[PATCH v2 4/5] KVM: arm64: selftests: get-reg-list: Remove get-reg-list-sve

[Andrew Jones <drjones@xxxxxxxxxx>]

Now that we can easily run the test for multiple vcpu configs, let's
merge get-reg-list and get-reg-list-sve into just get-reg-list. We
also add a final change to make it more possible to run multiple
tests, which is to fork the test, rather than directly run it. That
allows a test to fail, but subsequent tests can still run.

Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
---
 tools/testing/selftests/kvm/.gitignore        |  1 -
 tools/testing/selftests/kvm/Makefile          |  1 -
 .../selftests/kvm/aarch64/get-reg-list-sve.c  |  3 --
 .../selftests/kvm/aarch64/get-reg-list.c      | 31 +++++++++++++------
 4 files changed, 21 insertions(+), 15 deletions(-)
 delete mode 100644 tools/testing/selftests/kvm/aarch64/get-reg-list-sve.c

diff --git a/tools/testing/selftests/kvm/.gitignore b/tools/testing/selftests/kvm/.gitignore
index bd83158e0e0b..e3745c90d8b2 100644
--- a/tools/testing/selftests/kvm/.gitignore
+++ b/tools/testing/selftests/kvm/.gitignore
@@ -1,6 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0-only
 /aarch64/get-reg-list
-/aarch64/get-reg-list-sve
 /aarch64/vgic_init
 /s390x/memop
 /s390x/resets
diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index e439d027939d..bf54fc23bcff 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -78,7 +78,6 @@ TEST_GEN_PROGS_x86_64 += set_memory_region_test
 TEST_GEN_PROGS_x86_64 += steal_time
 
 TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list
-TEST_GEN_PROGS_aarch64 += aarch64/get-reg-list-sve
 TEST_GEN_PROGS_aarch64 += aarch64/vgic_init
 TEST_GEN_PROGS_aarch64 += demand_paging_test
 TEST_GEN_PROGS_aarch64 += dirty_log_test
diff --git a/tools/testing/selftests/kvm/aarch64/get-reg-list-sve.c b/tools/testing/selftests/kvm/aarch64/get-reg-list-sve.c
deleted file mode 100644
index efba76682b4b..000000000000
--- a/tools/testing/selftests/kvm/aarch64/get-reg-list-sve.c
+++ /dev/null
@@ -1,3 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#define REG_LIST_SVE
-#include "get-reg-list.c"
diff --git a/tools/testing/selftests/kvm/aarch64/get-reg-list.c b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
index be1a2877d7fa..dc06a28bfb74 100644
--- a/tools/testing/selftests/kvm/aarch64/get-reg-list.c
+++ b/tools/testing/selftests/kvm/aarch64/get-reg-list.c
@@ -27,16 +27,13 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
 #include "kvm_util.h"
 #include "test_util.h"
 #include "processor.h"
 
-#ifdef REG_LIST_SVE
-#define reg_list_sve() (true)
-#else
-#define reg_list_sve() (false)
-#endif
-
 static struct kvm_reg_list *reg_list;
 static __u64 *blessed_reg, blessed_n;
 
@@ -539,7 +536,8 @@ static struct vcpu_config *parse_config(const char *config)
 int main(int ac, char **av)
 {
 	struct vcpu_config *c, *sel = NULL;
-	int i;
+	int i, ret = 0;
+	pid_t pid;
 
 	for (i = 1; i < ac; ++i) {
 		if (strcmp(av[i], "--core-reg-fixup") == 0)
@@ -568,10 +566,22 @@ int main(int ac, char **av)
 		c = vcpu_configs[i];
 		if (sel && c != sel)
 			continue;
-		run_test(c);
+
+		pid = fork();
+
+		if (!pid) {
+			run_test(c);
+			exit(0);
+		} else {
+			int wstatus;
+			pid_t wpid = wait(&wstatus);
+			TEST_ASSERT(wpid == pid && WIFEXITED(wstatus), "wait: Unexpected return");
+			if (WEXITSTATUS(wstatus) && WEXITSTATUS(wstatus) != KSFT_SKIP)
+				ret = KSFT_FAIL;
+		}
 	}
 
-	return 0;
+	return ret;
 }
 
 /*
@@ -970,6 +980,7 @@ static struct vcpu_config sve_config = {
 };
 
 static struct vcpu_config *vcpu_configs[] = {
-	reg_list_sve() ? &sve_config : &vregs_config,
+	&vregs_config,
+	&sve_config,
 };
 static int vcpu_configs_n = ARRAY_SIZE(vcpu_configs);
-- 
2.30.2