Hi,all
I mentioned in previous email that I am trying to use the file system in the
tz_vmm demo and use the SD card as a storage device which is formatted as ext2.
Now I have included sd_card driver, part_blk, rump_fs etc. in the tz_vmm.run
script which I show it in [1]. But when I try to create a file in tz_vmm, I get
this error:
[init -> tz_vmm] --- start test ---
[init -> tz_vmm] current working directory : /
[init -> sd_card_drv] Error: wait till issuing a new command is allowed timed
out
I have no idea how to fix this problem, so I want to ask for your help. I also
provide my test code in [2].
In addition, I saw in this link:
https://sourceforge.net/p/genode/mailman/genode-main/thread/CABDqRrJei5p5JyM_p3Gc5xiX8pOZsMssdXOU_LDc4-QMGBDf8w%40mail.gmail.com/#msg34609867
, Martin said "Be aware, that you should not run 'sd_card' with Genodes
Trustzone feature-set (platform 'hw_imx53_qsb_tz'), because Genode will then
declare the ESDHC-IRQ to be unsecure to enable Linux to drive SD cards. Use the
platform 'hw_imx53_qsb' instead when issuing 'create_builddir'. I know he is
targeting genode 15.08, so I want to know how about this situation in Genode's
latest version? If genode can directly drive the SD card now , does this meas
the SD card can not accessed by linux because the ESDHC-IRQ is configured to be
secure ?
Thanks for your help in advance!
[1] part of tz_vmm.run script:
<start name="platform_drv">
<resource name="RAM" quantum="3M"/>
<provides>
<service name="Regulator"/>
<service name="Platform"/>
</provides>
</start>
<start name="sd_card_drv">
<resource name="RAM" quantum="3M"/>
<provides><service name="Block"/></provides>
</start>
<start name="part_blk">
<resource name="RAM" quantum="10M" />
<provides><service name="Block" /></provides>
<route>
<service name="Block"><child name="sd_card_drv"
/></service>
<any-service><parent/><any-child/></any-service>
</route>
<config>
<policy label_prefix="rump_fs" partition="1"
writeable="yes"/>
</config>
</start>
<start name="rump_fs" caps="200">
<resource name="RAM" quantum="16M"/>
<provides><service name="File_system"/></provides>
<config fs="ext2fs">
<policy label_prefix="" root="/" writeable="yes"/>
</config>
<route>
<service name="Block"> <child name="part_blk"/> </service>
<any-service> <parent/> <any-child/> </any-service>
</route>
</start>
<start name="tz_vmm" caps="400">
<resource name="RAM" quantum="160M"/>
<config>
<vfs>
<tar name="darknet.tar"/>
<dir name="dev">
<log/>
<inline name="rtc">2000-01-01 00:00</inline>
</dir>
<fs/>
</vfs>
<libc stdout="/dev/log" stderr="/dev/log" rtc="/dev/rtc" />
</config>
[2] test code:
int fd;
ssize_t n;
off_t offset;
static char buf[16384];
static char str[] = "hello,world!";
printf("--- start test ---\n");
getcwd(buf, sizeof(buf));
printf("current working directory : %s\n", buf);
fd = open("file.txt",O_WRONLY|O_CREAT);
if (fd == -1) {
perror("open");
return;
}
n = write(fd, str, sizeof (str));
printf("write %d bytes.\n",n);
close(fd);
printf("--- test finished ---\n");
------------------
Best wishes_______________________________________________
Genode users mailing list
[email protected]
https://lists.genode.org/listinfo/users
