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authorPatrick Rudolph <patrick.rudolph@9elements.com>2018-02-02 15:07:09 +0100
committerPhilipp Deppenwiese <zaolin.daisuki@gmail.com>2018-04-16 22:27:26 +0000
commitad4ddfcfdbf634d2ba4746d92cfd11854f87417a (patch)
treec541fb1bfbc990bac5577b4937f9a22ef58062ce /util
parent405d2eabe075444c77df2d9c7949c1125c120ce3 (diff)
downloadcoreboot-ad4ddfcfdbf634d2ba4746d92cfd11854f87417a.tar.xz
util/intelmetool: Add additional helpful error messages
Add more verbose error message for common problems on modern operating systems, like Secure Boot and CONFIG_STRICT_DEVMEM. Change-Id: Ie3361910d48271bcc2cd3b4b74937fbc5df0a176 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/25401 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Diffstat (limited to 'util')
-rw-r--r--util/intelmetool/intelmetool.c3
-rw-r--r--util/intelmetool/rcba.c6
2 files changed, 6 insertions, 3 deletions
diff --git a/util/intelmetool/intelmetool.c b/util/intelmetool/intelmetool.c
index ae36fc58fc..5981e9ddbd 100644
--- a/util/intelmetool/intelmetool.c
+++ b/util/intelmetool/intelmetool.c
@@ -491,7 +491,8 @@ int main(int argc, char *argv[])
#ifndef __DARWIN__
fd_mem = open("/dev/mem", O_RDWR);
if (fd_mem < 0) {
- perror("Can not open /dev/mem");
+ perror("Can not open /dev/mem. Do you have disabled "
+ "Secure Boot ?");
exit(1);
}
diff --git a/util/intelmetool/rcba.c b/util/intelmetool/rcba.c
index c138e89fd3..ee43e65ce0 100644
--- a/util/intelmetool/rcba.c
+++ b/util/intelmetool/rcba.c
@@ -68,7 +68,8 @@ int write_rcba32(uint32_t addr, uint32_t val)
rcba = map_physical((off_t)rcba_phys, size);
if (rcba == NULL) {
- printf("Could not map RCBA\n");
+ printf("Could not map RCBA\n"
+ "Do you have cmdline argument 'iomem=relaxed' set ?\n");
return 1;
}
*(uint32_t *)(rcba + addr) = val;
@@ -93,7 +94,8 @@ int read_rcba32(uint32_t addr, uint32_t *val)
rcba = map_physical((off_t)rcba_phys, size);
if (rcba == NULL) {
- printf("Could not map RCBA\n");
+ printf("Could not map RCBA\n"
+ "Do you have cmdline argument 'iomem=relaxed' set ?\n");
return 1;
}