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2009-03-24KVM: s390: Fix problem state check for b2 interceptsChristian Borntraeger
The kernel handles some priviledged instruction exits. While I was unable to trigger such an exit from guest userspace, the code should check for supervisor state before emulating a priviledged instruction. I also renamed kvm_s390_handle_priv to kvm_s390_handle_b2. After all there are non priviledged b2 instructions like stck (store clock). Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: s390: Fix printk on SIGP set archChristian Borntraeger
KVM on s390 does not support the ESA/390 architecture. We refuse to change the architecture mode and print a warning. This patch removes the printk for several reasons: o A malicious guest can flood host dmesg o The old message had no newline o there is no connection between the message and the failing guest This patch simply removes the printk. We already set the condition code to 3 - the guest knows that something went wrong. Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ia64: Implement some pal calls needed for windows 2008Xiantao Zhang
For windows 2008, it needs more pal calls to implement for booting. In addition, also changes the name of set_{sal, pal}_call_result to get_{sal,pal}_call_result for readability. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ia64: Add the support for translating PAL Call's pointer argsXiantao Zhang
Add the support to translate PAL Call's pointer args. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ia64: vTLB change for enabling windows 2008 bootXiantao Zhang
Simply the logic of hash vTLB, and export kvm_gpa_to_mpa. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Avoid using CONFIG_ in userspace visible headersAvi Kivity
Kconfig symbols are not available in userspace, and are not stripped by headers-install. Avoid their use by adding #defines in <asm/kvm.h> to suit each architecture. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Userspace controlled irq routingAvi Kivity
Currently KVM has a static routing from GSI numbers to interrupts (namely, 0-15 are mapped 1:1 to both PIC and IOAPIC, and 16:23 are mapped 1:1 to the IOAPIC). This is insufficient for several reasons: - HPET requires non 1:1 mapping for the timer interrupt - MSIs need a new method to assign interrupt numbers and dispatch them - ACPI APIC mode needs to be able to reassign the PCI LINK interrupts to the ioapics This patch implements an interrupt routing table (as a linked list, but this can be easily changed) and a userspace interface to replace the table. The routing table is initialized according to the current hardwired mapping. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: x86: Fix typos and whitespace errorsAmit Shah
Some typos, comments, whitespace errors corrected in the cpuid code Signed-off-by: Amit Shah <amit.shah@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: Move to new TLB invalidate interfaceLiu Yu
Commit 2a4aca1144394653269720ffbb5a325a77abd5fa removed old method _tlbia(). Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: Fix e500 warnings and some spelling problemsLiu Yu
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24powerpc/fsl-booke: declare tlbcam_index for use in cLiu Yu
So, KVM needs to read tlbcam_index to know exactly which TLB1 entry is unused by host. Signed-off-by: Liu Yu <yu.liu@freescale.com> Acked-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: MMU: Only enable cr4_pge role in shadow modeAvi Kivity
Two dimensional paging is only confused by it. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: MMU: Rename "metaphysical" attribute to "direct"Avi Kivity
This actually describes what is going on, rather than alerting the reader that something strange is going on. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: MMU: drop zeroing on mmu_memory_cache_allocMarcelo Tosatti
Zeroing on mmu_memory_cache_alloc is unnecessary since: - Smaller areas are pre-allocated with kmem_cache_zalloc. - Page pointed by ->spt is overwritten with prefetch_page and entries in page pointed by ->gfns are initialized before reading. [avi: zeroing pages is unnecessary] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: SVM: Fix typo in has_svm()Joe Perches
Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ia64: expose registers in struct kvm_regsJes Sorensen
Provide register layout for struct kvm_regs exposed to userland. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Reset PIT irq injection logic when the PIT IRQ is unmaskedAvi Kivity
While the PIT is masked the guest cannot ack the irq, so the reinject logic will never allow the interrupt to be injected. Fix by resetting the reinjection counters on unmask. Unbreaks Xen. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Interrupt mask notifiers for ioapicAvi Kivity
Allow clients to request notifications when the guest masks or unmasks a particular irq line. This complements irq ack notifications, as the guest will not ack an irq line that is masked. Currently implemented for the ioapic only. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Add CONFIG_HAVE_KVM_IRQCHIPAvi Kivity
Two KVM archs support irqchips and two don't. Add a Kconfig item to make selecting between the two models easier. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: MMU: Optimize page unshadowingAvi Kivity
Using kvm_mmu_lookup_page() will result in multiple scans of the hash chains; use hlist_for_each_entry_safe() to achieve a single scan instead. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: SVM: Add microcode patch level dummyAlexander Graf
VMware ESX checks if the microcode level is correct when using a barcelona CPU, in order to see if it actually can use SVM. Let's tell it we're on the safe side... Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Add support to disable MSI for assigned deviceSheng Yang
