diff options
| author | Sven Schnelle <svens@stackframe.org> | 2012-06-17 10:32:55 +0200 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2012-07-02 19:39:08 +0200 |
| commit | 042c1461fb777e583e5de48edf9326e47ee5595f (patch) | |
| tree | 489bf29958a39f8a0169e451c7f080e99d25eadd /src/arch/x86/Kconfig | |
| parent | 9ed1456eff73d1a268eabb84176dd2a2107bf2d7 (diff) | |
Use broadcast SIPI to startup siblings
The current code for initializing AP cpus has several shortcomings:
- it assumes APIC IDs are sequential
- it uses only the BSP for determining the AP count, which is bad if
there's more than one physical CPU, and CPUs are of different type
Note that the new code call cpu->ops->init() in parallel, and therefore
some CPU code needs to be changed to address that. One example are old
Intel HT enabled CPUs which can't do microcode update in parallel.
Change-Id: Ic48a1ebab6a7c52aa76765f497268af09fa38c25
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/1139
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/arch/x86/Kconfig')
| -rw-r--r-- | src/arch/x86/Kconfig | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig index 6d56ec6bfc..4dfbe70280 100644 --- a/src/arch/x86/Kconfig +++ b/src/arch/x86/Kconfig @@ -3,10 +3,6 @@ menu "Architecture (x86)" # This is an SMP option. It relates to starting up APs. # It is usually set in mainboard/*/Kconfig. # TODO: Improve description. -config AP_IN_SIPI_WAIT - bool - default n - depends on ARCH_X86 # Aligns 16bit entry code in bootblock so that hyper-threading CPUs # can boot AP CPUs to enable their shared caches. |