- 29 8月, 2014 1 次提交
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由 Radim Krčmář 提交于
Using static inline is going to save few bytes and cycles. For example on powerpc, the difference is 700 B after stripping. (5 kB before) This patch also deals with two overlooked empty functions: kvm_arch_flush_shadow was not removed from arch/mips/kvm/mips.c 2df72e9b KVM: split kvm_arch_flush_shadow and kvm_arch_sched_in never made it into arch/ia64/kvm/kvm-ia64.c. e790d9ef KVM: add kvm_arch_sched_in Signed-off-by: NRadim KrÄmář <rkrcmar@redhat.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 28 7月, 2014 1 次提交
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由 Alexander Graf 提交于
In preparation to make the check_extension function available to VM scope we add a struct kvm * argument to the function header and rename the function accordingly. It will still be called from the /dev/kvm fd, but with a NULL argument for struct kvm *. Signed-off-by: NAlexander Graf <agraf@suse.de> Acked-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 13 3月, 2014 1 次提交
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由 Gabriel L. Somlo 提交于
Both QEMU and KVM have already accumulated a significant number of optimizations based on the hard-coded assumption that ioapic polarity will always use the ActiveHigh convention, where the logical and physical states of level-triggered irq lines always match (i.e., active(asserted) == high == 1, inactive == low == 0). QEMU guests are expected to follow directions given via ACPI and configure the ioapic with polarity 0 (ActiveHigh). However, even when misbehaving guests (e.g. OS X <= 10.9) set the ioapic polarity to 1 (ActiveLow), QEMU will still use the ActiveHigh signaling convention when interfacing with KVM. This patch modifies KVM to completely ignore ioapic polarity as set by the guest OS, enabling misbehaving guests to work alongside those which comply with the ActiveHigh polarity specified by QEMU's ACPI tables. Signed-off-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NGabriel L. Somlo <somlo@cmu.edu> [Move documentation to KVM_IRQ_LINE, add ia64. - Paolo] Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 13 12月, 2013 1 次提交
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由 Takuya Yoshikawa 提交于
Since the commit 15ad7146 ("KVM: Use the scheduler preemption notifiers to make kvm preemptible"), the remaining stuff in this function is a simple cond_resched() call with an extra need_resched() check which was there to avoid dropping VCPUs unnecessarily. Now it is meaningless. Signed-off-by: NTakuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 17 10月, 2013 1 次提交
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由 Aneesh Kumar K.V 提交于
We will use that in the later patch to find the kvm ops handler Signed-off-by: NAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: NAlexander Graf <agraf@suse.de>
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- 18 7月, 2013 1 次提交
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由 Takuya Yoshikawa 提交于
This is called right after the memslots is updated, i.e. when the result of update_memslots() gets installed in install_new_memslots(). Since the memslots needs to be updated twice when we delete or move a memslot, kvm_arch_commit_memory_region() does not correspond to this exactly. In the following patch, x86 will use this new API to check if the mmio generation has reached its maximum value, in which case mmio sptes need to be flushed out. Signed-off-by: NTakuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Acked-by: NAlexander Graf <agraf@suse.de> Reviewed-by: NXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
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- 30 4月, 2013 1 次提交
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由 Alex Williamson 提交于
Fix build with CONFIG_PCI unset by linking KVM_CAP_IOMMU to device assignment config option. It has no purpose otherwise. Signed-off-by: NAlex Williamson <alex.williamson@redhat.com> Reported-by: NRandy Dunlap <rdunlap@infradead.org> Acked-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 28 4月, 2013 1 次提交
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由 Alex Williamson 提交于
We hope to at some point deprecate KVM legacy device assignment in favor of VFIO-based assignment. Towards that end, allow legacy device assignment to be deconfigured. Signed-off-by: NAlex Williamson <alex.williamson@redhat.com> Reviewed-by: NAlexander Graf <agraf@suse.de> Acked-by: NMichael S. Tsirkin <mst@redhat.com> Signed-off-by: NGleb Natapov <gleb@redhat.com>
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- 18 4月, 2013 1 次提交
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由 Yang Zhang 提交于
Fix the compile error with kvm_vm_ioctl_irq_line. Signed-off-by: NYang Zhang <yang.z.zhang@Intel.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 05 3月, 2013 4 次提交
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由 Takuya Yoshikawa 提交于
This patch makes the parameter old a const pointer to the old memory slot and adds a new parameter named change to know the change being requested: the former is for removing extra copying and the latter is for cleaning up the code. Signed-off-by: NTakuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Takuya Yoshikawa 提交于
This patch drops the parameter old, a copy of the old memory slot, and adds a new parameter named change to know the change being requested. This not only cleans up the code but also removes extra copying of the memory slot structure. Signed-off-by: NTakuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Takuya Yoshikawa 提交于
