linux-user: Move init_guest_commpage to hppa/elfload.c

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 0 insertions, 32 deletions

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 2281853c57..25f29e60de 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -415,38 +415,6 @@ static const VdsoImageInfo *vdso_image_info(uint32_t elf_flags)
 
 #define VDSO_HEADER "vdso.c.inc"
 
-#define LO_COMMPAGE  0
-
-static bool init_guest_commpage(void)
-{
-    /* If reserved_va, then we have already mapped 0 page on the host. */
-    if (!reserved_va) {
-        void *want, *addr;
-
-        want = g2h_untagged(LO_COMMPAGE);
-        addr = mmap(want, TARGET_PAGE_SIZE, PROT_NONE,
-                    MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED_NOREPLACE, -1, 0);
-        if (addr == MAP_FAILED) {
-            perror("Allocating guest commpage");
-            exit(EXIT_FAILURE);
-        }
-        if (addr != want) {
-            return false;
-        }
-    }
-
-    /*
-     * On Linux, page zero is normally marked execute only + gateway.
-     * Normal read or write is supposed to fail (thus PROT_NONE above),
-     * but specific offsets have kernel code mapped to raise permissions
-     * and implement syscalls.  Here, simply mark the page executable.
-     * Special case the entry points during translation (see do_page_zero).
-     */
-    page_set_flags(LO_COMMPAGE, LO_COMMPAGE | ~TARGET_PAGE_MASK,
-                   PAGE_EXEC | PAGE_VALID);
-    return true;
-}
-
 #endif /* TARGET_HPPA */
 
 #ifdef TARGET_XTENSA