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| author | Len Brown <len.brown@intel.com> | 2013-08-30 10:58:21 +0200 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2013-08-30 10:58:21 +0200 |
| commit | 3642ba0f692cfa9319fdeca82268238daba23794 (patch) | |
| tree | 5a9306754e307342515d6fcb6f6751bf645eb2df /xen/include | |
| parent | c6066e78f4a66005b0d5d86c6ade32e2ab78923a (diff) | |
| download | xen-3642ba0f692cfa9319fdeca82268238daba23794.tar.gz xen-3642ba0f692cfa9319fdeca82268238daba23794.tar.bz2 xen-3642ba0f692cfa9319fdeca82268238daba23794.zip | |
x86/mwait_idle: remove assumption of one C-state per MWAIT flag
Remove the assumption that cstate_tables are indexed by MWAIT flag
values. Each entry identifies itself via its own flags value. This
change is needed to support multiple states that share the same MWAIT
flags.
Note that this can have an effect on what state is described by 'N' on
cmdline max_cstate=N on some systems.
Signed-off-by: Len Brown <len.brown@intel.com>
Avoided the effect of changing the meaning of "max_cstate=".
Drop MWAIT_MAX_NUM_CSTATES (done differently in a prior patch on
Linux).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>
Diffstat (limited to 'xen/include')
| -rw-r--r-- | xen/include/asm-x86/mwait.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/xen/include/asm-x86/mwait.h b/xen/include/asm-x86/mwait.h index 3ad3d9ca1d..ba9c0ea096 100644 --- a/xen/include/asm-x86/mwait.h +++ b/xen/include/asm-x86/mwait.h @@ -4,7 +4,6 @@ #define MWAIT_SUBSTATE_MASK 0xf #define MWAIT_CSTATE_MASK 0xf #define MWAIT_SUBSTATE_SIZE 4 -#define MWAIT_MAX_NUM_CSTATES 8 #define CPUID_MWAIT_LEAF 5 #define CPUID5_ECX_EXTENSIONS_SUPPORTED 0x1 |