@@ -64,6 +64,7 @@ enum {
#define SET_LSA 0x3
MEDIA_AND_POISON = 0x43,
#define GET_POISON_LIST 0x0
+ #define INJECT_POISON 0x1
};
struct cxl_cmd;
@@ -436,6 +437,43 @@ static CXLRetCode cmd_media_get_poison_list(struct cxl_cmd *cmd,
return CXL_MBOX_SUCCESS;
}
+static CXLRetCode cmd_media_inject_poison(struct cxl_cmd *cmd,
+ CXLDeviceState *cxl_dstate,
+ uint16_t *len)
+{
+ CXLType3Dev *ct3d = container_of(cxl_dstate, CXLType3Dev, cxl_dstate);
+ CXLPoisonList *poison_list = &ct3d->poison_list;
+ CXLPoison *ent;
+ struct inject_poison_pl {
+ uint64_t dpa;
+ };
+ struct inject_poison_pl *in = (void *)cmd->payload;
+ CXLPoison *p;
+
+ QLIST_FOREACH(ent, poison_list, node) {
+ if (ent->start == in->dpa && ent->length == 64) {
+ return CXL_MBOX_SUCCESS;
+ }
+ }
+
+ if (ct3d->poison_list_cnt == CXL_POISON_LIST_LIMIT) {
+ return CXL_MBOX_INJECT_POISON_LIMIT;
+ }
+ p = g_new0(CXLPoison, 1);
+
+ p->length = 64;
+ p->start = in->dpa;
+ p->type = CXL_POISON_TYPE_INJECTED;
+
+ /*
+ * Possible todo: Merge with existing entry if next to it and if same type
+ */
+ QLIST_INSERT_HEAD(poison_list, p, node);
+ ct3d->poison_list_cnt++;
+
+ return CXL_MBOX_SUCCESS;
+}
+
#define IMMEDIATE_CONFIG_CHANGE (1 << 1)
#define IMMEDIATE_DATA_CHANGE (1 << 2)
#define IMMEDIATE_POLICY_CHANGE (1 << 3)
@@ -465,6 +503,8 @@ static struct cxl_cmd cxl_cmd_set[256][256] = {
~0, IMMEDIATE_CONFIG_CHANGE | IMMEDIATE_DATA_CHANGE },
[MEDIA_AND_POISON][GET_POISON_LIST] = { "MEDIA_AND_POISON_GET_POISON_LIST",
cmd_media_get_poison_list, 16, 0 },
+ [MEDIA_AND_POISON][INJECT_POISON] = { "MEDIA_AND_POISON_INJECT_POISON",
+ cmd_media_inject_poison, 8, 0 },
};
void cxl_process_mailbox(CXLDeviceState *cxl_dstate)
Very simple implementation to allow testing of corresponding kernel code. Note that for now we track each 64 byte section independently. Whilst a valid implementation choice, it may make sense to fuse entries so as to prove out more complex corners of the kernel code. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> --- hw/cxl/cxl-mailbox-utils.c | 40 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+)