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GET /api/patches/2227574/?format=api
{ "id": 2227574, "url": "http://patchwork.ozlabs.org/api/patches/2227574/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260424000544.9617-4-lucaaamaral@gmail.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": "<20260424000544.9617-4-lucaaamaral@gmail.com>", "list_archive_url": null, "date": "2026-04-24T00:05:44", "name": "[v5,3/3] target/arm/hvf: configure IPA granule on macOS 26", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "239b1ece83676a83ea0c8320ec978c3051d5deed", "submitter": { "id": 92822, "url": "http://patchwork.ozlabs.org/api/people/92822/?format=api", "name": "Lucas Amaral", "email": "lucaaamaral@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260424000544.9617-4-lucaaamaral@gmail.com/mbox/", "series": [ { "id": 501263, "url": "http://patchwork.ozlabs.org/api/series/501263/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=501263", "date": "2026-04-24T00:05:43", "name": "hvf: map granule abstraction, configurable IPA, and MAP_FIXED alignment fix", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/501263/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2227574/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2227574/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 (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=HkUuW2i9;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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helo=mail-dy1-x1335.google.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, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=unavailable 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": "Read the ipa-granule property (set by hvf_accel_init) and configure\nthe HVF stage-2 translation granule via hv_vm_config_set_ipa_granule()\non macOS 26+. When ipa-granule=4k, use HV_IPA_GRANULE_4KB to allow\nHVF to map memory at 4KB granularity, matching 4KB-page guests on\nhosts with larger page sizes.\n\nIf macOS < 26 and a sub-host-page granule was requested, warn and\nfall back to the host page size.\n\nSigned-off-by: Lucas Amaral <lucaaamaral@gmail.com>\n---\n target/arm/hvf/hvf.c | 32 ++++++++++++++++++++++++++++++++\n 1 file changed, 32 insertions(+)", "diff": "diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c\nindex 1b5860c7..f506fc01 100644\n--- a/target/arm/hvf/hvf.c\n+++ b/target/arm/hvf/hvf.c\n@@ -1270,6 +1270,38 @@ hv_return_t hvf_arch_vm_create(MachineState *ms, uint32_t pa_range)\n }\n chosen_ipa_bit_size = pa_range;\n \n+ /*\n+ * Configure IPA granule from the ipa-granule property.\n+ * hvf_get_map_granule() was set by hvf_accel_init() before this call.\n+ */\n+ {\n+ uint64_t granule = hvf_get_map_granule();\n+ bool granule_set = false;\n+\n+#if defined(__MAC_OS_X_VERSION_MAX_ALLOWED) && \\\n+ (__MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_26_0)\n+ if (__builtin_available(macOS 26, *)) {\n+ hv_ipa_granule_t hv_gran = (granule <= 4 * KiB)\n+ ? HV_IPA_GRANULE_4KB : HV_IPA_GRANULE_16KB;\n+ ret = hv_vm_config_set_ipa_granule(config, hv_gran);\n+ if (ret != HV_SUCCESS) {\n+ error_report(\"HVF: failed to set IPA granule: %s\",\n+ hvf_return_string(ret));\n+ goto cleanup;\n+ }\n+ granule_set = true;\n+ }\n+#endif\n+\n+ if (!granule_set && granule < qemu_real_host_page_size()) {\n+ warn_report(\"HVF: ipa-granule=%zuKB requested but macOS < 26; \"\n+ \"falling back to host page size (%zuKB)\",\n+ (size_t)(granule / KiB),\n+ (size_t)(qemu_real_host_page_size() / KiB));\n+ hvf_set_map_granule(qemu_real_host_page_size());\n+ }\n+ }\n+\n ret = hv_vm_create(config);\n \n cleanup:\n", "prefixes": [ "v5", "3/3" ] }