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GET /api/patches/2216004/?format=api
{ "id": 2216004, "url": "http://patchwork.ozlabs.org/api/patches/2216004/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260325164453.72127-10-pbonzini@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260325164453.72127-10-pbonzini@redhat.com>", "list_archive_url": null, "date": "2026-03-25T16:44:43", "name": "[PULL,09/19] target/i386: emulate: add new callbacks", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "880dfc2b847f648704287d86c595f8d094d8b8af", "submitter": { "id": 2701, "url": "http://patchwork.ozlabs.org/api/people/2701/?format=api", "name": "Paolo Bonzini", "email": "pbonzini@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260325164453.72127-10-pbonzini@redhat.com/mbox/", "series": [ { "id": 497473, "url": "http://patchwork.ozlabs.org/api/series/497473/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=497473", "date": "2026-03-25T16:44:34", "name": "[PULL,01/19] tests/functional: preserve PYTHONPATH entries", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/497473/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2216004/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2216004/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com 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z40jqEi+/oLGsm5U5VSnhFmCAhsaWTb82vwrQDRpN1gVQ98Pm+rK0jCD/tdXcDKJ5gHuqgK6NlW\n DekpGhg16UTe03bd+f8CZX6CVSgEYTiAZpFoHIwENsNH4Ufqa9LtOJA3wVV07EzGYGMTd4Eqqen\n h5FNAl7jHpmSx2pALhBz0iqvmR", "X-Received": [ "by 2002:a05:600c:1548:b0:487:338:b4df with SMTP id\n 5b1f17b1804b1-48715fffad0mr67833705e9.15.1774457111618;\n Wed, 25 Mar 2026 09:45:11 -0700 (PDT)", "by 2002:a05:600c:1548:b0:487:338:b4df with SMTP id\n 5b1f17b1804b1-48715fffad0mr67833235e9.15.1774457111068;\n Wed, 25 Mar 2026 09:45:11 -0700 (PDT)" ], "From": "Paolo Bonzini <pbonzini@redhat.com>", "To": "qemu-devel@nongnu.org", "Cc": "Mohamed Mediouni <mohamed@unpredictable.fr>", "Subject": "[PULL 09/19] target/i386: emulate: add new callbacks", "Date": "Wed, 25 Mar 2026 17:44:43 +0100", "Message-ID": "<20260325164453.72127-10-pbonzini@redhat.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260325164453.72127-1-pbonzini@redhat.com>", "References": "<20260325164453.72127-1-pbonzini@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=170.10.129.124;\n envelope-from=pbonzini@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no", "X-Spam_action": "no action", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Mohamed Mediouni <mohamed@unpredictable.fr>\n\nOn Hyper-V fetching some guest registers is really expensive, so\nadd a way to query some state from information provided by Hyper-V\nto save time on vmexits.\n\nSigned-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>\nLink: https://lore.kernel.org/r/20260324151323.74473-7-mohamed@unpredictable.fr\nSigned-off-by: Paolo Bonzini <pbonzini@redhat.com>\n---\n target/i386/emulate/x86_emu.h | 3 +++\n target/i386/emulate/x86_helpers.c | 6 ++++++\n target/i386/emulate/x86_mmu.c | 3 +++\n 3 files changed, 12 insertions(+)", "diff": "diff --git a/target/i386/emulate/x86_emu.h b/target/i386/emulate/x86_emu.h\nindex 0f284b0c3d1..4ed970bd536 100644\n--- a/target/i386/emulate/x86_emu.h\n+++ b/target/i386/emulate/x86_emu.h\n@@ -32,6 +32,9 @@ struct x86_emul_ops {\n int size, int count);\n void (*simulate_rdmsr)(CPUState *cs);\n void (*simulate_wrmsr)(CPUState *cs);\n+ bool (*is_protected_mode)(CPUState *cpu);\n+ bool (*is_long_mode)(CPUState *cpu);\n+ bool (*is_user_mode)(CPUState *cpu);\n };\n \n extern const struct x86_emul_ops *emul_ops;\ndiff --git a/target/i386/emulate/x86_helpers.c b/target/i386/emulate/x86_helpers.c\nindex 024f9a2afcf..ebbf40f2b05 100644\n--- a/target/i386/emulate/x86_helpers.c\n+++ b/target/i386/emulate/x86_helpers.c\n@@ -211,6 +211,9 @@ bool x86_is_protected(CPUState *cpu)\n X86CPU *x86_cpu = X86_CPU(cpu);\n CPUX86State *env = &x86_cpu->env;\n uint64_t cr0 = env->cr[0];\n+ if (emul_ops->is_protected_mode) {\n+ return emul_ops->is_protected_mode(cpu);\n+ }\n \n return cr0 & CR0_PE_MASK;\n }\n@@ -234,6 +237,9 @@ bool x86_is_long_mode(CPUState *cpu)\n uint64_t efer = env->efer;\n uint64_t lme_lma = (MSR_EFER_LME | MSR_EFER_LMA);\n \n+ if (emul_ops->is_long_mode) {\n+ return emul_ops->is_long_mode(cpu);\n+ }\n return ((efer & lme_lma) == lme_lma);\n }\n \ndiff --git a/target/i386/emulate/x86_mmu.c b/target/i386/emulate/x86_mmu.c\nindex 4e39bae025e..670939acdba 100644\n--- a/target/i386/emulate/x86_mmu.c\n+++ b/target/i386/emulate/x86_mmu.c\n@@ -49,6 +49,9 @@\n \n static bool is_user(CPUState *cpu)\n {\n+ if (emul_ops->is_user_mode) {\n+ return emul_ops->is_user_mode(cpu);\n+ }\n return false;\n }\n \n", "prefixes": [ "PULL", "09/19" ] }