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From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: Andrew Jones <drjones@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>,
	bijan.mottahedeh@oracle.com, Marc Zyngier <maz@kernel.org>,
	Richard Henderson <richard.henderson@linaro.org>,
	QEMU Developers <qemu-devel@nongnu.org>,
	qemu-arm <qemu-arm@nongnu.org>,
	guoheyi@huawei.com, msys.mizuma@gmail.com
Subject: Re: [RFC PATCH v2 5/5] target/arm/cpu: Add the kvm-no-adjvtime CPU property
Date: Thu, 6 Feb 2020 23:46:49 +0100	[thread overview]
Message-ID: <2522956e-5dae-3ebc-76d2-010a918e0d19@redhat.com> (raw)
In-Reply-To: <20200206124047.o4sy52jgbkqeravd@kamzik.brq.redhat.com>

On 2/6/20 1:40 PM, Andrew Jones wrote:
> On Thu, Feb 06, 2020 at 01:08:53PM +0100, Philippe Mathieu-Daudé wrote:
> ...
>>> +/* KVM VCPU properties should be prefixed with "kvm-". */
>>> +void kvm_arm_add_vcpu_properties(Object *obj)
>>> +{
>>> +    if (!kvm_enabled()) {
>>
>> This can't happen, right? Can we turn that into an assertion, or
>> remove the check?
> 
> You're right. An assert would be more appropriate. Will you send a patch?

Apparently this can be called with KVM_CONFIG && !kvm_enabled():

See kvm_arm_set_cpu_features_from_host()
{
     if (!arm_host_cpu_features.dtb_compatible) {
         if (!kvm_enabled() ||
             !kvm_arm_get_host_cpu_features(&arm_host_cpu_features)) {
             /* We can't report this error yet, so flag that we need to
              * in arm_cpu_realizefn().
              */

I won't modify your patch (until I have a better understanding of 
TYPE_ARM_HOST_CPU).



  reply	other threads:[~2020-02-06 22:48 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-12 17:33 [RFC PATCH v2 0/5] target/arm/kvm: Adjust virtual time Andrew Jones
2019-12-12 17:33 ` [RFC PATCH v2 1/5] hw: add compat machines for 5.0 Andrew Jones
2019-12-12 18:27   ` David Hildenbrand
2019-12-12 19:24   ` Eduardo Habkost
2019-12-13  7:10     ` Andrew Jones
2019-12-13  5:00   ` David Gibson
2019-12-12 17:33 ` [RFC PATCH v2 2/5] target/arm/kvm64: kvm64 cpus have timer registers Andrew Jones
2019-12-12 17:33 ` [RFC PATCH v2 3/5] target/arm/kvm: Implement virtual time adjustment Andrew Jones
2019-12-16 15:14   ` Peter Maydell
2019-12-16 15:40     ` Peter Maydell
2019-12-16 16:43       ` Andrew Jones
2019-12-16 18:06         ` Peter Maydell
2019-12-19 14:30           ` Andrew Jones
2020-01-20  9:40             ` Andrew Jones
2019-12-16 16:36     ` Andrew Jones
2019-12-12 17:33 ` [RFC PATCH v2 4/5] tests/arm-cpu-features: Check feature default values Andrew Jones
2019-12-12 17:33 ` [RFC PATCH v2 5/5] target/arm/cpu: Add the kvm-no-adjvtime CPU property Andrew Jones
2019-12-16 15:06   ` Peter Maydell
2019-12-16 16:52     ` Andrew Jones
2019-12-16 16:57       ` Peter Maydell
2020-01-20 10:31     ` Andrew Jones
2020-02-06 12:08   ` Philippe Mathieu-Daudé
2020-02-06 12:40     ` Andrew Jones
2020-02-06 22:46       ` Philippe Mathieu-Daudé [this message]
2020-02-07  7:37         ` Andrew Jones
2019-12-16 15:33 ` [RFC PATCH v2 0/5] target/arm/kvm: Adjust virtual time Peter Maydell
2019-12-16 15:44   ` Peter Maydell
2020-01-20 13:45     ` Andrew Jones
2019-12-16 16:18   ` Marc Zyngier
2019-12-16 16:59     ` Andrew Jones
2019-12-16 17:05       ` Marc Zyngier

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