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a99e07ee5e
- check that user TLB mappings correspond to the current page table; - check that TLB mapping VPN is in the kernel/user address range in accordance with its ASID. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
menu "Kernel hacking"
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source "lib/Kconfig.debug"
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config DEBUG_TLB_SANITY
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bool "Debug TLB sanity"
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depends on DEBUG_KERNEL
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help
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Enable this to turn on TLB sanity check on each entry to userspace.
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This check can spot missing TLB invalidation/wrong PTE permissions/
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premature page freeing.
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If unsure, say N.
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config LD_NO_RELAX
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bool "Disable linker relaxation"
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default n
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help
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Enable this function to disable link-time optimizations.
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The default linker behavior is to combine identical literal
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values to reduce code size and remove unnecessary overhead from
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assembler-generated 'longcall' sequences.
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Enabling this option improves the link time but increases the
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code size, and possibly execution time.
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config S32C1I_SELFTEST
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bool "Perform S32C1I instruction self-test at boot"
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default y
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help
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Enable this option to test S32C1I instruction behavior at boot.
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Correct operation of this instruction requires some cooperation from hardware
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external to the processor (such as bus bridge, bus fabric, or memory controller).
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It is easy to make wrong hardware configuration, this test should catch it early.
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Say 'N' on stable hardware.
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endmenu
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