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x86/CPU/AMD: Do not check CPUID max ext level before parsing SMP info

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commit 119bff8a9c upstream

Old code used to check whether CPUID ext max level is >= 0x80000008 because
that last leaf contains the number of cores of the physical CPU.  The three
functions called there now do not depend on that leaf anymore so the check
can go.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Borislav Petkov
2018-06-15 20:48:39 +02:00
committed by Greg Kroah-Hartman
parent d20d8f7f6a
commit 35c67d5baa
1 changed files with 2 additions and 5 deletions
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7
arch/x86/kernel/cpu/amd.c
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@@ -835,11 +835,8 @@ static void init_amd(struct cpuinfo_x86 *c)
cpu_detect_cache_sizes(c);
/* Multi core CPU? */
if (c->extended_cpuid_level >= 0x80000008) {
amd_detect_cmp(c);
srat_detect_node(c);
}
amd_detect_cmp(c);
srat_detect_node(c);
init_amd_cacheinfo(c);