1 files changed, 52 insertions, 0 deletions
diff --git a/roms/skiboot/asm/cvc_entry.S b/roms/skiboot/asm/cvc_entry.S
new file mode 100644
index 000000000..3f314ee46
--- /dev/null
+++ b/roms/skiboot/asm/cvc_entry.S
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+# Derived from automatically generated HostBoot rom_entry.S
+
+#include <asm-utils.h>
+#include <processor.h>
+
+# Updated hostboot location is src/securerom/rom_entry.S.
+# This also has a fix for TOC save frame pointer.
+
+#include <stack.h>
+
+.section .text
+
+.global __cvc_verify_v1
+.global __cvc_sha512_v1
+
+__cvc_verify_v1:
+__cvc_sha512_v1:
+
+call_rom_entry:
+    mflr %r0
+    std %r0, 16(%r1)
+    stdu %r1, -128(%r1)
+    std %r2, STACK_TOC_OFFSET(%r1)
+    li %r2, 0
+    mtctr %r3
+    mr %r3, %r4
+    mr %r4, %r5
+    mr %r5, %r6
+    mr %r6, %r7
+    mr %r7, %r8
+#if HAVE_BIG_ENDIAN
+    bctrl
+#else
+    bl $+4
+1:  mflr %r9
+    addi %r9,%r9,2f - 1b
+    mtspr SPR_HSRR0, %r9
+    mfmsr %r9
+    xori %r9,%r9,MSR_LE
+    mtspr SPR_HSRR1, %r9
+    hrfid
+2:  .long 0x2104804e /* bctrl */
+    FIXUP_ENDIAN
+#endif
+    ld %r2, STACK_TOC_OFFSET(%r1)
+    addi %r1, %r1, 128
+    ld %r0, 16(%r1)
+    mtlr %r0
+    blr
+