432d268c05
On IA32 host or IA32 PAE host, at present, generally, we can't create an HVM guest with more than 2G memory, because generally it's almost impossible for Qemu to find a large enough and consecutive virtual address space to map an HVM guest's whole physical address space. The attached patch fixes this issue using dynamic mapping based on little blocks of memory. Each call to qemu_get_ram_ptr makes a call to qemu_map_cache with the lock option, so mapcache will not unmap these ram_ptr. Blocks that do not belong to the RAM, but usually to a device ROM or to a framebuffer, are handled in a separate function. So the whole RAMBlock can be map. Signed-off-by: Jun Nakajima <jun.nakajima@intel.com> Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Alexander Graf <agraf@suse.de>
38 lines
623 B
C
38 lines
623 B
C
/*
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* Copyright (C) 2010 Citrix Ltd.
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#include "qemu-common.h"
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#include "hw/xen.h"
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int xen_pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num)
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{
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return -1;
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}
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void xen_piix3_set_irq(void *opaque, int irq_num, int level)
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{
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}
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void xen_piix_pci_write_config_client(uint32_t address, uint32_t val, int len)
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{
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}
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void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size)
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{
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}
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qemu_irq *xen_interrupt_controller_init(void)
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{
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return NULL;
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}
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int xen_init(void)
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{
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return -ENOSYS;
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}
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