[qemu-xen staging] hw/arm/virt: Error for MTE enabled with KVM

[patchbot@xxxxxxx]

commit 7f6185ed9ca977a9836f35b994e4f85cecae8437
Author:     Richard Henderson <richard.henderson@xxxxxxxxxx>
AuthorDate: Mon Jul 20 10:25:36 2020 +0100
Commit:     Peter Maydell <peter.maydell@xxxxxxxxxx>
CommitDate: Mon Jul 20 11:35:17 2020 +0100

    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@xxxxxxxxxx>
    Message-id: 20200713213341.590275-3-richard.henderson@xxxxxxxxxx
    Reviewed-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
    Signed-off-by: Peter Maydell <peter.maydell@xxxxxxxxxx>
---
 hw/arm/virt.c | 6 ++++++
 1 file changed, 6 insertions(+)

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);
--
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