mirror of
https://github.com/qemu/qemu.git
synced 2024-12-10 12:13:33 +08:00
b8865591d4
When more memory devices are used than available KVM memory slots, QEMU crashes with: kvm_alloc_slot: no free slot available Aborted (core dumped) Fix this by checking that KVM has a free slot before attempting to map memory in guest address space. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
156 lines
2.5 KiB
C
156 lines
2.5 KiB
C
/*
|
|
* QEMU KVM stub
|
|
*
|
|
* Copyright Red Hat, Inc. 2010
|
|
*
|
|
* Author: Paolo Bonzini <pbonzini@redhat.com>
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#include "qemu-common.h"
|
|
#include "hw/hw.h"
|
|
#include "cpu.h"
|
|
#include "sysemu/kvm.h"
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
#include "hw/pci/msi.h"
|
|
#endif
|
|
|
|
KVMState *kvm_state;
|
|
bool kvm_kernel_irqchip;
|
|
bool kvm_async_interrupts_allowed;
|
|
bool kvm_eventfds_allowed;
|
|
bool kvm_irqfds_allowed;
|
|
bool kvm_msi_via_irqfd_allowed;
|
|
bool kvm_gsi_routing_allowed;
|
|
bool kvm_gsi_direct_mapping;
|
|
bool kvm_allowed;
|
|
bool kvm_readonly_mem_allowed;
|
|
|
|
int kvm_init_vcpu(CPUState *cpu)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
void kvm_flush_coalesced_mmio_buffer(void)
|
|
{
|
|
}
|
|
|
|
void kvm_cpu_synchronize_state(CPUState *cpu)
|
|
{
|
|
}
|
|
|
|
void kvm_cpu_synchronize_post_reset(CPUState *cpu)
|
|
{
|
|
}
|
|
|
|
void kvm_cpu_synchronize_post_init(CPUState *cpu)
|
|
{
|
|
}
|
|
|
|
int kvm_cpu_exec(CPUState *cpu)
|
|
{
|
|
abort();
|
|
}
|
|
|
|
int kvm_has_sync_mmu(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int kvm_has_many_ioeventfds(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int kvm_has_pit_state2(void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void kvm_setup_guest_memory(void *start, size_t size)
|
|
{
|
|
}
|
|
|
|
int kvm_update_guest_debug(CPUState *cpu, unsigned long reinject_trap)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
int kvm_insert_breakpoint(CPUState *cpu, target_ulong addr,
|
|
target_ulong len, int type)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
int kvm_remove_breakpoint(CPUState *cpu, target_ulong addr,
|
|
target_ulong len, int type)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
void kvm_remove_all_breakpoints(CPUState *cpu)
|
|
{
|
|
}
|
|
|
|
#ifndef _WIN32
|
|
int kvm_set_signal_mask(CPUState *cpu, const sigset_t *sigset)
|
|
{
|
|
abort();
|
|
}
|
|
#endif
|
|
|
|
int kvm_on_sigbus_vcpu(CPUState *cpu, int code, void *addr)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
int kvm_on_sigbus(int code, void *addr)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
#ifndef CONFIG_USER_ONLY
|
|
int kvm_irqchip_add_msi_route(KVMState *s, MSIMessage msg)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
void kvm_init_irq_routing(KVMState *s)
|
|
{
|
|
}
|
|
|
|
void kvm_irqchip_release_virq(KVMState *s, int virq)
|
|
{
|
|
}
|
|
|
|
int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
int kvm_irqchip_add_adapter_route(KVMState *s, AdapterInfo *adapter)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n,
|
|
EventNotifier *rn, int virq)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
int kvm_irqchip_remove_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
bool kvm_has_free_slot(MachineState *ms)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|