[Xen-devel] [PATCH 4/4] ACPI: Enable THERM_CONTROL MSR write for dom0 even cpufreq=xen

["Wei, Gang" <gang.wei@xxxxxxxxx>]

Enable THERM_CONTROL MSR write for dom0 even cpufreq=xen

Signed-off-by: Wei Gang <gang.wei@xxxxxxxxx>

diff -r bd683e0397b4 xen/arch/x86/traps.c
--- a/xen/arch/x86/traps.c      Tue Feb 17 22:29:38 2009 +0800
+++ b/xen/arch/x86/traps.c      Wed Feb 25 11:23:01 2009 +0800
@@ -2187,10 +2187,17 @@ static int emulate_privileged_op(struct 
         case MSR_IA32_MPERF:
         case MSR_IA32_APERF:
         case MSR_IA32_PERF_CTL:
+            if ( boot_cpu_data.x86_vendor != X86_VENDOR_INTEL )
+                goto fail;
+            if ( !is_cpufreq_controller(v->domain) )
+                break;
+            if ( wrmsr_safe(regs->ecx, eax, edx) != 0 )
+                goto fail;
+            break;
         case MSR_IA32_THERM_CONTROL:
             if ( boot_cpu_data.x86_vendor != X86_VENDOR_INTEL )
                 goto fail;
-            if ( !is_cpufreq_controller(v->domain) )
+            if ( d->domain_id != 0 )
                 break;
             if ( wrmsr_safe(regs->ecx, eax, edx) != 0 )
                 goto fail;

Attachment: 4-xen-re-enable-THERM_CONTROL-msr.patch
Description: 4-xen-re-enable-THERM_CONTROL-msr.patch

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