- 31 12月, 2008 1 次提交
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由 Jan Kiszka 提交于
Introduces the KVM_NMI IOCTL to the generic x86 part of KVM for injecting NMIs from user space and also extends the statistic report accordingly. Based on the original patch by Sheng Yang. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 28 10月, 2008 1 次提交
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由 Avi Kivity 提交于
Reserve some space so we can add more data. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 15 10月, 2008 9 次提交
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由 Xiantao Zhang 提交于
With intel iommu hardware, we can assign devices to kvm/ia64 guests. Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Xiantao Zhang 提交于
To share with other archs, this patch moves device assignment logic to common parts. Signed-off-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Ben-Ami Yassour 提交于
Based on a patch by: Kay, Allen M <allen.m.kay@intel.com> This patch enables PCI device assignment based on VT-d support. When a device is assigned to the guest, the guest memory is pinned and the mapping is updated in the VT-d IOMMU. [Amit: Expose KVM_CAP_IOMMU so we can check if an IOMMU is present and also control enable/disable from userspace] Signed-off-by: NKay, Allen M <allen.m.kay@intel.com> Signed-off-by: NWeidong Han <weidong.han@intel.com> Signed-off-by: NBen-Ami Yassour <benami@il.ibm.com> Signed-off-by: NAmit Shah <amit.shah@qumranet.com> Acked-by: NMark Gross <mgross@linux.intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Ben-Ami Yassour 提交于
Based on a patch from: Amit Shah <amit.shah@qumranet.com> This patch adds support for handling PCI devices that are assigned to the guest. The device to be assigned to the guest is registered in the host kernel and interrupt delivery is handled. If a device is already assigned, or the device driver for it is still loaded on the host, the device assignment is failed by conveying a -EBUSY reply to the userspace. Devices that share their interrupt line are not supported at the moment. By itself, this patch will not make devices work within the guest. The VT-d extension is required to enable the device to perform DMA. Another alternative is PVDMA. Signed-off-by: NAmit Shah <amit.shah@qumranet.com> Signed-off-by: NBen-Ami Yassour <benami@il.ibm.com> Signed-off-by: NWeidong Han <weidong.han@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Ehrhardt 提交于
This patch adds a trace point for the instruction emulation on embedded powerpc utilizing the KVM_TRACE interface. Signed-off-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jerone Young 提交于
This patch adds trace points to track powerpc TLB activities using the KVM_TRACE infrastructure. Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Ehrhardt 提交于
The current kvmtrace code uses get_cycles() while the interpretation would be easier using using nanoseconds. ktime_get() should give at least the same accuracy as get_cycles on all architectures (even better on 32bit archs) but at a better unit (e.g. comparable between hosts with different frequencies. [avi: avoid ktime_t in public header] Signed-off-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Acked-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Ehrhardt 提交于
This patch fixes kvmtrace use on big endian systems. When using bit fields the compiler will lay data out in the wrong order expected when laid down into a file. This fixes it by using one variable instead of using bit fields. Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Hollis Blanchard 提交于
Move KVM trace definitions from x86 specific kvm headers to common kvm headers to create a cross-architecture numbering scheme for trace events. This means the kvmtrace_format userspace tool won't need to know which architecture produced the log file being processed. Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 25 8月, 2008 1 次提交
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由 Adrian Bunk 提交于
The following part of commit 9ef621d3 (KVM: Support mixed endian machines) changed on the size of a struct that is exported to userspace: include/linux/kvm.h: @@ -318,14 +318,14 @@ struct kvm_trace_rec { __u32 vcpu_id; union { struct { - __u32 cycle_lo, cycle_hi; + __u64 cycle_u64; __u32 extra_u32[KVM_TRC_EXTRA_MAX]; } cycle; struct { __u32 extra_u32[KVM_TRC_EXTRA_MAX]; } nocycle; } u; -}; +} __attribute__((packed)); Packing a struct was the correct idea, but it packed the wrong struct. Signed-off-by: NAdrian Bunk <bunk@kernel.org> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 29 7月, 2008 1 次提交
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 20 7月, 2008 2 次提交
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由 Tan, Li 提交于
Currently kvmtrace is not portable. This will prevent from copying a trace file from big-endian target to little-endian workstation for analysis. In the patch, kernel outputs metadata containing a magic number to trace log, and changes 64-bit words to be u64 instead of a pair of u32s. Signed-off-by: NTan Li <li.tan@intel.com> Acked-by: NJerone Young <jyoung5@us.ibm.com> Acked-by: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Laurent Vivier 提交于
This patch adds all needed structures to coalesce MMIOs. Until an architecture uses it, it is not compiled. Coalesced MMIO introduces two ioctl() to define where are the MMIO zones that can be coalesced: - KVM_REGISTER_COALESCED_MMIO registers a coalesced MMIO zone. It requests one parameter (struct kvm_coalesced_mmio_zone) which defines a memory area where MMIOs can be coalesced until the next switch to user space. The maximum number of MMIO zones is KVM_COALESCED_MMIO_ZONE_MAX. - KVM_UNREGISTER_COALESCED_MMIO cancels all registered zones inside the given bounds (bounds are also given by struct kvm_coalesced_mmio_zone). The userspace client can check kernel coalesced MMIO availability by asking ioctl(KVM_CHECK_EXTENSION) for the KVM_CAP_COALESCED_MMIO capability. The ioctl() call to KVM_CAP_COALESCED_MMIO will return 0 if not supported, or the page offset where will be stored the ring buffer. The page offset depends on the architecture. After an ioctl(KVM_RUN), the first page of the KVM memory mapped points to a kvm_run structure. The offset given by KVM_CAP_COALESCED_MMIO is an offset to the coalesced MMIO ring expressed in PAGE_SIZE relatively to the address of the start of th kvm_run structure. The MMIO ring buffer is defined by the structure kvm_coalesced_mmio_ring. [akio: fix oops during guest shutdown] Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAkio Takebe <takebe_akio@jp.fujitsu.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 27 4月, 2008 15 次提交
