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| author | Borislav Petkov <bp@suse.de> | 2015-04-03 12:42:10 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-04-03 16:29:12 +0300 |
| commit | 7c74d5b7b7b63fc279ed446ebd78de20d81f2824 (patch) | |
| tree | 87c089ed8cd4db6db1f3badad82f5f89bbf13f33 | |
| parent | 78cac48c0434c82e860fade3cd0420a7a4adbb08 (diff) | |
| download | linux-7c74d5b7b7b63fc279ed446ebd78de20d81f2824.tar.xz | |
x86/asm/entry/64: Fix MSR_IA32_SYSENTER_CS MSR value
Commit:
d56fe4bf5f3c ("x86/asm/entry/64: Always set up SYSENTER MSRs")
missed to add "ULL" to the 0 and wrmsrl_safe() complains:
arch/x86/kernel/cpu/common.c: In function ‘syscall_init’:
arch/x86/kernel/cpu/common.c:1226:2: warning: right shift count >= width of type wrmsrl_safe(MSR_IA32_SYSENTER_CS, 0);
Fix it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Will Drewry <wad@chromium.org>
Link: http://lkml.kernel.org/r/1428054130-25847-1-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index a383d53bf0ed..d56d30714d43 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1184,7 +1184,7 @@ void syscall_init(void) wrmsrl_safe(MSR_IA32_SYSENTER_EIP, (u64)ia32_sysenter_target); #else wrmsrl(MSR_CSTAR, ignore_sysret); - wrmsrl_safe(MSR_IA32_SYSENTER_CS, 0); + wrmsrl_safe(MSR_IA32_SYSENTER_CS, 0ULL); wrmsrl_safe(MSR_IA32_SYSENTER_ESP, 0ULL); wrmsrl_safe(MSR_IA32_SYSENTER_EIP, 0ULL); #endif |