diff mbox

[v6,06/47] Provide runtime Target page information

Message ID 1429031053-4454-7-git-send-email-dgilbert@redhat.com
State New
Headers show

Commit Message

Dr. David Alan Gilbert April 14, 2015, 5:03 p.m. UTC 
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

The migration code generally is built target-independent, however
there are a few places where knowing the target page size would
avoid artificially moving stuff into arch_init.

Provide 'qemu_target_page_bits()' that returns TARGET_PAGE_BITS
to other bits of code so that they can stay target-independent.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
---
 exec.c                  | 10 ++++++++++
 include/sysemu/sysemu.h |  1 +
 2 files changed, 11 insertions(+)

Comments

Amit Shah May 18, 2015, 7:06 a.m. UTC | #1 
On (Tue) 14 Apr 2015 [18:03:32], Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
> 
> The migration code generally is built target-independent, however
> there are a few places where knowing the target page size would
> avoid artificially moving stuff into arch_init.
> 
> Provide 'qemu_target_page_bits()' that returns TARGET_PAGE_BITS
> to other bits of code so that they can stay target-independent.
> 
> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

Reviewed-by: Amit Shah <amit.shah@redhat.com>


		Amit
diff mbox

Patch

diff --git a/exec.c b/exec.c
index 7693794..c3027cf 100644
--- a/exec.c
+++ b/exec.c
@@ -3038,6 +3038,16 @@  int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
     }
     return 0;
 }
+
+/*
+ * Allows code that needs to deal with migration bitmaps etc to still be built
+ * target independent.
+ */
+size_t qemu_target_page_bits(void)
+{
+    return TARGET_PAGE_BITS;
+}
+
 #endif
 
 /*
diff --git a/include/sysemu/sysemu.h b/include/sysemu/sysemu.h
index 7a1ea91..bd67f86 100644
--- a/include/sysemu/sysemu.h
+++ b/include/sysemu/sysemu.h
@@ -68,6 +68,7 @@  int qemu_reset_requested_get(void);
 void qemu_system_killed(int signal, pid_t pid);
 void qemu_devices_reset(void);
 void qemu_system_reset(bool report);
+size_t qemu_target_page_bits(void);
 
 void qemu_add_exit_notifier(Notifier *notify);
 void qemu_remove_exit_notifier(Notifier *notify);