From: Richard Henderson <richard.henderson@linaro.org>
Date: Mon, 20 Jul 2020 09:25:36 +0000 (+0100)
Subject: hw/arm/virt: Error for MTE enabled with KVM
X-Git-Tag: qemu-xen-4.15.0~52^2~10
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=7f6185ed9ca977a9836f35b994e4f85cecae8437;p=qemu-xen.git

hw/arm/virt: Error for MTE enabled with KVM

While we expect KVM to support MTE at some future point,
it certainly won't be ready in time for qemu 5.1.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200713213341.590275-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 5866c4ce20..a7f3d442db 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1773,6 +1773,12 @@ static void machvirt_init(MachineState *machine)
         exit(1);
     }
 
+    if (vms->mte && kvm_enabled()) {
+        error_report("mach-virt: KVM does not support providing "
+                     "MTE to the guest CPU");
+        exit(1);
+    }
+
     create_fdt(vms);
 
     possible_cpus = mc->possible_cpu_arch_ids(machine);