From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D260CCD98C4 for ; Mon, 8 Jun 2026 14:43:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=OOliFS5tpwJKh5mZ2SL6AQP/2gTmwicBCexrV+2u1Wc=; b=xE8XsPSPbjUcFu SNIYPJZzyVL6R0rP2SiX7V+21iN5hcjVK9tNR+RS6a/TZ0iITCA3gXDppqhcnOO26CakAo+jfx062 TIetNQDZYyaiHdweRv9lbMPdYvldQIUve18v78Zz0nLKqIatU4SBHGeMwnpwjjVaCGTCw8Z02y8bq i4IsKr3Gzb+EXJBRq8W7ibC+AS1j2O0PX1S9YfR3FzPkEpgpnISd6SLu0Gm6EGRCfev0Gb7KI+tXp eE6j8miHhd7eCHKYVkhnsF/tZtKUKTrAJW2FEjTrldos2z6Nj9xm8DNRZkuj9Zi7pY3/zx4XnRPI7 5R4ramMQIkGjgm4prfBg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wWbCI-00000003pvp-22gA; Mon, 08 Jun 2026 14:43:26 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wWbCC-00000003piC-2QBV for kvm-riscv@bombadil.infradead.org; Mon, 08 Jun 2026 14:43:20 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=d7cVvrLPT1nDfeX/sab2rzFk0HpH+ccX3/IETQ9g3FU=; b=RIH0VlymJwHhhjzJug/1JA6oEv eMrp8R741/ENVlmayvCbcJghNQdrt8XszY8MxYOn1aEg0z+Xi/2O2PraiYb3j+6Z+u/CrFzDaFdxl uUVXPQaNLGNWNwAWcuOljga5Zno1qQ8gOc5klSEAP1WuKNnn5qf6uLZ0BjmHHxCUL3SZorLdvWK+B Y5MrQyphtJS77Ea7pJwTtWrm7U/1n0bXHqT8+EEYcRKyZ6E7Owoy6eenqm2j6Hq830hgRQiS/uyD8 RPKconcJ7bWT6kPq/3JlpKj0/G76U98D77ODT9vRkUqgFx8qehcIUBvfySPbfZgy+KRN+yjcNzt9+ woTGuaZw==; Received: from mail.8bytes.org ([85.214.250.239]) by desiato.infradead.org with esmtp (Exim 4.99.2 #2 (Red Hat Linux)) id 1wWbC7-00000001991-2xC1 for kvm-riscv@lists.infradead.org; Mon, 08 Jun 2026 14:43:18 +0000 Received: from io.home.8bytes.org (p4ffe1d30.dip0.t-ipconnect.de [79.254.29.48]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail.8bytes.org (Postfix) with ESMTPSA id 9C7712028BD; Mon, 8 Jun 2026 16:43:10 +0200 (CEST) From: =?UTF-8?q?J=C3=B6rg=20R=C3=B6del?= To: Paolo Bonzini , Sean Christopherson Cc: Tom Lendacky , ashish.kalra@amd.com, michael.roth@amd.com, nsaenz@amazon.com, anelkz@amazon.de, James.Bottomley@HansenPartnership.com, Melody Wang , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, kvmarm@lists.linux.dev, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, x86@kernel.org, coconut-svsm@lists.linux.dev, joerg.roedel@amd.com Subject: [PATCH 26/60] kvm: Introduce arch-specific plane state Date: Mon, 8 Jun 2026 16:42:18 +0200 Message-ID: <20260608144252.351443-27-joro@8bytes.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260608144252.351443-1-joro@8bytes.org> References: <20260608144252.351443-1-joro@8bytes.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260608_154316_193893_6D43B8FC X-CRM114-Status: GOOD ( 11.87 ) X-BeenThere: kvm-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kvm-riscv" Errors-To: kvm-riscv-bounces+kvm-riscv=archiver.kernel.org@lists.infradead.org From: Joerg Roedel Introduce struct kvm_arch_plane which is per architecture and will be used to store architecture-specific per-plane state. Signed-off-by: Joerg Roedel --- arch/arm64/include/asm/kvm_host.h | 12 ++++++++++++ arch/loongarch/include/asm/kvm_host.h | 12 ++++++++++++ arch/mips/include/asm/kvm_host.h | 12 ++++++++++++ arch/powerpc/include/asm/kvm_host.h | 12 ++++++++++++ arch/riscv/include/asm/kvm_host.h | 12 ++++++++++++ arch/s390/include/asm/kvm_host.h | 12 ++++++++++++ arch/x86/include/asm/kvm_host.h | 12 ++++++++++++ include/linux/kvm_host.h | 2 ++ include/linux/kvm_types.h | 1 + virt/kvm/kvm_main.c | 9 +++++++++ 10 files changed, 96 insertions(+) diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h index 32dc484781f0..e9cca2adb371 100644 --- a/arch/arm64/include/asm/kvm_host.h +++ b/arch/arm64/include/asm/kvm_host.h @@ -306,6 +306,18 @@ enum fgt_group_id { __NR_FGT_GROUP_IDS__ }; +/* Per-plane state of VM */ +struct kvm_arch_plane {}; + +static inline int kvm_arch_plane_init(struct kvm *kvm, + struct kvm_plane *plane, + unsigned plane_level) +{ + return 0; +} + +static inline void kvm_arch_plane_destroy(struct kvm_plane *plane) {} + struct kvm_arch { struct kvm_s2_mmu mmu; diff --git a/arch/loongarch/include/asm/kvm_host.h b/arch/loongarch/include/asm/kvm_host.h index 776bc487a705..225aa87ebbdd 100644 --- a/arch/loongarch/include/asm/kvm_host.h +++ b/arch/loongarch/include/asm/kvm_host.h @@ -116,6 +116,18 @@ struct kvm_phyid_map { struct kvm_phyid_info phys_map[KVM_MAX_PHYID]; }; +/* Per-plane state of VM */ +struct kvm_arch_plane {}; + +static inline int kvm_arch_plane_init(struct kvm *kvm, + struct kvm_plane *plane, + unsigned plane_level) +{ + return 