From: Fabiano Rosas <farosas@linux.ibm.com> To: kvm-ppc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com, aik@ozlabs.ru Subject: [PATCH v5 2/5] KVM: PPC: Fix vmx/vsx mixup in mmio emulation Date: Tue, 25 Jan 2022 18:56:52 -0300 [thread overview] Message-ID: <20220125215655.1026224-3-farosas@linux.ibm.com> (raw) In-Reply-To: <20220125215655.1026224-1-farosas@linux.ibm.com> The MMIO emulation code for vector instructions is duplicated between VSX and VMX. When emulating VMX we should check the VMX copy size instead of the VSX one. Fixes: acc9eb9305fe ("KVM: PPC: Reimplement LOAD_VMX/STORE_VMX instruction ...") Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kvm/powerpc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 50414fb2a5ea..c2bd29e90314 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -1499,7 +1499,7 @@ int kvmppc_handle_vmx_load(struct kvm_vcpu *vcpu, { enum emulation_result emulated = EMULATE_DONE; - if (vcpu->arch.mmio_vsx_copy_nums > 2) + if (vcpu->arch.mmio_vmx_copy_nums > 2) return EMULATE_FAIL; while (vcpu->arch.mmio_vmx_copy_nums) { @@ -1596,7 +1596,7 @@ int kvmppc_handle_vmx_store(struct kvm_vcpu *vcpu, unsigned int index = rs & KVM_MMIO_REG_MASK; enum emulation_result emulated = EMULATE_DONE; - if (vcpu->arch.mmio_vsx_copy_nums > 2) + if (vcpu->arch.mmio_vmx_copy_nums > 2) return EMULATE_FAIL; vcpu->arch.io_gpr = rs; -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Fabiano Rosas <farosas@linux.ibm.com> To: kvm-ppc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org, npiggin@gmail.com, aik@ozlabs.ru Subject: [PATCH v5 2/5] KVM: PPC: Fix vmx/vsx mixup in mmio emulation Date: Tue, 25 Jan 2022 21:56:52 +0000 [thread overview] Message-ID: <20220125215655.1026224-3-farosas@linux.ibm.com> (raw) In-Reply-To: <20220125215655.1026224-1-farosas@linux.ibm.com> The MMIO emulation code for vector instructions is duplicated between VSX and VMX. When emulating VMX we should check the VMX copy size instead of the VSX one. Fixes: acc9eb9305fe ("KVM: PPC: Reimplement LOAD_VMX/STORE_VMX instruction ...") Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com> Reviewed-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kvm/powerpc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 50414fb2a5ea..c2bd29e90314 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -1499,7 +1499,7 @@ int kvmppc_handle_vmx_load(struct kvm_vcpu *vcpu, { enum emulation_result emulated = EMULATE_DONE; - if (vcpu->arch.mmio_vsx_copy_nums > 2) + if (vcpu->arch.mmio_vmx_copy_nums > 2) return EMULATE_FAIL; while (vcpu->arch.mmio_vmx_copy_nums) { @@ -1596,7 +1596,7 @@ int kvmppc_handle_vmx_store(struct kvm_vcpu *vcpu, unsigned int index = rs & KVM_MMIO_REG_MASK; enum emulation_result emulated = EMULATE_DONE; - if (vcpu->arch.mmio_vsx_copy_nums > 2) + if (vcpu->arch.mmio_vmx_copy_nums > 2) return EMULATE_FAIL; vcpu->arch.io_gpr = rs; -- 2.34.1
next prev parent reply other threads:[~2022-01-25 21:59 UTC|newest] Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-01-25 21:56 [PATCH v5 0/5] KVM: PPC: MMIO fixes Fabiano Rosas 2022-01-25 21:56 ` Fabiano Rosas 2022-01-25 21:56 ` [PATCH v5 1/5] KVM: PPC: Book3S HV: Stop returning internal values to userspace Fabiano Rosas 2022-01-25 21:56 ` Fabiano Rosas 2022-01-25 21:56 ` Fabiano Rosas [this message] 2022-01-25 21:56 ` [PATCH v5 2/5] KVM: PPC: Fix vmx/vsx mixup in mmio emulation Fabiano Rosas 2022-01-25 21:56 ` [PATCH v5 3/5] KVM: PPC: mmio: Reject instructions that access more than mmio.data size Fabiano Rosas 2022-01-25 21:56 ` Fabiano Rosas 2022-01-25 21:56 ` [PATCH v5 4/5] KVM: PPC: mmio: Return to guest after emulation failure Fabiano Rosas 2022-01-25 21:56 ` Fabiano Rosas 2022-01-25 21:56 ` [PATCH v5 5/5] KVM: PPC: Book3s: mmio: Deliver DSI " Fabiano Rosas 2022-01-25 21:56 ` Fabiano Rosas 2022-01-27 7:34 ` Nicholas Piggin 2022-01-27 7:34 ` Nicholas Piggin 2022-02-16 13:04 ` [PATCH v5 0/5] KVM: PPC: MMIO fixes Michael Ellerman 2022-02-16 13:04 ` Michael Ellerman
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