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cpu/qemu-x86: Drop select SMP 

With MAX_CPUS==1, this has the effect of removing spinlock
implementation. But since is_smp_boot() evaluates false and
SMM uses separate smi_semaphore, there is no concurrency to
protect against with a spinlock.

Change-Id: I7c2ac221af78055879e7359bd03907f2416a9919
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43865
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Kyösti Mälkki 2019-11-23 06:24:41 +02:00 committed by Nico Huber
parent e92abdf207
commit 57550a28b8
1 changed files with 0 additions and 1 deletions
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1
src/cpu/qemu-x86/Kconfig
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@ -2,7 +2,6 @@
config CPU_QEMU_X86 config CPU_QEMU_X86
bool bool
select SMP
select UDELAY_TSC select UDELAY_TSC
select TSC_MONOTONIC_TIMER select TSC_MONOTONIC_TIMER
select UNKNOWN_TSC_RATE select UNKNOWN_TSC_RATE