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boards: qemu_x86_64: enable icount for CONFIG_MP_NUM_CPUS=1

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QEMU icount does not work correctly when more than 1 CPU is used,
but works fine with only 1 CPU enabled. So we can enable icount
on qemu_x86_64 when CONFIG_MP_NUM_CPUS=1. Sanitycheck goes from
~158 seconds to ~113 seconds on my dev machine.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>
This commit is contained in:
Daniel Leung 2020-06-23 14:44:00 -07:00 • committed by Anas Nashif
commit 11afec76d1
1 changed files with 4 additions and 0 deletions
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4
boards/x86/qemu_x86/board.cmake
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@ -9,6 +9,10 @@ endif()
if(CONFIG_X86_64)
set(QEMU_binary_suffix x86_64)
set(QEMU_CPU_TYPE_${ARCH} qemu64,+x2apic)
if("${CONFIG_MP_NUM_CPUS}" STREQUAL "1")
# icount works with 1 CPU so we can enable it here.
list(APPEND QEMU_EXTRA_FLAGS -icount shift=5,align=off,sleep=off -rtc clock=vm)
endif()
else()
set(QEMU_CPU_TYPE_${ARCH} qemu32,+nx,+pae)
if(CONFIG_QEMU_ICOUNT)