[xen staging] x86/tsc: Fix diagnostics for TSC frequency

[patchbot@xxxxxxx]

commit b2bc1e714462c6cc222e3bbc38d87b039b4fa405
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Wed Aug 5 14:56:11 2020 +0100
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Wed Aug 5 17:35:11 2020 +0100

    x86/tsc: Fix diagnostics for TSC frequency
    
    A Gemini Lake platform prints:
    
      (XEN) CPU0: TSC: 19200000MHz * 279 / 3 = 1785600000MHz
      (XEN) CPU0: 800..1800 MHz
    
    during boot.  The units on the first line are Hz, not MHz, so correct that 
and
    add a space for clarity.
    
    Also, for the min/max line, use three dots instead of two and add more 
spaces
    so that the line can't be mistaken for being a double decimal point typo.
    
    Boot now reads:
    
      (XEN) CPU0: TSC: 19200000 Hz * 279 / 3 = 1785600000 Hz
      (XEN) CPU0: 800 ... 1800 MHz
    
    Extend these changes to the other TSC diagnostics.
    
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/cpu/amd.c   |  4 ++--
 xen/arch/x86/cpu/intel.c | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/xen/arch/x86/cpu/amd.c b/xen/arch/x86/cpu/amd.c
index 0cc6853c42..8bc51bec10 100644
--- a/xen/arch/x86/cpu/amd.c
+++ b/xen/arch/x86/cpu/amd.c
@@ -624,10 +624,10 @@ void amd_log_freq(const struct cpuinfo_x86 *c)
        if (idx && idx < h &&
            !rdmsr_safe(0xC0010064 + idx, val) && (val >> 63) &&
            !rdmsr_safe(0xC0010064, hi) && (hi >> 63))
-               printk("CPU%u: %lu (%lu..%lu) MHz\n",
+               printk("CPU%u: %lu (%lu ... %lu) MHz\n",
                       smp_processor_id(), FREQ(val), FREQ(lo), FREQ(hi));
        else if (h && !rdmsr_safe(0xC0010064, hi) && (hi >> 63))
-               printk("CPU%u: %lu..%lu MHz\n",
+               printk("CPU%u: %lu ... %lu MHz\n",
                       smp_processor_id(), FREQ(lo), FREQ(hi));
        else
                printk("CPU%u: %lu MHz\n", smp_processor_id(), FREQ(lo));
diff --git a/xen/arch/x86/cpu/intel.c b/xen/arch/x86/cpu/intel.c
index 69e99bb358..37439071d9 100644
--- a/xen/arch/x86/cpu/intel.c
+++ b/xen/arch/x86/cpu/intel.c
@@ -396,14 +396,14 @@ static void intel_log_freq(const struct cpuinfo_x86 *c)
 
             val *= ebx;
             do_div(val, eax);
-            printk("CPU%u: TSC: %uMHz * %u / %u = %LuMHz\n",
+            printk("CPU%u: TSC: %u Hz * %u / %u = %Lu Hz\n",
                    smp_processor_id(), ecx, ebx, eax, val);
         }
         else if ( ecx | eax | ebx )
         {
             printk("CPU%u: TSC:", smp_processor_id());
             if ( ecx )
-                printk(" core: %uMHz", ecx);
+                printk(" core: %u Hz", ecx);
             if ( ebx && eax )
                 printk(" ratio: %u / %u", ebx, eax);
             printk("\n");
@@ -417,11 +417,11 @@ static void intel_log_freq(const struct cpuinfo_x86 *c)
         {
             printk("CPU%u:", smp_processor_id());
             if ( ecx )
-                printk(" bus: %uMHz", ecx);
+                printk(" bus: %u MHz", ecx);
             if ( eax )
-                printk(" base: %uMHz", eax);
+                printk(" base: %u MHz", eax);
             if ( ebx )
-                printk(" max: %uMHz", ebx);
+                printk(" max: %u MHz", ebx);
             printk("\n");
         }
     }
@@ -446,7 +446,7 @@ static void intel_log_freq(const struct cpuinfo_x86 *c)
 
         printk("CPU%u: ", smp_processor_id());
         if ( min_ratio )
-            printk("%u..", (factor * min_ratio + 50) / 100);
+            printk("%u ... ", (factor * min_ratio + 50) / 100);
         printk("%u MHz\n", (factor * max_ratio + 50) / 100);
     }
 }
--
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