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2008-04-27KVM: Add MAINTAINERS entry for PowerPC KVMHollis Blanchard
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ppc: Add DCR access information to struct kvm_runHollis Blanchard
Device Control Registers are essentially another address space found on PowerPC 4xx processors, analogous to PIO on x86. DCRs are always 32 bits, and can be identified by a 32-bit number. We forward most DCR accesses to userspace for emulation (with the exception of CPR0 registers, which can be read directly for simplicity in timebase frequency determination). Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27ppc: Export tlb_44x_hwater for KVMHollis Blanchard
PowerPC 440 KVM needs to know how many TLB entries are used for the host kernel linear mapping (it does not modify these mappings when switching between guest and host execution). Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Acked-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Rename debugfs_dir to kvm_debugfs_dirHollis Blanchard
It's a globally exported symbol now. Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: x86 emulator: fix lea to really get the effective addressAvi Kivity
We never hit this, since there is currently no reason to emulate lea. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: x86 emulator: fix smsw and lmsw with a memory operandAvi Kivity
lmsw and smsw were implemented only with a register operand. Extend them to support a memory operand as well. Fixes Windows running some display compatibility test on AMD hosts. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: x86 emulator: initialize src.val and dst.val for register operandsAvi Kivity
This lets us treat the case where mod == 3 in the same manner as other cases. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: force a new asid when initializing the vmcbAvi Kivity
Shutdown interception clears the vmcb, leaving the asid at zero (which is illegal. so force a new asid on vmcb initialization. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: fix kvm_vcpu_kick vs __vcpu_run raceMarcelo Tosatti
There is a window open between testing of pending IRQ's and assignment of guest_mode in __vcpu_run. Injection of IRQ's can race with __vcpu_run as follows: CPU0 CPU1 kvm_x86_ops->run() vcpu->guest_mode = 0 SET_IRQ_LINE ioctl .. kvm_x86_ops->inject_pending_irq kvm_cpu_has_interrupt() apic_test_and_set_irr() kvm_vcpu_kick if (vcpu->guest_mode) send_ipi() vcpu->guest_mode = 1 So move guest_mode=1 assignment before ->inject_pending_irq, and make sure that it won't reorder after it. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: add ioctls to save/store mpstateMarcelo Tosatti
So userspace can save/restore the mpstate during migration. [avi: export the #define constants describing the value] [christian: add s390 stubs] [avi: ditto for ia64] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Rename VCPU_MP_STATE_* to KVM_MP_STATE_*Avi Kivity
We wish to export it to userspace, so move it into the kvm namespace. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: hlt emulation should take in-kernel APIC/PIT timers into accountMarcelo Tosatti
Timers that fire between guest hlt and vcpu_block's add_wait_queue() are ignored, possibly resulting in hangs. Also make sure that atomic_inc and waitqueue_active tests happen in the specified order, otherwise the following race is open: CPU0 CPU1 if (waitqueue_active(wq)) add_wait_queue() if (!atomic_read(pit_timer->pending)) schedule() atomic_inc(pit_timer->pending) Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: do not intercept task switch with NPTJoerg Roedel
When KVM uses NPT there is no reason to intercept task switches. This patch removes the intercept for it in that case. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Add kvm trace userspace interfaceFeng(Eric) Liu
This interface allows user a space application to read the trace of kvm related events through relayfs. Signed-off-by: Feng (Eric) Liu <eric.e.liu@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Stub out kvmtraceAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: s390: Stub out kvmtraceAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Add trace markersFeng (Eric) Liu
Trace markers allow userspace to trace execution of a virtual machine in order to monitor its performance. Signed-off-by: Feng (Eric) Liu <eric.e.liu@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: add intercept for machine check exceptionJoerg Roedel
To properly forward a MCE occured while the guest is running to the host, we have to intercept this exception and call the host handler by hand. This is implemented by this patch. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: align shadow CR4.MCE with hostJoerg Roedel
This patch aligns the host version of the CR4.MCE bit with the CR4 active in the guest. This is necessary to get MCE exceptions when the guest is running. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: SVM: indent svm_set_cr4 with tabs instead of spacesJoerg Roedel
The svm_set_cr4 function is indented with spaces. This patch replaces them with tabs. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Register ioctl rangeAvi Kivity
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: MMU: Don't assume struct page for x86Anthony Liguori
This patch introduces a gfn_to_pfn() function and corresponding functions like kvm_release_pfn_dirty(). Using these new functions, we can modify the x86 MMU to no longer assume that it can always get a struct page for any given gfn. We don't want to eliminate gfn_to_page() entirely because a number of places assume they can do gfn_to_page() and then kmap() the results. When we support IO memory, gfn_to_page() will fail for IO pages although gfn_to_pfn() will succeed. This does not implement support for avoiding reference counting for reserved RAM or for IO memory. However, it should make those things pretty straight forward. Since we're only introducing new common symbols, I don't think it will break the non-x86 architectures but I haven't tested those. I've tested Intel, AMD, NPT, and hugetlbfs with Windows and Linux guests. [avi: fix overflow when shifting left pfns by adding casts] Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add a guide about how to create kvm guests on ia64Xiantao Zhang
Guide for creating virtual machine on kvm/ia64. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Enable kvm build for ia64Xiantao Zhang
Update the related Makefile and KConfig for kvm build Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add kvm sal/pal virtulization supportXiantao Zhang
Some sal/pal calls would be traped to kvm for virtulization from guest firmware. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add guest interruption injection supportXiantao Zhang
