# -*- Mode: makefile -*-
GENERATED_HEADERS = config-target.h
+CONFIG_NO_KVM = $(if $(subst n,,$(CONFIG_KVM)),n,y)
include ../config-host.mak
include config-devices.mak
obj-$(CONFIG_VHOST_NET) += vhost.o
obj-y += rwhandler.o
obj-$(CONFIG_KVM) += kvm.o kvm-all.o
+obj-$(CONFIG_NO_KVM) += kvm-stub.o
LIBS+=-lz
QEMU_CFLAGS += $(VNC_TLS_CFLAGS)
--- /dev/null
+/*
+ * 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 "sysemu.h"
+#include "hw/hw.h"
+#include "gdbstub.h"
+#include "kvm.h"
+
+int kvm_irqchip_in_kernel(void)
+{
+ return 0;
+}
+
+int kvm_pit_in_kernel(void)
+{
+ return 0;
+}
+
+
+int kvm_init_vcpu(CPUState *env)
+{
+ return -ENOSYS;
+}
+
+int kvm_log_start(target_phys_addr_t phys_addr, ram_addr_t size)
+{
+ return -ENOSYS;
+}
+
+int kvm_log_stop(target_phys_addr_t phys_addr, ram_addr_t size)
+{
+ return -ENOSYS;
+}
+
+int kvm_coalesce_mmio_region(target_phys_addr_t start, ram_addr_t size)
+{
+ return -ENOSYS;
+}
+
+int kvm_uncoalesce_mmio_region(target_phys_addr_t start, ram_addr_t size)
+{
+ return -ENOSYS;
+}
+
+int kvm_check_extension(KVMState *s, unsigned int extension)
+{
+ return 0;
+}
+
+int kvm_init(int smp_cpus)
+{
+ return -ENOSYS;
+}
+
+void kvm_flush_coalesced_mmio_buffer(void)
+{
+}
+
+void kvm_cpu_synchronize_state(CPUState *env)
+{
+}
+
+void kvm_cpu_synchronize_post_reset(CPUState *env)
+{
+}
+
+void kvm_cpu_synchronize_post_init(CPUState *env)
+{
+}
+
+int kvm_cpu_exec(CPUState *env)
+{
+ abort ();
+}
+
+int kvm_has_sync_mmu(void)
+{
+ return 0;
+}
+
+int kvm_has_vcpu_events(void)
+{
+ return 0;
+}
+
+int kvm_has_robust_singlestep(void)
+{
+ return 0;
+}
+
+void kvm_setup_guest_memory(void *start, size_t size)
+{
+}
+
+int kvm_update_guest_debug(CPUState *env, unsigned long reinject_trap)
+{
+ tb_flush(env);
+ return 0;
+}
+
+int kvm_insert_breakpoint(CPUState *current_env, target_ulong addr,
+ target_ulong len, int type)
+{
+ return -EINVAL;
+}
+
+int kvm_remove_breakpoint(CPUState *current_env, target_ulong addr,
+ target_ulong len, int type)
+{
+ return -EINVAL;
+}
+
+void kvm_remove_all_breakpoints(CPUState *current_env)
+{
+}
+
+#ifndef _WIN32
+int kvm_set_signal_mask(CPUState *env, const sigset_t *sigset)
+{
+ abort();
+}
+#endif
+
+int kvm_set_ioeventfd_pio_word(int fd, uint16_t addr, uint16_t val, bool assign)
+{
+ return -ENOSYS;
+}
#include <linux/kvm.h>
#endif
-#ifdef CONFIG_KVM
extern int kvm_allowed;
+
+#if defined CONFIG_KVM || !defined NEED_CPU_H
#define kvm_enabled() (kvm_allowed)
#else
#define kvm_enabled() (0)
}
}
-#if defined(KVM_IOEVENTFD) && defined(CONFIG_KVM)
-int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
-#else
-static inline
-int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign)
-{
- return -ENOSYS;
-}
#endif
-#endif
+int kvm_set_ioeventfd_pio_word(int fd, uint16_t adr, uint16_t val, bool assign);
#endif
do_smbios_option(optarg);
break;
case QEMU_OPTION_enable_kvm:
- if (!(kvm_available())) {
- printf("Option %s not supported for this target\n", popt->name);
- exit(1);
- }
kvm_allowed = 1;
break;
case QEMU_OPTION_usb:
exit(1);
}
- if (kvm_enabled()) {
- int ret;
-
- ret = kvm_init(smp_cpus);
+ if (kvm_allowed) {
+ int ret = kvm_init(smp_cpus);
if (ret < 0) {
- fprintf(stderr, "failed to initialize KVM\n");
+ if (!kvm_available()) {
+ printf("KVM not supported for this target\n");
+ } else {
+ fprintf(stderr, "failed to initialize KVM: %s\n", strerror(-ret));
+ }
exit(1);
}
}