Add support for QEMU ARM Virtual Machine ("virt").
This commit is contained in:
jmcneill
parent
2f78d473d8
commit
2417111f9f
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@ -0,0 +1,9 @@
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# $NetBSD: files.virt,v 1.1 2018/06/14 10:56:39 jmcneill Exp $
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#
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# Configuration info for QEMU virtual boards.
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#
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#
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file arch/arm/virt/virt_platform.c soc_virt
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defflag opt_soc.h SOC_VIRT
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@ -0,0 +1,130 @@
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/* $NetBSD: virt_platform.c,v 1.1 2018/06/14 10:56:39 jmcneill Exp $ */
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/*-
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* Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "opt_soc.h"
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#include "opt_multiprocessor.h"
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#include "opt_fdt_arm.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: virt_platform.c,v 1.1 2018/06/14 10:56:39 jmcneill Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/cpu.h>
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#include <sys/device.h>
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#include <sys/termios.h>
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#include <dev/fdt/fdtvar.h>
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#include <arm/fdt/arm_fdtvar.h>
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#include <uvm/uvm_extern.h>
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#include <machine/bootconfig.h>
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#include <arm/cpufunc.h>
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#include <evbarm/dev/plcomreg.h>
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#include <evbarm/dev/plcomvar.h>
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#include <dev/ic/ns16550reg.h>
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#include <dev/ic/comreg.h>
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#include <arm/cortex/gtmr_var.h>
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#include <arm/arm/psci.h>
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#include <arm/fdt/psci_fdt.h>
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#include <arm/virt/virt_platform.h>
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#define VIRT_UART_BASE 0x09000000
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static const struct pmap_devmap *
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virt_platform_devmap(void)
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{
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static const struct pmap_devmap devmap[] = {
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DEVMAP_ENTRY(VIRT_CORE_VBASE,
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VIRT_CORE_PBASE,
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VIRT_CORE_SIZE),
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DEVMAP_ENTRY_END
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};
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return devmap;
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}
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static void
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virt_platform_init_attach_args(struct fdt_attach_args *faa)
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{
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extern struct arm32_bus_dma_tag arm_generic_dma_tag;
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extern struct bus_space arm_generic_bs_tag;
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extern struct bus_space arm_generic_a4x_bs_tag;
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faa->faa_bst = &arm_generic_bs_tag;
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faa->faa_a4x_bst = &arm_generic_a4x_bs_tag;
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faa->faa_dmat = &arm_generic_dma_tag;
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}
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void virt_platform_early_putchar(char);
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void
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virt_platform_early_putchar(char c)
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{
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volatile uint32_t *uartaddr = cpu_earlydevice_va_p() ?
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(volatile uint32_t *)VIRT_CORE_PTOV(VIRT_UART_BASE) :
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(volatile uint32_t *)VIRT_UART_BASE;
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while ((uartaddr[PL01XCOM_FR / 4] & PL01X_FR_TXFF) != 0)
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continue;
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uartaddr[PL01XCOM_DR / 4] = c;
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while ((uartaddr[PL01XCOM_FR / 4] & PL01X_FR_TXFE) == 0)
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continue;
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}
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static void
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virt_platform_device_register(device_t self, void *aux)
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{
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}
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static u_int
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virt_platform_uart_freq(void)
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{
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return 24000000;
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}
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static const struct arm_platform virt_platform = {
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.devmap = virt_platform_devmap,
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.bootstrap = psci_fdt_bootstrap,
