| Message ID | 20250416134208.383984-43-steven.price@arm.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show
Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id B4F871B042F; Wed, 16 Apr 2025 13:46:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744811213; cv=none; b=EZnQr21E7A2T8zv2LPId8cygky4QIMp3B+BrvdcSGDBZt7BrnHlgozmUVcDk1EPSV66T/c5dAPPfrG9Y4dgZakUisz5IJqtmpeUFaOgbmIaYcy/A8aI36RWRmjRffqG2fSsdQqGYmaLHiOciJ8uw4V4pbblBiBlc/KnhwVlKj+4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744811213; c=relaxed/simple; bh=WKxu+tX9Szq2lNGYL8kyAqlmCFDI1ZYA9VRKXiEQq8Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gkaKAq4RHBY1F9Z4W6JdfEuoKAvz6bSzlV9GiGxIPpZmz33/c85c4qnZ7NcENPtpRqi5BrfD16HxPTBwi61qVawLxykaQsovEPq3DFs2kfKgAL2TbBJoabQDEmZlKhpSlEs/U72GtMInxAigft+p3s3wA+TgcMUqZMxzjfb7v3c= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 229631692; Wed, 16 Apr 2025 06:46:49 -0700 (PDT) Received: from e122027.arm.com (unknown [10.57.90.52]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 164933F59E; Wed, 16 Apr 2025 06:46:46 -0700 (PDT) From: Steven Price <steven.price@arm.com> To: kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Steven Price <steven.price@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>, James Morse <james.morse@arm.com>, Oliver Upton <oliver.upton@linux.dev>, Suzuki K Poulose <suzuki.poulose@arm.com>, Zenghui Yu <yuzenghui@huawei.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly <joey.gouly@arm.com>, Alexandru Elisei <alexandru.elisei@arm.com>, Christoffer Dall <christoffer.dall@arm.com>, Fuad Tabba <tabba@google.com>, linux-coco@lists.linux.dev, Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>, Gavin Shan <gshan@redhat.com>, Shanker Donthineni <sdonthineni@nvidia.com>, Alper Gun <alpergun@google.com>, "Aneesh Kumar K . V" <aneesh.kumar@kernel.org> Subject: [PATCH v8 42/43] KVM: arm64: Expose KVM_ARM_VCPU_REC to user space Date: Wed, 16 Apr 2025 14:42:04 +0100 Message-ID: <20250416134208.383984-43-steven.price@arm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250416134208.383984-1-steven.price@arm.com> References: <20250416134208.383984-1-steven.price@arm.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: <kvm.vger.kernel.org> List-Subscribe: <mailto:kvm+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:kvm+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit |
| Series |
arm64: Support for Arm CCA in KVM
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expand
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diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 3c61b84e5c4e..6d0b1772540d 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -40,7 +40,7 @@ #define KVM_MAX_VCPUS VGIC_V3_MAX_CPUS -#define KVM_VCPU_MAX_FEATURES 7 +#define KVM_VCPU_MAX_FEATURES 10 #define KVM_VCPU_VALID_FEATURES (BIT(KVM_VCPU_MAX_FEATURES) - 1) #define KVM_REQ_SLEEP \
Increment KVM_VCPU_MAX_FEATURES to expose the new capability to user space. Signed-off-by: Steven Price <steven.price@arm.com> --- *NOTE*: This also exposes KVM_ARM_VCPU_HAS_EL2/KVM_ARM_VCPU_HAS_EL2_E2H0 (as they are both less than KVM_ARM_VCPU_REC) - so this currently depends on nested virt being 'finished' before merging. So this should be merged after: "KVM: arm64: Allow userspace to request KVM_ARM_VCPU_EL2*": https://lore.kernel.org/r/20250408105225.4002637-17-maz%40kernel.org --- arch/arm64/include/asm/kvm_host.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)