'max' implies that it's not stable and will change depending on qemu version and build settings. Can you set it to a specific model?
Alex On Wed, 7 Jul 2021 at 10:55, Yu, Mingli <mingli...@windriver.com> wrote: > From: Mingli Yu <mingli...@windriver.com> > > After rng-tools upgraded to 6.13, the below logic introduced. > 9070a04 Add support for ARM v8.5A "rndr" instruction > > It means there is another entropy source rndr added for arm64, > so modify the cpu model to max [1] to make the rndr entropy source > function available and also used to silence the below failed message > when start rngd service on qemuarm64. > "[rndr ]: Initialization Failed" > > Before the patch: > $ systemctl status rngd > [snip] > Jul 05 07:15:47 qemuarm64 systemd[1]: Started Hardware RNG Entropy > Gatherer Daemon. > Jul 05 07:15:48 qemuarm64 rngd[152]: Initializing available sources > Jul 05 07:15:48 qemuarm64 rngd[152]: [hwrng ]: Initialized > Jul 05 07:15:48 qemuarm64 rngd[152]: [rndr ]: No HW SUPPORT > Jul 05 07:15:48 qemuarm64 rngd[152]: [rndr ]: Initialization Failed > Jul 05 07:15:48 qemuarm64 rngd[152]: [jitter]: Initializing AES buffer > Jul 05 07:16:14 qemuarm64 rngd[152]: [jitter]: Enabling JITTER rng support > Jul 05 07:16:14 qemuarm64 rngd[152]: [jitter]: Initialized > > After the patch: > $ systemctl status rngd > [snip] > Jul 07 08:48:30 qemuarm64 systemd[1]: Started Hardware RNG Entropy > Gatherer Daemon. > Jul 07 08:48:34 qemuarm64 rngd[164]: Initializing available sources > Jul 07 08:48:34 qemuarm64 rngd[164]: [hwrng ]: Initialized > Jul 07 08:48:34 qemuarm64 rngd[164]: [rndr ]: Enabling aarch64 RNDR rng > support > Jul 07 08:48:34 qemuarm64 rngd[164]: [rndr ]: Initialized > Jul 07 08:48:35 qemuarm64 rngd[164]: [jitter]: Initializing AES buffer > > [1] https://github.com/nhorman/rng-tools/pull/128 > > Signed-off-by: Mingli Yu <mingli...@windriver.com> > --- > meta/conf/machine/qemuarm64.conf | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/meta/conf/machine/qemuarm64.conf > b/meta/conf/machine/qemuarm64.conf > index 150a0744eb..a792dc32e6 100644 > --- a/meta/conf/machine/qemuarm64.conf > +++ b/meta/conf/machine/qemuarm64.conf > @@ -15,7 +15,7 @@ SERIAL_CONSOLES_CHECK = "${SERIAL_CONSOLES}" > # For runqemu > QB_SYSTEM_NAME = "qemu-system-aarch64" > QB_MACHINE = "-machine virt" > -QB_CPU = "-cpu cortex-a57" > +QB_CPU = "-cpu max" > QB_SMP = "-smp 4" > QB_CPU_KVM = "-cpu host -machine gic-version=3" > # For graphics to work we need to define the VGA device as well as the > necessary USB devices > -- > 2.17.1 > > > > >
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