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.init_attach_args = virt_platform_init_attach_args,
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.early_putchar = virt_platform_early_putchar,
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.device_register = virt_platform_device_register,
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.reset = psci_fdt_reset,
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.delay = gtmr_delay,
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.uart_freq = virt_platform_uart_freq,
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};
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ARM_PLATFORM(virt, "linux,dummy-virt", &virt_platform);
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@ -0,0 +1,40 @@
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/* $NetBSD: virt_platform.h,v 1.1 2018/06/14 10:56:39 jmcneill Exp $ */
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/*-
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* Copyright (c) 2018 Jared McNeill <jmcneill@invisible.ca>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _ARM_VIRT_PLATFORM_H
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#define _ARM_VIRT_PLATFORM_H
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#include <arch/evbarm/fdt/platform.h>
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#define VIRT_CORE_VBASE KERNEL_IO_VBASE
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#define VIRT_CORE_PBASE 0x00000000
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#define VIRT_CORE_SIZE 0x10000000
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#define VIRT_CORE_PTOV(p) (((p) - VIRT_CORE_PBASE) + VIRT_CORE_VBASE)
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#endif /* _ARM_VIRT_PLATFORM_H */
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@ -1,5 +1,5 @@
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#
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# $NetBSD: GENERIC64,v 1.15 2018/05/10 00:05:22 jmcneill Exp $
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# $NetBSD: GENERIC64,v 1.16 2018/06/14 10:56:39 jmcneill Exp $
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#
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# GENERIC ARM (aarch64) kernel
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#
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@ -49,6 +49,7 @@ options SOC_TEGRA210
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options SOC_SUN50I_A64
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options SOC_SUN50I_H5
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options SOC_SUN50I_H6
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options SOC_VIRT
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#options MULTIPROCESSOR
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pseudo-device openfirm # /dev/openfirm
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@ -63,6 +64,7 @@ options VERBOSE_INIT_ARM # verbose bootstrapping messages
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#options EARLYCONS=bcm2837
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#options EARLYCONS=sunxi, CONSADDR=0x01c28000
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#options EARLYCONS=tegra, CONSADDR=0x70006000
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#options EARLYCONS=virt
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makeoptions DEBUG="-g" # compile full symbol table
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makeoptions COPY_SYMTAB=1
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@ -0,0 +1,56 @@
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#
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# $NetBSD: VIRT,v 1.1 2018/06/14 10:56:39 jmcneill Exp $
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#
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# QEMU ARM 'virt' virtual machine
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#
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include "arch/evbarm/conf/std.virt"
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include "arch/evbarm/conf/GENERIC.common"
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options CPU_CORTEXA15
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options SOC_VIRT
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options MULTIPROCESSOR
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pseudo-device openfirm # /dev/openfirm
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#options DIAGNOSTIC # internal consistency checks
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#options DEBUG
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#options LOCKDEBUG
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#options PMAP_DEBUG # Enable pmap_debug_level code
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#options IPKDB # remote kernel debugging
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#options VERBOSE_INIT_ARM # verbose bootstrapping messages
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makeoptions DEBUG="-g" # compile full symbol table
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makeoptions COPY_SYMTAB=1
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config netbsd root on ? type ?
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# Device tree support
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armfdt0 at root
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fdt* at fdtbus?
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# CPUs
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cpus* at fdt? pass 0
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cpu* at cpus?
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fclock* at fdt? pass 4
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fregulator* at fdt? pass 4
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# Power state coordination interface
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psci* at fdt?
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# Timer
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gtmr* at fdt? pass 1 # ARM Generic Timer
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armgtmr0 at gtmr?
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# Interrupt controller
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gic* at fdt? pass 1 # GIC
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armgic0 at gic?
