5125f9cd25
This large region is necessary for some devices like ivshmem and video cards 32-bit kernels can be built without LPAE support. In this case such a kernel will not be able to use PCI controller which has windows in high addresses. In order to work around the problem, "highmem" option is introduced. It defaults to on on, but can be manually set to off in order to be able to run those old 32-bit guests. Signed-off-by: Pavel Fedin <p.fedin@samsung.com> Reviewed-by: Alexander Graf <agraf@suse.de> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org> [PMM: Added missing ULL suffixes and a comment to the a15memmap[] entry] Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/*
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*
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* Copyright (c) 2015 Linaro Limited
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* Emulate a virtual board which works by passing Linux all the information
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* it needs about what devices are present via the device tree.
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* There are some restrictions about what we can do here:
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* + we can only present devices whose Linux drivers will work based
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* purely on the device tree with no platform data at all
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* + we want to present a very stripped-down minimalist platform,
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* both because this reduces the security attack surface from the guest
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* and also because it reduces our exposure to being broken when
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* the kernel updates its device tree bindings and requires further
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* information in a device binding that we aren't providing.
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* This is essentially the same approach kvmtool uses.
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*/
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#ifndef QEMU_ARM_VIRT_H
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#define QEMU_ARM_VIRT_H
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#include "qemu-common.h"
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#define NUM_GICV2M_SPIS 64
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#define NUM_VIRTIO_TRANSPORTS 32
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#define ARCH_TIMER_VIRT_IRQ 11
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#define ARCH_TIMER_S_EL1_IRQ 13
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#define ARCH_TIMER_NS_EL1_IRQ 14
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#define ARCH_TIMER_NS_EL2_IRQ 10
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enum {
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VIRT_FLASH,
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VIRT_MEM,
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VIRT_CPUPERIPHS,
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VIRT_GIC_DIST,
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VIRT_GIC_CPU,
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VIRT_UART,
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VIRT_MMIO,
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VIRT_RTC,
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VIRT_FW_CFG,
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VIRT_PCIE,
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VIRT_PCIE_MMIO,
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VIRT_PCIE_PIO,
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VIRT_PCIE_ECAM,
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VIRT_GIC_V2M,
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VIRT_PLATFORM_BUS,
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VIRT_PCIE_MMIO_HIGH,
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};
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typedef struct MemMapEntry {
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hwaddr base;
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hwaddr size;
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} MemMapEntry;
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#endif
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