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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-10 13:16:35 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-10 13:16:35 -0800 |
commit | 15303ba5d1cd9b28d03a980456c0978c0ea3b208 (patch) | |
tree | b9200d5b7474661cf36468038529a5269ee83238 /arch/s390/kvm/sigp.c | |
parent | 9a61df9e5f7471fe5be3e02bd0bed726b2761a54 (diff) | |
parent | 1ab03c072feb579c9fd116de25be2b211e6bff6a (diff) | |
download | talos-op-linux-15303ba5d1cd9b28d03a980456c0978c0ea3b208.tar.gz talos-op-linux-15303ba5d1cd9b28d03a980456c0978c0ea3b208.zip |
Merge tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Radim Krčmář:
"ARM:
- icache invalidation optimizations, improving VM startup time
- support for forwarded level-triggered interrupts, improving
performance for timers and passthrough platform devices
- a small fix for power-management notifiers, and some cosmetic
changes
PPC:
- add MMIO emulation for vector loads and stores
- allow HPT guests to run on a radix host on POWER9 v2.2 CPUs without
requiring the complex thread synchronization of older CPU versions
- improve the handling of escalation interrupts with the XIVE
interrupt controller
- support decrement register migration
- various cleanups and bugfixes.
s390:
- Cornelia Huck passed maintainership to Janosch Frank
- exitless interrupts for emulated devices
- cleanup of cpuflag handling
- kvm_stat counter improvements
- VSIE improvements
- mm cleanup
x86:
- hypervisor part of SEV
- UMIP, RDPID, and MSR_SMI_COUNT emulation
- paravirtualized TLB shootdown using the new KVM_VCPU_PREEMPTED bit
- allow guests to see TOPOEXT, GFNI, VAES, VPCLMULQDQ, and more
AVX512 features
- show vcpu id in its anonymous inode name
- many fixes and cleanups
- per-VCPU MSR bitmaps (already merged through x86/pti branch)
- stable KVM clock when nesting on Hyper-V (merged through
x86/hyperv)"
* tag 'kvm-4.16-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (197 commits)
KVM: PPC: Book3S: Add MMIO emulation for VMX instructions
KVM: PPC: Book3S HV: Branch inside feature section
KVM: PPC: Book3S HV: Make HPT resizing work on POWER9
KVM: PPC: Book3S HV: Fix handling of secondary HPTEG in HPT resizing code
KVM: PPC: Book3S PR: Fix broken select due to misspelling
KVM: x86: don't forget vcpu_put() in kvm_arch_vcpu_ioctl_set_sregs()
KVM: PPC: Book3S PR: Fix svcpu copying with preemption enabled
KVM: PPC: Book3S HV: Drop locks before reading guest memory
kvm: x86: remove efer_reload entry in kvm_vcpu_stat
KVM: x86: AMD Processor Topology Information
x86/kvm/vmx: do not use vm-exit instruction length for fast MMIO when running nested
kvm: embed vcpu id to dentry of vcpu anon inode
kvm: Map PFN-type memory regions as writable (if possible)
x86/kvm: Make it compile on 32bit and with HYPYERVISOR_GUEST=n
KVM: arm/arm64: Fixup userspace irqchip static key optimization
KVM: arm/arm64: Fix userspace_irqchip_in_use counting
KVM: arm/arm64: Fix incorrect timer_is_pending logic
MAINTAINERS: update KVM/s390 maintainers
MAINTAINERS: add Halil as additional vfio-ccw maintainer
MAINTAINERS: add David as a reviewer for KVM/s390
...
Diffstat (limited to 'arch/s390/kvm/sigp.c')
-rw-r--r-- | arch/s390/kvm/sigp.c | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/arch/s390/kvm/sigp.c b/arch/s390/kvm/sigp.c index c1f5cde2c878..683036c1c92a 100644 --- a/arch/s390/kvm/sigp.c +++ b/arch/s390/kvm/sigp.c @@ -20,22 +20,18 @@ static int __sigp_sense(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu, u64 *reg) { - struct kvm_s390_local_interrupt *li; - int cpuflags; + const bool stopped = kvm_s390_test_cpuflags(dst_vcpu, CPUSTAT_STOPPED); int rc; int ext_call_pending; - li = &dst_vcpu->arch.local_int; - - cpuflags = atomic_read(li->cpuflags); ext_call_pending = kvm_s390_ext_call_pending(dst_vcpu); - if (!(cpuflags & CPUSTAT_STOPPED) && !ext_call_pending) + if (!stopped && !ext_call_pending) rc = SIGP_CC_ORDER_CODE_ACCEPTED; else { *reg &= 0xffffffff00000000UL; if (ext_call_pending) *reg |= SIGP_STATUS_EXT_CALL_PENDING; - if (cpuflags & CPUSTAT_STOPPED) + if (stopped) *reg |= SIGP_STATUS_STOPPED; rc = SIGP_CC_STATUS_STORED; } @@ -208,11 +204,9 @@ static int __sigp_store_status_at_addr(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu, u32 addr, u64 *reg) { - int flags; int rc; - flags = atomic_read(dst_vcpu->arch.local_int.cpuflags); - if (!(flags & CPUSTAT_STOPPED)) { + if (!kvm_s390_test_cpuflags(dst_vcpu, CPUSTAT_STOPPED)) { *reg &= 0xffffffff00000000UL; *reg |= SIGP_STATUS_INCORRECT_STATE; return SIGP_CC_STATUS_STORED; @@ -231,7 +225,6 @@ static int __sigp_store_status_at_addr(struct kvm_vcpu *vcpu, static int __sigp_sense_running(struct kvm_vcpu *vcpu, struct kvm_vcpu *dst_vcpu, u64 *reg) { - struct kvm_s390_local_interrupt *li; int rc; if (!test_kvm_facility(vcpu->kvm, 9)) { @@ -240,8 +233,7 @@ static int __sigp_sense_running(struct kvm_vcpu *vcpu, return SIGP_CC_STATUS_STORED; } - li = &dst_vcpu->arch.local_int; - if (atomic_read(li->cpuflags) & CPUSTAT_RUNNING) { + if (kvm_s390_test_cpuflags(dst_vcpu, CPUSTAT_RUNNING)) { /* running */ rc = SIGP_CC_ORDER_CODE_ACCEPTED; } else { |