* [LTP] [PATCH] cve/meltdown.c: abort the test if kallsyms was not enabled
@ 2019-06-28 9:37 Po-Hsu Lin
2019-07-01 7:00 ` Jan Stancek
0 siblings, 1 reply; 2+ messages in thread
From: Po-Hsu Lin @ 2019-06-28 9:37 UTC (permalink / raw)
To: ltp
The cve-2017-5754 meltdown test does not work with a kernel that does
not have CONFIG_KALLSYMS enabled (e.g. Ubuntu KVM kernel).
Add and extra check for /proc/kallsyms to determine if we can run it.
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
---
testcases/cve/meltdown.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/testcases/cve/meltdown.c b/testcases/cve/meltdown.c
index 1a3303ec0..f78c38b80 100644
--- a/testcases/cve/meltdown.c
+++ b/testcases/cve/meltdown.c
@@ -269,6 +269,9 @@ find_kernel_symbol(const char *name)
struct utsname utsname;
unsigned long addr;
+ if (access("/proc/kallsyms", F_OK) == -1)
+ tst_brk(TCONF, "/proc/kallsyms not enabled");
+
addr = find_symbol_in_file("/proc/kallsyms", name);
if (addr)
return addr;
--
2.17.1
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2019-06-28 9:37 [LTP] [PATCH] cve/meltdown.c: abort the test if kallsyms was not enabled Po-Hsu Lin
2019-07-01 7:00 ` Jan Stancek
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