From: Thomas Huth <thuth@redhat.com>
To: Janosch Frank <frankja@linux.ibm.com>, kvm@vger.kernel.org
Cc: borntraeger@de.ibm.com, david@redhat.com, cohuck@redhat.com,
linux-s390@vger.kernel.org
Subject: Re: [PATCH v10 3/6] KVM: s390: Add new reset vcpu API
Date: Fri, 31 Jan 2020 12:44:05 +0100 [thread overview]
Message-ID: <7e36cbd4-3f37-8509-400e-c2c708281aeb@redhat.com> (raw)
In-Reply-To: <20200131100205.74720-4-frankja@linux.ibm.com>
On 31/01/2020 11.02, Janosch Frank wrote:
> The architecture states that we need to reset local IRQs for all CPU
> resets. Because the old reset interface did not support the normal CPU
> reset we never did that on a normal reset.
>
> Let's implement an interface for the missing normal and clear resets
> and reset all local IRQs, registers and control structures as stated
> in the architecture.
>
> Userspace might already reset the registers via the vcpu run struct,
> but as we need the interface for the interrupt clearing part anyway,
> we implement the resets fully and don't rely on userspace to reset the
> rest.
>
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
> Documentation/virt/kvm/api.txt | 43 +++++++++++++++++
> arch/s390/kvm/kvm-s390.c | 84 +++++++++++++++++++++++-----------
> include/uapi/linux/kvm.h | 5 ++
> 3 files changed, 105 insertions(+), 27 deletions(-)
Reviewed-by: Thomas Huth <thuth@redhat.com>
next prev parent reply other threads:[~2020-01-31 11:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-31 10:01 [PATCH v10 0/6] KVM: s390: Add new reset vcpu API Janosch Frank
2020-01-31 10:02 ` [PATCH v10 1/6] KVM: s390: do not clobber registers during guest reset/store status Janosch Frank
2020-01-31 11:24 ` Christian Borntraeger
2020-01-31 10:02 ` [PATCH v10 2/6] KVM: s390: Cleanup initial cpu reset Janosch Frank
2020-01-31 11:31 ` Christian Borntraeger
2020-01-31 10:02 ` [PATCH v10 3/6] KVM: s390: Add new reset vcpu API Janosch Frank
2020-01-31 11:44 ` Thomas Huth [this message]
2020-01-31 11:50 ` Christian Borntraeger
2020-01-31 10:02 ` [PATCH v10 4/6] selftests: KVM: Add fpu and one reg set/get library functions Janosch Frank
2020-01-31 11:43 ` Christian Borntraeger
2020-01-31 13:59 ` Paolo Bonzini
2020-01-31 12:18 ` Christian Borntraeger
2020-01-31 10:02 ` [PATCH v10 5/6] selftests: KVM: s390x: Add reset tests Janosch Frank
2020-01-31 12:18 ` Christian Borntraeger
2020-01-31 10:02 ` [PATCH v10 6/6] selftests: KVM: testing the local IRQs resets Janosch Frank
2020-01-31 10:16 ` Cornelia Huck
2020-01-31 11:47 ` Thomas Huth
2020-01-31 12:47 ` Christian Borntraeger
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