This is a respin of a series I posted in the 5.7 time frame, and
completely forgot about it until I noticed again that a few things
where not what I remembered... Given how long it has been, I'm
pretending this is all new work.
Anyway, this covers a few gaps in our ID register handling for PMU and
Debug, plus the upgrade of the PMU support to 8.4 when possible.
I don't plan to take this into 5.11, but this is a likely candidate
for 5.12. Note that this conflicts with fixes that are on their way to
5.11. I'll probably end-up dragging the fixes into 5.12 to solve it.
* From v1 [1]:
- Upgrade AArch32 to PMUv8.4 if possible
- Don't advertise STALL_SLOT when advertising PMU 8.4
- Add an extra patch replacing raw values for the PMU version with
the already existing symbolaic values
[1] https://lore.kernel.org/r/20210114105633.2558739-1-maz@xxxxxxxxxx
Marc Zyngier (7):
KVM: arm64: Fix missing RES1 in emulation of DBGBIDR
KVM: arm64: Fix AArch32 PMUv3 capping
KVM: arm64: Add handling of AArch32 PCMEID{2,3} PMUv3 registers
KVM: arm64: Refactor filtering of ID registers
KVM: arm64: Limit the debug architecture to ARMv8.0
KVM: arm64: Upgrade PMU support to ARMv8.4
KVM: arm64: Use symbolic names for the PMU versions
arch/arm64/include/asm/sysreg.h | 3 ++
arch/arm64/kvm/pmu-emul.c | 14 ++++--
arch/arm64/kvm/sys_regs.c | 79 ++++++++++++++++++++-------------
3 files changed, 61 insertions(+), 35 deletions(-)
--
2.29.2
