CONFIG_XTENSA_LOAD_STORE: Load/store exception handler for memory only readable with l32

General informations

The Linux kernel configuration item CONFIG_XTENSA_LOAD_STORE:

• prompt: Load/store exception handler for memory only readable with l32
• type: bool
• depends on: (none)
• defined in arch/xtensa/Kconfig
• found in Linux kernels: 6.5–6.9

Help text

The Xtensa architecture only allows reading memory attached to its instruction bus with l32r and l32i instructions, all other instructions raise an exception with the LoadStoreErrorCause code. This makes it hard to use some configurations, e.g. store string literals in FLASH memory attached to the instruction bus.

Say Y here to enable exception handler that allows transparent byte and 2-byte access to memory attached to instruction bus.

Hardware

LKDDb

Raw data from LKDDb:

• (none)

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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