From 14a10fc39923b3af07c8c46d22cb20843bee3a72 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andreas=20F=C3=A4rber?= Date: Sat, 27 Jul 2013 02:53:25 +0200 Subject: cpu: Partially revert "cpu: Change qemu_init_vcpu() argument to CPUState" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit c643bed99 moved qemu_init_vcpu() calls to common CPUState code. This causes x86 cpu-add to fail with "KVM: setting VAPIC address failed". The reason for the failure is that CPUClass::kvm_fd is not yet initialized in the following call graph: ->x86_cpu_realizefn ->x86_cpu_apic_realize ->qdev_init ->device_set_realized ->device_reset (hotplugged == 1) ->apic_reset_common ->vapic_base_update ->kvm_apic_vapic_base_update This causes attempted KVM vCPU ioctls to fail. By contrast, in the non-hotplug case the APIC is reset much later, when the vCPU is already initialized. As a quick and safe solution, move the qemu_init_vcpu() call back into the targets' realize functions. Reported-by: Chen Fan Acked-by: Igor Mammedov (for i386) Tested-by: Jia Liu (for openrisc) Signed-off-by: Andreas Färber --- target-sparc/cpu.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'target-sparc') diff --git a/target-sparc/cpu.c b/target-sparc/cpu.c index c7b4a90..47ce60d 100644 --- a/target-sparc/cpu.c +++ b/target-sparc/cpu.c @@ -743,6 +743,8 @@ static void sparc_cpu_realizefn(DeviceState *dev, Error **errp) { SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(dev); + qemu_init_vcpu(CPU(dev)); + scc->parent_realize(dev, errp); } -- cgit v1.1