Re: [PATCH v2 0/5] target/arm: More EL2 trapping fixes
On 2019-12-06 14:13, Peter Maydell wrote: On Sun, 1 Dec 2019 at 12:20, Marc Zyngier wrote: Hi all, This series is a follow-up on [1], which tried to address the remaining missing HCR_EL2.TIDx traps. I've hopefully now adressed the comments that Peter and Edgar raised. I've also tried to tackle missing traps generated by HSTR_EL2, which got completely ignored so far. Note that this results in the use of a new TB bit, which I understand is a rare resource. I'd welcome comments on how to handle it differently if at all possible. Finally, and as a bonus non-feature, I've added support for the missing Jazelle registers, giving me the opportunity to allow trapping of JIDR to EL2 using HCR_EL2.TID0. Yay, Christmas! ;-) I'm now going back to kernel stuff. I swear! To save you from having to roll a v3, I've fixed up the handful of nits Richard and I found as I applied this series to target-arm.next. Ah, brilliant. Thanks a lot Peter. M. -- Jazz is not dead. It just smells funny... ___ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
Re: [PATCH v2 0/5] target/arm: More EL2 trapping fixes
On Sun, 1 Dec 2019 at 12:20, Marc Zyngier wrote: > > Hi all, > > This series is a follow-up on [1], which tried to address the > remaining missing HCR_EL2.TIDx traps. I've hopefully now adressed the > comments that Peter and Edgar raised. > > I've also tried to tackle missing traps generated by HSTR_EL2, which > got completely ignored so far. Note that this results in the use of a > new TB bit, which I understand is a rare resource. I'd welcome > comments on how to handle it differently if at all possible. > > Finally, and as a bonus non-feature, I've added support for the > missing Jazelle registers, giving me the opportunity to allow trapping > of JIDR to EL2 using HCR_EL2.TID0. Yay, Christmas! ;-) > > I'm now going back to kernel stuff. I swear! To save you from having to roll a v3, I've fixed up the handful of nits Richard and I found as I applied this series to target-arm.next. thanks -- PMM ___ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
[PATCH v2 0/5] target/arm: More EL2 trapping fixes
Hi all, This series is a follow-up on [1], which tried to address the remaining missing HCR_EL2.TIDx traps. I've hopefully now adressed the comments that Peter and Edgar raised. I've also tried to tackle missing traps generated by HSTR_EL2, which got completely ignored so far. Note that this results in the use of a new TB bit, which I understand is a rare resource. I'd welcome comments on how to handle it differently if at all possible. Finally, and as a bonus non-feature, I've added support for the missing Jazelle registers, giving me the opportunity to allow trapping of JIDR to EL2 using HCR_EL2.TID0. Yay, Christmas! ;-) I'm now going back to kernel stuff. I swear! [1] https://patchew.org/QEMU/20191128161718.24361-1-...@kernel.org/ Marc Zyngier (5): target/arm: Honor HCR_EL2.TID2 trapping requirements target/arm: Honor HCR_EL2.TID1 trapping requirements target/arm: Handle trapping to EL2 of AArch32 VMRS instructions target/arm: Handle AArch32 CP15 trapping via HSTR_EL2 target/arm: Add support for missing Jazelle system registers target/arm/cpu.h | 2 + target/arm/helper-a64.h| 2 + target/arm/helper.c| 100 ++--- target/arm/op_helper.c | 21 +++ target/arm/translate-vfp.inc.c | 18 +- target/arm/translate.c | 3 +- target/arm/translate.h | 2 + target/arm/vfp_helper.c| 29 ++ 8 files changed, 165 insertions(+), 12 deletions(-) -- 2.20.1 ___ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
