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From 7089a63d03b35743de533686906c451b917d0909 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Wed, 16 Dec 2020 13:08:51 +0100
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Subject: [PATCH 55/56] lscpu: (arm) read vendor and model from BIOS
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This patch backports the current upstream code to read CPU vendor and
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model name from BIOS.
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Upstream: http://github.com/karelzak/util-linux/commit/8014104bea78f6f82cb82e16329b562e60ecdc87
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Upstream: http://github.com/karelzak/util-linux/commit/367c85c472869b75eaf770d4be0b360e30710b95
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1883056
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Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1882740
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Signed-off-by: Karel Zak <kzak@redhat.com>
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---
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sys-utils/lscpu-dmi.c | 44 +++++++++++++++++++++++++++++++++++++++++++
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sys-utils/lscpu.c | 7 +++++++
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sys-utils/lscpu.h | 3 +++
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3 files changed, 54 insertions(+)
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diff --git a/sys-utils/lscpu-dmi.c b/sys-utils/lscpu-dmi.c
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index 31127f48a..3bdd7dcb2 100644
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--- a/sys-utils/lscpu-dmi.c
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+++ b/sys-utils/lscpu-dmi.c
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@@ -28,6 +28,7 @@
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#include <stdio.h>
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#include "lscpu.h"
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+#include "all-io.h"
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#define _PATH_SYS_DMI "/sys/firmware/dmi/tables/DMI"
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@@ -353,3 +354,46 @@ int get_number_of_physical_sockets_from_dmi(void)
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else
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return di.sockets;
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}
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+
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+
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+#define _PATH_SYS_DMI_TYPE4 "/sys/firmware/dmi/entries/4-0/raw"
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+#define PROC_MFR_OFFSET 0x07
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+#define PROC_VERSION_OFFSET 0x10
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+
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+/*
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+ * Use firmware to get human readable names
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+ */
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+int arm_smbios_decode(struct lscpu_desc *desc)
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+{
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+ uint8_t data[8192];
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+ char buf[128], *str;
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+ struct dmi_header h;
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+ int fd;
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+ ssize_t rs;
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+
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+ fd = open(_PATH_SYS_DMI_TYPE4, O_RDONLY);
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+ if (fd < 0)
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+ return fd;
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+
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+ rs = read_all(fd, (char *) data, 8192);
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+ close(fd);
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+
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+ if (rs == -1)
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+ return -1;
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+
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+ to_dmi_header(&h, data);
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+
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+ str = dmi_string(&h, data[PROC_MFR_OFFSET]);
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+ if (str) {
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+ xstrncpy(buf, str, 127);
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+ desc->bios_vendor = xstrdup(buf);
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+ }
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+
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+ str = dmi_string(&h, data[PROC_VERSION_OFFSET]);
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+ if (str) {
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+ xstrncpy(buf, str, 127);
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+ desc->bios_modelname = xstrdup(buf);
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+ }
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+
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+ return 0;
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+}
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diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c
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index dc6dc97c3..70a797dd6 100644
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--- a/sys-utils/lscpu.c
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+++ b/sys-utils/lscpu.c
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@@ -1868,6 +1868,8 @@ print_summary(struct lscpu_desc *desc, struct lscpu_modifier *mod)
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add_summary_n(tb, _("NUMA node(s):"), desc->nnodes);
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if (desc->vendor)
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add_summary_s(tb, _("Vendor ID:"), desc->vendor);
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+ if (desc->bios_vendor)
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+ add_summary_s(tb, _("BIOS Vendor ID:"), desc->bios_vendor);
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if (desc->machinetype)
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add_summary_s(tb, _("Machine type:"), desc->machinetype);
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if (desc->family)
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@@ -1876,6 +1878,8 @@ print_summary(struct lscpu_desc *desc, struct lscpu_modifier *mod)
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add_summary_s(tb, _("Model:"), desc->revision ? desc->revision : desc->model);
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if (desc->modelname || desc->cpu)
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add_summary_s(tb, _("Model name:"), desc->cpu ? desc->cpu : desc->modelname);
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+ if (desc->bios_modelname)
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+ add_summary_s(tb, _("BIOS Model name:"), desc->bios_modelname);
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if (desc->stepping)
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add_summary_s(tb, _("Stepping:"), desc->stepping);
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if (desc->mhz)
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@@ -2109,6 +2113,9 @@ int main(int argc, char *argv[])
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read_nodes(desc);
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read_hypervisor(desc, mod);
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+
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+ if (mod->system == SYSTEM_LIVE)
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+ arm_smbios_decode(desc);
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arm_cpu_decode(desc);
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diff --git a/sys-utils/lscpu.h b/sys-utils/lscpu.h
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index 1aef8202d..802719eeb 100644
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--- a/sys-utils/lscpu.h
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+++ b/sys-utils/lscpu.h
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@@ -79,10 +79,12 @@ struct polarization_modes {
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struct lscpu_desc {
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char *arch;
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char *vendor;
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+ char *bios_vendor; /* aarch64 */
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char *machinetype; /* s390 */
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char *family;
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char *model;
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char *modelname;
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+ char *bios_modelname; /* aarch64 */
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char *revision; /* alternative for model (ppc) */
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char *cpu; /* alternative for modelname (ppc, sparc) */
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char *virtflag; /* virtualization flag (vmx, svm) */
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@@ -187,5 +189,6 @@ struct lscpu_modifier {
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extern int read_hypervisor_dmi(void);
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extern int get_number_of_physical_sockets_from_dmi(void);
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extern void arm_cpu_decode(struct lscpu_desc *desc);
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+extern int arm_smbios_decode(struct lscpu_desc *desc);
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#endif /* LSCPU_H */
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--
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2.29.2
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