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[Qemu-devel] [RFC] support more than 2 execution modes

From: J. Mayer
Subject: [Qemu-devel] [RFC] support more than 2 execution modes
Date: Mon, 26 Mar 2007 09:00:11 +0200

It appears that some targets may need more than the 2 "standard"
execution modes.
For example, PowerPC 64 has 3 execution modes: hypervisor, supervisor
and problem state.
Another example is alpha which has 4 execution modes (even if Linux
seems to use only two of them).

My proposal is to increase the number of the tlb_tables entries in a way
that would be selected at compile time in order to keep good
performances for other emulated targets that do not need this feature.

You'll find attached a short patch implementing it. With this patch, one
would just have to properly define CPU_MEM_INDEX and is_user flags for
those targets.

Please comment.

J. Mayer <address@hidden>
Never organized

Attachment: qemu_mmumodes.diff
Description: Text Data

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