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qemumips: Use 34Kf CPU emulation

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Few years ago we switched to using mips32r2 tunings for qemumips however
the default CPU emulation still remained 24Kf which is not optimal for
mips32r2 ISA for qemu [1], therefore switch to recommended 32Kf for CPU
emulation when running qemu in system mode

Boot time to console is ~1s faster with this setting, hopefully this
should speed up qemumips in general

[1] https://www.qemu.org/docs/master/system/target-mips.html#preferred-cpu-models-for-mips-hosts

(From OE-Core rev: 6f24a70ed9323a89cb9d0e6c56bacb6a59e2c31f)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit e68d2afd4a5529437824b5d6b9a2077c2fefd337)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Khem Raj
2020-07-28 19:28:52 -07:00
committed by Richard Purdie
parent 09c99632ac
commit ff84adc9d2
1 changed files with 2 additions and 0 deletions
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2
meta/conf/machine/qemumips.conf
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@@ -12,3 +12,5 @@ KERNEL_ALT_IMAGETYPE = "vmlinux.bin"
SERIAL_CONSOLES ?= "115200;ttyS0 115200;ttyS1"
QB_SYSTEM_NAME = "qemu-system-mips"
QB_CPU = "-cpu 34Kf"