#include <vlib/pci/pci.h>
#include <vlib/linux/vfio.h>
+#if defined(__x86_64__) && !defined(CLIB_SANITIZE_ADDR)
+/* we keep physmem in low 38 bits of VA address space as some
+ IOMMU implamentation cannot map above that range */
+#define VLIB_PHYSMEM_DEFAULT_BASE_ADDDR (1ULL << 36)
+#else
+/* let kernel decide */
+#define VLIB_PHYSMEM_DEFAULT_BASE_ADDDR 0
+#endif
+
clib_error_t *
vlib_physmem_shared_map_create (vlib_main_t * vm, char *name, uword size,
u32 log2_page_sz, u32 numa_node,
map->fd = a->fd;
map->n_pages = a->n_pages * a->subpages_per_page;
map->log2_page_size = a->log2_subpage_sz;
+ map->numa_node = a->numa_node;
for (i = 0; i < a->n_pages; i++)
{
CLIB_CACHE_LINE_BYTES);
memset (p, 0, sizeof (clib_pmalloc_main_t));
vpm->pmalloc_main = (clib_pmalloc_main_t *) p;
- clib_pmalloc_init (vpm->pmalloc_main, 0);
+
+ if (vpm->base_addr == 0)
+ vpm->base_addr = VLIB_PHYSMEM_DEFAULT_BASE_ADDDR;
+
+ clib_pmalloc_init (vpm->pmalloc_main, vpm->base_addr, vpm->max_size);
+
+ /* update base_addr and max_size per actual allocation */
+ vpm->base_addr = (uword) vpm->pmalloc_main->base;
+ vpm->max_size = (uword) vpm->pmalloc_main->max_pages <<
+ vpm->pmalloc_main->def_log2_page_sz;
return error;
}
};
/* *INDENT-ON* */
+static clib_error_t *
+vlib_physmem_config (vlib_main_t * vm, unformat_input_t * input)
+{
+ vlib_physmem_main_t *vpm = &vm->physmem_main;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "base-addr 0x%lx", &vpm->base_addr))
+ ;
+ else if (unformat (input, "max-size %U",
+ unformat_memory_size, &vpm->max_size))
+ ;
+ else
+ return unformat_parse_error (input);
+ }
+
+ unformat_free (input);
+ return 0;
+}
+
+VLIB_EARLY_CONFIG_FUNCTION (vlib_physmem_config, "physmem");
+
/*
* fd.io coding-style-patch-verification: ON
*