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Sun, 20 Feb 2022 11:27:24 -0800 (PST) From: Liav Albani To: qemu-devel@nongnu.org Subject: [PATCH 1/2] hw/isa: add function to check for existence of device by its type Date: Sun, 20 Feb 2022 21:25:48 +0200 Message-Id: <20220220192549.591703-2-liavalb@gmail.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220220192549.591703-1-liavalb@gmail.com> References: <20220220192549.591703-1-liavalb@gmail.com> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::434 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::434; envelope-from=liavalb@gmail.com; helo=mail-wr1-x434.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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, FREEMAIL_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ani@anisinha.ca, imammedo@redhat.com, Liav Albani , mst@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Liav Albani --- hw/isa/isa-bus.c | 17 +++++++++++++++++ include/hw/isa/isa.h | 1 + 2 files changed, 18 insertions(+) diff --git a/hw/isa/isa-bus.c b/hw/isa/isa-bus.c index 6c31398dda..39d1768797 100644 --- a/hw/isa/isa-bus.c +++ b/hw/isa/isa-bus.c @@ -222,6 +222,23 @@ void isa_build_aml(ISABus *bus, Aml *scope) } } +bool isa_check_device_existence(const char *typename) +{ + assert(isabus != NULL); + + BusChild *kid; + ISADevice *dev; + + QTAILQ_FOREACH(kid, &isabus->parent_obj.children, sibling) { + dev = ISA_DEVICE(kid->child); + const char *object_type = object_get_typename(OBJECT(dev)); + if (object_type && strcmp(object_type, typename) == 0) { + return true; + } + } + return false; +} + static void isabus_dev_print(Monitor *mon, DeviceState *dev, int indent) { ISADevice *d = ISA_DEVICE(dev); diff --git a/include/hw/isa/isa.h b/include/hw/isa/isa.h index d4417b34b6..65f0c7e28c 100644 --- a/include/hw/isa/isa.h +++ b/include/hw/isa/isa.h @@ -99,6 +99,7 @@ IsaDma *isa_get_dma(ISABus *bus, int nchan); MemoryRegion *isa_address_space(ISADevice *dev); MemoryRegion *isa_address_space_io(ISADevice *dev); ISADevice *isa_new(const char *name); +bool isa_check_device_existence(const char *typename); ISADevice *isa_try_new(const char *name); bool isa_realize_and_unref(ISADevice *dev, ISABus *bus, Error **errp); ISADevice *isa_create_simple(ISABus *bus, const char *name);