[PATCH 1/3] target/arm: Create kvm_arm_svm_supported

[Richard Henderson]

Indication for support for SVE will not depend on whether we
perform the query on the main kvm_state or the temp vcpu.
Mirror kvm_arm_pauth_supported.

Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
---
 target/arm/kvm64.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index d16d4ea250..36ff20c9e3 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -496,6 +496,11 @@ static bool kvm_arm_pauth_supported(void)
             kvm_check_extension(kvm_state, KVM_CAP_ARM_PTRAUTH_GENERIC));
 }
 
+static bool kvm_arm_svm_supported(void)
+{
+    return kvm_check_extension(kvm_state, KVM_CAP_ARM_SVE);
+}
+
 bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
 {
     /* Identify the feature bits corresponding to the host CPU, and
@@ -675,7 +680,7 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
         }
     }
 
-    sve_supported = ioctl(fdarray[0], KVM_CHECK_EXTENSION, KVM_CAP_ARM_SVE) > 
0;
+    sve_supported = kvm_arm_svm_supported();
 
     /* Add feature bits that can't appear until after VCPU init. */
     if (sve_supported) {
-- 
2.34.1