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authorPaolo Bonzini <pbonzini@redhat.com>2024-07-16 15:51:36 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2024-07-16 15:51:36 +0200
commit86014c1e20fa1b5d5c6968f37fdd2f1b6c94d519 (patch)
treeef455cd218aa2009e04dd5a73e7d55dfa8ac009e /arch/s390/kvm/kvm-s390.c
parentMerge tag 'kvm-x86-fixes-6.10-11' of https://github.com/kvm-x86/linux into HEAD (diff)
parentKVM: Add missing MODULE_DESCRIPTION() (diff)
downloadlinux-86014c1e20fa1b5d5c6968f37fdd2f1b6c94d519.tar.xz
linux-86014c1e20fa1b5d5c6968f37fdd2f1b6c94d519.zip
Merge tag 'kvm-x86-generic-6.11' of https://github.com/kvm-x86/linux into HEAD
KVM generic changes for 6.11 - Enable halt poll shrinking by default, as Intel found it to be a clear win. - Setup empty IRQ routing when creating a VM to avoid having to synchronize SRCU when creating a split IRQCHIP on x86. - Rework the sched_in/out() paths to replace kvm_arch_sched_in() with a flag that arch code can use for hooking both sched_in() and sched_out(). - Take the vCPU @id as an "unsigned long" instead of "u32" to avoid truncating a bogus value from userspace, e.g. to help userspace detect bugs. - Mark a vCPU as preempted if and only if it's scheduled out while in the KVM_RUN loop, e.g. to avoid marking it preempted and thus writing guest memory when retrieving guest state during live migration blackout. - A few minor cleanups
Diffstat (limited to 'arch/s390/kvm/kvm-s390.c')
-rw-r--r--arch/s390/kvm/kvm-s390.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 4a74effe6870..a68ed36adc9a 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2997,14 +2997,9 @@ int kvm_arch_vm_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg)
break;
}
case KVM_CREATE_IRQCHIP: {
- struct kvm_irq_routing_entry routing;
-
r = -EINVAL;
- if (kvm->arch.use_irqchip) {
- /* Set up dummy routing. */
- memset(&routing, 0, sizeof(routing));
- r = kvm_set_irq_routing(kvm, &routing, 0, 0);
- }
+ if (kvm->arch.use_irqchip)
+ r = 0;
break;
}
case KVM_SET_DEVICE_ATTR: {
@@ -5032,7 +5027,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu)
if (vcpu->kvm->arch.pv.dumping)
return -EINVAL;
- if (kvm_run->immediate_exit)
+ if (!vcpu->wants_to_run)
return -EINTR;
if (kvm_run->kvm_valid_regs & ~KVM_SYNC_S390_VALID_FIELDS ||