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GET /api/1.2/patches/2220755/?format=api
{ "id": 2220755, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2220755/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260408001137.3290444-4-peter.fang@intel.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.2/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20260408001137.3290444-4-peter.fang@intel.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20260408001137.3290444-4-peter.fang@intel.com/", "date": "2026-04-08T00:11:30", "name": "[v2,3/3] KVM: Take gpa_t in kvm_vcpu_map[_readonly]()", "commit_ref": null, "pull_url": null, "state": "handled-elsewhere", "archived": false, "hash": "03e76ab3a1e9a067d00928a502efccc49fff6205", "submitter": { "id": 92968, "url": "http://patchwork.ozlabs.org/api/1.2/people/92968/?format=api", "name": "Peter Fang", "email": "peter.fang@intel.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260408001137.3290444-4-peter.fang@intel.com/mbox/", "series": [ { "id": 499049, "url": "http://patchwork.ozlabs.org/api/1.2/series/499049/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=499049", "date": "2026-04-08T00:11:27", "name": "KVM: Fix and clean up kvm_vcpu_map[_readonly]() usages", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/499049/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2220755/comments/", "check": "fail", "checks": "http://patchwork.ozlabs.org/api/patches/2220755/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "\n <linuxppc-dev+bounces-19455-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=lDaI+g92;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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a=\"76462876\"", "E=Sophos;i=\"6.23,166,1770624000\";\n d=\"scan'208\";a=\"76462876\"", "E=Sophos;i=\"6.23,166,1770624000\";\n d=\"scan'208\";a=\"229981380\"" ], "X-ExtLoop1": "1", "From": "Peter Fang <peter.fang@intel.com>", "To": "Paolo Bonzini <pbonzini@redhat.com>, Sean Christopherson\n\t<seanjc@google.com>, Madhavan Srinivasan <maddy@linux.ibm.com>, \"Nicholas\n Piggin\" <npiggin@gmail.com>", "CC": "Yosry Ahmed <yosry@kernel.org>, Ritesh Harjani <ritesh.list@gmail.com>,\n\tMichael Ellerman <mpe@ellerman.id.au>, \"Christophe Leroy (CS GROUP)\"\n\t<chleroy@kernel.org>, Thomas Gleixner <tglx@kernel.org>, Ingo Molnar\n\t<mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Dave Hansen\n\t<dave.hansen@linux.intel.com>, <x86@kernel.org>, \"H. Peter Anvin\"\n\t<hpa@zytor.com>, <kvm@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>,\n\t<linux-kernel@vger.kernel.org>, Peter Fang <peter.fang@intel.com>", "Subject": "[PATCH v2 3/3] KVM: Take gpa_t in kvm_vcpu_map[_readonly]()", "Date": "Tue, 7 Apr 2026 17:11:30 -0700", "Message-ID": "<20260408001137.3290444-4-peter.fang@intel.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260408001137.3290444-1-peter.fang@intel.com>", "References": "<20260408001137.3290444-1-peter.fang@intel.com>", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-ClientProxiedBy": "BYAPR04CA0011.namprd04.prod.outlook.com\n (2603:10b6:a03:40::24) To SJ0PR11MB5645.namprd11.prod.outlook.com\n (2603:10b6:a03:3b9::19)", "X-Mailing-List": "linuxppc-dev@lists.ozlabs.org", "List-Id": "<linuxppc-dev.lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev+help@lists.ozlabs.org>", "List-Owner": "<mailto:linuxppc-dev+owner@lists.ozlabs.org>", "List-Post": 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vUfdY2U4X0bNqilDf7aNxILG5w4ccEeTXjb5lmFowK+RgylaEusQQfPHI7Arw+3MB+s9LjUYwXmX6DeFxaZtkQ==", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "BL3PR11MB6529", "X-OriginatorOrg": "intel.com", "X-Spam-Status": "No, score=-2.4 required=3.0 tests=ARC_INVALID,ARC_SIGNED,\n\tDKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,\n\tRCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "Move the conversion from a gpa_t to a gfn_t into kvm_vcpu_map() and\nkvm_vcpu_map_readonly() so that they take a gpa_t directly, reducing\nboilerplate at call sites.