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


From: Richard Henderson
Subject: Re: [PATCH 1/3] target/arm: Create kvm_arm_svm_supported
Date: Mon, 25 Jul 2022 21:40:50 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0

On 7/25/22 19:02, Zenghui Yu wrote:
Hi Richard,

On 2022/7/26 2:14, Richard Henderson wrote:
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);
+}
+

Not sure if it's a typo. Maybe we should instead use
kvm_arm_sve_supported() which was introduced in commit 14e99e0fbbc6.

Oof, it certainly is.

r~



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