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From: Eric Auger <eric.auger@redhat.com>
To: eric.auger.pro@gmail.com, eric.auger@redhat.com,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu, marc.zyngier@arm.com,
	cdall@kernel.org, peter.maydell@linaro.org
Cc: andre.przywara@arm.com, drjones@redhat.com, wei@redhat.com
Subject: [RFC v2 10/12] KVM: arm/arm64: Add KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION
Date: Tue, 27 Mar 2018 16:04:14 +0200	[thread overview]
Message-ID: <1522159456-10419-11-git-send-email-eric.auger@redhat.com> (raw)
In-Reply-To: <1522159456-10419-1-git-send-email-eric.auger@redhat.com>

This new attribute allows the userspace to set the base address
of a reditributor region, relaxing the constraint of having all
consecutive redistibutor frames contiguous.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 arch/arm/include/uapi/asm/kvm.h   | 7 ++++---
 arch/arm64/include/uapi/asm/kvm.h | 7 ++++---
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index 6edd177..ce67f1d 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -88,9 +88,10 @@ struct kvm_regs {
 #define KVM_VGIC_V2_CPU_SIZE		0x2000
 
 /* Supported VGICv3 address types  */
-#define KVM_VGIC_V3_ADDR_TYPE_DIST	2
-#define KVM_VGIC_V3_ADDR_TYPE_REDIST	3
-#define KVM_VGIC_ITS_ADDR_TYPE		4
+#define KVM_VGIC_V3_ADDR_TYPE_DIST		2
+#define KVM_VGIC_V3_ADDR_TYPE_REDIST		3
+#define KVM_VGIC_ITS_ADDR_TYPE			4
+#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION	5
 
 #define KVM_VGIC_V3_DIST_SIZE		SZ_64K
 #define KVM_VGIC_V3_REDIST_SIZE		(2 * SZ_64K)
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 9abbf30..ef8ad3b 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -88,9 +88,10 @@ struct kvm_regs {
 #define KVM_VGIC_V2_CPU_SIZE		0x2000
 
 /* Supported VGICv3 address types  */
-#define KVM_VGIC_V3_ADDR_TYPE_DIST	2
-#define KVM_VGIC_V3_ADDR_TYPE_REDIST	3
-#define KVM_VGIC_ITS_ADDR_TYPE		4
+#define KVM_VGIC_V3_ADDR_TYPE_DIST		2
+#define KVM_VGIC_V3_ADDR_TYPE_REDIST		3
+#define KVM_VGIC_ITS_ADDR_TYPE			4
+#define KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION	5
 
 #define KVM_VGIC_V3_DIST_SIZE		SZ_64K
 #define KVM_VGIC_V3_REDIST_SIZE		(2 * SZ_64K)
-- 
2.5.5

  parent reply	other threads:[~2018-03-27 14:05 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-27 14:04 [RFC v2 00/12] KVM: arm/arm64: Allow multiple GICv3 redistributor regions Eric Auger
2018-03-27 14:04 ` [RFC v2 01/12] KVM: arm/arm64: Set dist->spis to NULL after kfree Eric Auger
2018-03-27 17:10   ` Marc Zyngier
2018-03-28  6:41     ` Auger Eric
2018-03-27 14:04 ` [RFC v2 02/12] KVM: arm/arm64: Document KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION Eric Auger
2018-04-09 21:38   ` Christoffer Dall
2018-04-12 15:51     ` Auger Eric
2018-03-27 14:04 ` [RFC v2 03/12] KVM: arm/arm64: Replace the single rdist region by a list Eric Auger
2018-03-27 14:04   ` Eric Auger
2018-03-27 14:04 ` [RFC v2 04/12] KVM: arm/arm64: Helper to locate free rdist index Eric Auger
2018-03-27 14:04 ` [RFC v2 05/12] KVM: arm/arm64: Revisit Redistributor TYPER last bit computation Eric Auger
2018-03-27 14:04 ` [RFC v2 06/12] KVM: arm/arm64: Helper to register a new redistributor region Eric Auger
2018-03-27 14:04 ` [RFC v2 07/12] KVM: arm/arm64: Adapt vgic_v3_check_base to multiple rdist regions Eric Auger
2018-03-27 14:04 ` [RFC v2 08/12] KVM: arm/arm64: Check vcpu redist base before registering an iodev Eric Auger
2018-03-27 14:04 ` [RFC v2 09/12] KVM: arm/arm64: Check all vcpu redistributors are set on map_resources Eric Auger
2018-03-27 14:04 ` Eric Auger [this message]
2018-03-27 14:04 ` [RFC v2 11/12] KVM: arm/arm64: Implement KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION Eric Auger
2018-03-28 18:55   ` Peter Maydell
2018-03-28 20:19     ` Auger Eric
2018-03-27 14:04 ` [RFC v2 12/12] KVM: arm/arm64: Bump VGIC_V3_MAX_CPUS to 512 Eric Auger

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