target/arm: Correct KVM & HVF dtb_compatible value

Linux kernel knows how to parse "arm,armv8", not "arm,arm-v8".

See arch/arm64/boot/dts/foundation-v8.dts:

  https://github.com/torvalds/linux/commit/90556ca1ebdd

Cc: qemu-stable@nongnu.org
Fixes: 26861c7ce06 ("target-arm: Add minimal KVM AArch64 support")
Fixes: 585df85efea ("hvf: arm: Implement -cpu host")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250623121845.7214-10-philmd@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit a412575837b6a46584fba891e3706e87bd09a3e6)
(Mjt: the change is in target/arm/kvm64.c, not ../kvm.c)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index 047cb8fc50e6b7f1aaf5996b9254ac4f2d9791f7..dfce8181f97ce9bd974ddb3521031d9c8f1a62ad 100644 (file)
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -489,7 +489,7 @@ static bool hvf_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
     hv_vcpu_exit_t *exit;
     int i;
 
-    ahcf->dtb_compatible = "arm,arm-v8";
+    ahcf->dtb_compatible = "arm,armv8";
     ahcf->features = (1ULL << ARM_FEATURE_V8) |
                      (1ULL << ARM_FEATURE_NEON) |
                      (1ULL << ARM_FEATURE_AARCH64) |

diff --git a/target/arm/kvm64.c b/target/arm/kvm64.c
index ed85bcfb5cca83a485530ff3b630015287ff9120..de69d8ade953f1e2c2c5930cd7c502f7a64d4a90 100644 (file)
--- a/target/arm/kvm64.c
+++ b/target/arm/kvm64.c
@@ -546,7 +546,7 @@ bool kvm_arm_get_host_cpu_features(ARMHostCPUFeatures *ahcf)
     }
 
     ahcf->target = init.target;
-    ahcf->dtb_compatible = "arm,arm-v8";
+    ahcf->dtb_compatible = "arm,armv8";
 
     err = read_sys_reg64(fdarray[2], &ahcf->isar.id_aa64pfr0,
                          ARM64_SYS_REG(3, 0, 0, 4, 0));