kevin/linux
1
Fork 0
Code

KVM: PPC: Book3S HV nestedv2: Ensure LPCR_MER bit is passed to the L0

Browse Source 
LPCR_MER is conditionally set during entry to a guest if there is a
pending external interrupt. In the nestedv2 case, this change is not
being communicated to the L0, which means it is not being set in the L2.
Ensure the updated LPCR value is passed to the L0.

Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231201132618.555031-6-vaibhav@linux.ibm.com
This commit is contained in:
Jordan Niethe 2023-12-01 18:56:10 +05:30 committed by Michael Ellerman
parent e678748a8d
commit ec0f6639fa
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
arch/powerpc/kvm/book3s_hv.c
View File

@ -4084,6 +4084,8 @@ static int kvmhv_vcpu_entry_nestedv2(struct kvm_vcpu *vcpu, u64 time_limit,
if (rc < 0)
return -EINVAL;
kvmppc_gse_put_u64(io->vcpu_run_input, KVMPPC_GSID_LPCR, lpcr);
accumulate_time(vcpu, &vcpu->arch.in_guest);
rc = plpar_guest_run_vcpu(0, vcpu->kvm->arch.lpid, vcpu->vcpu_id,
&trap, &i);