[PATCH v1 7/8] kho: test: support read-only KHO mode in test_kho

[sashiko-bot at kernel.org]

> Allow CONFIG_TEST_KEXEC_HANDOVER to be enabled with
> CONFIG_KEXEC_HANDOVER_READONLY and update test_kho to verify preserved
> state when booted in read-only KHO mode.
> 
> In read-only mode, test_kho retrieves the test FDT subtree, maps the FDT
> folio via kho_ro_map_folio(..., PAGE_KERNEL_RO), restores the preserved
> vmalloc folio descriptor array via kho_restore_vmalloc(), verifies each
> folio's preserved order in the KHO radix tree via
> kho_ro_lookup_folio_order(), maps each folio via kho_ro_map_folio() (and
> unmaps via kho_ro_unmap()), and verifies the checksum over all preserved
> pages.
> 
> Signed-off-by: Pasha Tatashin <pasha.tatashin at soleen.com>

Sashiko has reviewed this patch and found no issues.

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Sashiko AI review · https://sashiko.dev/#/patchset/20261019021111.990394-1-pasha.tatashin@soleen.com?part=7