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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 15:47:52 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-03-26 15:47:52 -0700 |
commit | d3f12d36f148f101c568bdbce795e41cd9ceadf3 (patch) | |
tree | 4d58ff7605a530fb052c95378d507e2350755825 /arch/s390/kvm/priv.c | |
parent | 39b566eedbe9e35d38502cc5e62ef7abf1aff9c9 (diff) | |
parent | 16175a796d061833aacfbd9672235f2d2725df65 (diff) |
Merge branch 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm
* 'kvm-updates/2.6.30' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (113 commits)
KVM: VMX: Don't allow uninhibited access to EFER on i386
KVM: Correct deassign device ioctl to IOW
KVM: ppc: e500: Fix the bug that KVM is unstable in SMP
KVM: ppc: e500: Fix the bug that mas0 update to wrong value when read TLB entry
KVM: Fix missing smp tlb flush in invlpg
KVM: Get support IRQ routing entry counts
KVM: fix sparse warnings: Should it be static?
KVM: fix sparse warnings: context imbalance
KVM: is_long_mode() should check for EFER.LMA
KVM: VMX: Update necessary state when guest enters long mode
KVM: ia64: Fix the build errors due to lack of macros related to MSI.
ia64: Move the macro definitions related to MSI to one header file.
KVM: fix kvm_vm_ioctl_deassign_device
KVM: define KVM_CAP_DEVICE_DEASSIGNMENT
KVM: ppc: Add emulation of E500 register mmucsr0
KVM: Report IRQ injection status for MSI delivered interrupts
KVM: MMU: Fix another largepage memory leak
KVM: SVM: set accessed bit for VMCB segment selectors
KVM: Report IRQ injection status to userspace.
KVM: MMU: remove assertion in kvm_mmu_alloc_page
...
Diffstat (limited to 'arch/s390/kvm/priv.c')
-rw-r--r-- | arch/s390/kvm/priv.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 3605df45dd4..4b88834b8dd 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -304,12 +304,24 @@ static intercept_handler_t priv_handlers[256] = { [0xb1] = handle_stfl, }; -int kvm_s390_handle_priv(struct kvm_vcpu *vcpu) +int kvm_s390_handle_b2(struct kvm_vcpu *vcpu) { intercept_handler_t handler; + /* + * a lot of B2 instructions are priviledged. We first check for + * the priviledges ones, that we can handle in the kernel. If the + * kernel can handle this instruction, we check for the problem + * state bit and (a) handle the instruction or (b) send a code 2 + * program check. + * Anything else goes to userspace.*/ handler = priv_handlers[vcpu->arch.sie_block->ipa & 0x00ff]; - if (handler) - return handler(vcpu); + if (handler) { + if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE) + return kvm_s390_inject_program_int(vcpu, + PGM_PRIVILEGED_OPERATION); + else + return handler(vcpu); + } return -ENOTSUPP; } |