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authorPeter Maydell2018-05-25 15:27:54 +0200
committerPaolo Bonzini2018-06-01 15:14:31 +0200
commit65a6d8dd3f322e91efa320f2811bec83dde36b6b (patch)
tree0ce07583f33c185f008bd5afeb3c3083c066259c /linux-headers/asm-x86/kvm.h
parenttarget/i386/kvm.c: Handle renaming of KVM_HINTS_DEDICATED (diff)
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Update Linux headers to 4.17-rc6
Update our copy of the Linux headers to upstream 4.17-rc6 (kernel commit 771c577c23bac90597c68). Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20180525132755.21839-6-peter.maydell@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'linux-headers/asm-x86/kvm.h')
-rw-r--r--linux-headers/asm-x86/kvm.h19
1 files changed, 18 insertions, 1 deletions
diff --git a/linux-headers/asm-x86/kvm.h b/linux-headers/asm-x86/kvm.h
index f3a960488e..c535c2fdea 100644
--- a/linux-headers/asm-x86/kvm.h
+++ b/linux-headers/asm-x86/kvm.h
@@ -354,8 +354,25 @@ struct kvm_xcrs {
__u64 padding[16];
};
-/* definition of registers in kvm_run */
+#define KVM_SYNC_X86_REGS (1UL << 0)
+#define KVM_SYNC_X86_SREGS (1UL << 1)
+#define KVM_SYNC_X86_EVENTS (1UL << 2)
+
+#define KVM_SYNC_X86_VALID_FIELDS \
+ (KVM_SYNC_X86_REGS| \
+ KVM_SYNC_X86_SREGS| \
+ KVM_SYNC_X86_EVENTS)
+
+/* kvm_sync_regs struct included by kvm_run struct */
struct kvm_sync_regs {
+ /* Members of this structure are potentially malicious.
+ * Care must be taken by code reading, esp. interpreting,
+ * data fields from them inside KVM to prevent TOCTOU and
+ * double-fetch types of vulnerabilities.
+ */
+ struct kvm_regs regs;
+ struct kvm_sregs sregs;
+ struct kvm_vcpu_events events;
};
#define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)