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 1/9] KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
Date: Thu, 8 Dec 2016 19:19:48 +1100 [thread overview]
Message-ID: <20161208081956.26221-2-aik@ozlabs.ru> (raw)
In-Reply-To: <20161208081956.26221-1-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 300ef255d1e0..810f74317987 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -870,6 +870,7 @@ struct kvm_ppc_smmu_info {
#define KVM_CAP_S390_USER_INSTR0 130
#define KVM_CAP_MSI_DEVID 131
#define KVM_CAP_PPC_HTM 132
+#define KVM_CAP_SPAPR_TCE_VFIO 133
#ifdef KVM_CAP_IRQ_ROUTING
--
2.11.0
next prev parent reply other threads:[~2016-12-08 8:20 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-08 8:19 [PATCH kernel 0/9] powerpc/kvm/vfio: Enable in-kernel acceleration Alexey Kardashevskiy
2016-12-08 8:19 ` Alexey Kardashevskiy [this message]
2016-12-12 4:08 ` [PATCH kernel 1/9] KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number David Gibson
2016-12-08 8:19 ` [PATCH kernel 2/9] powerpc/iommu: Cleanup iommu_table disposal Alexey Kardashevskiy
2016-12-12 4:15 ` David Gibson
2016-12-08 8:19 ` [PATCH kernel 3/9] powerpc/vfio_spapr_tce: Add reference counting to iommu_table Alexey Kardashevskiy
2016-12-12 4:18 ` David Gibson
2016-12-08 8:19 ` [PATCH kernel 4/9] powerpc/mmu: Add real mode support for IOMMU preregistered memory Alexey Kardashevskiy
2016-12-16 0:40 ` David Gibson
2016-12-08 8:19 ` [PATCH kernel 5/9] KVM: PPC: Use preregistered memory API to access TCE list Alexey Kardashevskiy
2016-12-16 0:57 ` David Gibson
2016-12-08 8:19 ` [PATCH kernel 6/9] powerpc/powernv/iommu: Add real mode version of iommu_table_ops::exchange() Alexey Kardashevskiy
2016-12-16 1:06 ` David Gibson
2016-12-08 8:19 ` [PATCH kernel 7/9] KVM: PPC: Enable IOMMU_API for KVM_BOOK3S_64 permanently Alexey Kardashevskiy
2016-12-16 1:11 ` David Gibson
2016-12-08 8:19 ` [PATCH kernel 8/9] KVM: PPC: Pass kvm* to kvmppc_find_table() Alexey Kardashevskiy
2016-12-16 1:32 ` David Gibson
2016-12-08 8:19 ` [PATCH kernel 9/9] KVM: PPC: Add in-kernel acceleration for VFIO Alexey Kardashevskiy
2016-12-08 17:55 ` Alex Williamson
2016-12-09 7:53 ` Alexey Kardashevskiy
2016-12-09 15:35 ` Alex Williamson
2016-12-14 3:53 ` Alexey Kardashevskiy
2016-12-19 17:27 ` Alex Williamson
-- strict thread matches above, loose matches on Subject: below --
2016-03-07 3:41 [PATCH kernel 0/9] KVM, PPC, VFIO: Enable in-kernel acceleration Alexey Kardashevskiy
2016-03-07 3:41 ` [PATCH kernel 1/9] KVM: PPC: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number Alexey Kardashevskiy
2016-03-07 4:58 ` David Gibson
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