socsvn commit: r288193 - soc2015/mihai/bhyve-on-arm-head/usr.sbin/bhyveloadarm
mihai at FreeBSD.org
mihai at FreeBSD.org
Fri Jul 10 17:19:23 UTC 2015
Author: mihai
Date: Fri Jul 10 17:19:22 2015
New Revision: 288193
URL: http://svnweb.FreeBSD.org/socsvn/?view=rev&rev=288193
Log:
soc2015: mihai: bhyve: usr.sbin: bhyveloadarm: fix mmap bug - map ony readonly the file
Modified:
soc2015/mihai/bhyve-on-arm-head/usr.sbin/bhyveloadarm/bhyveloadarm.c
Modified: soc2015/mihai/bhyve-on-arm-head/usr.sbin/bhyveloadarm/bhyveloadarm.c
==============================================================================
--- soc2015/mihai/bhyve-on-arm-head/usr.sbin/bhyveloadarm/bhyveloadarm.c Fri Jul 10 16:05:24 2015 (r288192)
+++ soc2015/mihai/bhyve-on-arm-head/usr.sbin/bhyveloadarm/bhyveloadarm.c Fri Jul 10 17:19:22 2015 (r288193)
@@ -41,7 +41,6 @@
guest_copyin(const void *from, uint64_t to, size_t size)
{
char *ptr;
-
ptr = vm_map_gpa(ctx, to, size);
if (ptr == NULL)
return (EFAULT);
@@ -96,12 +95,14 @@
char kernel_image_name[KERNEL_IMAGE_NAME_LEN];
struct stat st;
void *addr;
+ char test[4];
progname = basename(argv[0]);
mem_size = 128 * MB;
kernel_load_address = 0xc0000000;
memory_base_address = 0xc0000000;
+ strncpy(kernel_image_name, "wfi.out", KERNEL_IMAGE_NAME_LEN);
while ((opt = getopt(argc, argv, "k:l:b:m:")) != -1) {
switch (opt) {
@@ -154,20 +155,23 @@
exit(1);
}
-
error = fstat(kernel_image_fd, &st);
if (error) {
perror("fstat");
exit(1);
}
- addr = mmap(NULL, st.st_size, PROT_READ | PROT_WRITE, MAP_SHARED, kernel_image_fd, 0);
- if (!addr) {
+ addr = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, kernel_image_fd, 0);
+ if (addr == MAP_FAILED) {
perror("mmap kernel_image_fd");
exit(1);
}
- guest_copyin(addr, kernel_load_address, st.st_size);
+ if (guest_copyin(addr, kernel_load_address - memory_base_address, st.st_size)) {
+ perror("guest_copyin");
+ exit(1);
+ }
+
munmap(addr, st.st_size);
guest_setreg(VM_REG_GUEST_PC, kernel_load_address);
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