41 lines
1.1 KiB
Diff
41 lines
1.1 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Eduardo Habkost <ehabkost@redhat.com>
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Date: Wed, 12 Jul 2017 13:20:57 -0300
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Subject: [PATCH] target/i386: Define CPUID_MODEL_ID_SZ macro
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Document cpu_x86_fill_model_id() and define CPUID_MODEL_ID_SZ to
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help callers use the right buffer size.
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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Message-Id: <20170712162058.10538-4-ehabkost@redhat.com>
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Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
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---
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target/i386/cpu.c | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/target/i386/cpu.c b/target/i386/cpu.c
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index 1affd3bb5b..54832dd591 100644
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--- a/target/i386/cpu.c
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+++ b/target/i386/cpu.c
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@@ -1541,6 +1541,17 @@ static bool lmce_supported(void)
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return !!(mce_cap & MCG_LMCE_P);
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}
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+#define CPUID_MODEL_ID_SZ 48
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+
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+/**
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+ * cpu_x86_fill_model_id:
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+ * Get CPUID model ID string from host CPU.
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+ *
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+ * @str should have at least CPUID_MODEL_ID_SZ bytes
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+ *
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+ * The function does NOT add a null terminator to the string
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+ * automatically.
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+ */
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static int cpu_x86_fill_model_id(char *str)
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{
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uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
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--
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2.11.0
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