From: Chao Du <duchao@eswincomputing.com>
To: kvm@vger.kernel.org, kvm-riscv@lists.infradead.org,
anup@brainfault.org, atishp@atishpatra.org, pbonzini@redhat.com,
shuah@kernel.org, dbarboza@ventanamicro.com,
paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu, haibo1.xu@intel.com, duchao713@qq.com
Subject: [PATCH v4 2/3] RISC-V: KVM: Handle breakpoint exits for VCPU
Date: Tue, 2 Apr 2024 06:26:27 +0000 [thread overview]
Message-ID: <20240402062628.5425-3-duchao@eswincomputing.com> (raw)
In-Reply-To: <20240402062628.5425-1-duchao@eswincomputing.com>
Exit to userspace for breakpoint traps. Set the exit_reason as
KVM_EXIT_DEBUG before exit.
Signed-off-by: Chao Du <duchao@eswincomputing.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
---
arch/riscv/kvm/vcpu_exit.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/riscv/kvm/vcpu_exit.c b/arch/riscv/kvm/vcpu_exit.c
index 2415722c01b8..5761f95abb60 100644
--- a/arch/riscv/kvm/vcpu_exit.c
+++ b/arch/riscv/kvm/vcpu_exit.c
@@ -204,6 +204,10 @@ int kvm_riscv_vcpu_exit(struct kvm_vcpu *vcpu, struct kvm_run *run,
if (vcpu->arch.guest_context.hstatus & HSTATUS_SPV)
ret = kvm_riscv_vcpu_sbi_ecall(vcpu, run);
break;
+ case EXC_BREAKPOINT:
+ run->exit_reason = KVM_EXIT_DEBUG;
+ ret = 0;
+ break;
default:
break;
}
--
2.17.1
next prev parent reply other threads:[~2024-04-02 6:31 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-02 6:26 [PATCH v4 0/3] RISC-V: KVM: Guest Debug Support - Software Breakpoint Part Chao Du
2024-04-02 6:26 ` [PATCH v4 1/3] RISC-V: KVM: Implement kvm_arch_vcpu_ioctl_set_guest_debug() Chao Du
2024-04-02 6:26 ` Chao Du [this message]
2024-04-02 6:26 ` [PATCH v4 3/3] RISC-V: KVM: selftests: Add ebreak test support Chao Du
2024-04-02 15:36 ` Andrew Jones
2024-04-08 11:51 ` [PATCH v4 0/3] RISC-V: KVM: Guest Debug Support - Software Breakpoint Part Anup Patel
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