diff options
| author | Fabiano Rosas <farosas@linux.ibm.com> | 2022-01-26 00:56:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-04-08 15:23:26 +0300 |
| commit | 5bedd66a59e55518be20ba1f7027b45364410a95 (patch) | |
| tree | f1b874e6877852ec60af2937f552a6681c3d319c /arch/powerpc | |
| parent | 72c179f650f635b6118ec266beec64bc6880acbf (diff) | |
| download | linux-5bedd66a59e55518be20ba1f7027b45364410a95.tar.xz | |
KVM: PPC: Fix vmx/vsx mixup in mmio emulation
[ Upstream commit b99234b918c6e36b9aa0a5b2981e86b6bd11f8e2 ]
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>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220125215655.1026224-3-farosas@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index b4e6f70b97b9..ee305455bd8d 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -1507,7 +1507,7 @@ 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) { @@ -1604,7 +1604,7 @@ 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; |