linux-kernel - Re: [PATCH 19/22] 2.6.22-rc3 perfmon2 : modified x86

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Date:	Thu, 31 May 2007 07:26:07 -0700
From:	Stephane Eranian <eranian@....hp.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 19/22] 2.6.22-rc3 perfmon2 : modified x86_64 files

Andi,

On Thu, May 31, 2007 at 04:20:38PM +0200, Andi Kleen wrote:
> 
> > > Just use a cpu notifier instead. No need to add everybody's per cpu init code here.
> > 
> > The code must run on the CPU that is being initialized.
> 
> smp_call_function_single() 
> 
Isn't that more complicated than just adding a hook in cpu_disable()?

> > > 
> > > No compat syscalls? 
> > > 
> > compat syscalls for what? I need to ensure backward compatiblity on IA-64 only.
> 
> For 32bit / i386 code.

I's there in ia32entry.S. Was it missing from the E-mail?

In anycase, here it is:

diff --exclude=.git -urp linux-2.6.22.base/arch/x86_64/ia32/ia32entry.S linux-2.6.22/arch/x86_64/ia32/ia32entry.S
--- linux-2.6.22.base/arch/x86_64/ia32/ia32entry.S      2007-05-29 03:17:16.000000000 -0700
+++ linux-2.6.22/arch/x86_64/ia32/ia32entry.S   2007-05-29 03:24:14.000000000 -0700
@@ -719,4 +719,16 @@ ia32_sys_call_table:
        .quad compat_sys_signalfd
        .quad compat_sys_timerfd
        .quad sys_eventfd
+       .quad sys_pfm_create_context
+       .quad sys_pfm_write_pmcs
+       .quad sys_pfm_write_pmds
+       .quad sys_pfm_read_pmds
+       .quad sys_pfm_load_context
+       .quad sys_pfm_start
+       .quad sys_pfm_stop
+       .quad sys_pfm_restart
+       .quad sys_pfm_create_evtsets
+       .quad sys_pfm_getinfo_evtsets
+       .quad sys_pfm_delete_evtsets
+       .quad sys_pfm_unload_context
 ia32_syscall_end:



-- 

-Stephane
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/