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hv: e820: remove get_mem_range_info

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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>
This commit is contained in:
Li Fei1 2021-03-05 14:16:48 +08:00 committed by wenlingz
parent 3a465388d4
commit 41e2d40d1f
2 changed files with 0 additions and 40 deletions
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37
hypervisor/arch/x86/e820.c
View File

@ -21,37 +21,9 @@
static uint32_t hv_e820_entries_nr; static uint32_t hv_e820_entries_nr;
/* Describe the memory layout the hypervisor uses */ /* Describe the memory layout the hypervisor uses */
static struct e820_entry hv_e820[E820_MAX_ENTRIES]; static struct e820_entry hv_e820[E820_MAX_ENTRIES];
/* Describe the top/bottom/size of the physical memory the hypervisor manages */
static struct mem_range hv_mem_range;
#define DBG_LEVEL_E820 6U #define DBG_LEVEL_E820 6U
static void obtain_mem_range_info(void)
{
uint32_t i;
struct e820_entry *entry;
hv_mem_range.mem_bottom = UINT64_MAX;
hv_mem_range.mem_top = 0x0UL;
hv_mem_range.total_mem_size = 0UL;
for (i = 0U; i < hv_e820_entries_nr; i++) {
entry = &hv_e820[i];
if (hv_mem_range.mem_bottom > entry->baseaddr) {
hv_mem_range.mem_bottom = entry->baseaddr;
}
if ((entry->baseaddr + entry->length) > hv_mem_range.mem_top) {
hv_mem_range.mem_top = entry->baseaddr + entry->length;
}
if (entry->type == E820_TYPE_RAM) {
hv_mem_range.total_mem_size += entry->length;
}
}
}
/* /*
* @brief reserve some RAM, hide it from sos_vm, return its start address * @brief reserve some RAM, hide it from sos_vm, return its start address
* @param size_arg Amount of memory to be found and marked reserved * @param size_arg Amount of memory to be found and marked reserved
@ -82,7 +54,6 @@ uint64_t e820_alloc_memory(uint32_t size_arg, uint64_t max_addr)
/* found exact size of e820 entry */ /* found exact size of e820 entry */
if (length == size) { if (length == size) {
entry->type = E820_TYPE_RESERVED; entry->type = E820_TYPE_RESERVED;
hv_mem_range.total_mem_size -= size;
ret = start; ret = start;
} else { } else {
@ -102,7 +73,6 @@ uint64_t e820_alloc_memory(uint32_t size_arg, uint64_t max_addr)
new_entry->length = (entry->baseaddr + entry->length) - new_entry->baseaddr; new_entry->length = (entry->baseaddr + entry->length) - new_entry->baseaddr;
/* Shrink the existing entry and total available memory */ /* Shrink the existing entry and total available memory */
entry->length -= new_entry->length; entry->length -= new_entry->length;
hv_mem_range.total_mem_size -= new_entry->length;
hv_e820_entries_nr++; hv_e820_entries_nr++;
ret = new_entry->baseaddr; ret = new_entry->baseaddr;
@ -159,8 +129,6 @@ void init_e820(void)
dev_dbg(DBG_LEVEL_E820, "Base: 0x%016lx length: 0x%016lx\n", dev_dbg(DBG_LEVEL_E820, "Base: 0x%016lx length: 0x%016lx\n",
mmap[i].baseaddr, mmap[i].length); mmap[i].baseaddr, mmap[i].length);
} }
obtain_mem_range_info();
} }
uint32_t get_e820_entries_count(void) uint32_t get_e820_entries_count(void)
@ -172,8 +140,3 @@ const struct e820_entry *get_e820_entry(void)
{ {
return hv_e820; return hv_e820;
} }
const struct mem_range *get_mem_range_info(void)
{
return &hv_mem_range;
}

3
hypervisor/include/arch/x86/e820.h
View File

@ -44,7 +44,4 @@ uint32_t get_e820_entries_count(void);
/* get the e802 entiries */ /* get the e802 entiries */
const struct e820_entry *get_e820_entry(void); const struct e820_entry *get_e820_entry(void);
/* get the e820 total memory info */
const struct mem_range *get_mem_range_info(void);
#endif #endif