[dpdk-dev,v3,59/68] eal: add secondary process init with memory hotplug
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Commit Message
Secondary initialization will just sync memory map with
primary process.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
---
Notes:
v3:
- Improved handling of EAL hugepage info
lib/librte_eal/common/eal_common_memory.c | 1 +
lib/librte_eal/linuxapp/eal/eal_memory.c | 18 +++++++++++++++---
2 files changed, 16 insertions(+), 3 deletions(-)
@@ -20,6 +20,7 @@
#include <rte_errno.h>
#include <rte_log.h>
+#include "eal_memalloc.h"
#include "eal_private.h"
#include "eal_internal_cfg.h"
@@ -1776,6 +1776,18 @@ eal_legacy_hugepage_attach(void)
return -1;
}
+static int
+eal_hugepage_attach(void)
+{
+ if (eal_memalloc_sync_with_primary()) {
+ RTE_LOG(ERR, EAL, "Could not map memory from primary process\n");
+ if (aslr_enabled() > 0)
+ RTE_LOG(ERR, EAL, "It is recommended to disable ASLR in the kernel and retry running both primary and secondary processes\n");
+ return -1;
+ }
+ return 0;
+}
+
int
rte_eal_hugepage_init(void)
{
@@ -1787,9 +1799,9 @@ rte_eal_hugepage_init(void)
int
rte_eal_hugepage_attach(void)
{
- if (internal_config.legacy_mem)
- return eal_legacy_hugepage_attach();
- return -1;
+ return internal_config.legacy_mem ?
+ eal_legacy_hugepage_attach() :
+ eal_hugepage_attach();
}
int