From 4714ae256f8cf75af2631eadc6d275e04f4d5d17 Mon Sep 17 00:00:00 2001 From: Demi Marie Obenour Date: Tue, 20 Dec 2022 16:49:16 +0100 Subject: [PATCH] x86: add memory type constants These are not currently used, so there is no functional change. Future patches will use these constants. Suggested-by: Andrew Cooper Signed-off-by: Demi Marie Obenour Acked-by: Jan Beulich --- 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 28628807cb..42b5f382d4 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__ */