From bd55947884b5421697d186016b0e57b1d6643fe0 Mon Sep 17 00:00:00 2001 From: Christoffer Dall Date: Thu, 1 Feb 2018 21:53:07 +0100 Subject: [PATCH] target/arm/kvm: gic: Prevent creating userspace GICv3 with KVM MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit KVM doesn't support emulating a GICv3 in userspace, only GICv2. We currently attempt this anyway, and as a result a KVM guest doesn't receive interrupts and the user is left wondering why. Report an error to the user if this particular combination is requested. Signed-off-by: Christoffer Dall Reviewed-by: Philippe Mathieu-Daudé Message-id: 20180201205307.30343-1-christoffer.dall@linaro.org Signed-off-by: Peter Maydell --- target/arm/kvm_arm.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h index ff53e9fafb..cfb7e5af72 100644 --- a/target/arm/kvm_arm.h +++ b/target/arm/kvm_arm.h @@ -234,6 +234,10 @@ static inline const char *gicv3_class_name(void) exit(1); #endif } else { + if (kvm_enabled()) { + error_report("Userspace GICv3 is not supported with KVM"); + exit(1); + } return "arm-gicv3"; } } -- GitLab