On Thu, Dec 21, 2023 at 3:21 PM Chao Du <duchao@xxxxxxxxxxxxxxxxxx> wrote: > > This series implements KVM Guest Debug on RISC-V. Currently, we can > debug RISC-V KVM guest from the host side, with software breakpoints. > > A brief test was done on QEMU RISC-V hypervisor emulator. > > A TODO list which will be added later: > 1. HW breakpoints support > 2. Test cases Himanshu has already done the complete HW breakpoint implementation in OpenSBI, Linux RISC-V, and KVM RISC-V. This is based on the upcoming SBI debug trigger extension draft proposal. (Refer, https://lists.riscv.org/g/tech-debug/message/1261) There are also RISE projects to track these efforts: https://wiki.riseproject.dev/pages/viewpage.action?pageId=394541 https://wiki.riseproject.dev/pages/viewpage.action?pageId=394545 Currently, we are in the process of upstreaming the OpenSBI support for SBI debug trigger extension. The Linux RISC-V and KVM RISC-V patches require SBI debug trigger extension and Sdtrig extension to be frozen which will happen next year 2024. Regards, Anup > > This series is based on Linux 6.7-rc6 and is also available at: > https://github.com/Du-Chao/linux/tree/riscv_gd_sw > > The matched QEMU is available at: > https://github.com/Du-Chao/qemu/tree/riscv_gd_sw > > Chao Du (3): > RISC-V: KVM: Enable the KVM_CAP_SET_GUEST_DEBUG capability > RISC-V: KVM: Implement kvm_arch_vcpu_ioctl_set_guest_debug() > RISC-V: KVM: Handle breakpoint exits for VCPU > > arch/riscv/include/uapi/asm/kvm.h | 1 + > arch/riscv/kvm/vcpu.c | 15 +++++++++++++-- > arch/riscv/kvm/vcpu_exit.c | 4 ++++ > arch/riscv/kvm/vm.c | 1 + > 4 files changed, 19 insertions(+), 2 deletions(-) > > -- > 2.17.1 > > > -- > kvm-riscv mailing list > kvm-riscv@xxxxxxxxxxxxxxxxxxx > http://lists.infradead.org/mailman/listinfo/kvm-riscv
