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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>, Gleb Natapov <gleb@kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Alexander Graf <agraf@suse.de>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm-ppc@vger.kernel.org
Subject: [PATCH 1/3] PPC: KVM: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
Date: Thu,  5 Jun 2014 17:25:42 +1000	[thread overview]
Message-ID: <1401953144-19186-2-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1401953144-19186-1-git-send-email-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>
---
 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 a8f4ee5..944cd21 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -743,6 +743,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
 #define KVM_CAP_ENABLE_CAP_VM 98
 #define KVM_CAP_S390_IRQCHIP 99
+#define KVM_CAP_SPAPR_TCE_VFIO 100
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
2.0.0


WARNING: multiple messages have this Message-ID (diff)
From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: kvm@vger.kernel.org, Alexey Kardashevskiy <aik@ozlabs.ru>,
	Alexander Graf <agraf@suse.de>,
	kvm-ppc@vger.kernel.org, linux-kernel@vger.kernel.org,
	Gleb Natapov <gleb@kernel.org>, Paul Mackerras <paulus@samba.org>,
	Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH 1/3] PPC: KVM: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
Date: Thu,  5 Jun 2014 17:25:42 +1000	[thread overview]
Message-ID: <1401953144-19186-2-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1401953144-19186-1-git-send-email-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>
---
 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 a8f4ee5..944cd21 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -743,6 +743,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
 #define KVM_CAP_ENABLE_CAP_VM 98
 #define KVM_CAP_S390_IRQCHIP 99
+#define KVM_CAP_SPAPR_TCE_VFIO 100
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
2.0.0

WARNING: multiple messages have this Message-ID (diff)
From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: linuxppc-dev@lists.ozlabs.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>, Gleb Natapov <gleb@kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Alexander Graf <agraf@suse.de>,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	kvm-ppc@vger.kernel.org
Subject: [PATCH 1/3] PPC: KVM: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number
Date: Thu, 05 Jun 2014 07:25:42 +0000	[thread overview]
Message-ID: <1401953144-19186-2-git-send-email-aik@ozlabs.ru> (raw)
In-Reply-To: <1401953144-19186-1-git-send-email-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>
---
 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 a8f4ee5..944cd21 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -743,6 +743,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
 #define KVM_CAP_ENABLE_CAP_VM 98
 #define KVM_CAP_S390_IRQCHIP 99
+#define KVM_CAP_SPAPR_TCE_VFIO 100
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
2.0.0


  reply	other threads:[~2014-06-05  7:25 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-05  7:25 [PATCH 0/3] Prepare for in-kernel VFIO DMA operations acceleration Alexey Kardashevskiy
2014-06-05  7:25 ` Alexey Kardashevskiy
2014-06-05  7:25 ` Alexey Kardashevskiy
2014-06-05  7:25 ` Alexey Kardashevskiy [this message]
2014-06-05  7:25   ` [PATCH 1/3] PPC: KVM: Reserve KVM_CAP_SPAPR_TCE_VFIO capability number Alexey Kardashevskiy
2014-06-05  7:25   ` Alexey Kardashevskiy
2014-06-05  7:25 ` [PATCH 2/3] PPC: KVM: Reserve KVM_CAP_SPAPR_TCE_64 " Alexey Kardashevskiy
2014-06-05  7:25   ` Alexey Kardashevskiy
2014-06-05  7:25   ` Alexey Kardashevskiy
2014-06-05  7:25   ` Alexey Kardashevskiy
2014-06-05  7:25 ` [PATCH 3/3] PPC: KVM: Add support for 64bit TCE windows Alexey Kardashevskiy
2014-06-05  7:25   ` Alexey Kardashevskiy
2014-06-05  7:25   ` Alexey Kardashevskiy
2014-06-05  7:38   ` Benjamin Herrenschmidt
2014-06-05  7:38     ` Benjamin Herrenschmidt
2014-06-05  7:38     ` Benjamin Herrenschmidt
2014-06-05  9:26     ` Alexey Kardashevskiy
2014-06-05  9:26       ` Alexey Kardashevskiy
2014-06-05  9:26       ` Alexey Kardashevskiy
2014-06-05 10:27       ` Benjamin Herrenschmidt
2014-06-05 10:27         ` Benjamin Herrenschmidt
2014-06-05 10:27         ` Benjamin Herrenschmidt
2014-06-05 10:27         ` Benjamin Herrenschmidt
2014-06-05 11:56         ` Alexander Graf
2014-06-05 11:56           ` Alexander Graf
2014-06-05 11:56           ` Alexander Graf
2014-06-05 12:30           ` Benjamin Herrenschmidt
2014-06-05 12:30             ` Benjamin Herrenschmidt
2014-06-05 12:30             ` Benjamin Herrenschmidt
2014-06-05 12:32             ` Alexander Graf
2014-06-05 12:32               ` Alexander Graf
2014-06-05 12:32               ` Alexander Graf
2014-06-05 13:04             ` Alexey Kardashevskiy
2014-06-05 13:04               ` Alexey Kardashevskiy
2014-06-05 13:04               ` Alexey Kardashevskiy
2014-06-05 11:57 ` [PATCH 0/3] Prepare for in-kernel VFIO DMA operations acceleration Alexander Graf
2014-06-05 11:57   ` Alexander Graf
2014-06-05 11:57   ` Alexander Graf
2014-06-06  0:20   ` Alexey Kardashevskiy
2014-06-06  0:20     ` Alexey Kardashevskiy
2014-06-06  0:20     ` Alexey Kardashevskiy
2014-06-25 21:12     ` Alexander Graf
2014-06-25 21:12       ` Alexander Graf
2014-06-25 21:12       ` Alexander Graf
2014-06-25 23:59       ` Alexey Kardashevskiy
2014-06-25 23:59         ` Alexey Kardashevskiy
2014-06-25 23:59         ` Alexey Kardashevskiy
2014-06-26 10:37         ` Alexander Graf
2014-06-26 10:37           ` Alexander Graf
2014-06-26 10:37           ` Alexander Graf

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