hv: e820: remove get_mem_range_info
No one uses get_mem_range_info to get the top/bottom/size of the physical memory. We could get these informations by e820 table easily. Tracked-On: #5830 Signed-off-by: Li Fei1 <fei1.li@intel.com> Acked-by: eddie Dong <eddie.dong@intel.com>
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@ -21,37 +21,9 @@
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static uint32_t hv_e820_entries_nr;
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/* Describe the memory layout the hypervisor uses */
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static struct e820_entry hv_e820[E820_MAX_ENTRIES];
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/* Describe the top/bottom/size of the physical memory the hypervisor manages */
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static struct mem_range hv_mem_range;
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#define DBG_LEVEL_E820 6U
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static void obtain_mem_range_info(void)
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{
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uint32_t i;
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struct e820_entry *entry;
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hv_mem_range.mem_bottom = UINT64_MAX;
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hv_mem_range.mem_top = 0x0UL;
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hv_mem_range.total_mem_size = 0UL;
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for (i = 0U; i < hv_e820_entries_nr; i++) {
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entry = &hv_e820[i];
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if (hv_mem_range.mem_bottom > entry->baseaddr) {
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hv_mem_range.mem_bottom = entry->baseaddr;
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}
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if ((entry->baseaddr + entry->length) > hv_mem_range.mem_top) {
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hv_mem_range.mem_top = entry->baseaddr + entry->length;
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}
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if (entry->type == E820_TYPE_RAM) {
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hv_mem_range.total_mem_size += entry->length;
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}
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}
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}
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/*
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* @brief reserve some RAM, hide it from sos_vm, return its start address
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* @param size_arg Amount of memory to be found and marked reserved
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@ -82,7 +54,6 @@ uint64_t e820_alloc_memory(uint32_t size_arg, uint64_t max_addr)
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/* found exact size of e820 entry */
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if (length == size) {
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entry->type = E820_TYPE_RESERVED;
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hv_mem_range.total_mem_size -= size;
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ret = start;
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} else {
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@ -102,7 +73,6 @@ uint64_t e820_alloc_memory(uint32_t size_arg, uint64_t max_addr)
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new_entry->length = (entry->baseaddr + entry->length) - new_entry->baseaddr;
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/* Shrink the existing entry and total available memory */
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entry->length -= new_entry->length;
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hv_mem_range.total_mem_size -= new_entry->length;
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hv_e820_entries_nr++;
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ret = new_entry->baseaddr;
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@ -159,8 +129,6 @@ void init_e820(void)
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dev_dbg(DBG_LEVEL_E820, "Base: 0x%016lx length: 0x%016lx\n",
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mmap[i].baseaddr, mmap[i].length);
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}
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obtain_mem_range_info();
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}
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uint32_t get_e820_entries_count(void)
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@ -172,8 +140,3 @@ const struct e820_entry *get_e820_entry(void)
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{
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return hv_e820;
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}
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const struct mem_range *get_mem_range_info(void)
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{
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return &hv_mem_range;
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}
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@ -44,7 +44,4 @@ uint32_t get_e820_entries_count(void);
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/* get the e802 entiries */
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const struct e820_entry *get_e820_entry(void);
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/* get the e820 total memory info */
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const struct mem_range *get_mem_range_info(void);
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#endif
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