From: Andrew Jones <drjones@redhat.com>
Date: Mon, 23 Aug 2021 16:06:45 +0000 (+0200)
Subject: target/arm/kvm64: Ensure sve vls map is completely clear
X-Git-Tag: v6.2.0-rc0~131^2~30
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=927703cc40fb86b10bd7bb5bb0efa8da69fc6db6;p=thirdparty%2Fqemu.git

target/arm/kvm64: Ensure sve vls map is completely clear

bitmap_clear() only clears the given range. While the given
range should be sufficient in this case we might as well be
100% sure all bits are zeroed by using bitmap_zero().

Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210823160647.34028-3-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index 59982d470d3..e790d6c9a57 100644
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -740,7 +740,7 @@ void kvm_arm_sve_get_vls(CPUState *cs, unsigned long *map)
     uint32_t vq = 0;
     int i, j;
 
-    bitmap_clear(map, 0, ARM_MAX_VQ);
+    bitmap_zero(map, ARM_MAX_VQ);
 
     /*
      * KVM ensures all host CPUs support the same set of vector lengths.