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(parent: 08a7525) | patch
kaiser: Set _PAGE_NX only if supported
authorLepton Wu <ytht.net@gmail.com>
Fri, 12 Jan 2018 21:42:56 +0000 (13:42 -0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Jan 2018 08:38:54 +0000 (09:38 +0100)
commitec61bafb2abd42a148d41143570732052a577fc0
treed04462d175ad00196b73987170248016b4dd07d3tree | snapshot
parent08a7525811043b1d4e085fa028ee6e9fe89bd7cfcommit | diff
kaiser: Set _PAGE_NX only if supported

This finally resolve crash if loaded under qemu + haxm. Haitao Shan pointed
out that the reason of that crash is that NX bit get set for page tables.
It seems we missed checking if _PAGE_NX is supported in kaiser_add_user_map

Link: https://www.spinics.net/lists/kernel/msg2689835.html
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Lepton Wu <ytht.net@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/mm/kaiser.c diff | blob | history
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