pattern, char **value); +void *get_mem_chunk(size_t base, size_t len, const char *devmem); + struct lscpu_dmi_header { uint8_t type; @@ -311,28 +313,8 @@ struct dmi_info { char *manufacturer; }; -static inline void to_dmi_header(struct lscpu_dmi_header *h, uint8_t *data) -{ - h->type = data[0]; - h->length = data[1]; - memcpy(&h->handle, data + 2, sizeof(h->handle)); - h->data = data; -} - -static inline char *dmi_string(const struct lscpu_dmi_header *dm, uint8_t s) -{ - char *bp = (char *)dm->data; - - if (!s || !bp) - return NULL; - - bp += dm->length; - while (s > 1 && *bp) { - bp += strlen(bp); - bp++; - s--; - } - return !*bp ? NULL : bp; -} +void to_dmi_header(struct lscpu_dmi_header *h, uint8_t *data); +char *dmi_string(const struct lscpu_dmi_header *dm, uint8_t s); +int parse_dmi_table(uint16_t len, uint16_t num, uint8_t *data, struct dmi_info *di); #endif /* LSCPU_H */ -- 2.27.0