\n\n__kvm_vcpu_map() still takes a gfn_t because guest page mapping is\nfundamentally GFN-based.\n\nNo functional change intended.\n\nCompile-tested on x86 and ppc, which are the current users of these\ninterfaces.\n\nSuggested-by: Yosry Ahmed <yosry@kernel.org>\nSigned-off-by: Peter Fang <peter.fang@intel.com>\n---\n arch/powerpc/kvm/book3s_pr.c | 2 +-\n arch/x86/kvm/svm/nested.c | 4 ++--\n arch/x86/kvm/svm/sev.c | 2 +-\n arch/x86/kvm/svm/svm.c | 8 ++++----\n arch/x86/kvm/vmx/nested.c | 11 +++++------\n include/linux/kvm_host.h | 8 ++++----\n 6 files changed, 17 insertions(+), 18 deletions(-)", "diff": "diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c\nindex 2ba2dd26a7ea..45dea4064618 100644\n--- a/arch/powerpc/kvm/book3s_pr.c\n+++ b/arch/powerpc/kvm/book3s_pr.c\n@@ -644,7 +644,7 @@ static void kvmppc_patch_dcbz(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)\n \tu32 *page;\n \tint i, r;\n \n-\tr = kvm_vcpu_map(vcpu, pte->raddr >> PAGE_SHIFT, &map);\n+\tr = kvm_vcpu_map(vcpu, pte->raddr, &map);\n \tif (r)\n \t\treturn;\n \ndiff --git a/arch/x86/kvm/svm/nested.c b/arch/x86/kvm/svm/nested.c\nindex b36c33255bed..f168b54828bb 100644\n--- a/arch/x86/kvm/svm/nested.c\n+++ b/arch/x86/kvm/svm/nested.c\n@@ -1019,7 +1019,7 @@ int nested_svm_vmrun(struct kvm_vcpu *vcpu)\n \t}\n \n \tvmcb12_gpa = svm->vmcb->save.rax;\n-\tret = kvm_vcpu_map(vcpu, gpa_to_gfn(vmcb12_gpa), &map);\n+\tret = kvm_vcpu_map(vcpu, vmcb12_gpa, &map);\n \tif (ret == -EINVAL) {\n \t\tkvm_inject_gp(vcpu, 0);\n \t\treturn 1;\n@@ -1134,7 +1134,7 @@ int nested_svm_vmexit(struct vcpu_svm *svm)\n \tstruct kvm_host_map map;\n \tint rc;\n \n-\trc = kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.vmcb12_gpa), &map);\n+\trc = kvm_vcpu_map(vcpu, svm->nested.vmcb12_gpa, &map);\n \tif (rc) {\n \t\tif (rc == -EINVAL)\n \t\t\tkvm_inject_gp(vcpu, 0);\ndiff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c\nindex 3f9c1aa39a0a..524607bb8cc2 100644\n--- a/arch/x86/kvm/svm/sev.c\n+++ b/arch/x86/kvm/svm/sev.c\n@@ -4405,7 +4405,7 @@ int sev_handle_vmgexit(struct kvm_vcpu *vcpu)\n \t\treturn 1;\n \t}\n \n-\tif (kvm_vcpu_map(vcpu, ghcb_gpa >> PAGE_SHIFT, &svm->sev_es.ghcb_map)) {\n+\tif (kvm_vcpu_map(vcpu, ghcb_gpa, &svm->sev_es.ghcb_map)) {\n \t\t/* Unable to map GHCB from guest */\n \t\tvcpu_unimpl(vcpu, \"vmgexit: error mapping GHCB [%#llx] from guest\\n\",\n \t\t\t ghcb_gpa);\ndiff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c\nindex e6477affac9a..823c6a6f3594 100644\n--- a/arch/x86/kvm/svm/svm.c\n+++ b/arch/x86/kvm/svm/svm.c\n@@ -2159,7 +2159,7 @@ static int vmload_vmsave_interception(struct kvm_vcpu *vcpu, bool vmload)\n \tif (nested_svm_check_permissions(vcpu))\n \t\treturn 1;\n \n-\tret = kvm_vcpu_map(vcpu, gpa_to_gfn(svm->vmcb->save.rax), &map);\n+\tret = kvm_vcpu_map(vcpu, svm->vmcb->save.rax, &map);\n \tif (ret) {\n \t\tif (ret == -EINVAL)\n \t\t\tkvm_inject_gp(vcpu, 0);\n@@ -4820,7 +4820,7 @@ static int svm_enter_smm(struct kvm_vcpu *vcpu, union kvm_smram *smram)\n \t * that, see svm_prepare_switch_to_guest()) which must be\n \t * preserved.\n \t */\n-\tif (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr), &map_save))\n+\tif (kvm_vcpu_map(vcpu, svm->nested.hsave_msr, &map_save))\n \t\treturn 1;\n \n \tBUILD_BUG_ON(offsetof(struct vmcb, save) != 0x400);\n@@ -4854,11 +4854,11 @@ static int svm_leave_smm(struct kvm_vcpu *vcpu, const union kvm_smram *smram)\n \tif (!