[v1] FEAT_RME_GDI initial work

[PATCH 0/3] FEAT_RME_GDI initial work

Jim MacArthur posted 3 patches 1 month, 2 weeks ago

Diff against v2 v3
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Maintainers: Peter Maydell <peter.maydell@linaro.org>

There is a newer version of this series

target/arm/cpu-features.h          |  1 +
target/arm/ptw.c                   |  5 ++++
tests/tcg/aarch64/system/rme_gdi.c | 56 ++++++++++++++++++++++++++++++++++++++
3 files changed, 62 insertions(+)

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[PATCH 0/3] FEAT_RME_GDI initial work

Posted by Jim MacArthur 1 month, 2 weeks ago

Adds FEAT_RME_GDI, some extra cases to arm_granule_protection_check,
and a very basic TCG test to check the prerequisites of FEAT_RME_GDI:
FEAT_RME and FEAT_RME_GPC2.

FEAT_RME_GDI is not enabled yet as no functional support has been
added; it can easily be enabled in cpu_arm_set_rme in future.

In the future we should correctly set bits in the fault address
registers such as PFAR_EL2, but I don't see any apparent support for
these in the existing GPT mechanism. Testing this also gets tricky as
I think this would have to be done from EL3 (e.g. by modifying
test_rme_virt.py)

Signed-off-by: Jim MacArthur <jim.macarthur@linaro.org>
---
Jim MacArthur (3):
      target/arm/cpu-features.c: Add RMEGDI to AA64MMFR4
      target/arm/ptw.c: Add two new spaces to the granule protection case
      tests/tcg/aarch64/system/rme_gdi.c: Very basic test of GDI

 target/arm/cpu-features.h          |  1 +
 target/arm/ptw.c                   |  5 ++++
 tests/tcg/aarch64/system/rme_gdi.c | 56 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 62 insertions(+)
---
base-commit: da6c4fe60fee30dd77267764d55b38af9cb89d4b
change-id: 20260416-jmac-feat_rme_gdi-71c2d2dd6770

Best regards,
-- 
Jim MacArthur <jim.macarthur@linaro.org>