1 From: Russ Anderson <rja@sgi.com>
2 Subject: Add UV bios call to change memory protections.
6 Add UV bios call to change memory protections.
8 Signed-off-by: Russ Anderson <rja@sgi.com>
9 Acked-by: Bernhard Walle <bwalle@suse.de>
12 arch/x86/kernel/bios_uv.c | 8 ++++++++
13 include/asm-x86/uv/bios.h | 10 +++++++++-
14 2 files changed, 17 insertions(+), 1 deletion(-)
16 Index: linux/arch/x86/kernel/bios_uv.c
17 ===================================================================
18 --- linux.orig/arch/x86/kernel/bios_uv.c 2008-11-05 11:12:16.101949483 -0600
19 +++ linux/arch/x86/kernel/bios_uv.c 2008-11-05 11:13:15.289411601 -0600
20 @@ -134,6 +134,14 @@ uv_bios_mq_watchlist_free(int blade, int
22 EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_free);
25 +uv_bios_change_memprotect(u64 paddr, u64 len, enum uv_memprotect perms)
27 + return uv_bios_call_irqsave(UV_BIOS_MEMPROTECT, paddr, len,
30 +EXPORT_SYMBOL_GPL(uv_bios_change_memprotect);
32 s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second)
34 return uv_bios_call(UV_BIOS_FREQ_BASE, clock_type,
35 Index: linux/include/asm-x86/uv/bios.h
36 ===================================================================
37 --- linux.orig/include/asm-x86/uv/bios.h 2008-11-05 11:12:16.117951501 -0600
38 +++ linux/include/asm-x86/uv/bios.h 2008-11-05 11:13:15.301413114 -0600
39 @@ -34,7 +34,8 @@ enum uv_bios_cmd {
42 UV_BIOS_WATCHLIST_ALLOC,
43 - UV_BIOS_WATCHLIST_FREE
44 + UV_BIOS_WATCHLIST_FREE,
49 @@ -82,6 +83,12 @@ union uv_watchlist_u {
54 + UV_MEMPROT_RESTRICT_ACCESS,
55 + UV_MEMPROT_ALLOW_AMO,
60 * bios calls have 6 parameters
62 @@ -94,6 +101,7 @@ extern s64 uv_bios_freq_base(u64, u64 *)
63 extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int,
65 extern int uv_bios_mq_watchlist_free(int, int);
66 +extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
68 extern void uv_bios_init(void);