diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2026-03-27 08:28:20 +0300 |
|---|---|---|
| committer | Dave Jiang <dave.jiang@intel.com> | 2026-04-01 18:12:18 +0300 |
| commit | 78b8f1a7a4ab39cecd926d50627db3537e0f2ee9 (patch) | |
| tree | 902e6cb765dafce59f99923722e3773383372692 /tools/testing | |
| parent | 059edcc405e46cc10ee65ab2c039aa6bccfbb3a0 (diff) | |
| download | linux-78b8f1a7a4ab39cecd926d50627db3537e0f2ee9.tar.xz | |
tools/testing/cxl: Simulate auto-assembly failure
Add a cxl_test module option to skip setting up one of the members of the
default auto-assembled region.
This simulates a device failing between firmware setup and OS boot, or
region configuration interrupted by an event like kexec.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://patch.msgid.link/20260327052821.440749-9-dan.j.williams@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/cxl/test/cxl.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c index 81e2aef3627a..7deeb7ff7bdf 100644 --- a/tools/testing/cxl/test/cxl.c +++ b/tools/testing/cxl/test/cxl.c @@ -16,6 +16,7 @@ static int interleave_arithmetic; static bool extended_linear_cache; +static bool fail_autoassemble; #define FAKE_QTG_ID 42 @@ -819,6 +820,12 @@ static void mock_init_hdm_decoder(struct cxl_decoder *cxld) return; } + /* Simulate missing cxl_mem.4 configuration */ + if (hb0 && pdev->id == 4 && cxld->id == 0 && fail_autoassemble) { + default_mock_decoder(cxld); + return; + } + base = window->base_hpa; if (extended_linear_cache) base += mock_auto_region_size; @@ -1620,6 +1627,8 @@ module_param(interleave_arithmetic, int, 0444); MODULE_PARM_DESC(interleave_arithmetic, "Modulo:0, XOR:1"); module_param(extended_linear_cache, bool, 0444); MODULE_PARM_DESC(extended_linear_cache, "Enable extended linear cache support"); +module_param(fail_autoassemble, bool, 0444); +MODULE_PARM_DESC(fail_autoassemble, "Simulate missing member of an auto-region"); module_init(cxl_test_init); module_exit(cxl_test_exit); MODULE_LICENSE("GPL v2"); |