These are not currently used, so there is no functional change. Future
patches will use these constants.
Suggested-by: Andrew Cooper <andrew.coop...@citrix.com>
Signed-off-by: Demi Marie Obenour <d...@invisiblethingslab.com>
Acked-by: Jan Beulich <jbeul...@suse.com>
---
Changes since v4:
- Add Jan Beulich’s Acked-by
Changes since v3:
- Name the reserved values X86_MT_RSVD_2 and X86_MT_RSVD_3, to
match the architectural values of 0x02 and 0x03.
Changes since v2:
- Avoid using _AC where not required.
- Define reserved memory types inline
---
xen/arch/x86/include/asm/x86-defns.h | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/xen/arch/x86/include/asm/x86-defns.h
b/xen/arch/x86/include/asm/x86-defns.h
index
28628807cb9897cf6fa8e266f71f5f220813984d..42b5f382d438d21ac97b6438e8c810c7b964cf6d
100644
--- a/xen/arch/x86/include/asm/x86-defns.h
+++ b/xen/arch/x86/include/asm/x86-defns.h
@@ -153,4 +153,15 @@
(1u << X86_EXC_AC) | (1u << X86_EXC_CP) | \
(1u << X86_EXC_VC) | (1u << X86_EXC_SX))
+/* Memory types */
+#define X86_MT_UC 0x00 /* uncachable */
+#define X86_MT_WC 0x01 /* write-combined */
+#define X86_MT_RSVD_2 0x02 /* reserved */
+#define X86_MT_RSVD_3 0x03 /* reserved */
+#define X86_MT_WT 0x04 /* write-through */
+#define X86_MT_WP 0x05 /* write-protect */
+#define X86_MT_WB 0x06 /* write-back */
+#define X86_MT_UCM 0x07 /* UC- */
+#define X86_NUM_MT 0x08
+
#endif /* __XEN_X86_DEFNS_H__ */
--
Sincerely,
Demi Marie Obenour (she/her/hers)
Invisible Things Lab
