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[PATCH 1/3] target/arm: Create kvm_arm_svm_supported
From: |
Richard Henderson |
Subject: |
[PATCH 1/3] target/arm: Create kvm_arm_svm_supported |
Date: |
Mon, 25 Jul 2022 11:14:55 -0700 |
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.henderson@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