[RFC 3/3] Revert "rcutorture: Tweak kvm options"

["Joel Fernandes (Google)" <joel@joelfernandes.org>]

This reverts commit a6fda6dab93c2c06ef4b8cb4b9258df6674d2438 which
causes kvm.sh to not run on my machines. The qemu-system-x86_64 command
runs but does nothing.

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
---
I am Ok if we want to drop this patch but it is in my tree because
without it I can't run the tests.

 tools/testing/selftests/rcutorture/bin/functions.sh | 13 +------------
 .../selftests/rcutorture/configs/rcu/CFcommon       |  3 ---
 2 files changed, 1 insertion(+), 15 deletions(-)

diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh b/tools/testing/selftests/rcutorture/bin/functions.sh
index c3a49fb4d6f6..6bcb8b5b2ff2 100644
--- a/tools/testing/selftests/rcutorture/bin/functions.sh
+++ b/tools/testing/selftests/rcutorture/bin/functions.sh
@@ -172,7 +172,7 @@ identify_qemu_append () {
 	local console=ttyS0
 	case "$1" in
 	qemu-system-x86_64|qemu-system-i386)
-		echo selinux=0 initcall_debug debug
+		echo noapic selinux=0 initcall_debug debug
 		;;
 	qemu-system-aarch64)
 		console=ttyAMA0
@@ -191,19 +191,8 @@ identify_qemu_append () {
 # Output arguments for qemu arguments based on the TORTURE_QEMU_MAC
 # and TORTURE_QEMU_INTERACTIVE environment variables.
 identify_qemu_args () {
-	local KVM_CPU=""
-	case "$1" in
-	qemu-system-x86_64)
-		KVM_CPU=kvm64
-		;;
-	qemu-system-i386)
-		KVM_CPU=kvm32
-		;;
-	esac
 	case "$1" in
 	qemu-system-x86_64|qemu-system-i386)
-		echo -machine q35,accel=kvm
-		echo -cpu ${KVM_CPU}
 		;;
 	qemu-system-aarch64)
 		echo -machine virt,gic-version=host -cpu host
diff --git a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
index e19a444a0684..d2d2a86139db 100644
--- a/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
+++ b/tools/testing/selftests/rcutorture/configs/rcu/CFcommon
@@ -1,5 +1,2 @@
 CONFIG_RCU_TORTURE_TEST=y
 CONFIG_PRINTK_TIME=y
-CONFIG_HYPERVISOR_GUEST=y
-CONFIG_PARAVIRT=y
-CONFIG_KVM_GUEST=y
-- 
2.22.0.410.gd8fdbe21b5-goog