x86: bugfix wbinvd() model check instead of family check

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wbinvd is supported on all CPUs 486 or later. But,
pageattr.c is checking x86_model >= 4 before wbinvd(), which looks like
an oversight bug. It was first introduced at one place by changeset
d7c8f21a8c and got copied over to second
place in the same file later.

[ Impact: fix missing cache flush on early-model CPUs, potential data corruption ]

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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venkatesh.pallipadi@intel.com 2009-05-22 13:23:37 -07:00 • committed by H. Peter Anvin

parent 0c752a9335

commit 0b827537e3

1 changed files with 2 additions and 2 deletions

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arch/x86/mm/pageattr.c

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