(smram64->efer & EFER_SVME))\n \t\treturn 1;\n \n-\tif (kvm_vcpu_map(vcpu, gpa_to_gfn(smram64->svm_guest_vmcb_gpa), &map))\n+\tif (kvm_vcpu_map(vcpu, smram64->svm_guest_vmcb_gpa, &map))\n \t\treturn 1;\n \n \tret = 1;\n-\tif (kvm_vcpu_map(vcpu, gpa_to_gfn(svm->nested.hsave_msr), &map_save))\n+\tif (kvm_vcpu_map(vcpu, svm->nested.hsave_msr, &map_save))\n \t\tgoto unmap_map;\n \n \tif (svm_allocate_nested(svm))\ndiff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c\nindex 937aeb474af7..ee3ff76a8678 100644\n--- a/arch/x86/kvm/vmx/nested.c\n+++ b/arch/x86/kvm/vmx/nested.c\n@@ -696,7 +696,7 @@ static inline bool nested_vmx_prepare_msr_bitmap(struct kvm_vcpu *vcpu,\n \t\t\treturn true;\n \t}\n \n-\tif (kvm_vcpu_map_readonly(vcpu, gpa_to_gfn(vmcs12->msr_bitmap), &map))\n+\tif (kvm_vcpu_map_readonly(vcpu, vmcs12->msr_bitmap, &map))\n \t\treturn false;\n \n \tmsr_bitmap_l1 = (unsigned long *)map.hva;\n@@ -2138,8 +2138,7 @@ static enum nested_evmptrld_status nested_vmx_handle_enlightened_vmptrld(\n \n \t\tnested_release_evmcs(vcpu);\n \n-\t\tif (kvm_vcpu_map(vcpu, gpa_to_gfn(evmcs_gpa),\n-\t\t\t\t &vmx->nested.hv_evmcs_map))\n+\t\tif (kvm_vcpu_map(vcpu, evmcs_gpa, &vmx->nested.hv_evmcs_map))\n \t\t\treturn EVMPTRLD_ERROR;\n \n \t\tvmx->nested.hv_evmcs = vmx->nested.hv_evmcs_map.hva;\n@@ -3437,7 +3436,7 @@ static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu)\n \tif (nested_cpu_has2(vmcs12, SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES)) {\n \t\tmap = &vmx->nested.apic_access_page_map;\n \n-\t\tif (!kvm_vcpu_map(vcpu, gpa_to_gfn(vmcs12->apic_access_addr), map)) {\n+\t\tif (!kvm_vcpu_map(vcpu, vmcs12->apic_access_addr, map)) {\n \t\t\tvmcs_write64(APIC_ACCESS_ADDR, pfn_to_hpa(map->pfn));\n \t\t} else {\n \t\t\tpr_debug_ratelimited(\"%s: no backing for APIC-access address in vmcs12\\n\",\n@@ -3453,7 +3452,7 @@ static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu)\n \tif (nested_cpu_has(vmcs12, CPU_BASED_TPR_SHADOW)) {\n \t\tmap = &vmx->nested.virtual_apic_map;\n \n-\t\tif (!kvm_vcpu_map(vcpu, gpa_to_gfn(vmcs12->virtual_apic_page_addr), map)) {\n+\t\tif (!kvm_vcpu_map(vcpu, vmcs12->virtual_apic_page_addr, map)) {\n \t\t\tvmcs_write64(VIRTUAL_APIC_PAGE_ADDR, pfn_to_hpa(map->pfn));\n \t\t} else if (nested_cpu_has(vmcs12, CPU_BASED_CR8_LOAD_EXITING) &&\n \t\t nested_cpu_has(vmcs12, CPU_BASED_CR8_STORE_EXITING) &&\n@@ -3479,7 +3478,7 @@ static bool nested_get_vmcs12_pages(struct kvm_vcpu *vcpu)\n \tif (nested_cpu_has_posted_intr(vmcs12)) {\n \t\tmap = &vmx->nested.pi_desc_map;\n \n-\t\tif (!kvm_vcpu_map(vcpu, gpa_to_gfn(vmcs12->posted_intr_desc_addr), map)) {\n+\t\tif (!kvm_vcpu_map(vcpu, vmcs12->posted_intr_desc_addr, map)) {\n \t\t\tvmx->nested.pi_desc =\n \t\t\t\t(struct pi_desc *)(((void *)map->hva) +\n \t\t\t\toffset_in_page(vmcs12->posted_intr_desc_addr));\ndiff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h\nindex 484378cfdcc0..893a8c76a665 100644\n--- a/include/linux/kvm_host.h\n+++ b/include/linux/kvm_host.h\n@@ -1897,16 +1897,16 @@ int __kvm_vcpu_map(struct kvm_vcpu *vcpu, gfn_t gfn, struct kvm_host_map *map,\n \t\t bool writable);\n void kvm_vcpu_unmap(struct kvm_vcpu *vcpu, struct kvm_host_map *map);\n \n-static inline int kvm_vcpu_map(struct kvm_vcpu *vcpu, gfn_t gfn,\n+static inline int kvm_vcpu_map(struct kvm_vcpu *vcpu, gpa_t gpa,\n \t\t\t struct kvm_host_map *map)\n {\n-\treturn __kvm_vcpu_map(vcpu, gfn, map, true);\n+\treturn __kvm_vcpu_map(vcpu, gpa_to_gfn(gpa), map, true);\n }\n \n-static inline int kvm_vcpu_map_readonly(struct kvm_vcpu *vcpu, gfn_t gfn,\n+static inline int kvm_vcpu_map_readonly(struct kvm_vcpu *vcpu, gpa_t gpa,\n \t\t\t\t\tstruct kvm_host_map *map)\n {\n-\treturn __kvm_vcpu_map(vcpu, gfn, map, false);\n+\treturn __kvm_vcpu_map(vcpu, gpa_to_gfn(gpa), map, false);\n }\n \n static inline void kvm_vcpu_map_mark_dirty(struct kvm_vcpu *vcpu,\n", "prefixes": [ "v2", "3/3" ] }