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authorThomas Huth <thuth@redhat.com>2017-06-26 07:22:54 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2017-07-04 14:30:03 +0200
commitcbca3722a33ca6f6a8d9ceba89c5b3e7c28007ee (patch)
tree700a80068e4d901a9bb78ed5a19cf36b1b7d4487
parent2099935dbf2e7b1a1359d1c1ae312f976246065d (diff)
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include/exec/poison: Mark CONFIG_KVM as poisoned, too
CONFIG_KVM is only defined for target-specific code, so nobody should use it by accident in common code. To avoid such subtle bugs, CONFIG_KVM is now marked as poisoned in common code. The header include/sysemu/kvm.h is somewhat special since it is included all over the place from common code, too, so we need some extra logic via "#ifdef NEED_CPU_H" here to make sure that we can compile all files without problems. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1498454578-18709-4-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--hw/acpi/ich9.c1
-rw-r--r--include/exec/poison.h1
-rw-r--r--include/sysemu/kvm.h18
3 files changed, 14 insertions, 6 deletions
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 5c279bb..c5d8646 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -33,7 +33,6 @@
#include "sysemu/sysemu.h"
#include "hw/acpi/acpi.h"
#include "hw/acpi/tco.h"
-#include "sysemu/kvm.h"
#include "exec/address-spaces.h"
#include "hw/i386/ich9.h"
diff --git a/include/exec/poison.h b/include/exec/poison.h
index 7a025b2..32707cd 100644
--- a/include/exec/poison.h
+++ b/include/exec/poison.h
@@ -86,6 +86,7 @@
#pragma GCC poison CONFIG_LINUX_USER
#pragma GCC poison CONFIG_VHOST_NET
+#pragma GCC poison CONFIG_KVM
#endif
#endif
diff --git a/include/sysemu/kvm.h b/include/sysemu/kvm.h
index ca40b6e..052e11f 100644
--- a/include/sysemu/kvm.h
+++ b/include/sysemu/kvm.h
@@ -19,11 +19,18 @@
#include "exec/memattrs.h"
#include "hw/irq.h"
-#ifdef CONFIG_KVM
-#include <linux/kvm.h>
-#include <linux/kvm_para.h>
+#ifdef NEED_CPU_H
+# ifdef CONFIG_KVM
+# include <linux/kvm.h>
+# include <linux/kvm_para.h>
+# define CONFIG_KVM_IS_POSSIBLE
+# endif
+#else
+# define CONFIG_KVM_IS_POSSIBLE
#endif
+#ifdef CONFIG_KVM_IS_POSSIBLE
+
extern bool kvm_allowed;
extern bool kvm_kernel_irqchip;
extern bool kvm_split_irqchip;
@@ -40,7 +47,6 @@ extern bool kvm_direct_msi_allowed;
extern bool kvm_ioeventfd_any_length_allowed;
extern bool kvm_msi_use_devid;
-#if defined CONFIG_KVM || !defined NEED_CPU_H
#define kvm_enabled() (kvm_allowed)
/**
* kvm_irqchip_in_kernel:
@@ -163,6 +169,7 @@ extern bool kvm_msi_use_devid;
#define kvm_msi_devid_required() (kvm_msi_use_devid)
#else
+
#define kvm_enabled() (0)
#define kvm_irqchip_in_kernel() (false)
#define kvm_irqchip_is_split() (false)
@@ -178,7 +185,8 @@ extern bool kvm_msi_use_devid;
#define kvm_direct_msi_enabled() (false)
#define kvm_ioeventfd_any_length_enabled() (false)
#define kvm_msi_devid_required() (false)
-#endif
+
+#endif /* CONFIG_KVM_IS_POSSIBLE */
struct kvm_run;
struct kvm_lapic_state;