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KVM: x86/xen: Explicitly pad struct compat_vcpu_info to 64 bytes

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Add a 2 byte pad to struct compat_vcpu_info so that the sum size of its
fields is actually 64 bytes.  The effective size without the padding is
also 64 bytes due to the compiler aligning evtchn_pending_sel to a 4-byte
boundary, but depending on compiler alignment is subtle and unnecessary.

Opportunistically replace spaces with tables in the other fields.

Cc: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210210182609.435200-6-seanjc@google.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2021-02-10 10:26:09 -08:00 committed by Paolo Bonzini
parent f1b83973a1
commit 7137b7ae6f
1 changed files with 6 additions and 5 deletions
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11
arch/x86/kvm/xen.h
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@ -49,11 +49,12 @@ struct compat_arch_vcpu_info {
};
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;
uint8_t evtchn_upcall_pending;
uint8_t evtchn_upcall_mask;
uint16_t pad;
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 {