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sandbox: vm: add temporary vm_virt_to_phys() implementation

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This commit is contained in:
max 🍓
2023-02-02 21:06:04 +00:00
parent 90dd51008f
commit c47da5864c
3 changed files with 17 additions and 3 deletions
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6
sandbox/base/memory_test.c
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@@ -41,7 +41,7 @@ static struct mem_map_region mem_map[] = {
{ .base = 0x00800000, .limit = MB_TO_BYTES(MEMORY_SIZE_MB) - 1, .status = REGION_FREE },
};
extern void tmp_set_vaddr_base(void *);
extern void tmp_set_vaddr_base(void *, size_t);
/* virtual address of where system memory is mapped */
static void *system_memory = NULL;
@@ -110,7 +110,9 @@ int memory_test(void)
}
}
tmp_set_vaddr_base(system_memory);
printf("virtual memory range: 0x%" PRIxPTR "-0x%" PRIxPTR "\n", (uintptr_t)system_memory, (uintptr_t)system_memory + MB_TO_BYTES(MEMORY_SIZE_MB));
tmp_set_vaddr_base(system_memory, MB_TO_BYTES(MEMORY_SIZE_MB));
memblock_add(pmem_base, pmem_limit + 1);
for (size_t i = 0; i < nr_mem_map_entries; i++) {

2
sandbox/vm/include/socks/vm.h
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@@ -199,6 +199,8 @@ extern kern_status_t vm_bootstrap(const vm_zone_descriptor_t *zones, size_t nr_z
extern vm_pg_data_t *vm_pg_data_get(vm_node_id_t node);
extern phys_addr_t vm_virt_to_phys(void *p);
extern void vm_page_init_array();
extern vm_page_t *vm_page_get(phys_addr_t addr);
extern phys_addr_t vm_page_get_paddr(vm_page_t *pg);

12
sandbox/vm/page.c
View File

@@ -2,6 +2,7 @@
#include <socks/memblock.h>
#include <socks/vm.h>
#include <string.h>
#include <assert.h>
#include <stdio.h>
/* array of pages, one for each physical page frame present in RAM */
@@ -41,9 +42,18 @@ static size_t page_order_bytes[] = {
/* temporary */
static void *tmp_vaddr_base = NULL;
void tmp_set_vaddr_base(void *p)
static size_t tmp_vaddr_len = 0;
void tmp_set_vaddr_base(void *p, size_t len)
{
tmp_vaddr_base = p;
tmp_vaddr_len = len;
}
phys_addr_t vm_virt_to_phys(void *p)
{
phys_addr_t x = (phys_addr_t)p - (phys_addr_t)tmp_vaddr_base;
assert(x < tmp_vaddr_len);
return x;
}
void vm_page_init_array()