0; +} + +static inline void kvm_arch_plane_destroy(struct kvm_plane *plane) {} + struct kvm_arch { /* Guest physical mm */ kvm_pte_t *pgd; diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h index c14b10821817..b01911eb9064 100644 --- a/arch/mips/include/asm/kvm_host.h +++ b/arch/mips/include/asm/kvm_host.h @@ -172,6 +172,18 @@ struct loongson_kvm_ipi { }; #endif +/* Per-plane state of VM */ +struct kvm_arch_plane {}; + +static inline int kvm_arch_plane_init(struct kvm *kvm, + struct kvm_plane *plane, + unsigned plane_level) +{ + return 0; +} + +static inline void kvm_arch_plane_destroy(struct kvm_plane *plane) {} + struct kvm_arch { /* Guest physical mm */ struct mm_struct gpa_mm; diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h index 2d139c807577..c5b9fbaf34f3 100644 --- a/arch/powerpc/include/asm/kvm_host.h +++ b/arch/powerpc/include/asm/kvm_host.h @@ -269,6 +269,18 @@ struct kvm_hpt_info { struct kvm_resize_hpt; +/* Per-plane state of VM */ +struct kvm_arch_plane {}; + +static inline int kvm_arch_plane_init(struct kvm *kvm, + struct kvm_plane *plane, + unsigned plane_level) +{ + return 0; +} + +static inline void kvm_arch_plane_destroy(struct kvm_plane *plane) {} + /* Flag values for kvm_arch.secure_guest */ #define KVMPPC_SECURE_INIT_START 0x1 /* H_SVM_INIT_START has been called */ #define KVMPPC_SECURE_INIT_DONE 0x2 /* H_SVM_INIT_DONE completed */ diff --git a/arch/riscv/include/asm/kvm_host.h b/arch/riscv/include/asm/kvm_host.h index 75b0a951c1bc..bcbf487d4cb7 100644 --- a/arch/riscv/include/asm/kvm_host.h +++ b/arch/riscv/include/asm/kvm_host.h @@ -76,6 +76,18 @@ struct kvm_vcpu_stat { struct kvm_arch_memory_slot { }; +/* Per-plane state of VM */ +struct kvm_arch_plane {}; + +static inline int kvm_arch_plane_init(struct kvm *kvm, + struct kvm_plane *plane, + unsigned plane_level) +{ + return 0; +} + +static inline void kvm_arch_plane_destroy(struct kvm_plane *plane) {} + struct kvm_arch { /* G-stage vmid */ struct kvm_vmid vmid; diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h index 8a4f4a39f7a2..bb3bfbfd35d8 100644 --- a/arch/s390/include/asm/kvm_host.h +++ b/arch/s390/include/asm/kvm_host.h @@ -638,6 +638,18 @@ struct kvm_s390_pv { struct kvm_s390_mmu_cache; +/* Per-plane state of VM */ +struct kvm_arch_plane {}; + +static inline int kvm_arch_plane_init(struct kvm *kvm, + struct kvm_plane *plane, + unsigned plane_level) +{ + return 0; +} + +static inline void kvm_arch_plane_destroy(struct kvm_plane *plane) {} + struct kvm_arch { struct esca_block *sca; debug_info_t *dbf; diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 43c92f0ada1e..dd95c70bfdba 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1412,6 +1412,18 @@ enum kvm_mmu_type { KVM_NR_MMU_TYPES, }; +/* Per-plane state of VM */ +struct kvm_arch_plane {}; + +static inline int kvm_arch_plane_init(struct kvm *kvm, + struct kvm_plane *plane, + unsigned plane_level) +{ + return 0; +} + +static inline void kvm_arch_plane_destroy(struct kvm_plane *plane) {} + struct kvm_arch { unsigned long n_used_mmu_pages; unsigned long n_requested_mmu_pages; diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 7d06459a06f3..4a0eaa1de479 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -847,6 +847,8 @@ struct kvm_plane { /* Per-Plane VCPU array */ struct xarray vcpu_array; + + struct kvm_arch_plane arch; }; struct kvm { diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h index a568d8e6f4e8..07e82928c948 100644 --- a/include/linux/kvm_types.h +++ b/include/linux/kvm_types.h @@ -42,6 +42,7 @@ struct kvm_interrupt; struct kvm_irq_routing_table; struct kvm_memory_slot; struct kvm_one_reg; +struct kvm_plane; struct kvm_run; struct kvm_userspace_memory_region; struct kvm_vcpu; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f85ddb0fc781..91fb9abf9b31 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1211,13 +1211,22 @@ static struct kvm_plane *kvm_create_plane(struct kvm *kvm, unsigned plane_level) xa_init(&plane->vcpu_array); + if (kvm_arch_plane_init(kvm, plane, plane_level)) + goto out_free_plane; + kvm->planes[plane_level] = plane; return plane; + +out_free_plane: + kfree(plane); + + return NULL; } static void kvm_destroy_one_plane(struct kvm_plane *plane) { + kvm_arch_plane_destroy(plane); kfree(plane); } -- 2.53.0 -- kvm-riscv mailing list kvm-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kvm-riscv