| Message ID | 20250405001042.1470552-1-rananta@google.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | KVM : selftests: arm64: Explicitly set the page attrs to Inner-Shareable | expand |
On Sat, 05 Apr 2025 00:10:40 +0000, Raghavendra Rao Ananta wrote: > The series fixes a conflict in memory attributes in some > implementations, > such as Neoverse-N3, that causes a data abort in guest EL1 with FSC > 0x35 (IMPLEMENTATION DEFINED fault (Unsupported Exclusive or Atomic > access)). > > Patch-1 is a cleanup patch that replaces numbers (and comments) to > using proper macros for hardware configuration, such as registers and > page-table entries. > > [...] I cleaned up the changelog on patch 2 per the discussion + added a note about the interaction with LPA2. Applied to fixes, thanks! [1/2] KVM: selftests: arm64: Introduce and use hardware-definition macros https://git.kernel.org/kvmarm/kvmarm/c/d8d78398e550 [2/2] KVM: selftests: arm64: Explicitly set the page attrs to Inner-Shareable https://git.kernel.org/kvmarm/kvmarm/c/c8631ea59b65 -- Best, Oliver
The series fixes a conflict in memory attributes in some implementations, such as Neoverse-N3, that causes a data abort in guest EL1 with FSC 0x35 (IMPLEMENTATION DEFINED fault (Unsupported Exclusive or Atomic access)). Patch-1 is a cleanup patch that replaces numbers (and comments) to using proper macros for hardware configuration, such as registers and page-table entries. Patch-2 fixes the actual bug and sets the page attrs to Inner-Shareable by default for the VMs created in the selftests. More details are presented in the commit text. v1: https://lore.kernel.org/all/20250404220659.1312465-1-rananta@google.com/ v1 -> v2: Addressed Oliver's comments (thank you) - Moved the TCR_* macros from tools' sysreg.h to selftests' local processor.h in patch-1. - Adjsted the citations to describe the issue more appropriately in patch-2. Raghavendra Rao Ananta (2): KVM: selftests: arm64: Introduce and use hardware-definition macros KVM: selftests: arm64: Explicitly set the page attrs to Inner-Shareable .../selftests/kvm/arm64/page_fault_test.c | 2 +- .../selftests/kvm/include/arm64/processor.h | 67 +++++++++++++++++-- .../selftests/kvm/lib/arm64/processor.c | 60 ++++++++++------- 3 files changed, 96 insertions(+), 33 deletions(-) base-commit: 38fec10eb60d687e30c8c6b5420d86e8149f7557