[v3,0/9] target/arm: Implement SEL2 physical and virtual timers

Message

Peter Maydell Feb. 4, 2025, 12:50 p.m. UTC

This patchset is a respin of Alex's patches, with some extra fixes
for bugs I discovered along the way in our existing code (and
a bit of refactoring to make the fixes straightforward). It is:

Based-on: [e-mail]
("target/arm: Clean up some corner cases of sysreg traps")

because it wants to use the renamed CP_ACCESS_* constants that
that patchset introduced.

The bugfixes are not super exciting as they mostly are oddball
corner cases, but I've cc'd them to stable anyway. The actual
implementation of the missing SEL2 timers also should go to stable.

Alex Bennée (4):
  target/arm: Implement SEL2 physical and virtual timers
  target/arm: document the architectural names of our GTIMERs
  hw/arm: enable secure EL2 timers for virt machine
  hw/arm: enable secure EL2 timers for sbsa machine

Peter Maydell (5):
  target/arm: Apply correct timer offset when calculating deadlines
  target/arm: Don't apply CNTVOFF_EL2 for EL2_VIRT timer
  target/arm: Make CNTPS_* UNDEF from Secure EL1 when Secure EL2 is
    enabled
  target/arm: Always apply CNTVOFF_EL2 for CNTV_TVAL_EL02 accesses
  target/arm: Refactor handling of timer offset for direct register
    accesses

 include/hw/arm/bsa.h       |   2 +
 target/arm/cpu.h           |   2 +
 target/arm/gtimer.h        |  14 +-
 target/arm/internals.h     |   5 +-
 hw/arm/sbsa-ref.c          |   2 +
 hw/arm/virt.c              |   2 +
 target/arm/cpu.c           |   4 +
 target/arm/helper.c        | 324 ++++++++++++++++++++++++++++++-------
 target/arm/tcg/op_helper.c |   8 +-
 9 files changed, 296 insertions(+), 67 deletions(-)