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由 Hollis Blanchard 提交于
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: NHollis Blanchard <hollisb@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Marcelo Tosatti 提交于
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: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Feng (Eric) Liu 提交于
Trace markers allow userspace to trace execution of a virtual machine in order to monitor its performance. Signed-off-by: NFeng (Eric) Liu <eric.e.liu@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Borntraeger 提交于
This patch introduces interpretation of some diagnose instruction intercepts. Diagnose is our classic architected way of doing a hypercall. This patch features the following diagnose codes: - vm storage size, that tells the guest about its memory layout - time slice end, which is used by the guest to indicate that it waits for a lock and thus cannot use up its time slice in a useful way - ipl functions, which a guest can use to reset and reboot itself In order to implement ipl functions, we also introduce an exit reason that causes userspace to perform various resets on the virtual machine. All resets are described in the principles of operation book, except KVM_S390_RESET_IPL which causes a reboot of the machine. Acked-by: NMartin Schwidefsky <martin.schwidefsky@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Carsten Otte 提交于
This patch contains the s390 interrupt subsystem (similar to in kernel apic) including timer interrupts (similar to in-kernel-pit) and enabled wait (similar to in kernel hlt). In order to achieve that, this patch also introduces intercept handling for instruction intercepts, and it implements load control instructions. This patch introduces an ioctl KVM_S390_INTERRUPT which is valid for both the vm file descriptors and the vcpu file descriptors. In case this ioctl is issued against a vm file descriptor, the interrupt is considered floating. Floating interrupts may be delivered to any virtual cpu in the configuration. The following interrupts are supported: SIGP STOP - interprocessor signal that stops a remote cpu SIGP SET PREFIX - interprocessor signal that sets the prefix register of a (stopped) remote cpu INT EMERGENCY - interprocessor interrupt, usually used to signal need_reshed and for smp_call_function() in the guest. PROGRAM INT - exception during program execution such as page fault, illegal instruction and friends RESTART - interprocessor signal that starts a stopped cpu INT VIRTIO - floating interrupt for virtio signalisation INT SERVICE - floating interrupt for signalisations from the system service processor struct kvm_s390_interrupt, which is submitted as ioctl parameter when injecting an interrupt, also carrys parameter data for interrupts along with the interrupt type. Interrupts on s390 usually have a state that represents the current operation, or identifies which device has caused the interruption on s390. kvm_s390_handle_wait() does handle waitpsw in two flavors: in case of a disabled wait (that is, disabled for interrupts), we exit to userspace. In case of an enabled wait we set up a timer that equals the cpu clock comparator value and sleep on a wait queue. [christian: change virtio interrupt to 0x2603] Acked-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Borntraeger 提交于
This path introduces handling of sie intercepts in three flavors: Intercepts are either handled completely in-kernel by kvm_handle_sie_intercept(), or passed to userspace with corresponding data in struct kvm_run in case kvm_handle_sie_intercept() returns -ENOTSUPP. In case of partial execution in kernel with the need of userspace support, kvm_handle_sie_intercept() may choose to set up struct kvm_run and return -EREMOTE. The trivial intercept reasons are handled in this patch: handle_noop() just does nothing for intercepts that don't require our support at all handle_stop() is called when a cpu enters stopped state, and it drops out to userland after updating our vcpu state handle_validity() faults in the cpu lowcore if needed, or passes the request to userland Acked-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Heiko Carstens 提交于
This patch contains the port of Qumranet's kvm kernel module to IBM zSeries (aka s390x, mainframe) architecture. It uses the mainframe's virtualization instruction SIE to run virtual machines with up to 64 virtual CPUs each. This port is only usable on 64bit host kernels, and can only run 64bit guest kernels. However, running 31bit applications in guest userspace is possible. The following source files are introduced by this patch arch/s390/kvm/kvm-s390.c similar to arch/x86/kvm/x86.c, this implements all arch callbacks for kvm. __vcpu_run calls back into sie64a to enter the guest machine context arch/s390/kvm/sie64a.S assembler function sie64a, which enters guest context via SIE, and switches world before and after that include/asm-s390/kvm_host.h contains all vital data structures needed to run virtual machines on the mainframe include/asm-s390/kvm.h defines kvm_regs and friends for user access to guest register content arch/s390/kvm/gaccess.h functions similar to uaccess to access guest memory arch/s390/kvm/kvm-s390.h header file for kvm-s390 internals, extended by later patches Acked-by: NMartin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Christian Borntraeger 提交于
