#include "v3_ctrl.h"
+// set to zero to ignore, or set
+// to a level likely given the largest contiguous
+// page allocation outside of the base regions
+// note that the seed pools provide 2-4 MB chunks
+// to start
+#define PALACIOS_MIN_ALLOC (64*4096)
#define SYS_PATH "/sys/devices/system/memory/"
}
if (op==ADD) {
- mem_size_bytes = atoll(argv[optind]) * (1024 * 1024);
+ mem_size_bytes = (unsigned long long) (atof(argv[optind]) * (1024 * 1024));
- if (mem_size_bytes > palacios_runtime_mem_block_size) {
- EPRINTF("Trying to add a larger single chunk of memory than Palacios can manage\n"
+ if (mem_size_bytes < palacios_runtime_mem_block_size ||
+ (PALACIOS_MIN_ALLOC!=0 && mem_size_bytes < PALACIOS_MIN_ALLOC)) {
+ EPRINTF("Trying to add a smaller single chunk of memory than Palacios needs\n"
"Your request: %llu bytes\n"
"Palacios run-time memory block size: %llu bytes\n",
- mem_size_bytes, palacios_runtime_mem_block_size);
+ "Palacios minimal contiguous alloc: %llu bytes\n",
+ mem_size_bytes, palacios_runtime_mem_block_size,
+ PALACIOS_MIN_ALLOC);
return -1;
}
- if (mem_size_bytes < palacios_runtime_mem_block_size) {
- EPRINTF("Trying to add a smaller single chunk of memory than Palacios can manage\n"
- "Your request: %llu bytes\n"
- "Palacios run-time memory block size: %llu bytes\n",
- mem_size_bytes, palacios_runtime_mem_block_size);
- return -1;
- }
-
if (request && mem_size_bytes > kernel_max_page_alloc_bytes) {
EPRINTF("Trying to request a larger single chunk of memory than the kernel can allocate\n"
"Your request: %llu bytes\n"