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authorPaolo Bonzini <pbonzini@redhat.com>2015-01-23 14:33:36 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2015-01-23 14:33:36 +0100
commit8fff5e374a2f6047d1bb52288af7da119bc75765 (patch)
tree723d105441d2bed7a0b6290557a7c89d3787b1fe /include/uapi
parentMerge tag 'kvm-arm-for-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git... (diff)
parentKVM: s390: remove redundant setting of interrupt type (diff)
downloadlinux-8fff5e374a2f6047d1bb52288af7da119bc75765.tar.xz
linux-8fff5e374a2f6047d1bb52288af7da119bc75765.zip
Merge tag 'kvm-s390-next-20150122' of git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into kvm-next
KVM: s390: fixes and features for kvm/next (3.20) 1. Generic - sparse warning (make function static) - optimize locking - bugfixes for interrupt injection - fix MVPG addressing modes 2. hrtimer/wakeup fun A recent change can cause KVM hangs if adjtime is used in the host. The hrtimer might wake up too early or too late. Too early is fatal as vcpu_block will see that the wakeup condition is not met and sleep again. This CPU might never wake up again. This series addresses this problem. adjclock slowing down the host clock will result in too late wakeups. This will require more work. In addition to that we also change the hrtimer from REALTIME to MONOTONIC to avoid similar problems with timedatectl set-time. 3. sigp rework We will move all "slow" sigps to QEMU (protected with a capability that can be enabled) to avoid several races between concurrent SIGP orders. 4. Optimize the shadow page table Provide an interface to announce the maximum guest size. The kernel will use that to make the pagetable 2,3,4 (or theoretically) 5 levels. 5. Provide an interface to set the guest TOD We now use two vm attributes instead of two oneregs, as oneregs are vcpu ioctl and we don't want to call them from other threads. 6. Protected key functions The real HMC allows to enable/disable protected key CPACF functions. Lets provide an implementation + an interface for QEMU to activate this the protected key instructions.
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/kvm.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index b4e6f1e70f03..805570650062 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -491,6 +491,11 @@ struct kvm_s390_emerg_info {
__u16 code;
};
+#define KVM_S390_STOP_FLAG_STORE_STATUS 0x01
+struct kvm_s390_stop_info {
+ __u32 flags;
+};
+
struct kvm_s390_mchk_info {
__u64 cr14;
__u64 mcic;
@@ -509,6 +514,7 @@ struct kvm_s390_irq {
struct kvm_s390_emerg_info emerg;
struct kvm_s390_extcall_info extcall;
struct kvm_s390_prefix_info prefix;
+ struct kvm_s390_stop_info stop;
struct kvm_s390_mchk_info mchk;
char reserved[64];
} u;
@@ -753,6 +759,7 @@ struct kvm_ppc_smmu_info {
#define KVM_CAP_PPC_FIXUP_HCALL 103
#define KVM_CAP_PPC_ENABLE_HCALL 104
#define KVM_CAP_CHECK_EXTENSION_VM 105
+#define KVM_CAP_S390_USER_SIGP 106
#ifdef KVM_CAP_IRQ_ROUTING