Messages in this thread | | | Date | Sun, 13 Mar 2011 21:54:42 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH v2 12/12] driver: Google Memory Console |
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On 03/11/2011 05:43 PM, Mike Waychison wrote: > This patch introduces the 'memconsole' driver. > > Our firmware gives us access to an in-memory log of the firmware's > output. This gives us visibility in a data-center of headless machines > as to what the firmware is doing. > > The memory console is found by the driver by finding a header block in > the EBDA. The buffer is then copied out, and is exported to userland in > the file /sys/firmware/log. >
OK, I really don't like this.
All it has is a 32-bit nonrandom signature, no DMI keying or anything else to protect it. This really isn't sufficient.
-hpa
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