Re: Rework hypervisor detection

2014-10-27 Thread Conrad Meyer
Hi John,

I don't have access to phabricator so I'll try and review in email.

 +#ifdef XEN
 +int vm_guest = VM_GUEST_XEN;
 +#else
 +int vm_guest = VM_GUEST_NO; /* Running as virtual machine guest? */
 +#endif

The whitespace between 'int' and 'vm_guest' in the second line seems
wrong (extra space?).

For vmware_hvcall() in x86/include/vmware.h, are you sure the inline
assembly is correct? Have you tried the detection on a VMware VM?
VMware's documentation specifies the arguments in a different
order[0], and at Isilon when we tried the port-based detection in a
slightly older revision of CURRENT, it didn't work (IIRC).

Everything else looks good to me, thanks.

[0]: 
http://kb.vmware.com/selfservice/microsites/search.do?language=en_UScmd=displayKCexternalId=1009458

Best,
Conrad
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Re: Rework hypervisor detection

2014-10-27 Thread Jung-uk Kim
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On 2014-10-27 12:47:13 -0400, Conrad Meyer wrote:
 Hi John,
 
 I don't have access to phabricator so I'll try and review in
 email.
 
 +#ifdef XEN +int vm_guest = VM_GUEST_XEN; +#else +int vm_guest =
 VM_GUEST_NO; /* Running as virtual machine guest? */ +#endif
 
 The whitespace between 'int' and 'vm_guest' in the second line
 seems wrong (extra space?).
 
 For vmware_hvcall() in x86/include/vmware.h, are you sure the
 inline assembly is correct? Have you tried the detection on a
 VMware VM? VMware's documentation specifies the arguments in a
 different order[0], and at Isilon when we tried the port-based
 detection in a slightly older revision of CURRENT, it didn't work
 (IIRC).
 
 Everything else looks good to me, thanks.
 
 [0]:
 http://kb.vmware.com/selfservice/microsites/search.do?language=en_UScmd=displayKCexternalId=1009458

I
 
wrote the code and it worked for me at the time.  I'll try again soon.

Jung-uk Kim
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Re: Rework hypervisor detection

2014-10-27 Thread John Baldwin
On Monday, October 27, 2014 12:47:13 PM Conrad Meyer wrote:
 Hi John,
 
 I don't have access to phabricator so I'll try and review in email.
 
  +#ifdef XEN
  +int vm_guest = VM_GUEST_XEN;
  +#else
  +int vm_guest = VM_GUEST_NO; /* Running as virtual machine guest? */
  +#endif
 
 The whitespace between 'int' and 'vm_guest' in the second line seems
 wrong (extra space?).

Yep, fixed.
 
 For vmware_hvcall() in x86/include/vmware.h, are you sure the inline
 assembly is correct? Have you tried the detection on a VMware VM?
 VMware's documentation specifies the arguments in a different
 order[0], and at Isilon when we tried the port-based detection in a
 slightly older revision of CURRENT, it didn't work (IIRC).

I don't have VMware handy, but it is a simple copy and paste of existing
code in tsc.c.

-- 
John Baldwin
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Re: Rework hypervisor detection

2014-10-27 Thread Jung-uk Kim
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

On 2014-10-27 13:16:45 -0400, Jung-uk Kim wrote:
2014년 10월 27일 13:16에 Jung-uk Kim 이(가) 쓴 글: On 2014-10-27
12:47:13 -0400, Conrad Meyer wrote:
 Hi John,
 
 I don't have access to phabricator so I'll try and review in 
 email.
 
 +#ifdef XEN +int vm_guest = VM_GUEST_XEN; +#else +int vm_guest
 = VM_GUEST_NO; /* Running as virtual machine guest? */ +#endif
 
 The whitespace between 'int' and 'vm_guest' in the second line 
 seems wrong (extra space?).
 
 For vmware_hvcall() in x86/include/vmware.h, are you sure the 
 inline assembly is correct? Have you tried the detection on a 
 VMware VM? VMware's documentation specifies the arguments in a 
 different order[0], and at Isilon when we tried the port-based 
 detection in a slightly older revision of CURRENT, it didn't
 work (IIRC).
 
 Everything else looks good to me, thanks.
 
 [0]: 
 http://kb.vmware.com/selfservice/microsites/search.do?language=en_UScmd=displayKCexternalId=1009458

 
 I wrote the code and it worked for me at the time.  I'll try again
 soon.

I just tested the function and it still works well.

Jung-uk Kim
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