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Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland programs v2
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From:
H. Peter Anvin <hpa@...>
To: Cyrill Gorcunov <gorcunov@...>
Cc: Ingo Molnar <mingo@...>, David Woodhouse <dwmw2@...>, LKML <linux-kernel@...>, Thomas Gleixner <tglx@...>
Subject:
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland programs v2
Date: Tuesday, April 29, 2008 - 11:46 am
Cyrill Gorcunov wrote:
quoted text
> | > | with this patch we have <asm/vm86.h> included only > | if __i386__ defined *BUT* X86_VM_MASK is tried to be > | used *without* __386__ being checked (as example - ptrace.h:user_mode_vm). > | I'm not sure how to properly hanle this situation. But will take a look. > | > | So I suggest you drop my last patch (which moves X86_VM_MASK > | into __KERNEL__ section) for a while. I'll recheck all > | this stuff later (too busy now). > | > | - Cyrill - > > Thomas, could you take a look please - is my suspicious wrong? > > - Cyrill -
X86_VM_MASK should be defined to zero on x86-64. Part of the reason for this symbol is so we don't have to put #ifdef around its uses. -hpa --
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Messages in current thread:
[PATCH] x86: vm86 - hide X86_VM_MASK from userland programs v2
, Cyrill Gorcunov
, (Thu Apr 24, 10:41 am)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, H. Peter Anvin
, (Thu Apr 24, 2:06 pm)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Ingo Molnar
, (Mon Apr 28, 2:23 pm)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Ingo Molnar
, (Mon Apr 28, 3:20 pm)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Cyrill Gorcunov
, (Tue Apr 29, 11:29 am)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Cyrill Gorcunov
, (Tue Apr 29, 11:43 am)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, H. Peter Anvin
, (Tue Apr 29, 11:46 am)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Cyrill Gorcunov
, (Tue Apr 29, 1:44 pm)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Cyrill Gorcunov
, (Tue Apr 29, 12:01 pm)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Cyrill Gorcunov
, (Tue Apr 29, 12:08 pm)
Re: [PATCH] x86: vm86 - hide X86_VM_MASK from userland progr...
, Cyrill Gorcunov
, (Tue Apr 29, 9:36 am)
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