include/linux/kvm.h defines struct kvm_dirty_log to [...] union { void __user *dirty_bitmap; /* one bit per page */ __u64 padding; }; __user requires compiler.h to compile. Currently, this works on x86 only coincidentally due to other include files. This patch makes kvm.h compile in all cases. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Marcelo Tosatti 提交于
Hypercall based pte updates are faster than faults, and also allow use of the lazy MMU mode to batch operations. Don't report the feature if two dimensional paging is enabled. [avi: - one mmu_op hypercall instead of one per op - allow 64-bit gpa on hypercall - don't pass host errors (-ENOMEM) to guest] [akpm: warning fix on i386] Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Marcelo Tosatti 提交于
Add basic KVM paravirt support. Avoid vm-exits on IO delays. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Sheng Yang 提交于
Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Sheng Yang 提交于
The patch moves the PIT model from userspace to kernel, and increases the timer accuracy greatly. [marcelo: make last_injected_time per-guest] Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Tested-and-Acked-by: NAlex Davis <alex14641@yahoo.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
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This is the host part of kvm clocksource implementation. As it does not include clockevents, it is a fairly simple implementation. We only have to register a per-vcpu area, and start writing to it periodically. The area is binary compatible with xen, as we use the same shadow_info structure. [marcelo: fix bad_page on MSR_KVM_SYSTEM_TIME] [avi: save full value of the msr, even if enable bit is clear] [avi: clear previous value of time_page] Signed-off-by: NGlauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 03 3月, 2008 1 次提交
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由 Avi Kivity 提交于
One of the use cases for the supported cpuid list is to create a "greatest common denominator" of cpu capabilities in a server farm. As such, it is useful to be able to get the list without creating a virtual machine first. Since the code does not depend on the vm in any way, all that is needed is to move it to the device ioctl handler. The capability identifier is also changed so that binaries made against -rc1 will fail gracefully. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 31 1月, 2008 4 次提交
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由 Christian Ehrhardt 提交于
This patch moves kvm_fpu asm-x86/kvm.h to allow every architecture to define an own representation used for KVM_GET_FPU/KVM_SET_FPU. Signed-off-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Acked-by: NCarsten Otte <cotte@de.ibm.com> Acked-by: NZhang Xiantao <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
This adds a mechanism for exposing the virtual apic tpr to the guest, and a protocol for letting the guest update the tpr without causing a vmexit if conditions allow (e.g. there is no interrupt pending with a higher priority than the new tpr). Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Add a facility to report on accesses to the local apic tpr even if the local apic is emulated in the kernel. This is basically a hack that allows userspace to patch Windows which tends to bang on the tpr a lot. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Zhang Xiantao 提交于
IA64 also needs to see ioapic structure in irqchip. Signed-off-by: Nxiantao.zhang@intel.com <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 30 1月, 2008 5 次提交
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由 Jerone Young 提交于
This patch fixes a small issue where sturctures: kvm_pic_state kvm_ioapic_state are defined inside x86 specific code and may or may not be defined in anyway for other architectures. The problem caused is one cannot compile userspace apps (ex. libkvm) for other archs since a size cannot be determined for these structures. Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Dan Kenigsberg 提交于
The current cpuid management suffers from several problems, which inhibit passing through the host feature set to the guest: - No way to tell which features the host supports While some features can be supported with no changes to kvm, others need explicit support. That means kvm needs to vet the feature set before it is passed to the guest. - No support for indexed or stateful cpuid entries Some cpuid entries depend on ecx as well as on eax, or on internal state in the processor (running cpuid multiple times with the same input returns different output). The current cpuid machinery only supports keying on eax. - No support for save/restore/migrate The internal state above needs to be exposed to userspace so it can be saved or migrated. This patch adds extended cpuid support by means of three new ioctls: - KVM_GET_SUPPORTED_CPUID: get all cpuid entries the host (and kvm) supports - KVM_SET_CPUID2: sets the vcpu's cpuid table - KVM_GET_CPUID2: gets the vcpu's cpuid table, including hidden state [avi: fix original KVM_SET_CPUID not removing nx on non-nx hosts as it did before] Signed-off-by: NDan Kenigsberg <danken@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jerone Young 提交于
This patch moves structures: kvm_cpuid_entry kvm_cpuid from include/linux/kvm.h to include/asm-x86/kvm.h Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jerone Young 提交于
Move structures: kvm_sregs kvm_msr_entry kvm_msrs kvm_msr_list from include/linux/kvm.h to include/asm-x86/kvm.h Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jerone Young 提交于
This patch moves structures: kvm_segment kvm_dtable from include/linux/kvm.h to include/asm-x86/kvm.h Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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