process.c mainly handle interruption injection, and some faults handling. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Generate offset values for assembly code useXiantao Zhang
asm-offsets.c will generate offset values used for assembly code for some fileds of special structures. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add optimization for some virtulization faultsXiantao Zhang
optvfault.S Add optimization for some performance-critical virtualization faults. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add processor virtulization supportXiantao Zhang
vcpu.c provides processor virtualization logic for kvm. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add trampoline for guest/host mode switchXiantao Zhang
trampoline code targets for guest/host world switch. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add mmio decoder for kvm/ia64Xiantao Zhang
mmio.c includes mmio decoder, and related mmio logics. Signed-off-by: Anthony Xu <Anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add interruption vector table for vmmXiantao Zhang
vmm_ivt.S includes an ivt for vmm use. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add TLB virtulization supportXiantao Zhang
vtlb.c includes tlb/VHPT virtulization. Signed-off-by: Anthony Xu <anthony.xu@intel.com> Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: VMM module interfacesXiantao Zhang
vmm.c adds the interfaces with kvm/module, and initialize global data area. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add header files for kvm/ia64Xiantao Zhang
kvm_minstate.h : Marcos about Min save routines. lapic.h: apic structure definition. vcpu.h : routions related to vcpu virtualization. vti.h : Some macros or routines for VT support on Itanium. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add kvm arch-specific core code for kvm/ia64Xiantao Zhang
kvm_ia64.c is created to handle kvm ia64-specific core logic. Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Add header files for kvm/ia64Xiantao Zhang
Three header files are added: asm-ia64/kvm.h asm-ia64/kvm_host.h asm-ia64/kvm_para.h Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: ia64: Prepare some structure and routines for kvm useXiantao Zhang
Register structures are defined per SDM. Add three small routines for kernel: ia64_ttag, ia64_loadrs, ia64_flushrs Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: s390: Improve pgste accessesHeiko Carstens
There is no need to use interlocked updates when the rcp lock is held. Therefore the simple bitops variants can be used. This should improve performance. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: s390: rename stfl to kvm_stflHeiko Carstens
Temporarily rename this function to avoid merge conflicts and/or dependencies. This function will be removed as soon as git-s390 and kvm.git are finally upstream. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: s390: Fix incorrect return valueHeiko Carstens
kvm_arch_vcpu_ioctl_run currently incorrectly always returns 0. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: MMU: prepopulate guest pages after write-protectingMarcelo Tosatti
Zdenek reported a bug where a looping "dmsetup status" eventually hangs on SMP guests. The problem is that kvm_mmu_get_page() prepopulates the shadow MMU before write protecting the guest page tables. By doing so, it leaves a window open where the guest can mark a pte as present while the host has shadow cached such pte as "notrap". Accesses to such address will fault in the guest without the host having a chance to fix the situation. Fix by moving the write protection before the pte prefetch. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: MMU: Only mark_page_accessed() if the page was accessed by the guestAvi Kivity
If the accessed bit is not set, the guest has never accessed this page (at least through this spte), so there's no need to mark the page accessed. This provides more accurate data for the eviction algortithm. Noted by Andrea Arcangeli. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: add vm refcountingIzik Eidus
the main purpose of adding this functions is the abilaty to release the spinlock that protect the kvm list while still be able to do operations on a specific kvm in a safe way. Signed-off-by: Izik Eidus <izike@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: function declaration parameter name cleanupJoerg Roedel
The kvm_host.h file for x86 declares the functions kvm_set_cr[0348]. In the header file their second parameter is named cr0 in all cases. This patch renames the parameters so that they match the function name. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: Free apic access page on vm destructionAvi Kivity
Noticed by Marcelo Tosatti. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: MMU: allow the vm to shrink the kvm mmu shadow cachesIzik Eidus
Allow the Linux memory manager to reclaim memory in the kvm shadow cache. Signed-off-by: Izik Eidus <izike@qumranet.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: MMU: unify slots_lock usageMarcelo Tosatti
Unify slots_lock acquision around vcpu_run(). This is simpler and less error-prone. Also fix some callsites that were not grabbing the lock properly. [avi: drop slots_lock while in guest mode to avoid holding the lock for indefinite periods] Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27KVM: VMX: Enable MSR Bitmap featureSheng Yang
MSR Bitmap controls whether the accessing of an MSR causes VM Exit. Eliminating exits on automatically saved and restored MSRs yields a small performance gain. Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-04-27s390: KVM guest: virtio device support, and kvm hypercallsChristian Borntraeger
This patch implements kvm guest kernel support for paravirtualized devices and contains two parts: o a basic virtio stub using virtio_ring and external interrupts and hypercalls o full hypercall implementation in kvm_para.h Currently we dont have PCI on s390. Making virtio_pci usable for s390 seems more complicated that providing an own stub. This virtio stub is similar to the lguest one, the memory for the descriptors and the device detection is made via additional mapped memory on top of the guest storage. We use an external interrupt with extint code 0x2603 for host->guest notification. The hypercall definition uses the diag instruction for issuing a hypercall. The parameters are written in R2-R7, the hypercall number is written in R1. This is similar to the system call ABI (svc) which can use R1 for the number and R2-R6 for the parameters. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
generated by cgit v0.10.2 at 2024-09-21 17:59:37 (GMT)