From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
Alex Williamson <alex.williamson@redhat.com>,
David Gibson <david@gibson.dropbear.id.au>,
Paul Mackerras <paulus@samba.org>,
kvm-ppc@vger.kernel.org, kvm@vger.kernel.org
Subject: [PATCH kernel v7 05/10] KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
Date: Wed, 8 Mar 2017 14:00:06 +1100 [thread overview]
Message-ID: <20170308030011.26780-6-aik@ozlabs.ru> (raw)
In-Reply-To: <20170308030011.26780-1-aik@ozlabs.ru>
This adds a capability number for in-kernel support for VFIO on
SPAPR platform.
The capability will tell the user space whether in-kernel handlers of
H_PUT_TCE can handle VFIO-targeted requests or not. If not, the user space
must not attempt allocating a TCE table in the host kernel via
the KVM_CREATE_SPAPR_TCE KVM ioctl because in that case TCE requests
will not be passed to the user space which is desired action in
the situation like that.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
---
include/uapi/linux/kvm.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index f51d5082a377..f5a52ffb6b58 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -883,6 +883,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_PPC_MMU_RADIX 134
#define KVM_CAP_PPC_MMU_HASH_V3 135
#define KVM_CAP_IMMEDIATE_EXIT 136
+#define KVM_CAP_SPAPR_TCE_VFIO 137
#ifdef KVM_CAP_IRQ_ROUTING
--
2.11.0
next prev parent reply other threads:[~2017-03-08 3:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-08 3:00 [PATCH kernel v7 00/10] powerpc/kvm/vfio: Enable in-kernel acceleration Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 01/10] powerpc/mmu: Add real mode support for IOMMU preregistered memory Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 02/10] powerpc/powernv/iommu: Add real mode version of iommu_table_ops::exchange() Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 03/10] powerpc/iommu/vfio_spapr_tce: Cleanup iommu_table disposal Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 04/10] powerpc/vfio_spapr_tce: Add reference counting to iommu_table Alexey Kardashevskiy
2017-03-08 3:00 ` Alexey Kardashevskiy [this message]
2017-03-08 3:00 ` [PATCH kernel v7 06/10] KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 07/10] KVM: PPC: Pass kvm* to kvmppc_find_table() Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 08/10] KVM: PPC: Use preregistered memory API to access TCE list Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 09/10] KVM: PPC: iommu: Unify TCE checking Alexey Kardashevskiy
2017-03-09 4:25 ` Alexey Kardashevskiy
2017-03-08 3:00 ` [PATCH kernel v7 10/10] KVM: PPC: VFIO: Add in-kernel acceleration for VFIO Alexey Kardashevskiy
2017-03-09 6:47 ` David Gibson
2017-03-09 11:55 ` Alexey Kardashevskiy
2017-03-10 0:36 ` David Gibson
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