diff options
| author | Ingo Molnar <mingo@elte.hu> | 2008-09-24 10:31:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-09-24 10:31:34 +0200 |
| commit | e6aa0f07cb5e81a7cbeaf3be6e2101234c2f0d30 (patch) | |
| tree | 77926550ac0c31b1423bcf193a4ed0ecb7fda2c1 /arch/x86/power/cpu_32.c | |
| parent | x86, microcode rework, v2, renaming cont. (diff) | |
| parent | Linux 2.6.27-rc7 (diff) | |
| download | linux-e6aa0f07cb5e81a7cbeaf3be6e2101234c2f0d30.tar.xz linux-e6aa0f07cb5e81a7cbeaf3be6e2101234c2f0d30.zip | |
Merge commit 'v2.6.27-rc7' into x86/microcode
Diffstat (limited to 'arch/x86/power/cpu_32.c')
| -rw-r--r-- | arch/x86/power/cpu_32.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/power/cpu_32.c b/arch/x86/power/cpu_32.c index 7dc5d5cf50a2..d3e083dea720 100644 --- a/arch/x86/power/cpu_32.c +++ b/arch/x86/power/cpu_32.c @@ -45,7 +45,7 @@ static void __save_processor_state(struct saved_context *ctxt) ctxt->cr0 = read_cr0(); ctxt->cr2 = read_cr2(); ctxt->cr3 = read_cr3(); - ctxt->cr4 = read_cr4(); + ctxt->cr4 = read_cr4_safe(); } /* Needed by apm.c */ @@ -98,7 +98,9 @@ static void __restore_processor_state(struct saved_context *ctxt) /* * control registers */ - write_cr4(ctxt->cr4); + /* cr4 was introduced in the Pentium CPU */ + if (ctxt->cr4) + write_cr4(ctxt->cr4); write_cr3(ctxt->cr3); write_cr2(ctxt->cr2); write_cr0(ctxt->cr0); |