linux-user: elf: s390x: Prepare for Vector enhancements facility

Let's check for S390_FEAT_VECTOR_ENH and set HWCAP_S390_VXRS_EXT
accordingly. Add all missing HWCAP defined in upstream Linux.

Cc: Laurent Vivier <laurent@vivier.eu>
Acked-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210608092337.12221-25-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>

include/elf.h

@@ -605,6 +605,13 @@ typedef struct {
 #define HWCAP_S390_HIGH_GPRS    512
 #define HWCAP_S390_TE           1024
 #define HWCAP_S390_VXRS         2048
+#define HWCAP_S390_VXRS_BCD     4096
+#define HWCAP_S390_VXRS_EXT     8192
+#define HWCAP_S390_GS           16384
+#define HWCAP_S390_VXRS_EXT2    32768
+#define HWCAP_S390_VXRS_PDE     65536
+#define HWCAP_S390_SORT         131072
+#define HWCAP_S390_DFLT         262144
 
 /* M68K specific definitions. */
 /* We use the top 24 bits to encode information about the

linux-user/elfload.c

@@ -1376,6 +1376,7 @@ static uint32_t get_elf_hwcap(void)
         hwcap |= HWCAP_S390_ETF3EH;
     }
     GET_FEATURE(S390_FEAT_VECTOR, HWCAP_S390_VXRS);
+    GET_FEATURE(S390_FEAT_VECTOR_ENH, HWCAP_S390_VXRS_EXT);
 
     return hwcap;
 }