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# UART
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plcom* at fdt? # ARM PL011 UART
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# RTC
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plrtc* at fdt? # ARM PrimeCell RTC
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cinclude "arch/evbarm/conf/VIRT.local"
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@ -1,4 +1,4 @@
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# $NetBSD: files.generic64,v 1.1 2018/04/01 04:35:04 ryo Exp $
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# $NetBSD: files.generic64,v 1.2 2018/06/14 10:56:39 jmcneill Exp $
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#
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defparam opt_arm_debug.h EARLYCONS
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@ -13,3 +13,4 @@ include "arch/evbarm/conf/files.fdt"
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include "arch/arm/broadcom/files.bcm2835"
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include "arch/arm/nvidia/files.tegra"
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include "arch/arm/sunxi/files.sunxi"
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include "arch/arm/virt/files.virt"
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@ -0,0 +1,19 @@
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# $NetBSD: files.virt,v 1.1 2018/06/14 10:56:39 jmcneill Exp $
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#
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# QEMU 'virt' machine configuration info
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#
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include "arch/arm/pic/files.pic"
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include "arch/arm/cortex/files.cortex"
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file arch/arm/arm32/arm32_boot.c
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file arch/arm/arm32/arm32_kvminit.c
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file arch/arm/arm32/arm32_reboot.c
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file arch/arm/arm32/irq_dispatch.S
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file arch/arm/arm32/armv7_generic_space.c
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file arch/arm/arm/arm_generic_dma.c
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file arch/arm/arm/bus_space_a4x.S
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include "arch/evbarm/conf/files.fdt"
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include "arch/arm/virt/files.virt"
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@ -0,0 +1,35 @@
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# $NetBSD: mk.virt,v 1.1 2018/06/14 10:56:39 jmcneill Exp $
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.if !empty(MACHINE_ARCH:M*eb)
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EXTRA_LINKFLAGS+= --be8
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.endif
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SYSTEM_FIRST_OBJ= virt_start.o
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SYSTEM_FIRST_SFILE= ${THISARM}/virt/virt_start.S
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_OSRELEASE!= ${HOST_SH} $S/conf/osrelease.sh
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KERNEL_BASE_PHYS?=$(LOADADDRESS)
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KERNEL_BASE_VIRT?=$(LOADADDRESS)
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MKUBOOTIMAGEARGS= -A arm -T kernel -O linux
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MKUBOOTIMAGEARGS+= -a $(KERNEL_BASE_PHYS) -e $(KERNEL_BASE_PHYS)
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MKUBOOTIMAGEARGS+= -n "NetBSD/$(BOARDTYPE) ${_OSRELEASE}"
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MKUBOOTIMAGEARGS_NONE= ${MKUBOOTIMAGEARGS} -C none
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MKUBOOTIMAGEARGS_GZ= ${MKUBOOTIMAGEARGS} -C gz
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SYSTEM_LD_TAIL_EXTRA+=; \
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echo ${OBJCOPY} -S -O binary $@ $@.bin; \
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${OBJCOPY} -S -O binary $@ $@.bin; \
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echo ${TOOL_GZIP} -9c $@.bin > $@.bin.gz; \
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${TOOL_GZIP} -9c $@.bin > $@.bin.gz; \
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echo ${TOOL_MKUBOOTIMAGE} ${MKUBOOTIMAGEARGS_GZ} $@.bin.gz $@.gz.ub; \
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${TOOL_MKUBOOTIMAGE} ${MKUBOOTIMAGEARGS_GZ} $@.bin.gz $@.gz.ub; \
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echo ${TOOL_MKUBOOTIMAGE} ${MKUBOOTIMAGEARGS_NONE} $@.bin $@.ub; \
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${TOOL_MKUBOOTIMAGE} ${MKUBOOTIMAGEARGS_NONE} $@.bin $@.ub; \
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echo
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EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.bin@}
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EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.ub@}
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EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.bin.gz@}
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EXTRA_KERNELS+= ${KERNELS:@.KERNEL.@${.KERNEL.}.gz.ub@}
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@ -0,0 +1,36 @@
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# $NetBSD: std.virt,v 1.1 2018/06/14 10:56:39 jmcneill Exp $
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#
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# standard NetBSD/evbarm for VIRT options
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machine evbarm arm
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include "arch/evbarm/conf/std.evbarm"
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# Pull in VIRT config definitions
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include "arch/evbarm/conf/files.virt"
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options FDT # Flattened Device Tree support
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options DRAM_BLOCKS=256
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options MODULAR
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options MODULAR_DEFAULT_AUTOLOAD
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options ARM_HAS_VBAR
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options __HAVE_CPU_COUNTER
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options __HAVE_CPU_UAREA_ALLOC_IDLELWP
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options __HAVE_FAST_SOFTINTS # should be in types.h
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#options __HAVE_MM_MD_DIRECT_MAPPED_PHYS
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options TPIDRPRW_IS_CURCPU
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options KERNEL_BASE_EXT=0x80000000
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options FPU_VFP
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makeoptions KERNEL_BASE_PHYS="0x40000000"
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makeoptions KERNEL_BASE_VIRT="0x40000000"
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makeoptions BOARDTYPE="virt"
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makeoptions BOARDMKFRAG="${THISARM}/conf/mk.virt"
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makeoptions CPUFLAGS="-mcpu=cortex-a15 -mfpu=neon"
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options ARM_INTR_IMPL="<arch/arm/fdt/fdt_intr.h>"
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options ARM_GENERIC_TODR
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# initrd support
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options MEMORY_DISK_HOOKS
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options MEMORY_DISK_DYNAMIC
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pseudo-device md
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@ -0,0 +1,178 @@
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/* $NetBSD: virt_start.S,v 1.1 2018/06/14 10:56:39 jmcneill Exp $ */
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/*-
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* Copyright (c) 2015 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Sergio L. Pascual.
