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authorH. Peter Anvin <hpa@zytor.com>2009-09-04 17:00:09 (GMT)
committerH. Peter Anvin <hpa@zytor.com>2009-09-04 17:00:09 (GMT)
commitb19ae3999891cad21a3995c34d313dda5df014e2 (patch)
tree6a82be9eda154f03e7cbb67f2483f54a4d596082 /arch/x86/lib
parent0d96b9ff748b5f57d6f1d6d21209f5745245aadc (diff)
downloadlinux-fsl-qoriq-b19ae3999891cad21a3995c34d313dda5df014e2.tar.xz
x86, msr: change msr-reg.o to obj-y, and export its symbols
Change msr-reg.o to obj-y (it will be included in virtually every kernel since it is used by the initialization code for AMD processors) and add a separate C file to export its symbols to modules, so that msr.ko can use them; on uniprocessors we bypass the helper functions in msr.o and use the accessor functions directly via inlines. Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <20090904140834.GA15789@elte.hu> Cc: Borislav Petkov <petkovbb@googlemail.com>
Diffstat (limited to 'arch/x86/lib')
-rw-r--r--arch/x86/lib/Makefile3
-rw-r--r--arch/x86/lib/msr-reg-export.c5
2 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index b59c064..9e60920 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -8,7 +8,8 @@ lib-y := delay.o
lib-y += thunk_$(BITS).o
lib-y += usercopy_$(BITS).o getuser.o putuser.o
lib-y += memcpy_$(BITS).o
-lib-y += msr-reg.o
+
+obj-y += msr-reg.o msr-reg-export.o
ifeq ($(CONFIG_X86_32),y)
obj-y += atomic64_32.o
diff --git a/arch/x86/lib/msr-reg-export.c b/arch/x86/lib/msr-reg-export.c
new file mode 100644
index 0000000..a311cc5
--- /dev/null
+++ b/arch/x86/lib/msr-reg-export.c
@@ -0,0 +1,5 @@
+#include <linux/module.h>
+#include <asm/msr.h>
+
+EXPORT_SYMBOL(native_rdmsr_safe_regs);
+EXPORT_SYMBOL(native_wrmsr_safe_regs);