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-rw-r--r--bsd-user/main.c12
-rw-r--r--bsd-user/qemu.h7
2 files changed, 19 insertions, 0 deletions
diff --git a/bsd-user/main.c b/bsd-user/main.c
index 6ab3efd6c0..512d4ab69f 100644
--- a/bsd-user/main.c
+++ b/bsd-user/main.c
@@ -49,6 +49,13 @@
 #include "host-os.h"
 #include "target_arch_cpu.h"
 
+
+/*
+ * TODO: Remove these and rely only on qemu_real_host_page_size().
+ */
+uintptr_t qemu_host_page_size;
+intptr_t qemu_host_page_mask;
+
 static bool opt_one_insn_per_tb;
 uintptr_t guest_base;
 bool have_guest_base;
@@ -307,6 +314,9 @@ int main(int argc, char **argv)
         (void) envlist_setenv(envlist, *wrk);
     }
 
+    qemu_host_page_size = getpagesize();
+    qemu_host_page_size = MAX(qemu_host_page_size, TARGET_PAGE_SIZE);
+
     cpu_model = NULL;
 
     qemu_add_opts(&qemu_trace_opts);
@@ -404,6 +414,8 @@ int main(int argc, char **argv)
         }
     }
 
+    qemu_host_page_mask = -qemu_host_page_size;
+
     /* init debug */
     {
         int mask = 0;
diff --git a/bsd-user/qemu.h b/bsd-user/qemu.h
index dc842fffa7..c05c512767 100644
--- a/bsd-user/qemu.h
+++ b/bsd-user/qemu.h
@@ -40,6 +40,13 @@ extern char **environ;
 
 #include "qemu-os.h"
 /*
+ * TODO: Remove these and rely only on qemu_real_host_page_size().
+ */
+extern uintptr_t qemu_host_page_size;
+extern intptr_t qemu_host_page_mask;
+#define HOST_PAGE_ALIGN(addr) ROUND_UP((addr), qemu_host_page_size)
+
+/*
  * This struct is used to hold certain information about the image.  Basically,
  * it replicates in user space what would be certain task_struct fields in the
  * kernel