| To: | linux-mips@linux-mips.org |
|---|---|
| Subject: | what will be caused by setting TLB's virtual address part to unmapped address? |
| From: | "Bin Chen" <binary.chen@gmail.com> |
| Date: | Mon, 24 Apr 2006 23:14:01 +0800 |
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| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| Sender: | linux-mips-bounce@linux-mips.org |
|
Hi, In MIPS64, the 0xFFFFFFFF80000000 is a kernel unmapped area, what will be caused by setting up a TLB entry with the virtual address be 0xFFFFFFFF80000000? I ask this question because I noticed u-boot's TLB init code use the address from 0xFFFFFFFF80000000 to fill in the blank tlb, but I don't know the purpose of this operation. Thanks in advance. B.C |
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