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[84.226.111.173]) by smtp.gmail.com with ESMTPSA id u9sm6358687edt.60.2021.08.10.06.16.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Aug 2021 06:16:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=wMGuF8Uwd5O5Dq/Cg79i1PrFzIYUFnQFZIVkrVyi4mU=; b=Nz0esK+87/8HQs47XANBZxL6v5bW7njag5+9EwTx3J37/r5G5rGDiTH749Tba17SNF Bixh031FF97BewGNpKSxAu5AnK1t509aK2QxzFXDZPPqBQe4Vdj6ir6ocM/IrloCgK9Y ZdRLFtYM03tC6dos+NSkU7pG3/UBGLc69oY21msa8w5cyBt+kxEC9aaVrdd5tFmoHbVv IBQsyTHlDeZivILDnXL44QeMC1MbodWGxxlWhBVZVA/qhchaM3UXdQyc4bYoDqJaQ0bY +2OMvUe9dRVW6PtWI0gSUIUIlUl7ZxLr9ESJe0625L5nJiQOrAQb43pGUlqM68khnlwm DHYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=wMGuF8Uwd5O5Dq/Cg79i1PrFzIYUFnQFZIVkrVyi4mU=; b=g+An/zfaVTtqjWO/5eqL1HG980UqdF0qGklNvkDxxFTT1euwQ2L3q/TejQ8zI5obTv xFtmQBs9NRvmI8nNwnU97WqNjsdFWTVl7TjUN2COwY9+KUEmoxXxNHVXfDpNeGpwI7pt k/D+bohf4wQrtXiR6hd2pRuyU5QwuhSkChcdkg55YqEG0nwrKGMynO0xYQPmPM4qNC5K cTzxyJYV1w0FNfS59jjxQbm0dC4a/sfsB/KNUDPaaMscfsmDueNXW9FRblcV6X0ieopb HzABay73erpWkFZDkEcPvstiXNiutsa2dOxRNJHd8euX7/iZlqS93RrDJbppZ9BxmvHA Jw5w== X-Gm-Message-State: AOAM532A2YTt81i8ZAkm6bmQ0J8OwuV4mcDA7U2wBcPmIGJ0UV6/1xDV 0BxB9vsReGeCl3lq5wo20zEcHw== X-Google-Smtp-Source: ABdhPJxMmGAXPZXrcmDGg7f6AsDCihURJETd/l98YlF/3hG3w94cMM4arDU55SNKrNrTmZwk7mX/ug== X-Received: by 2002:a05:6402:4245:: with SMTP id g5mr4958885edb.222.1628601392670; Tue, 10 Aug 2021 06:16:32 -0700 (PDT) From: Jean-Philippe Brucker To: pbonzini@redhat.com Subject: [PATCH] vl: fix machine option containing underscores Date: Tue, 10 Aug 2021 15:12:31 +0200 Message-Id: <20210810131228.2332728-1-jean-philippe@linaro.org> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::52e; envelope-from=jean-philippe@linaro.org; helo=mail-ed1-x52e.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, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jean-Philippe Brucker , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1628601472432100001 Content-Type: text/plain; charset="utf-8" Since commit d8fb7d0969d5 ("vl: switch -M parsing to keyval"), keyval_dashify() replaces all underscores with dashes in machine options. As a result the machine option "default_bus_bypass_iommu", which was introduced in the same release (c9e96b04fc19 6d7a85483a06), is not recognized: $ qemu-system-aarch64 -M virt,default_bus_bypass_iommu=3Don qemu-system-aarch64: Property 'virt-6.1-machine.default-bus-bypass-iommu' n= ot found Before that commit, dashification was only applied temporarily within machine_set_property() to check the legacy options. Restore that behavior by explicitly checking for aliases of these options instead of transforming all machine options. Fixes: d8fb7d0969d5 ("vl: switch -M parsing to keyval") Signed-off-by: Jean-Philippe Brucker --- My first take was renaming default_bus_bypass_iommu, since it's the only machine option with underscores, but then we'd want to rename bypass_iommu as well for consistency and update all the docs. I prefer this but don't mind either way. --- softmmu/vl.c | 56 +++++++++++++++++++--------------------------------- 1 file changed, 20 insertions(+), 36 deletions(-) diff --git a/softmmu/vl.c b/softmmu/vl.c index 5ca11e7469..3d3aa35279 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -1660,41 +1660,25 @@ static int object_parse_property_opt(Object *obj, return 0; } =20 -/* *Non*recursively replace underscores with dashes in QDict keys. */ -static void keyval_dashify(QDict *qdict, Error **errp) +static const char *find_option_alias(QDict *qdict, const char *key, + const char *alias, const char **value) { - const QDictEntry *ent, *next; - char *p; - - for (ent =3D qdict_first(qdict); ent; ent =3D next) { - g_autofree char *new_key =3D NULL; - - next =3D qdict_next(qdict, ent); - if (!strchr(ent->key, '_')) { - continue; - } - new_key =3D g_strdup(ent->key); - for (p =3D new_key; *p; p++) { - if (*p =3D=3D '_') { - *p =3D '-'; - } - } - if (qdict_haskey(qdict, new_key)) { - error_setg(errp, "Conflict between '%s' and '%s'", ent->key, n= ew_key); - return; - } - qobject_ref(ent->value); - qdict_put_obj(qdict, new_key, ent->value); - qdict_del(qdict, ent->key); + *value =3D qdict_get_try_str(qdict, key); + if (*value) { + return key; + } + *value =3D qdict_get_try_str(qdict, alias); + if (*value) { + return alias; } + return NULL; } =20 static void qemu_apply_legacy_machine_options(QDict *qdict) { + const char *key; const char *value; =20 - keyval_dashify(qdict, &error_fatal); - /* Legacy options do not correspond to MachineState properties. */ value =3D qdict_get_try_str(qdict, "accel"); if (value) { @@ -1702,27 +1686,27 @@ static void qemu_apply_legacy_machine_options(QDict= *qdict) qdict_del(qdict, "accel"); } =20 - value =3D qdict_get_try_str(qdict, "igd-passthru"); - if (value) { + key =3D find_option_alias(qdict, "igd-passthru", "igd_passthru", &valu= e); + if (key) { object_register_sugar_prop(ACCEL_CLASS_NAME("xen"), "igd-passthru"= , value, false); - qdict_del(qdict, "igd-passthru"); + qdict_del(qdict, key); } =20 - value =3D qdict_get_try_str(qdict, "kvm-shadow-mem"); - if (value) { + key =3D find_option_alias(qdict, "kvm-shadow-mem", "kvm_shadow_mem", &= value); + if (key) { object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kvm-shadow-me= m", value, false); - qdict_del(qdict, "kvm-shadow-mem"); + qdict_del(qdict, key); } =20 - value =3D qdict_get_try_str(qdict, "kernel-irqchip"); - if (value) { + key =3D find_option_alias(qdict, "kernel-irqchip", "kernel_irqchip", &= value); + if (key) { object_register_sugar_prop(ACCEL_CLASS_NAME("kvm"), "kernel-irqchi= p", value, false); object_register_sugar_prop(ACCEL_CLASS_NAME("whpx"), "kernel-irqch= ip", value, false); - qdict_del(qdict, "kernel-irqchip"); + qdict_del(qdict, key); } } =20 --=20 2.32.0