From 53df84f8de312586e1c05a8f496f614ca814eeff Mon Sep 17 00:00:00 2001 From: Guenther Hutzl Date: Wed, 18 Feb 2015 11:13:03 +0100 Subject: KVM: s390: Enable guest EDAT2 support 1. Enable EDAT2 in the list of KVM facilities 2. Handle 2G frames in pfmf instruction If we support EDAT2, we may enable handling of 2G frames if not in 24 bit mode. 3. Enable EDAT2 in sie_block If the EDAT2 facility is available we enable GED2 mode control in the sie_block. Reviewed-by: David Hildenbrand Reviewed-by: Cornelia Huck Reviewed-by: Christian Borntraeger Signed-off-by: Guenther Hutzl Signed-off-by: Christian Borntraeger --- arch/s390/kvm/kvm-s390.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/s390/kvm/kvm-s390.c') diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index 2da36c432aea..142d9b40528d 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -110,7 +110,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = { /* upper facilities limit for kvm */ unsigned long kvm_s390_fac_list_mask[] = { 0xffe6fffbfcfdfc40UL, - 0x005c800000000000UL, + 0x005e800000000000UL, }; unsigned long kvm_s390_fac_list_mask_size(void) @@ -1313,7 +1313,9 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu) CPUSTAT_SM | CPUSTAT_STOPPED); - if (test_kvm_facility(vcpu->kvm, 8)) + if (test_kvm_facility(vcpu->kvm, 78)) + atomic_set_mask(CPUSTAT_GED2, &vcpu->arch.sie_block->cpuflags); + else if (test_kvm_facility(vcpu->kvm, 8)) atomic_set_mask(CPUSTAT_GED, &vcpu->arch.sie_block->cpuflags); kvm_s390_vcpu_setup_model(vcpu); -- cgit v1.2.3