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HV: improve e820 interfaces and their usages

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1. change its APIs as more indepentent, and modify the callers' code
2. limit its global variables as static, and return const to the callers
3. remove unused code in "CONFIG_CMA"

Tracked-On: #1842
Signed-off-by: Minggui Cao <minggui.cao@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Minggui Cao
2018-12-07 16:49:05 +08:00
committed by wenlingz
parent b69d24b1d4
commit 9b58b9d11d
8 changed files with 93 additions and 93 deletions
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20
hypervisor/include/arch/x86/e820.h
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@@ -12,17 +12,27 @@ struct e820_mem_params {
uint64_t max_ram_blk_size;
};
/* HV read multiboot header to get e820 entries info and calc total RAM info */
void init_e820(void);
void obtain_e820_mem_info(void);
/* before boot vm0(service OS), call it to hide the HV RAM entry in e820 table from vm0 */
void rebuild_vm0_e820(void);
/* get some RAM below 1MB in e820 entries, hide it from vm0, return its start address */
uint64_t e820_alloc_low_memory(uint32_t size_arg);
extern uint32_t e820_entries;
extern struct e820_entry e820[E820_MAX_ENTRIES];
extern struct e820_mem_params e820_mem;
/* copy the original e820 entries info to param_e820 */
uint32_t create_e820_table(struct e820_entry *param_e820);
/* get total number of the e820 entries */
uint32_t get_e820_entries_count(void);
/* get the e802 entiries */
const struct e820_entry *get_e820_entry(void);
/* get the e820 total memory info */
const struct e820_mem_params *get_e820_mem_info(void);
#ifdef CONFIG_PARTITION_MODE
/*
* Default e820 mem map:

2
hypervisor/include/arch/x86/guest/guest.h
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@@ -70,7 +70,7 @@
#define LDTR_AR (0x0082U) /* LDT, type must be 2, refer to SDM Vol3 26.3.1.2 */
#define TR_AR (0x008bU) /* TSS (busy), refer to SDM Vol3 26.3.1.2 */
int prepare_vm0_memmap_and_e820(struct acrn_vm *vm);
int prepare_vm0_memmap(struct acrn_vm *vm);
/* Definition for a mem map lookup */
struct vm_lu_mem_map {
struct list_head list; /* EPT mem map lookup list*/