Bug 518337 - /proc/cpuinfo does not list all CPU flags presented by CPU
Summary: /proc/cpuinfo does not list all CPU flags presented by CPU
Keywords:
Status: CLOSED DUPLICATE of bug 518090
Alias: None
Product: Red Hat Enterprise Linux 5
Classification: Red Hat
Component: kvm
Version: 5.4
Hardware: All
OS: Linux
urgent
urgent
Target Milestone: rc
: ---
Assignee: john cooper
QA Contact: Lawrence Lim
URL:
Whiteboard:
Depends On: 517928
Blocks:
TreeView+ depends on / blocked
 
Reported: 2009-08-19 22:09 UTC by Prarit Bhargava
Modified: 2014-07-25 03:45 UTC (History)
13 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of: 517928
Environment:
Last Closed: 2009-11-29 14:39:27 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
RHEL5 fix for this issue (847 bytes, patch)
2009-08-19 22:12 UTC, Prarit Bhargava 		no flags Details | Diff
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Comment 1 Prarit Bhargava 2009-08-19 22:09:51 UTC 
This is the kvm portion of bug 517928.

(In reply to comment #10)
> we should also add these flags to arch/x86/kvm/x86.c if we
> want them to be exposed to guests and actually used

I have to retract that part; if specified on the command line, a flag is exposed to guest no matter if kvm considers it "supported" or not. Adding these flags to qemu's target-i386/helper.c should be enough.
Comment 2 Prarit Bhargava 2009-08-19 22:12:26 UTC 
Created attachment 358003 [details]
RHEL5 fix for this issue

The flags are defined, however, sse4_1 and sse4_2 strings are not.

I have not tested or compiled this patch.

P.
Comment 3 Dor Laor 2009-11-29 14:39:27 UTC 

*** This bug has been marked as a duplicate of bug 518090 ***
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