x86: uv: Add UV memory protection bios call
Add UV bios call to change memory protections.
Signed-off-by: Russ Anderson <rja@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index 58105c5..a301a56 100644
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -34,7 +34,8 @@
UV_BIOS_GET_SN_INFO,
UV_BIOS_FREQ_BASE,
UV_BIOS_WATCHLIST_ALLOC,
- UV_BIOS_WATCHLIST_FREE
+ UV_BIOS_WATCHLIST_FREE,
+ UV_BIOS_MEMPROTECT
};
/*
@@ -82,6 +83,12 @@
};
};
+enum uv_memprotect {
+ UV_MEMPROT_RESTRICT_ACCESS,
+ UV_MEMPROT_ALLOW_AMO,
+ UV_MEMPROT_ALLOW_RW
+};
+
/*
* bios calls have 6 parameters
*/
@@ -94,6 +101,7 @@
extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int,
unsigned long *);
extern int uv_bios_mq_watchlist_free(int, int);
+extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
extern void uv_bios_init(void);