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authorIlya Leoshkevich <iii@linux.ibm.com>2023-06-05 13:39:49 +0200
committerThomas Huth <thuth@redhat.com>2023-06-05 20:48:34 +0200
commite19807bee357a34b1c56f527203cf6be06fe663b (patch)
tree1f276cb23d8ce1694f535d4a0aeb8a602ab2c5d0
parente1b819c804314c87555e143fd9ea2858c9d2d34c (diff)
downloadfocaccia-qemu-e19807bee357a34b1c56f527203cf6be06fe663b.tar.gz
focaccia-qemu-e19807bee357a34b1c56f527203cf6be06fe663b.zip
linux-user/elfload: Introduce elf_hwcap_str() on s390x
It is required for implementing /proc/cpuinfo emulation.

Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <20230605113950.1169228-4-iii@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
-rw-r--r--linux-user/elfload.c27
-rw-r--r--linux-user/loader.h1
2 files changed, 28 insertions, 0 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 49ec9ccc94..d80d68484b 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -1605,6 +1605,33 @@ uint32_t get_elf_hwcap(void)
     return hwcap;
 }
 
+const char *elf_hwcap_str(uint32_t bit)
+{
+    static const char *hwcap_str[] = {
+        [HWCAP_S390_ESAN3]     = "esan3",
+        [HWCAP_S390_ZARCH]     = "zarch",
+        [HWCAP_S390_STFLE]     = "stfle",
+        [HWCAP_S390_MSA]       = "msa",
+        [HWCAP_S390_LDISP]     = "ldisp",
+        [HWCAP_S390_EIMM]      = "eimm",
+        [HWCAP_S390_DFP]       = "dfp",
+        [HWCAP_S390_HPAGE]     = "edat",
+        [HWCAP_S390_ETF3EH]    = "etf3eh",
+        [HWCAP_S390_HIGH_GPRS] = "highgprs",
+        [HWCAP_S390_TE]        = "te",
+        [HWCAP_S390_VXRS]      = "vx",
+        [HWCAP_S390_VXRS_BCD]  = "vxd",
+        [HWCAP_S390_VXRS_EXT]  = "vxe",
+        [HWCAP_S390_GS]        = "gs",
+        [HWCAP_S390_VXRS_EXT2] = "vxe2",
+        [HWCAP_S390_VXRS_PDE]  = "vxp",
+        [HWCAP_S390_SORT]      = "sort",
+        [HWCAP_S390_DFLT]      = "dflt",
+    };
+
+    return bit < ARRAY_SIZE(hwcap_str) ? hwcap_str[bit] : NULL;
+}
+
 static inline void init_thread(struct target_pt_regs *regs, struct image_info *infop)
 {
     regs->psw.addr = infop->entry;
diff --git a/linux-user/loader.h b/linux-user/loader.h
index ad6ca9dbe3..59cbeacf24 100644
--- a/linux-user/loader.h
+++ b/linux-user/loader.h
@@ -58,6 +58,7 @@ extern unsigned long guest_stack_size;
 
 #ifdef TARGET_S390X
 uint32_t get_elf_hwcap(void);
+const char *elf_hwcap_str(uint32_t bit);
 #endif
 
 #endif /* LINUX_USER_LOADER_H */