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Wed, 25 Jan 2023 02:44:52 -0600 From: Vikram Garhwal To: CC: , , , , Oleksandr Tyshchenko , Peter Maydell , "open list:ARM TCG CPUs" Subject: [QEMU][PATCH v3 04/12] xen_arm: Add "accel = xen" and drop extra interface openings Date: Wed, 25 Jan 2023 00:43:49 -0800 Message-ID: <20230125084356.6684-5-vikram.garhwal@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230125084356.6684-1-vikram.garhwal@amd.com> References: <20230125084356.6684-1-vikram.garhwal@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT115:EE_|SJ0PR12MB5674:EE_ X-MS-Office365-Filtering-Correlation-Id: 73687c1e-53a1-42a7-fe2f-08dafeb06e6d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17; 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envelope-from=vikram.garhwal@amd.com; helo=NAM11-BN8-obe.outbound.protection.outlook.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, RCVD_IN_MSPIKE_H2=-0.001, 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: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org In order to use virtio backends we need to make sure that Xen accelerator is enabled (xen_enabled() returns true) as the memory/cache systems check for xen_enabled() to perform specific actions. Without that the xen-mapcache (which is needed for mapping guest memory) is not in use. Also drop extra interface opening as this is already done in xen-all.c (so drop xen_init_ioreq() completely) and skip virtio/tpm initialization if device emulation is not available. Signed-off-by: Oleksandr Tyshchenko Signed-off-by: Vikram Garhwal Reviewed-by: Stefano Stabellini --- hw/arm/xen_arm.c | 29 ++--------------------------- 1 file changed, 2 insertions(+), 27 deletions(-) diff --git a/hw/arm/xen_arm.c b/hw/arm/xen_arm.c index fde919df29..4ac425a3c5 100644 --- a/hw/arm/xen_arm.c +++ b/hw/arm/xen_arm.c @@ -137,30 +137,6 @@ void qmp_xen_set_global_dirty_log(bool enable, Error **errp) { } -static int xen_init_ioreq(XenIOState *state, unsigned int max_cpus) -{ - xen_dmod = xendevicemodel_open(0, 0); - xen_xc = xc_interface_open(0, 0, 0); - - if (xen_xc == NULL) { - perror("xen: can't open xen interface\n"); - return -1; - } - - xen_fmem = xenforeignmemory_open(0, 0); - if (xen_fmem == NULL) { - perror("xen: can't open xen fmem interface\n"); - xc_interface_close(xen_xc); - return -1; - } - - xen_register_ioreq(state, max_cpus, xen_memory_listener); - - xenstore_record_dm_state(xenstore, "running"); - - return 0; -} - static void xen_enable_tpm(void) { #ifdef CONFIG_TPM @@ -198,9 +174,7 @@ static void xen_arm_init(MachineState *machine) xen_init_ram(machine); - if (xen_init_ioreq(xam->state, machine->smp.cpus)) { - return; - } + xen_register_ioreq(xam->state, machine->smp.cpus, xen_memory_listener); xen_create_virtio_mmio_devices(xam); @@ -218,6 +192,7 @@ static void xen_arm_machine_class_init(ObjectClass *oc, void *data) mc->max_cpus = 1; /* Set explicitly here to make sure that real ram_size is passed */ mc->default_ram_size = 0; + mc->default_machine_opts = "accel=xen"; machine_class_allow_dynamic_sysbus_dev(mc, TYPE_TPM_TIS_SYSBUS); }