[RFC 15/37] KVM: s390: protvirt: Add machine-check interruption injection controls

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From: Michael Mueller <mimu@xxxxxxxxxxxxx>

The following fields are added to the sie control block type 4:
     - Machine Check Interruption Code (mcic)
     - External Damage Code (edc)
     - Failing Storage Address (faddr)

Signed-off-by: Michael Mueller <mimu@xxxxxxxxxxxxx>
---
 arch/s390/include/asm/kvm_host.h | 33 +++++++++++++++++++++++---------
 1 file changed, 24 insertions(+), 9 deletions(-)

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 63fc32d38aa9..0ab309b7bf4c 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -261,16 +261,31 @@ struct kvm_s390_sie_block {
 #define HPID_VSIE	0x5
 	__u8	hpid;			/* 0x00b8 */
 	__u8	reservedb9[7];		/* 0x00b9 */
-	__u32	eiparams;		/* 0x00c0 */
-	__u16	extcpuaddr;		/* 0x00c4 */
-	__u16	eic;			/* 0x00c6 */
+	union {
+		struct {
+			__u32	eiparams;	/* 0x00c0 */
+			__u16	extcpuaddr;	/* 0x00c4 */
+			__u16	eic;		/* 0x00c6 */
+		};
+		__u64	mcic;			/* 0x00c0 */
+	} __packed;
 	__u32	reservedc8;		/* 0x00c8 */
-	__u16	pgmilc;			/* 0x00cc */
-	__u16	iprcc;			/* 0x00ce */
-	__u32	dxc;			/* 0x00d0 */
-	__u16	mcn;			/* 0x00d4 */
-	__u8	perc;			/* 0x00d6 */
-	__u8	peratmid;		/* 0x00d7 */
+	union {
+		struct {
+			__u16	pgmilc;		/* 0x00cc */
+			__u16	iprcc;		/* 0x00ce */
+		};
+		__u32	edc;			/* 0x00cc */
+	} __packed;
+	union {
+		struct {
+			__u32	dxc;		/* 0x00d0 */
+			__u16	mcn;		/* 0x00d4 */
+			__u8	perc;		/* 0x00d6 */
+			__u8	peratmid;	/* 0x00d7 */
+		};
+		__u64	faddr;			/* 0x00d0 */
+	} __packed;
 	__u64	peraddr;		/* 0x00d8 */
 	__u8	eai;			/* 0x00e0 */
 	__u8	peraid;			/* 0x00e1 */
-- 
2.20.1




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