diff --git a/tests/qemuxml2argvdata/aarch64-features-sve-disabled.xml b/tests/qemuxml2argvdata/aarch64-features-sve-disabled.xml
new file mode 100644
index 0000000000000000000000000000000000000000..0fa8b1314de52a6dd7ca8a7eecc3c7b06f9d860e
--- /dev/null
+++ b/tests/qemuxml2argvdata/aarch64-features-sve-disabled.xml
@@ -0,0 +1,18 @@
+
+ guest
+ 1ccfd97d-5eb4-478a-bbe6-88d254c16db7
+ 1048576
+ 1
+
+ hvm
+
+
+
+
+
+
+ /usr/bin/qemu-system-aarch64
+
+
+
+
diff --git a/tests/qemuxml2argvdata/aarch64-features-sve.aarch64-latest.args b/tests/qemuxml2argvdata/aarch64-features-sve.aarch64-latest.args
new file mode 100644
index 0000000000000000000000000000000000000000..6852f5d54d0d17d95bfbd4a7c1b322829f08873a
--- /dev/null
+++ b/tests/qemuxml2argvdata/aarch64-features-sve.aarch64-latest.args
@@ -0,0 +1,32 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/tmp/lib/domain--1-guest \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/tmp/lib/domain--1-guest/.local/share \
+XDG_CACHE_HOME=/tmp/lib/domain--1-guest/.cache \
+XDG_CONFIG_HOME=/tmp/lib/domain--1-guest/.config \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-aarch64 \
+-name guest=guest,debug-threads=on \
+-S \
+-object secret,id=masterKey0,format=raw,\
+file=/tmp/lib/domain--1-guest/master-key.aes \
+-machine virt,accel=kvm,usb=off,dump-guest-core=off,gic-version=3 \
+-cpu host,sve512=on,sve384=off,sve256=on,sve128=on,sve=on \
+-m 1024 \
+-overcommit mem-lock=off \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-no-acpi \
+-boot strict=on \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
+resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxml2argvdata/aarch64-features-sve.xml b/tests/qemuxml2argvdata/aarch64-features-sve.xml
new file mode 100644
index 0000000000000000000000000000000000000000..0147a9b19d19a1be2c322e12f0348f0b803b5ad1
--- /dev/null
+++ b/tests/qemuxml2argvdata/aarch64-features-sve.xml
@@ -0,0 +1,20 @@
+
+ guest
+ 1ccfd97d-5eb4-478a-bbe6-88d254c16db7
+ 1048576
+ 1
+
+ hvm
+
+
+
+
+
+
+
+
+ /usr/bin/qemu-system-aarch64
+
+
+
+
diff --git a/tests/qemuxml2argvdata/aarch64-features-wrong.xml b/tests/qemuxml2argvdata/aarch64-features-wrong.xml
new file mode 100644
index 0000000000000000000000000000000000000000..f4a883c9f64d8b9553d55b7312f9fc7b686d8e3a
--- /dev/null
+++ b/tests/qemuxml2argvdata/aarch64-features-wrong.xml
@@ -0,0 +1,17 @@
+
+ guest
+ 1ccfd97d-5eb4-478a-bbe6-88d254c16db7
+ 1048576
+ 1
+
+ hvm
+
+
+
+
+
+ /usr/bin/qemu-system-aarch64
+
+
+
+
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index fd330df3e0b0ddea34915e584ef88e7826175e56..8c8743abc1369a681d26c404a29be4897ef1f4c3 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -2669,6 +2669,15 @@ mymain(void)
DO_TEST("aarch64-noacpi-nouefi", NONE);
DO_TEST_PARSE_ERROR("aarch64-acpi-nouefi", NONE);
+ /* QEMU 4.0.0 didn't have support for aarch64 CPU features */
+ DO_TEST_CAPS_ARCH_VER_FAILURE("aarch64-features-sve", "aarch64", "4.0.0");
+ /* aarch64 doesn't support the same CPU features as x86 */
+ DO_TEST_CAPS_ARCH_LATEST_FAILURE("aarch64-features-wrong", "aarch64");
+ /* Can't enable vector lengths when SVE is overall disabled */
+ DO_TEST_CAPS_ARCH_LATEST_PARSE_ERROR("aarch64-features-sve-disabled", "aarch64");
+ /* SVE aarch64 CPU features work on modern QEMU */
+ DO_TEST_CAPS_ARCH_LATEST("aarch64-features-sve", "aarch64");
+
qemuTestSetHostArch(driver.caps, VIR_ARCH_NONE);
DO_TEST("kvm-pit-delay", QEMU_CAPS_KVM_PIT_TICK_POLICY);
diff --git a/tests/qemuxml2xmloutdata/aarch64-features-sve.aarch64-latest.xml b/tests/qemuxml2xmloutdata/aarch64-features-sve.aarch64-latest.xml
new file mode 100644
index 0000000000000000000000000000000000000000..914cc7957a8fdf8d24bb275a53b6f833436597ad
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/aarch64-features-sve.aarch64-latest.xml
@@ -0,0 +1,31 @@
+
+ guest
+ 1ccfd97d-5eb4-478a-bbe6-88d254c16db7
+ 1048576
+ 1048576
+ 1
+
+ hvm
+
+
+
+
+
+
+
+
+
+
+
+
+
+ destroy
+ restart
+ destroy
+
+ /usr/bin/qemu-system-aarch64
+
+
+
+
+
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 89c9494e6cbaed64a47d4b4b530a73016bbf4f6e..a6c6c20ac123a290b5680d80222ddbcc771bee89 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -1142,6 +1142,9 @@ mymain(void)
ARG_GIC, GIC_BOTH,
ARG_QEMU_CAPS, NONE);
+ /* SVE aarch64 CPU features work on modern QEMU */
+ DO_TEST_CAPS_ARCH_LATEST("aarch64-features-sve", "aarch64");
+
DO_TEST("memory-hotplug", NONE);
DO_TEST("memory-hotplug-nonuma", NONE);
DO_TEST("memory-hotplug-dimm", NONE);