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Re: [RFC PATCH 0/4] target/riscv/kvm: QEMU support for KVM Guest Debug o
From: |
Chao Du |
Subject: |
Re: [RFC PATCH 0/4] target/riscv/kvm: QEMU support for KVM Guest Debug on RISC-V |
Date: |
Tue, 9 Apr 2024 17:43:15 +0800 (GMT+08:00) |
Hi Daniel and all,
The KVM patches have been reviewd and are in the queue.
https://lore.kernel.org/all/20240402062628.5425-1-duchao@eswincomputing.com/
Could you please review in the QEMU side ?
Then I will rebase this series with your comments.
Some Notes:
1. As the first stage, only the software breakpoints is implemented.
2. A 'corner case' in which the debug exception is not inserted by the
debugger, need to be re-injected to the guest. This is not handled yet
in this series.
Thanks,
Chao
On 2023-12-22 22:16, Daniel Henrique Barboza <dbarboza@ventanamicro.com> wrote:
>
> Hi,
>
> It seems that we still need the kernel KVM side to be sorted out first [1],
> so I believe we should wait a bit until we can review this RFC. Otherwise we
> might risk reviewing something that has to be changed later.
>
>
> [1]
> https://lore.kernel.org/kvm/20231221095002.7404-1-duchao@eswincomputing.com/
>
>
> Thanks,
>
> Daniel
>
> On 12/21/23 06:49, Chao Du wrote:
> > This series implements QEMU 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
> >
> > This series is based on QEMU 8.2.0-rc4 and is also available at:
> > https://github.com/Du-Chao/qemu/tree/riscv_gd_sw
> >
> > This is dependent on KVM side changes:
> > https://github.com/Du-Chao/linux/tree/riscv_gd_sw
> >
> > Chao Du (4):
> > target/riscv/kvm: add software breakpoints support
> > target/riscv/kvm: implement kvm_arch_update_guest_debug()
> > target/riscv/kvm: handle the exit with debug reason
> > linux-headers: enable KVM GUEST DEBUG for RISC-V
> >
> > accel/kvm/kvm-all.c | 8 +--
> > include/sysemu/kvm.h | 6 +-
> > linux-headers/asm-riscv/kvm.h | 1 +
> > target/arm/kvm64.c | 6 +-
> > target/i386/kvm/kvm.c | 6 +-
> > target/mips/kvm.c | 6 +-
> > target/ppc/kvm.c | 6 +-
> > target/riscv/kvm/kvm-cpu.c | 101 ++++++++++++++++++++++++++++++++++
> > target/s390x/kvm/kvm.c | 6 +-
> > 9 files changed, 130 insertions(+), 16 deletions(-)
> >
> > --
> > 2.17.1
> >
- Re: [RFC PATCH 0/4] target/riscv/kvm: QEMU support for KVM Guest Debug on RISC-V,
Chao Du <=