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GET /api/patches/2194162/?format=api
{ "id": 2194162, "url": "http://patchwork.ozlabs.org/api/patches/2194162/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260206221908.1451528-8-pierrick.bouvier@linaro.org/", "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": "<20260206221908.1451528-8-pierrick.bouvier@linaro.org>", "list_archive_url": null, "date": "2026-02-06T22:19:06", "name": "[v5,7/9] hw/virtio/vhost-user: make compilation unit common", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "db57a19d4dc0cf64d5ff0e5a0329e39921fec8dd", "submitter": { "id": 85798, "url": "http://patchwork.ozlabs.org/api/people/85798/?format=api", "name": "Pierrick Bouvier", "email": "pierrick.bouvier@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260206221908.1451528-8-pierrick.bouvier@linaro.org/mbox/", "series": [ { "id": 491346, "url": "http://patchwork.ozlabs.org/api/series/491346/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=491346", "date": "2026-02-06T22:19:02", "name": "single-binary: hw/virtio", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/491346/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2194162/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2194162/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=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=YmTYRJ1b;\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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Tsirkin\" <mst@redhat.com>,\n Pierrick Bouvier <pierrick.bouvier@linaro.org>, stefanha@redhat.com,\n richard.henderson@linaro.org, qemu-ppc@nongnu.org", "Subject": "[PATCH v5 7/9] hw/virtio/vhost-user: make compilation unit common", "Date": "Fri, 6 Feb 2026 14:19:06 -0800", "Message-ID": "<20260206221908.1451528-8-pierrick.bouvier@linaro.org>", "X-Mailer": "git-send-email 2.47.3", "In-Reply-To": "<20260206221908.1451528-1-pierrick.bouvier@linaro.org>", "References": "<20260206221908.1451528-1-pierrick.bouvier@linaro.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::62e;\n envelope-from=pierrick.bouvier@linaro.org; helo=mail-pl1-x62e.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,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n 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": "PPC architectures use a custom value for VHOST_USER_MAX_RAM_SLOTS (32\ninstead of 512).\n\nvhost_user struct and several functions use VHOST_USER_MAX_RAM_SLOTS to\ndefine stack allocated buffers. To avoid changing all functions to use\nheap allocated buffers, we keep this max, and simply add a\ntarget_base_ppc() conditional for the single place where size really\nmatters.\n\nSigned-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>\n---\n hw/virtio/vhost-user.c | 11 ++++-------\n hw/virtio/meson.build | 3 +--\n 2 files changed, 5 insertions(+), 9 deletions(-)", "diff": "diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c\nindex bb8f8eab77e..a8907cca74e 100644\n--- a/hw/virtio/vhost-user.c\n+++ b/hw/virtio/vhost-user.c\n@@ -44,13 +44,8 @@\n #define VHOST_USER_F_PROTOCOL_FEATURES 30\n #define VHOST_USER_BACKEND_MAX_FDS 8\n \n-#if defined(TARGET_PPC) || defined(TARGET_PPC64)\n-#include \"hw/ppc/spapr.h\"\n-#define VHOST_USER_MAX_RAM_SLOTS SPAPR_MAX_RAM_SLOTS\n-\n-#else\n+#include \"hw/ppc/spapr_common.h\"\n #define VHOST_USER_MAX_RAM_SLOTS 512\n-#endif\n \n /*\n * Maximum size of virtio device config space\n@@ -2287,7 +2282,9 @@ static int vhost_user_backend_init(struct vhost_dev *dev, void *opaque,\n return -EINVAL;\n }\n \n- u->user->memory_slots = MIN(ram_slots, VHOST_USER_MAX_RAM_SLOTS);\n+ const uint64_t vhost_user_max_ram_slots = target_base_ppc() ?\n+ SPAPR_MAX_RAM_SLOTS : VHOST_USER_MAX_RAM_SLOTS;\n+ u->user->memory_slots = MIN(ram_slots, vhost_user_max_ram_slots);\n }\n }\n \ndiff --git a/hw/virtio/meson.build b/hw/virtio/meson.build\nindex 6675b63ce65..ae33d403cf7 100644\n--- a/hw/virtio/meson.build\n+++ b/hw/virtio/meson.build\n@@ -17,8 +17,7 @@ if have_vhost\n system_virtio_ss.add(files('vhost.c'))\n system_virtio_ss.add(files('vhost-backend.c', 'vhost-iova-tree.c'))\n if have_vhost_user\n- # fixme - this really should be generic\n- specific_virtio_ss.add(files('vhost-user.c'))\n+ system_virtio_ss.add(files('vhost-user.c'))\n system_virtio_ss.add(files('vhost-user-base.c'))\n \n # MMIO Stubs\n", "prefixes": [ "v5", "7/9" ] }