[ndctl PATCH 2/2] README.md: add CONFIG_s missing to pass CXL tests

[marc.herbert@linux.intel.com]

From: Marc Herbert <marc.herbert@linux.intel.com>

Found by trial and error. As of kernel v6.15, the CONFIG_s in this
version are enough to give to ./scripts/kconfig/merge_config.sh and pass
`meson test --suite=cxl`.

This fragment is being regularly tested in
https://github.com/pmem/run_qemu/actions with `make defconfig
ARCH=x86_64` as a starting point. This is admittedly incomplete test
coverage but still a massively better starting point for other ARCHs and
a time-saver. There's a good chance it's enough for other ARCHs too.

Link: https://lore.kernel.org/nvdimm/aed71134-1029-4b88-ab20-8dfa527a7438@linux.intel.com/
Signed-off-by: Marc Herbert <marc.herbert@linux.intel.com>
---
 README.md | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index a37991ccefa2..c4c499f803af 100644
--- a/README.md
+++ b/README.md
@@ -103,17 +103,26 @@ loaded.  To build and install nfit_test.ko:
    Obtain the CXL kernel source(optional).  For example,
    `git clone -b pending git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl.git`
 
-   Enable CXL-related kernel configuration options.
+   Enable configuration options required by CXL tests:
    ```
    CONFIG_CXL_BUS=m
    CONFIG_CXL_PCI=m
    CONFIG_CXL_ACPI=m
+   CONFIG_LIBNVDIMM=m
    CONFIG_CXL_PMEM=m
    CONFIG_CXL_MEM=m
    CONFIG_CXL_PORT=m
    CONFIG_CXL_REGION=y
    CONFIG_CXL_REGION_INVALIDATION_TEST=y
+   CONFIG_DAX=m
+   CONFIG_TRANSPARENT_HUGEPAGE=y
+   CONFIG_DEV_DAX=m
    CONFIG_DEV_DAX_CXL=m
+   CONFIG_MEMORY_HOTPLUG=y
+   CONFIG_MEMORY_HOTREMOVE=y
+   CONFIG_NVDIMM_SECURITY_TEST=y
+   CONFIG_ENCRYPTED_KEYS=y
+   CONFIG_NVDIMM_KEYS=y
    ```
 1. Install cxl_test and related mock modules.
    ```
-- 
2.49.0