diff options
| author | Sean Christopherson <seanjc@google.com> | 2022-02-25 18:22:46 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-03-01 08:58:25 -0500 |
| commit | cc65c3a110db689abe06c41296cf4da8f0a69b35 (patch) | |
| tree | c6be190d2917d1d2af7ae44cb54e3bad4a8f48f1 /arch/s390/kvm/kvm-s390.c | |
| parent | 527d5cd7eece9f9f5e9c5b6692cd6814a46df6fe (diff) | |
KVM: s390: Replace KVM_REQ_MMU_RELOAD usage with arch specific request
Add an arch request, KVM_REQ_REFRESH_GUEST_PREFIX, to deal with guest
prefix changes instead of piggybacking KVM_REQ_MMU_RELOAD. This will
allow for the removal of the generic KVM_REQ_MMU_RELOAD, which isn't
actually used by generic KVM.
No functional change intended.
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220225182248.3812651-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
| -rw-r--r-- | arch/s390/kvm/kvm-s390.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index e056ad86ccd2..5b2b3cbf0d55 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -3481,7 +3481,7 @@ static void kvm_gmap_notifier(struct gmap *gmap, unsigned long start, if (prefix <= end && start <= prefix + 2*PAGE_SIZE - 1) { VCPU_EVENT(vcpu, 2, "gmap notifier for %lx-%lx", start, end); - kvm_s390_sync_request(KVM_REQ_MMU_RELOAD, vcpu); + kvm_s390_sync_request(KVM_REQ_REFRESH_GUEST_PREFIX, vcpu); } } } @@ -3883,19 +3883,19 @@ retry: if (!kvm_request_pending(vcpu)) return 0; /* - * We use MMU_RELOAD just to re-arm the ipte notifier for the + * If the guest prefix changed, re-arm the ipte notifier for the * guest prefix page. gmap_mprotect_notify will wait on the ptl lock. * This ensures that the ipte instruction for this request has * already finished. We might race against a second unmapper that * wants to set the blocking bit. Lets just retry the request loop. */ - if (kvm_check_request(KVM_REQ_MMU_RELOAD, vcpu)) { + if (kvm_check_request(KVM_REQ_REFRESH_GUEST_PREFIX, vcpu)) { int rc; rc = gmap_mprotect_notify(vcpu->arch.gmap, kvm_s390_get_prefix(vcpu), PAGE_SIZE * 2, PROT_WRITE); if (rc) { - kvm_make_request(KVM_REQ_MMU_RELOAD, vcpu); + kvm_make_request(KVM_REQ_REFRESH_GUEST_PREFIX, vcpu); return rc; } goto retry; |