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feat(versal-net): add cluster check in handoff parameters

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Versal NET platform supports multiple cpu clusters and the cluster
information for every partition contaning firmware component
is being passed by PLM through handoff parameters to TF-A.

Function implementation for getting cluster value for the firmware
component partition in TF-A and check for the firmware component
being targeted to be executed on Cluster 0.

Signed-off-by: Akshay Belsare <akshay.belsare@amd.com>
Change-Id: I8622699e12b0a9cda83ae46e2ad0a038ca377fda
This commit is contained in:
Akshay Belsare 2023-06-15 16:48:46 +05:30
parent a36ac40c4e
commit 01c8c6a554
1 changed files with 37 additions and 0 deletions
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37
plat/xilinx/common/plat_startup.c
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@ -23,6 +23,10 @@
* secure (TZ) 2 0 -> Non secure, 1 -> secure
* EL 3:4 00 -> EL0, 01 -> EL1, 10 -> EL2, 11 -> EL3
* CPU# 5:6 00 -> A53_0, 01 -> A53_1, 10 -> A53_2, 11 -> A53_3
* Reserved 7:10 Reserved
* Cluster# 11:12 00 -> Cluster 0, 01 -> Cluster 1, 10 -> Cluster 2,
* 11 -> Cluster (Applicable for Versal NET only).
* Reserved 13:16 Reserved
*/
#define XBL_FLAGS_ESTATE_SHIFT 0U
@ -54,6 +58,13 @@
#define XBL_FLAGS_A53_2 2U
#define XBL_FLAGS_A53_3 3U
#if defined(PLAT_versal_net)
#define XBL_FLAGS_CLUSTER_SHIFT 11U
#define XBL_FLAGS_CLUSTER_MASK GENMASK(11, 12)
#define XBL_FLAGS_CLUSTER_0 0U
#endif /* PLAT_versal_net */
/**
* get_xbl_cpu() - Get the target CPU for partition.
* @partition: Pointer to partition struct.
@ -130,6 +141,21 @@ static int32_t get_xbl_estate(const struct xbl_partition *partition)
return flags >> XBL_FLAGS_ESTATE_SHIFT;
}
#if defined(PLAT_versal_net)
/**
* get_xbl_cluster - Get the cluster number
* @partition: pointer to the partition structure.
*
* Return: cluster number for the partition.
*/
static int32_t get_xbl_cluster(const struct xbl_partition *partition)
{
uint64_t flags = partition->flags & XBL_FLAGS_CLUSTER_MASK;
return (int32_t)(flags >> XBL_FLAGS_CLUSTER_SHIFT);
}
#endif /* PLAT_versal_net */
/**
* xbl_tfa_handover() - Populates the bl32 and bl33 image info structures.
* @bl32: BL32 image info structure.
@ -185,6 +211,17 @@ enum xbl_handoff xbl_handover(entry_point_info_t *bl32,
HandoffParams->partition[i].entry_point,
HandoffParams->partition[i].flags);
#if defined(PLAT_versal_net)
uint32_t target_cluster;
target_cluster = get_xbl_cluster(&HandoffParams->partition[i]);
if (target_cluster != XBL_FLAGS_CLUSTER_0) {
WARN("BL31: invalid target Cluster (%i)\n",
target_cluster);
continue;
}
#endif /* PLAT_versal_net */
target_cpu = get_xbl_cpu(&HandoffParams->partition[i]);
if (target_cpu != XBL_FLAGS_A53_0) {
WARN("BL31: invalid target CPU (%i)\n", target_cpu);