From: David Woodhouse <dwmw@xxxxxxxxxxxx>
There aren't a lot of differences for the things that the kernel needs
to care about, but there are a few.
Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
---
arch/x86/kvm/xen.h | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/arch/x86/kvm/xen.h b/arch/x86/kvm/xen.h
index afc6dad41fb5..870ac7197a3a 100644
--- a/arch/x86/kvm/xen.h
+++ b/arch/x86/kvm/xen.h
@@ -21,4 +21,43 @@ static inline bool kvm_xen_hypercall_enabled(struct kvm *kvm)
KVM_XEN_HVM_CONFIG_INTERCEPT_HCALL;
}
+
+/* 32-bit compatibility definitions */
+#include <asm/pvclock-abi.h>
+#include <asm/xen/interface.h>
+
+struct compat_arch_vcpu_info {
+ unsigned int cr2;
+ unsigned int pad[5];
+};
+
+struct compat_vcpu_info {
+ uint8_t evtchn_upcall_pending;
+ uint8_t evtchn_upcall_mask;
+ uint32_t evtchn_pending_sel;
+ struct compat_arch_vcpu_info arch;
+ struct pvclock_vcpu_time_info time;
+}; /* 64 bytes (x86) */
+
+struct compat_arch_shared_info {
+ unsigned int max_pfn;
+ unsigned int pfn_to_mfn_frame_list_list;
+ unsigned int nmi_reason;
+ unsigned int p2m_cr3;
+ unsigned int p2m_vaddr;
+ unsigned int p2m_generation;
+ uint32_t wc_sec_hi;
+};
+
+struct compat_shared_info {
+ struct compat_vcpu_info vcpu_info[MAX_VIRT_CPUS];
+ uint32_t evtchn_pending[sizeof(compat_ulong_t) * 8];
+ uint32_t evtchn_mask[sizeof(compat_ulong_t) * 8];
+ uint32_t wc_version;
+ uint32_t wc_sec;
+ uint32_t wc_nsec;
+ struct compat_arch_shared_info arch;
+
+};
+
#endif /* __ARCH_X86_KVM_XEN_H__ */
--
2.26.2
