diff mbox series

[02/24] exec: Expose 'target_page.h' API to user emulation

Message ID 20231211212003.21686-3-philmd@linaro.org
State Superseded
Headers show
Series exec: Rework of various headers (user focused) | expand

Commit Message

Philippe Mathieu-Daudé Dec. 11, 2023, 9:19 p.m. UTC 
User-only objects might benefit from the "exec/target_page.h"
API, which allows to build some objects once for all targets.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 meson.build      |  2 +-
 page-target.c    | 43 +++++++++++++++++++++++++++++++++++++++++++
 system/physmem.c | 35 -----------------------------------
 3 files changed, 44 insertions(+), 36 deletions(-)
 create mode 100644 page-target.c

Comments

Warner Losh Dec. 11, 2023, 9:54 p.m. UTC | #1 
On Mon, Dec 11, 2023 at 2:20 PM Philippe Mathieu-Daudé <philmd@linaro.org>
wrote:

> User-only objects might benefit from the "exec/target_page.h"
> API, which allows to build some objects once for all targets.
>
> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> ---
>  meson.build      |  2 +-
>  page-target.c    | 43 +++++++++++++++++++++++++++++++++++++++++++
>  system/physmem.c | 35 -----------------------------------
>  3 files changed, 44 insertions(+), 36 deletions(-)
>  create mode 100644 page-target.c
>

Reviewed-by: Warner Losh <imp@bsdimp.com>
Richard Henderson Dec. 11, 2023, 10:14 p.m. UTC | #2 
On 12/11/23 13:19, Philippe Mathieu-Daudé wrote:
> User-only objects might benefit from the "exec/target_page.h"
> API, which allows to build some objects once for all targets.
> 
> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
> ---
>   meson.build      |  2 +-
>   page-target.c    | 43 +++++++++++++++++++++++++++++++++++++++++++
>   system/physmem.c | 35 -----------------------------------
>   3 files changed, 44 insertions(+), 36 deletions(-)
>   create mode 100644 page-target.c

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


r~
diff mbox series

Patch

diff --git a/meson.build b/meson.build
index d2c4c2adb3..5fdc4ef8db 100644
--- a/meson.build
+++ b/meson.build
@@ -3488,7 +3488,7 @@  if get_option('b_lto')
   pagevary = declare_dependency(link_with: pagevary)
 endif
 common_ss.add(pagevary)
-specific_ss.add(files('page-vary-target.c'))
+specific_ss.add(files('page-target.c', 'page-vary-target.c'))
 
 subdir('backends')
 subdir('disas')
diff --git a/page-target.c b/page-target.c
new file mode 100644
index 0000000000..d286e2d58b
--- /dev/null
+++ b/page-target.c
@@ -0,0 +1,43 @@ 
+/*
+ * QEMU page values getters (target independent)
+ *
+ *  Copyright (c) 2003 Fabrice Bellard
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#include "qemu/osdep.h"
+#include "exec/target_page.h"
+#include "exec/cpu-defs.h"
+#include "exec/cpu-all.h"
+
+size_t qemu_target_page_size(void)
+{
+    return TARGET_PAGE_SIZE;
+}
+
+int qemu_target_page_mask(void)
+{
+    return TARGET_PAGE_MASK;
+}
+
+int qemu_target_page_bits(void)
+{
+    return TARGET_PAGE_BITS;
+}
+
+int qemu_target_page_bits_min(void)
+{
+    return TARGET_PAGE_BITS_MIN;
+}
+
+/* Convert target pages to MiB (2**20). */
+size_t qemu_target_pages_to_MiB(size_t pages)
+{
+    int page_bits = TARGET_PAGE_BITS;
+
+    /* So far, the largest (non-huge) page size is 64k, i.e. 16 bits. */
+    g_assert(page_bits < 20);
+
+    return pages >> (20 - page_bits);
+}
diff --git a/system/physmem.c b/system/physmem.c
index a63853a7bc..4bdb3d0592 100644
--- a/system/physmem.c
+++ b/system/physmem.c
@@ -3422,41 +3422,6 @@  int cpu_memory_rw_debug(CPUState *cpu, vaddr addr,
     return 0;
 }
 
-/*
- * Allows code that needs to deal with migration bitmaps etc to still be built
- * target independent.
- */
-size_t qemu_target_page_size(void)
-{
-    return TARGET_PAGE_SIZE;
-}
-
-int qemu_target_page_mask(void)
-{
-    return TARGET_PAGE_MASK;
-}
-
-int qemu_target_page_bits(void)
-{
-    return TARGET_PAGE_BITS;
-}
-
-int qemu_target_page_bits_min(void)
-{
-    return TARGET_PAGE_BITS_MIN;
-}
-
-/* Convert target pages to MiB (2**20). */
-size_t qemu_target_pages_to_MiB(size_t pages)
-{
-    int page_bits = TARGET_PAGE_BITS;
-
-    /* So far, the largest (non-huge) page size is 64k, i.e. 16 bits. */
-    g_assert(page_bits < 20);
-
-    return pages >> (20 - page_bits);
-}
-
 bool cpu_physical_memory_is_io(hwaddr phys_addr)
 {
     MemoryRegion*mr;