Commit 761bfe07b2 for qemu.org

commit 761bfe07b2c954251e25d636e2febb1c2a2e9eea
Author: Richard Henderson <richard.henderson@linaro.org>
Date:   Tue Aug 11 16:01:41 2026 -0700

    util/cpuinfo-aarch64: Detect FEAT_CSSC

    Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/host/include/aarch64/host/cpuinfo.h b/host/include/aarch64/host/cpuinfo.h
index fe671534e4..c32c04dade 100644
--- a/host/include/aarch64/host/cpuinfo.h
+++ b/host/include/aarch64/host/cpuinfo.h
@@ -12,6 +12,7 @@
 #define CPUINFO_AES             (1u << 3)
 #define CPUINFO_PMULL           (1u << 4)
 #define CPUINFO_BTI             (1u << 5)
+#define CPUINFO_CSSC            (1u << 6)

 /* Initialized with a constructor. */
 extern unsigned cpuinfo;
diff --git a/util/cpuinfo-aarch64.c b/util/cpuinfo-aarch64.c
index 288074c08f..4ce6deb7c8 100644
--- a/util/cpuinfo-aarch64.c
+++ b/util/cpuinfo-aarch64.c
@@ -72,6 +72,7 @@ unsigned __attribute__((constructor)) cpuinfo_init(void)

     unsigned long hwcap2 = qemu_getauxval(AT_HWCAP2);
     info |= (hwcap2 & HWCAP2_BTI ? CPUINFO_BTI : 0);
+    info |= (hwcap2 & HWCAP2_CSSC ? CPUINFO_CSSC : 0);
 #endif
 #ifdef CONFIG_DARWIN
     info |= sysctl_for_bool("hw.optional.arm.FEAT_LSE") * CPUINFO_LSE;
@@ -79,6 +80,7 @@ unsigned __attribute__((constructor)) cpuinfo_init(void)
     info |= sysctl_for_bool("hw.optional.arm.FEAT_AES") * CPUINFO_AES;
     info |= sysctl_for_bool("hw.optional.arm.FEAT_PMULL") * CPUINFO_PMULL;
     info |= sysctl_for_bool("hw.optional.arm.FEAT_BTI") * CPUINFO_BTI;
+    info |= sysctl_for_bool("hw.optional.arm.FEAT_CSSC") * CPUINFO_CSSC;
 #endif
 #if defined(__OpenBSD__) && !defined(CONFIG_ELF_AUX_INFO)
     int mib[2];