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*
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* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
||||
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
||||
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
||||
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
||||
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
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*/
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#include "opt_cpuoptions.h"
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#include "opt_cputypes.h"
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#include "opt_multiprocessor.h"
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#include "opt_arm_debug.h"
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#include "opt_fdt.h"
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#include <arm/asm.h>
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#include <arm/armreg.h>
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#include "assym.h"
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#include <arm/virt/virt_platform.h>
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RCSID("$NetBSD: virt_start.S,v 1.1 2018/06/14 10:56:39 jmcneill Exp $")
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#ifdef VERBOSE_INIT_ARM
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#define XPUTC(n) mov r0, n; bl xputc
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#define XPUTC2(n) mov r0, n; blx r11
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#else
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#define XPUTC(n)
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#define XPUTC2(n)
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#endif
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#define INIT_MEMSIZE 64
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#define TEMP_L1_TABLE (KERNEL_BASE - KERNEL_BASE_VOFFSET + INIT_MEMSIZE * L1_S_SIZE - L1_TABLE_SIZE)
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#define MD_CPU_HATCH _C_LABEL(arm_fdt_cpu_hatch)
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/*
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* Kernel start routine for Versatile Express boards running on uboot firmware
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* At this point, this code has been loaded into SDRAM
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* and the MMU is off
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*/
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.section .start,"ax",%progbits
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.global _C_LABEL(virt_start)
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||||
_C_LABEL(virt_start):
|
||||
#ifdef __ARMEB__
|
||||
setend be /* force big endian */
|
||||
#endif
|
||||
/* Move into supervisor mode and disable IRQs/FIQs. */
|
||||
cpsid if, #PSR_SVC32_MODE
|
||||
|
||||
/* Save any arguments passed to us. */
|
||||
movw r4, #:lower16:uboot_args
|
||||
movt r4, #:upper16:uboot_args
|
||||
sub r4, r4, #KERNEL_BASE_VOFFSET
|
||||
stmia r4, {r0-r3}
|
||||
|
||||
#ifdef FDT
|
||||
/*
|
||||
* ARM boot protocol has FDT address in r2
|
||||
*/
|
||||
movw r4, #:lower16:fdt_addr_r
|
||||
movt r4, #:upper16:fdt_addr_r
|
||||
sub r4, r4, #KERNEL_BASE_VOFFSET
|
||||
str r2, [r4]
|
||||
#endif
|
||||
|
||||
/* Add DTB PA (1MB) from r2 to MMU init table */
|
||||
movw r3, #:lower16:(L1_S_SIZE - 1) /* align DTB PA to 1M */
|
||||
movt r3, #:upper16:(L1_S_SIZE - 1)
|
||||
bic r0, r2, r3
|
||||
orr r0, r0, #1 /* 1MB mapping */
|
||||
bic r1, r2, r3
|
||||
movw r3, #:lower16:(L1_S_PROTO_armv7|L1_S_APv7_KRW|L1_S_CACHEABLE)
|
||||
movt r3, #:upper16:(L1_S_PROTO_armv7|L1_S_APv7_KRW|L1_S_CACHEABLE)
|
||||
orr r1, r1, r3
|
||||
adr r3, .Lmmu_init_table_dtb /* table entry addr */
|
||||
stmia r3, {r0-r1} /* patch table entry */
|
||||
|
||||
XPUTC('a')
|
||||
|
||||
bl cortex_init
|
||||
|
||||
XPUTC('b')
|
||||
|
||||
/*
|
||||
* Set up a preliminary mapping in the MMU to allow us to run
|
||||
* at KERNEL_BASE with caches on.