MSI is always enabled by default for msi2intx=1. But if msi2intx=0, we have to disable MSI if guest require to do so. The patch also discard unnecessary msi2intx judgment if guest want to update MSI state. Notice KVM_DEV_IRQ_ASSIGN_MSI_ACTION is a mask which should cover all MSI related operations, though we only got one for now. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Remove duplicated prototype of kvm_arch_destroy_vmSheng Yang
Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: remove debug support broken by KVM debug rewriteHollis Blanchard
After the rewrite of KVM's debug support, this code doesn't even build any more. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Properly lock PIT creationAvi Kivity
Otherwise, two threads can create a PIT in parallel and cause a memory leak. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: x86 emulator: implement 'ret far' instruction (opcode 0xcb)Avi Kivity
Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: VMX: When emulating on invalid vmx state, don't return to userspace ↵Avi Kivity
unnecessarily If we aren't doing mmio there's no need to exit to userspace (which will just be confused). Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: x86 emulator: Make emulate_pop() a little more genericAvi Kivity
Allow emulate_pop() to read into arbitrary memory rather than just the source operand. Needed for complicated instructions like far returns. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: VMX: Prevent exit handler from running if emulating due to invalid stateAvi Kivity
If we've just emulated an instruction, we won't have any valid exit reason and associated information. Fix by moving the clearing of the emulation_required flag to the exit handler. This way the exit handler can notice that we've been emulating and abort early. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: VMX: don't clobber segment AR if emulating invalid stateAvi Kivity
The ususable bit is important for determining state validity; don't clobber it. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: VMX: Fix guest state validity checksAvi Kivity
The vmx guest state validity checks are full of bugs. Make them conform to the manual. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: Add extra E500 exceptionsHollis Blanchard
e500 has additional interrupt vectors (and corresponding IVORs) for SPE and performance monitoring interrupts. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: distinguish between interrupts and prioritiesHollis Blanchard
Although BOOKE_MAX_INTERRUPT has the right value, the meaning is not match. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: Add kvmppc_mmu_dtlb/itlb_miss for bookeHollis Blanchard
When itlb or dtlb miss happens, E500 needs to update some mmu registers. So that the auto-load mechanism can work on E500 when write a tlb entry. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: E500 core-specific codeHollis Blanchard
Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: ifdef iccci with CONFIG_44xHollis Blanchard
E500 deosn't support this instruction. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: No need to include core-header for KVM in asm-offsets.c currentlyHollis Blanchard
Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: Add dbsr in kvm_vcpu_archHollis Blanchard
Kernel for E500 need clear dbsr when startup. So add dbsr register in kvm_vcpu_arch for BOOKE. Signed-off-by: Liu Yu <yu.liu@freescale.com> Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: split out common Book E instruction emulationHollis Blanchard
The Book E code will be shared with e500. I've left PID in kvmppc_core_emulate_op() just so that we don't need to move kvmppc_set_pid() right now. Once we have the e500 implementation, we can probably share that too. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: use macros instead of hardcoded literals for instruction decodingHollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: remove last 44x-specific bits from booke.cHollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: rename 44x MMU functions used in booke.cHollis Blanchard
e500 will provide its own implementation of these. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: turn tlb_xlate() into a per-core hook (and give it a better name)Hollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: change kvmppc_mmu_map() parametersHollis Blanchard
Passing just the TLB index will ease an e500 implementation. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: small cosmetic changes to Book E DTLB miss handlerHollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: cosmetic changes to mmu hook namesHollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: ppc: move struct kvmppc_44x_tlbe into 44x-specific headerHollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Move struct kvm_pio_request into x86 kvm_host.hAvi Kivity
This is an x86 specific stucture and has no business living in common code. Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: PIT: provide an option to disable interrupt reinjectionMarcelo Tosatti
Certain clocks (such as TSC) in older 2.6 guests overaccount for lost ticks, causing severe time drift. Interrupt reinjection magnifies the problem. Provide an option to disable it. [avi: allow room for expansion in case we want to disable reinjection of other timers] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2009-03-24KVM: Fallback support for MSR_VM_HSAVE_PAAvi Kivity
Since we advertise MSR_VM_HSAVE_PA, userspace will attempt to read it even on Intel. Implement fake support for this MSR to avoid the warnings. Signed-off-by: Avi Kivity <avi@redhat.com>
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