[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] libxc: Add xc_domain_hvm_get_mtrr_type() call
TBH until someone figures out or explains what overlap actually is I don't know if it even needs exporting or taking into account in userspace. http://www.mjmwired.net/kernel/Documentation/mtrr.txt "Creating overlapping MTRRs: %echo "base=0xfb000000 size=0x1000000 type=write-combining" >/proc/mtrr %echo "base=0xfb000000 size=0x1000 type=uncachable" >/proc/mtrr And the results: cat /proc/mtrr reg00: base=0x00000000 ( 0MB), size= 64MB: write-back, count=1 reg01: base=0xfb000000 (4016MB), size= 16MB: write-combining, count=1 reg02: base=0xfb000000 (4016MB), size= 4kB: uncachable, count=1"Overlapped MTRRs are MTRRs with the same base, but different types of addresses at different offsets. At least to my understanding. Thanks, Razvan Cojocaru _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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