[PATCH 0/3] aarch64: boot in to EL1NS

Gedare Bloom gedare at rtems.org
Wed Jan 12 18:40:06 UTC 2022


Thanks, I checked these in.

On Thu, Jan 6, 2022 at 3:38 PM Kinsey Moore <kinsey.moore at oarcorp.com> wrote:
>
> These changes look good. I'm glad you were able to simplify this a bit.
>
> As for the test failures, they all fall into that category of timing sensitive tests that QEMU breaks with large bursts of near-simultaneous timer ticks.
>
> Kinsey
>
> -----Original Message-----
> From: devel <devel-bounces at rtems.org> On Behalf Of Gedare Bloom
> Sent: Thursday, January 6, 2022 16:23
> To: devel at rtems.org
> Subject: Re: [PATCH 0/3] aarch64: boot in to EL1NS
>
> rtems-test results for xilinx-zynqmp_lp64_qemu with RTEMS_SMP:
>
> Passed:        632
> Failed:          5
> User Input:      5
> Expected Fail:   0
> Indeterminate:   3
> Benchmark:       3
> Timeout:         1
> Test too long:   1
> Invalid:         0
> Wrong Version:   0
> Wrong Build:     0
> Wrong Tools:     0
> Wrong Header:    0
> ------------------
> Total:         650
> Failures:
>  spintrcritical24.exe
>  smpschededf01.exe
>  smpmrsp01.exe
>  spintrcritical21.exe
>  smpschedaffinity02.exe
>
> On Thu, Jan 6, 2022 at 3:13 PM Gedare Bloom <gedare at rtems.org> wrote:
> >
> > This patch series resolves a lingering problem with the
> > aarch64 port for the versal, which uses gicv3, that it
> > is not possible to initialize the GIC distributor and
> > redistributor (cpuif) while in the non-secure world.
> > Previously we added a configuration option to allow
> > running RTEMS in secure world as a way to overcome
> > this problem, but that is not the right thing to do
> > in general. Only trusted firmware is expected to run
> > in secure world, and it is not supported to run an SMP
> > kernel in secure world, so this problem needs a different
> > fix.
> >
> > We now use the bsp_start_hook_0 to initialize the GIC from
> > EL3 secure before stepping down to EL1NS.
> > This hook is only called when execution begins in EL3S, which is the
> > case for the versal running on qemu. GIC initialization is still
> > attempted again during the generic IRQ initialization. BSPs that
> > start in EL2 or EL1, or that use gicv2, behave as before, but the
> > BSP-specific SMP initialization for xilinx-zynqmp moves from hook_0
> > to hook_1.
> >
> > rtems-test results for xilinx-versal_lp64_qemu:
> > Passed:        578
> > Failed:          2
> > User Input:      5
> > Expected Fail:   0
> > Indeterminate:   0
> > Benchmark:       3
> > Timeout:         1
> > Test too long:   2
> > Invalid:         0
> > Wrong Version:   0
> > Wrong Build:     0
> > Wrong Tools:     0
> > Wrong Header:    0
> > ------------------
> > Total:         591
> > Failures:
> >  sp69.exe
> >  spintrcritical21.exe
> >
> > ------------------
> >
> > rtems-test results for xilinx-zynqmp_lp64_qemu:
> >
> > Passed:        577
> > Failed:          1
> > User Input:      5
> > Expected Fail:   0
> > Indeterminate:   3
> > Benchmark:       3
> > Timeout:         1
> > Test too long:   1
> > Invalid:         0
> > Wrong Version:   0
> > Wrong Build:     0
> > Wrong Tools:     0
> > Wrong Header:    0
> > ------------------
> > Total:         591
> > Failures:
> >  spintrcritical21.exe
> >
> > ------------------
> >
> > Gedare Bloom (3):
> >   bsps/aarch64: refactor register init and hooks
> >   arm/gicv3: refactor DIST initialization to helper
> >   aarch64: always boot into EL1NS
> >
> >  bsps/aarch64/shared/start/start.S             | 127 ++++++++++--------
> >  .../xilinx-versal/start/bspstarthooks.c       |   3 +-
> >  .../xilinx-zynqmp/start/bspstarthooks.c       |  12 +-
> >  bsps/shared/dev/irq/arm-gicv3.c               |  75 +++++------
> >  spec/build/bsps/aarch64/a53/grp.yml           |   2 -
> >  spec/build/bsps/aarch64/a72/grp.yml           |   2 -
> >  spec/build/bsps/aarch64/optisns.yml           |  20 ---
> >  spec/build/bsps/aarch64/xilinx-versal/grp.yml |   2 -
> >  spec/build/bsps/aarch64/xilinx-zynqmp/grp.yml |   2 -
> >  9 files changed, 109 insertions(+), 136 deletions(-)
> >  delete mode 100644 spec/build/bsps/aarch64/optisns.yml
> >
> > --
> > 2.25.1
> >
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