|
||||
*/
|
||||
adr r1, .Lmmu_init_table
|
||||
movw r0, #:lower16:TEMP_L1_TABLE
|
||||
movt r0, #:upper16:TEMP_L1_TABLE
|
||||
bl arm_boot_l1pt_init
|
||||
|
||||
XPUTC('c')
|
||||
|
||||
adr r11, xputc
|
||||
movw lr, #:lower16:1f
|
||||
movt lr, #:upper16:1f
|
||||
movw r0, #:lower16:TEMP_L1_TABLE
|
||||
movt r0, #:upper16:TEMP_L1_TABLE
|
||||
b arm_cpuinit
|
||||
|
||||
.pushsection .text, "ax", %progbits
|
||||
.align 0
|
||||
|
||||
1:
|
||||
XPUTC2('d')
|
||||
|
||||
b start
|
||||
|
||||
.popsection
|
||||
|
||||
.align 0
|
||||
.global xputc
|
||||
.type xputc,%function
|
||||
xputc:
|
||||
movw r2, #0x0000
|
||||
movt r2, #0x1c09
|
||||
str r0, [r2]
|
||||
bx lr
|
||||
|
||||
#include <arm/cortex/a9_mpsubr.S>
|
||||
|
||||
.align 0
|
||||
.Lmmu_init_table:
|
||||
/* Map KERNEL_BASE VA to SDRAM PA, write-back cacheable, shareable */
|
||||
MMU_INIT(KERNEL_BASE, KERNEL_BASE - KERNEL_BASE_VOFFSET, INIT_MEMSIZE,
|
||||
L1_S_PROTO_armv7 | L1_S_APv7_KRW | L1_S_CACHEABLE)
|
||||
|
||||
#if KERNEL_BASE_VOFFSET
|
||||
/* Map physical addresses of kernel 1:1 PA:VA write-back cacheable, shareable */
|
||||
MMU_INIT(KERNEL_BASE - KERNEL_BASE_VOFFSET,
|
||||
KERNEL_BASE - KERNEL_BASE_VOFFSET, INIT_MEMSIZE,
|
||||
L1_S_PROTO_armv7 | L1_S_APv7_KRW | L1_S_CACHEABLE)
|
||||
#endif
|
||||
|
||||
/* Map VIRT CORE (so console will work) */
|
||||
MMU_INIT(VIRT_CORE_VBASE, VIRT_CORE_PBASE,
|
||||
VIRT_CORE_SIZE / L1_S_SIZE,
|
||||
L1_S_PROTO_armv7 | L1_S_APv7_KRW | L1_S_V6_XN)
|
||||
|
||||
/* Map VIRT CORE (so console will work) */
|
||||
MMU_INIT(VIRT_CORE_PBASE, VIRT_CORE_PBASE,
|
||||
VIRT_CORE_SIZE / L1_S_SIZE,
|
||||
L1_S_PROTO_armv7 | L1_S_APv7_KRW | L1_S_V6_XN)
|
||||
|
||||
/* Map DTB location in SDRAM, patched in later */
|
||||
.Lmmu_init_table_dtb:
|
||||
MMU_INIT(0, 0, 0, 0)
|
||||
|
||||
/* end of table */
|
||||
MMU_INIT(0, 0, 0, 0)
|
||||
|
||||
|
||||
END(virt_start)
|
||||
Loading…
Reference in New Issue