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hv: vE820: calculate SOS memory size by vE820 tables 

SOS's memory size could be calculated by its vE820 Tables 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 14:08:23 +08:00 committed by wenlingz
parent ad15053304
commit 901e8c869e
1 changed files with 8 additions and 5 deletions
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13
hypervisor/arch/x86/guest/ve820.c
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@ -86,11 +86,10 @@ static void filter_mem_from_sos_e820(struct acrn_vm *vm, uint64_t start_pa, uint
*/
void create_sos_vm_e820(struct acrn_vm *vm)
{
uint16_t vm_id;
uint16_t vm_id, i;
uint64_t hv_start_pa = hva2hpa((void *)(get_hv_image_base()));
uint64_t hv_end_pa = hv_start_pa + CONFIG_HV_RAM_SIZE;
uint32_t entries_count = get_e820_entries_count();
const struct mem_range *p_mem_range_info = get_mem_range_info();
struct acrn_vm_config *sos_vm_config = get_vm_config(vm->vm_id);
(void)memcpy_s((void *)sos_vm_e820, entries_count * sizeof(struct e820_entry),
@ -100,7 +99,6 @@ void create_sos_vm_e820(struct acrn_vm *vm)
vm->e820_entries = sos_vm_e820;
/* filter out hv memory from e820 table */
filter_mem_from_sos_e820(vm, hv_start_pa, hv_end_pa);
sos_vm_config->memory.size = p_mem_range_info->total_mem_size - CONFIG_HV_RAM_SIZE;
/* filter out prelaunched vm memory from e820 table */
for (vm_id = 0U; vm_id < CONFIG_MAX_VM_NUM; vm_id++) {
@ -109,16 +107,21 @@ void create_sos_vm_e820(struct acrn_vm *vm)
if (vm_config->load_order == PRE_LAUNCHED_VM) {
filter_mem_from_sos_e820(vm, vm_config->memory.start_hpa,
vm_config->memory.start_hpa + vm_config->memory.size);
sos_vm_config->memory.size -= vm_config->memory.size;
/* if HPA2 is available, filter it out as well*/
if (vm_config->memory.size_hpa2 != 0UL) {
filter_mem_from_sos_e820(vm, vm_config->memory.start_hpa2,
vm_config->memory.start_hpa2 + vm_config->memory.size_hpa2);
sos_vm_config->memory.size -= vm_config->memory.size_hpa2;
}
}
}
for (i = 0U; i < vm->e820_entry_num; i++) {
struct e820_entry *entry = &sos_vm_e820[i];
if ((entry->type == E820_TYPE_RAM)) {
sos_vm_config->memory.size += entry->length;
}
}
}
static const struct e820_entry pre_ve820_template[E820_MAX_ENTRIES] = {