-jasonzhao
> -----Original Message----- > From: Kevin O'Connor [mailto:[email protected]] > Sent: Thursday, February 05, 2009 9:37 PM > To: Jason Zhao > Cc: [email protected] > Subject: Re: [coreboot] FW: Two test result(linux+2G-RAM>10minutes andinstall > ubuntu8.10) of vx800 patch > > On Thu, Feb 05, 2009 at 11:33:02AM +0800, [email protected] wrote: > > My VX800 bug of "boot linux with 2G mem >10 minutes" has been proved to > > be the problem of MTRR setting. Thanks for Carldani, Rudolf and Bari. > > 1 The root cause is: > > 1) The free memory I report to coreboot through ram_resource is [0, > > 1983M=2G-64M(Framebuffer)-1M(TOP 1M SM Memory)]. If I report [0, > > 1984M=2G-64M(Framebuffer)], then all is OK. > > Is "SM Memory" the memory used by System Management Mode? Shouldn't I think it is. (I do not use System Management Mode in my vx800/coreboot-v2) > this memory be cached anyway? I ask my colleague who work for EFI. He said in his EFI project, SMM area should not be cached, and he had tried to cache that area, but cause system crashed. I don't know if he is right, since I can not find any reason why SMM area should not be cached. > -Kevin -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
