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dm: query and save image size during initial checking

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This is preparation for the upcoming High BIOS work.

Tracked-On: #1832
Signed-off-by: Peter Fang <peter.fang@intel.com>
Acked-by: Anthony Xu <anthony.xu@intel.com>
This commit is contained in:
Peter Fang
2018-12-12 01:34:30 -08:00
committed by wenlingz
parent a80f08ebad
commit 653a57958b
5 changed files with 77 additions and 34 deletions
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42
devicemodel/core/sw_load_bzimage.c
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@@ -97,8 +97,8 @@ static char ramdisk_path[STR_LEN];
static char kernel_path[STR_LEN];
static int with_ramdisk;
static int with_kernel;
static int ramdisk_size;
static int kernel_size;
static size_t ramdisk_size;
static size_t kernel_size;
static int
acrn_get_bzimage_setup_size(struct vmctx *ctx)
@@ -133,7 +133,7 @@ acrn_parse_kernel(char *arg)
if (len < STR_LEN) {
strncpy(kernel_path, arg, len + 1);
if (check_image(kernel_path) != 0){
if (check_image(kernel_path, 0, &kernel_size) != 0){
fprintf(stderr, "SW_LOAD: check_image failed for '%s'\n",
kernel_path);
exit(10); /* Non-zero */
@@ -154,7 +154,7 @@ acrn_parse_ramdisk(char *arg)
if (len < STR_LEN) {
strncpy(ramdisk_path, arg, len + 1);
if (check_image(ramdisk_path) != 0){
if (check_image(ramdisk_path, 0, &ramdisk_size) != 0){
fprintf(stderr, "SW_LOAD: check_image failed for '%s'\n",
ramdisk_path);
exit(11); /* Non-zero */
@@ -171,7 +171,8 @@ static int
acrn_prepare_ramdisk(struct vmctx *ctx)
{
FILE *fp;
int len, read;
long len;
size_t read;
fp = fopen(ramdisk_path, "r");
if (fp == NULL) {
@@ -182,26 +183,33 @@ acrn_prepare_ramdisk(struct vmctx *ctx)
fseek(fp, 0, SEEK_END);
len = ftell(fp);
if (len != ramdisk_size) {
fprintf(stderr,
"SW_LOAD ERR: ramdisk file changed\n");
fclose(fp);
return -1;
}
if (len > (BOOTARGS_LOAD_OFF(ctx) - RAMDISK_LOAD_OFF(ctx))) {
printf("SW_LOAD ERR: the size of ramdisk file is too big"
" file len=0x%x, limit is 0x%lx\n", len,
" file len=0x%lx, limit is 0x%lx\n", len,
BOOTARGS_LOAD_OFF(ctx) - RAMDISK_LOAD_OFF(ctx));
fclose(fp);
return -1;
}
ramdisk_size = len;
fseek(fp, 0, SEEK_SET);
read = fread(ctx->baseaddr + RAMDISK_LOAD_OFF(ctx),
sizeof(char), len, fp);
if (read < len) {
printf("SW_LOAD ERR: could not read the whole ramdisk file,"
" file len=%d, read %d\n", len, read);
" file len=%ld, read %lu\n", len, read);
fclose(fp);
return -1;
}
fclose(fp);
printf("SW_LOAD: ramdisk %s size %d copied to guest 0x%lx\n",
printf("SW_LOAD: ramdisk %s size %lu copied to guest 0x%lx\n",
ramdisk_path, ramdisk_size, RAMDISK_LOAD_OFF(ctx));
return 0;
@@ -211,7 +219,8 @@ static int
acrn_prepare_kernel(struct vmctx *ctx)
{
FILE *fp;
int len, read;
long len;
size_t read;
fp = fopen(kernel_path, "r");
if (fp == NULL) {
@@ -222,24 +231,31 @@ acrn_prepare_kernel(struct vmctx *ctx)
fseek(fp, 0, SEEK_END);
len = ftell(fp);
if (len != kernel_size) {
fprintf(stderr,
"SW_LOAD ERR: kernel file changed\n");
fclose(fp);
return -1;
}
if ((len + KERNEL_LOAD_OFF(ctx)) > RAMDISK_LOAD_OFF(ctx)) {
printf("SW_LOAD ERR: need big system memory to fit image\n");
fclose(fp);
return -1;
}
kernel_size = len;
fseek(fp, 0, SEEK_SET);
read = fread(ctx->baseaddr + KERNEL_LOAD_OFF(ctx),
sizeof(char), len, fp);
if (read < len) {
printf("SW_LOAD ERR: could not read the whole kernel file,"
" file len=%d, read %d\n", len, read);
" file len=%ld, read %lu\n", len, read);
fclose(fp);
return -1;
}
fclose(fp);
printf("SW_LOAD: kernel %s size %d copied to guest 0x%lx\n",
printf("SW_LOAD: kernel %s size %lu copied to guest 0x%lx\n",
kernel_path, kernel_size, KERNEL_LOAD_OFF(ctx));
return 0;