Re: [PATCH v2 5/7] KVM: PPC: mmio: Queue interrupt at kvmppc_emulate_mmio
From: Alexey Kardashevskiy <hidden>
Date: 2022-01-07 00:25:17
On 07/01/2022 07:03, Fabiano Rosas wrote:
quoted hunk ↗ jump to hunk
If MMIO emulation fails, we queue a Program interrupt to the guest. Move that line up into kvmppc_emulate_mmio, which is where we set RESUME_GUEST/HOST. No functional change, just separation of responsibilities. Signed-off-by: Fabiano Rosas <redacted> --- arch/powerpc/kvm/emulate_loadstore.c | 4 +--- arch/powerpc/kvm/powerpc.c | 2 +- 2 files changed, 2 insertions(+), 4 deletions(-)diff --git a/arch/powerpc/kvm/emulate_loadstore.c b/arch/powerpc/kvm/emulate_loadstore.c index 48272a9b9c30..ef50e8cfd988 100644 --- a/arch/powerpc/kvm/emulate_loadstore.c +++ b/arch/powerpc/kvm/emulate_loadstore.c@@ -355,10 +355,8 @@ int kvmppc_emulate_loadstore(struct kvm_vcpu *vcpu) } } - if (emulated == EMULATE_FAIL) { + if (emulated == EMULATE_FAIL) advance = 0;
You can now drop @advance by moving the "if" few lines down.
quoted hunk ↗ jump to hunk
- kvmppc_core_queue_program(vcpu, 0); - } trace_kvm_ppc_instr(inst, kvmppc_get_pc(vcpu), emulated);diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 3fc8057db4b4..a2e78229d645 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c@@ -307,7 +307,7 @@ int kvmppc_emulate_mmio(struct kvm_vcpu *vcpu) u32 last_inst; kvmppc_get_last_inst(vcpu, INST_GENERIC, &last_inst); - /* XXX Deliver Program interrupt to guest. */ + kvmppc_core_queue_program(vcpu, 0); pr_info("%s: emulation failed (%08x)\n", __func__, last_inst); r = RESUME_HOST; break;
-- Alexey