Re: [kvm-unit-tests PATCH] x86: pmu: Test full-width counter writes support

[Like Xu <like.xu@linux.intel.com>]

On 2021/5/12 5:27, Jim Mattson wrote:
> On Fri, May 29, 2020 at 12:44 AM Like Xu <like.xu@linux.intel.com> wrote:
>>
>> When the full-width writes capability is set, use the alternative MSR
>> range to write larger sign counter values (up to GP counter width).
>>
>> Signed-off-by: Like Xu <like.xu@linux.intel.com>
>> ---
> 
>> +       /*
>> +        * MSR_IA32_PMCn supports writing values ​​up to GP counter width,
>> +        * and only the lowest bits of GP counter width are valid.
>> +        */
> 
> Could you rewrite this comment in ASCII, please? I would do it, but
> I'm not sure what the correct translation is.
> 

My first submitted patch says that
they are just Unicode "ZERO WIDTH SPACE".

https://lore.kernel.org/kvm/20200508083218.120559-2-like.xu@linux.intel.com/

Here you go:

---

 From 1b058846aabcd7a85b5c5f41cb2b63b6a348bdc4 Mon Sep 17 00:00:00 2001
From: Like Xu <like.xu@linux.intel.com>
Date: Wed, 12 May 2021 14:26:40 +0800
Subject: [PATCH] x86: pmu: Fix a comment about full-width counter writes
  support

Remove two Unicode characters 'ZERO WIDTH SPACE' (U+200B).

Fixes: 22f2901a0e ("x86: pmu: Test full-width counter writes support")
Reported-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Like Xu <like.xu@linux.intel.com>
---
  x86/pmu.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/x86/pmu.c b/x86/pmu.c
index 5a3d55b..6cb3506 100644
--- a/x86/pmu.c
+++ b/x86/pmu.c
@@ -510,7 +510,7 @@ static void  check_gp_counters_write_width(void)
         }

         /*
-        * MSR_IA32_PMCn supports writing values ​​up to GP 
counter width,
+        * MSR_IA32_PMCn supports writing values up to GP counter width,
          * and only the lowest bits of GP counter width are valid.
          */
         for (i = 0; i < num_counters; i++) {
--
2.31.1