atom feed3 messages in org.freebsd.freebsd-ia64TLB miss handlers
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Christian HildnerJan 28, 2005 3:54 am 
Espen SkoglundJan 28, 2005 4:24 am 
Doug RabsonJan 30, 2005 2:57 am 
Subject:TLB miss handlers
From:Espen Skoglund (es@ira.uka.de)
Date:Jan 28, 2005 4:24:02 am
List:org.freebsd.freebsd-ia64

[Christian Hildner]

Hi, ld8 r21=[r21] // check VHPT tag ^^^^^^^^^^ Are you sure you cannot enter a nested TLB miss fault here on IA64 implementations that do not have the VHPT walker implemented? You wouldn't get fault 0x0000 since there is no walker that throws that fault.

Er... I can't remember seeing anywhere that implementing the VHPT walker in the CPU is optional. Anyhow, I'd imagine that the VHPT is located in a place that is backed by a pinned TR. But I'm not really familiar with FreeBSD internals, so...

eSk