Date: Wed, 23 Jan 2008 00:00:32 -0500 (EST) From: Michael Proto <mike@jellydonut.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: i386/119913: VIA CPU mis-detected in kernel Message-ID: <200801230500.m0N50Wu0026936@socrates.localnet> Resent-Message-ID: <200801230530.m0N5U049072752@freefall.freebsd.org>
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>Number: 119913
>Category: i386
>Synopsis: VIA CPU mis-detected in kernel
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-i386
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Jan 23 05:30:00 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator: Michael Proto
>Release: FreeBSD 6.3-RELEASE i386
>Organization:
>Environment:
System: FreeBSD socrates.localnet 6.3-RELEASE FreeBSD 6.3-RELEASE #8: Mon Jan 21 00:42:19 EST 2008 root@socrates.localnet:/usr/obj/usr/src/sys/SOCRATES i386
>Description:
I have a VIA Esther CPU that is not being properly detected by the
kernel.
Upon boot of GENERIC, I see the following for my CPU:
CPU: VIA/IDT Unknown (1200.01-MHz 686-class CPU)
Origin = "CentaurHauls" Id = 0x6d0 Stepping = 0
Features=0xa7c9baff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,APIC,SEP,MTRR,PGE,CMOV,PAT,CLFLUSH,ACPI,MMX,FXSR,SSE,SSE2,TM,PBE>
Features2=0x4181<SSE3,EST,TM2,xTPR>
This should be a VIA Esther CPU. By applying the following patch the CPU is
correctly detected:
CPU: VIA C7 Esther+RNG+AES+AES-CTR+SHA1+SHA256+RSA (1200.01-MHz 686-class CPU)
Origin = "CentaurHauls" Id = 0x6d0 Stepping = 0
Features=0xa7c9baff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,APIC,SEP,MTRR,PGE,CMOV,PAT,CLFLUSH,ACPI,MMX,FXSR,SSE,SSE2,TM,PBE>
Features2=0x4181<SSE3,EST,TM2,xTPR>
>How-To-Repeat:
Boot GENERIC on this CPU, purchased as a soldiered-on component of
the Jetway J7F4K1G2E motherboard from e-itx.com
>Fix:
Apply the following patch:
--- sys/i386/i386/identcpu.c.old 2008-01-04 03:44:43.000000000 -0500
+++ sys/i386/i386/identcpu.c 2008-01-01 10:34:25.000000000 -0500
@@ -564,6 +564,8 @@
goto via_common;
case 0x6a0:
strcpy(cpu_model, "VIA C7 Esther");
+ case 0x6d0:
+ strcpy(cpu_model, "VIA C7 Esther");
via_common:
do_cpuid(0xc0000000, regs);
i = regs[0];
>Release-Note:
>Audit-Trail:
>Unformatted:
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