x86/kernel/jailhouse.c

1 // SPDX-License-Identifier: GPL-2.0
5  * Copyright (c) Siemens AG, 2015-2017
81 	 * We do not have access to IR inside Jailhouse non-root cells.  So  in jailhouse_x2apic_init()
82 	 * we have to run in physical mode.  in jailhouse_x2apic_init()
115 			/* Register 1:1 mapping for legacy UART IRQs 3 and 4 */  in jailhouse_get_smp_config()
157 static void jailhouse_serial_fixup(int port, struct uart_port *up,  in jailhouse_serial_fixup()  argument
164 		if (pcuart_base[n] != up->iobase)  in jailhouse_serial_fixup()
168 			pr_info("Enabling UART%u (port 0x%lx)\n", n,  in jailhouse_serial_fixup()
169 				up->iobase);  in jailhouse_serial_fixup()
170 			jailhouse_setup_irq(up->irq);  in jailhouse_serial_fixup()
173 			up->iobase = 0;  in jailhouse_serial_fixup()
186 	 * this case, unconditionally register 1:1 mapping for legacy UART IRQs  in jailhouse_serial_workaround()
203 	void *mapping;  in jailhouse_init_platform()  local
222 		mapping = early_memremap(pa_data, sizeof(header));  in jailhouse_init_platform()
223 		memcpy(&header, mapping, sizeof(header));  in jailhouse_init_platform()
224 		early_memunmap(mapping, sizeof(header));  in jailhouse_init_platform()
242 	mapping = early_memremap(pa_data, setup_data_len);  in jailhouse_init_platform()
243 	memcpy(&setup_data, mapping, setup_data_len);  in jailhouse_init_platform()
244 	early_memunmap(mapping, setup_data_len);  in jailhouse_init_platform()
254 	pr_debug("Jailhouse: PM-Timer IO Port: %#x\n", pmtmr_ioport);  in jailhouse_init_platform()
262 	 * Avoid that the kernel complains about missing ACPI tables - there  in jailhouse_init_platform()
263 	 * are none in a non-root cell.  in jailhouse_init_platform()