diff options
Diffstat (limited to 'arch/x86/Kconfig.cpu')
| -rw-r--r-- | arch/x86/Kconfig.cpu | 51 |
1 files changed, 28 insertions, 23 deletions
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 6156ac25ff8..f8843c3ae77 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -382,14 +382,17 @@ config X86_OOSTORE # P6_NOPs are a relatively minor optimization that require a family >= # 6 processor, except that it is broken on certain VIA chips. # Furthermore, AMD chips prefer a totally different sequence of NOPs -# (which work on all CPUs). As a result, disallow these if we're -# compiling X86_GENERIC but not X86_64 (these NOPs do work on all -# x86-64 capable chips); the list of processors in the right-hand clause -# are the cores that benefit from this optimization. +# (which work on all CPUs). In addition, it looks like Virtual PC +# does not understand them. +# +# As a result, disallow these if we're not compiling for X86_64 (these +# NOPs do work on all x86-64 capable chips); the list of processors in +# the right-hand clause are the cores that benefit from this optimization. # config X86_P6_NOP def_bool y - depends on (X86_64 || !X86_GENERIC) && (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MPENTIUM4 || MPSC) + depends on X86_64 + depends on (MCORE2 || MPENTIUM4 || MPSC) config X86_TSC def_bool y @@ -423,17 +426,9 @@ menuconfig PROCESSOR_SELECT This lets you choose what x86 vendor support code your kernel will include. -config CPU_SUP_INTEL_32 +config CPU_SUP_INTEL default y bool "Support Intel processors" if PROCESSOR_SELECT - depends on !64BIT - help - This enables extended support for Intel processors - -config CPU_SUP_INTEL_64 - default y - bool "Support Intel processors" if PROCESSOR_SELECT - depends on 64BIT help This enables extended support for Intel processors @@ -444,17 +439,9 @@ config CPU_SUP_CYRIX_32 help This enables extended support for Cyrix processors -config CPU_SUP_AMD_32 - default y - bool "Support AMD processors" if PROCESSOR_SELECT - depends on !64BIT - help - This enables extended support for AMD processors - -config CPU_SUP_AMD_64 +config CPU_SUP_AMD default y bool "Support AMD processors" if PROCESSOR_SELECT - depends on 64BIT help This enables extended support for AMD processors @@ -485,3 +472,21 @@ config CPU_SUP_UMC_32 depends on !64BIT help This enables extended support for UMC processors + +config X86_DS + bool "Debug Store support" + default y + help + Add support for Debug Store. + This allows the kernel to provide a memory buffer to the hardware + to store various profiling and tracing events. + +config X86_PTRACE_BTS + bool "ptrace interface to Branch Trace Store" + default y + depends on (X86_DS && X86_DEBUGCTLMSR) + help + Add a ptrace interface to allow collecting an execution trace + of the traced task. + This collects control flow changes in a (cyclic) buffer and allows + debuggers to fill in the gaps and show an execution trace of the debuggee. |