commit 4cb15243f873fcc8c0e6a62bbe052a247bf0039a
author Thibaut Pérami <thibautp@google.com> Wed May 17 12:05:32 2023 +0000
committer Thibaut Pérami <thibautp@google.com> Wed Jun 14 15:15:59 2023 +0000
tree 5523ff7b4f84a71258d3fa21fc195be9c1fb6301
parent 5f309ebefdf0b96cc3cbad0de4ba5c125df021f9

[Debug] Add kcov options support to kcov tester

Change-Id: I9cbd7caa9a1ab1ae7b7fc5303236a5e4a545aab1

hyp_kcov_test/hyp_kcov.c

diff --git a/hyp_kcov_test/hyp_kcov.c b/hyp_kcov_test/hyp_kcov.c
index 53acaf7..d87b894 100644
--- a/hyp_kcov_test/hyp_kcov.c
+++ b/hyp_kcov_test/hyp_kcov.c
@@ -20,6 +20,8 @@
 
 #define KCOV_TRACE_PC  0
 #define KCOV_TRACE_CMP 1
+#define KCOV_ENABLE_HYP (0x1ull << 48)
+#define KCOV_ENABLE_HYP_ONLY (0x1ull << 49)
 
 struct kcov_meta_buffer {
 	unsigned long num_entries;
@@ -80,13 +82,10 @@ int main(int argc, char **argv)
 		perror("mmap"), exit(1);
 	printf("Mmaped buffer\n");
 
-	if (ioctl(kcov_fd, KCOV_ENABLE, KCOV_TRACE_PC))
-		perror("ioctl"), exit(1);
-	printf("KCOV enabled\n");
-
-	if (ioctl(kcov_fd, KCOV_ENABLE, KCOV_TRACE_PC))
-		perror("ioctl"), exit(1);
-	printf("KCOV enabled2\n");
+	if (ioctl(kcov_fd, KCOV_ENABLE, KCOV_TRACE_PC | KCOV_ENABLE_HYP | KCOV_ENABLE_HYP_ONLY))
+	/* if (ioctl(kcov_fd, KCOV_ENABLE, KCOV_TRACE_PC)) */
+			perror("ioctl"), exit(1);
+	/* printf("KCOV enabled\n"); */
 
 	/* kvm_fd = open("/dev/kvm", O_RDWR); */