add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/xen/mcelog.c
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@@ -222,7 +222,7 @@
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 	struct mcinfo_global *mc_global;
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 	struct mcinfo_bank *mc_bank;
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 	struct xen_mce m;
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-	uint32_t i;
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+	unsigned int i, j;
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 	mic = NULL;
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 	x86_mcinfo_lookup(&mic, mi, MC_TYPE_GLOBAL);
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@@ -248,7 +248,17 @@
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 	m.socketid = g_physinfo[i].mc_chipid;
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 	m.cpu = m.extcpu = g_physinfo[i].mc_cpunr;
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 	m.cpuvendor = (__u8)g_physinfo[i].mc_vendor;
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-	m.mcgcap = g_physinfo[i].mc_msrvalues[__MC_MSR_MCGCAP].value;
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+	for (j = 0; j < g_physinfo[i].mc_nmsrvals; ++j)
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+		switch (g_physinfo[i].mc_msrvalues[j].reg) {
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+		case MSR_IA32_MCG_CAP:
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+			m.mcgcap = g_physinfo[i].mc_msrvalues[j].value;
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+			break;
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+
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+		case MSR_PPIN:
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+		case MSR_AMD_PPIN:
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+			m.ppin = g_physinfo[i].mc_msrvalues[j].value;
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+			break;
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+		}
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 	mic = NULL;
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 	x86_mcinfo_lookup(&mic, mi, MC_TYPE_BANK);