Differential D38312 Diff 116165 stand/kboot/arch/aarch64/load_addr.c

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stand/kboot/arch/aarch64/load_addr.c

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return true; /* We can get it the trampoline */		return true; /* We can get it the trampoline */

errout:		errout:
close(fd2);		close(fd2);
free(buf);		free(buf);
return false;		return false;
}		}

uint64_t commit_limit;
uint64_t committed_as;
uint64_t mem_avail;

bool		bool
enumerate_memory_arch(void)		enumerate_memory_arch(void)
{		{
int fd = -1;		int fd = -1;
char buf[128];
bool rv;		bool rv;

/*
* To properly size the slabs, we need to find how much memory we can
* commit to using. commit_limit is the max, while commited_as is the
* current total. We can use these later to allocate the largetst amount
* of memory possible so we can support larger ram disks than we could
* by using fixed segment sizes. We also grab the memory available so
* we don't use more than 49% of that.
*/
fd = open("host:/proc/meminfo", O_RDONLY);
if (fd != -1) {
while (fgetstr(buf, sizeof(buf), fd) > 0) {
if (strncmp(buf, "MemAvailable:", 13) == 0) {
mem_avail = strtoll(buf + 13, NULL, 0);
mem_avail <<= 10; /* Units are kB */
} else if (strncmp(buf, "CommitLimit:", 12) == 0) {
commit_limit = strtoll(buf + 13, NULL, 0);
commit_limit <<= 10; /* Units are kB */
} else if (strncmp(buf, "Committed_AS:", 13) == 0) {
committed_as = strtoll(buf + 14, NULL, 0);
committed_as <<= 10; /* Units are kB */
}
}
}
printf("Commit limit: %lld Committed bytes %lld Available %lld\n",
(long long)commit_limit, (long long)committed_as,
(long long)mem_avail);
close(fd);

fd = open("host:/sys/firmware/fdt", O_RDONLY);		fd = open("host:/sys/firmware/fdt", O_RDONLY);
if (fd != -1) {		if (fd != -1) {
rv = do_memory_from_fdt(fd);		rv = do_memory_from_fdt(fd);
close(fd);		close(fd);
if (rv)		if (rv)
printf("Found a physical memory for UEFI memory map\n");		printf("Found a physical memory for UEFI memory map\n");
/*		/*
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