[Bug 48386] New: Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

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WineHQ Bugzilla

30 Dec 2019 30 Dec '19

11 a.m.

https://bugs.winehq.org/show_bug.cgi?id=48386

Bug ID: 48386 Summary: Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected) Product: Wine Version: 5.0-rc3 Hardware: x86 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: ntdll Assignee: wine-bugs@winehq.org Reporter: gofmanp@gmail.com Distribution: ---

Created attachment 66146 --> https://bugs.winehq.org/attachment.cgi?id=66146 ntdll: Detect more processor features on Intel CPU.

Split off from bug #48291.

The application reads CPU features from shared user data area and requires or benefits from certain CPU features. Some features from CPUID level 0x80000001 are currently recognized for AMD only while they are available on Intel as well.

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WineHQ Bugzilla

30 Dec 30 Dec

5:58 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

Zebediah Figura z.figura12@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Blocks| |48389

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WineHQ Bugzilla

27 Jan 27 Jan

9:37 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

Zebediah Figura z.figura12@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Depends on| |48291

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WineHQ Bugzilla

9:42 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

Zebediah Figura z.figura12@gmail.com changed:

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WineHQ Bugzilla

18 Feb 18 Feb

5:29 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

Matteo Bruni matteo.mystral@gmail.com changed:

--- Comment #1 from Matteo Bruni matteo.mystral@gmail.com --- Fixed by https://source.winehq.org/git/wine.git/commitdiff/fc8e9bac5f03c68dcd176831e53648de5b20dd5d, thank you Paul.

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WineHQ Bugzilla

19 Feb 19 Feb

5:49 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

--- Comment #2 from Matteo Bruni matteo.mystral@gmail.com --- (In reply to Matteo Bruni from comment #1)

...

Fixed by https://source.winehq.org/git/wine.git/commitdiff/ fc8e9bac5f03c68dcd176831e53648de5b20dd5d, thank you Paul.

Actually, I don't know if that patch is enough to fix this bug. Paul, is that the case?

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WineHQ Bugzilla

7 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

--- Comment #3 from Paul Gofman gofmanp@gmail.com --- (In reply to Matteo Bruni from comment #2)

...

(In reply to Matteo Bruni from comment #1)

...

Actually, I don't know if that patch is enough to fix this bug. Paul, is that the case?

Yes, I tested Detroit Become Human still works this way.

My initial patch had more things in it but they are either not quite correct (1) or not needed (2), so I cleaned those for upstream after testing.

1. Additional bits from cpuid on Intel pulled from AMD branch. Those are actually AMD specific. They seem to be always 0 on Intel (so it has no effect), but relying on them seems not quite correct as Intel manual refers those as reserved.

2. PF_RDWRFSGSBASE_AVAILABLE processor feature This CPU feature is available on Windows on real hardware (at least where I tested it) but is not available under VMs (testbot and my local VirtualBox). There is cpuid flag for that which is set on Windows but is not set on Linux (Linux denies rdfsbase / rdgsbase through machine status word). So adding that was a bit not straightforward and as soon as I figured it is not actually needed here I thought it can wait until some application wants that.

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WineHQ Bugzilla

28 Feb 28 Feb

7:56 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

Alexandre Julliard julliard@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |CLOSED

--- Comment #4 from Alexandre Julliard julliard@winehq.org --- Closing bugs fixed in 5.3.

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WineHQ Bugzilla

21 May 21 May

10:03 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

Michael Stefaniuc mstefani@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|--- |5.0.x

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WineHQ Bugzilla

2 Jun 2 Jun

10:14 p.m.

New subject: [Bug 48386] Some CPU features are not reported for Intel CPU (Detroit: Become Human is affected)

https://bugs.winehq.org/show_bug.cgi?id=48386

Michael Stefaniuc mstefani@winehq.org changed:

What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|5.0.x |---

--- Comment #5 from Michael Stefaniuc mstefani@winehq.org --- Removing the 5.0.x milestone from bug fixes included in 5.0.1.

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