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trivial: Add a helper method to check for an Intel CPU

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Some plugins will be Intel specific.
This commit is contained in:
Richard Hughes 2020-05-09 20:32:08 +01:00
parent 46f5415eda
commit 9223c89019
3 changed files with 32 additions and 0 deletions
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30
libfwupdplugin/fu-common.c
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@ -19,6 +19,8 @@
#include <shlwapi.h>
#endif
#include <cpuid.h>
#include <archive_entry.h>
#include <archive.h>
#include <errno.h>
@ -2026,3 +2028,31 @@ fu_common_kernel_locked_down (void)
return FALSE;
#endif
}
/**
* fu_common_is_cpu_intel:
*
* Uses CPUID to discover the CPU vendor and check if it is Intel.
*
* Return value: %TRUE if the vendor was Intel.
*
* Since: 1.5.0
**/
gboolean
fu_common_is_cpu_intel (void)
{
guint eax = 0;
guint ebx = 0;
guint ecx = 0;
guint edx = 0;
guint level = 0;
/* get vendor */
__get_cpuid(level, &eax, &ebx, &ecx, &edx);
if (ebx == signature_INTEL_ebx &&
edx == signature_INTEL_edx &&
ecx == signature_INTEL_ecx) {
return TRUE;
}
return FALSE;
}

1
libfwupdplugin/fu-common.h
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@ -224,3 +224,4 @@ gchar **fu_common_strnsplit (const gchar *str,
const gchar *delimiter,
gint max_tokens);
gboolean fu_common_kernel_locked_down (void);
gboolean fu_common_is_cpu_intel (void);

1
libfwupdplugin/fwupdplugin.map
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@ -584,6 +584,7 @@ LIBFWUPDPLUGIN_1.4.1 {
LIBFWUPDPLUGIN_1.5.0 {
global:
fu_common_filename_glob;
fu_common_is_cpu_intel;
fu_udev_device_get_parent_name;
fu_udev_device_get_sysfs_attr;
local: *;