Except ia64's stale code, KVM_SET_MEMORY_REGION support, this is only used for sanity checks in __kvm_set_memory_region() which can easily be changed to use slot id instead. Signed-off-by: NTakuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Takuya Yoshikawa 提交于
X86 does not use this any more. The remaining user, s390's !user_alloc check, can be simply removed since KVM_SET_MEMORY_REGION ioctl is no longer supported. Note: fixed powerpc's indentations with spaces to suppress checkpatch errors. Signed-off-by: NTakuya Yoshikawa <yoshikawa_takuya_b1@lab.ntt.co.jp> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 14 12月, 2012 2 次提交
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由 Alex Williamson 提交于
There's no need for this to be an int, it holds a boolean. Move to the end of the struct for alignment. Reviewed-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAlex Williamson <alex.williamson@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Alex Williamson 提交于
It's easy to confuse KVM_MEMORY_SLOTS and KVM_MEM_SLOTS_NUM. One is the user accessible slots and the other is user + private. Make this more obvious. Reviewed-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAlex Williamson <alex.williamson@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 28 11月, 2012 1 次提交
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由 Marcelo Tosatti 提交于
TSC initialization will soon make use of online_vcpus. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 19 11月, 2012 1 次提交
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由 Masanari Iida 提交于
Signed-off-by: NMasanari Iida <standby24x7@gmail.com> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 27 10月, 2012 1 次提交
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由 Wei Yongjun 提交于
The variable base_gfn is initialized but never used otherwise, so remove the unused variable. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 06 9月, 2012 1 次提交
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由 Marcelo Tosatti 提交于
Introducing kvm_arch_flush_shadow_memslot, to invalidate the translations of a single memory slot. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 26 7月, 2012 1 次提交
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由 Christoffer Dall 提交于
Handle KVM_IRQ_LINE and KVM_IRQ_LINE_STATUS in the generic kvm_vm_ioctl() function and call into kvm_vm_ioctl_irq_line(). This is even more relevant when KVM/ARM also uses this ioctl. Signed-off-by: NChristoffer Dall <c.dall@virtualopensystems.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 09 5月, 2012 1 次提交
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由 Avi Kivity 提交于
s/kcm/kvm/. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 20 4月, 2012 2 次提交
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由 Avi Kivity 提交于
s/kcm/kvm/. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Avi Kivity 提交于
MMIO that are split across a page boundary are currently broken - the code does not expect to be aborted by the exit to userspace for the first MMIO fragment. This patch fixes the problem by generalizing the current code for handling 16-byte MMIOs to handle a number of "fragments", and changes the MMIO code to create those fragments. Signed-off-by: NAvi Kivity <avi@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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- 08 4月, 2012 1 次提交
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由 Christoffer Dall 提交于
The kvm_vcpu_kick function performs roughly the same funcitonality on most all architectures, so we shouldn't have separate copies. PowerPC keeps a pointer to interchanging waitqueues on the vcpu_arch structure and to accomodate this special need a __KVM_HAVE_ARCH_VCPU_GET_WQ define and accompanying function kvm_arch_vcpu_wq have been defined. For all other architectures this is a generic inline that just returns &vcpu->wq; Acked-by: NScott Wood <scottwood@freescale.com> Signed-off-by: NChristoffer Dall <c.dall@virtualopensystems.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 08 3月, 2012 2 次提交
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由 Avi Kivity 提交于
If some vcpus are created before KVM_CREATE_IRQCHIP, then irqchip_in_kernel() and vcpu->arch.apic will be inconsistent, leading to potential NULL pointer dereferences. Fix by: - ensuring that no vcpus are installed when KVM_CREATE_IRQCHIP is called - ensuring that a vcpu has an apic if it is installed after KVM_CREATE_IRQCHIP This is somewhat long winded because vcpu->arch.apic is created without kvm->lock held. Based on earlier patch by Michael Ellerman. Signed-off-by: NMichael Ellerman <michael@ellerman.id.au> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Takuya Yoshikawa 提交于
Some members of kvm_memory_slot are not used by every architecture. This patch is the first step to make this difference clear by introducing kvm_memory_slot::arch; lpage_info is moved into it. Signed-off-by: NTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 05 3月, 2012 2 次提交
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由 Carsten Otte 提交于
This patch exports the s390 SIE hardware control block to userspace via the mapping of the vcpu file descriptor. In order to do so, a new arch callback named kvm_arch_vcpu_fault is introduced for all architectures. It allows to map architecture specific pages. Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Carsten Otte 提交于
This patch introduces a new config option for user controlled kernel virtual machines. It introduces a parameter to KVM_CREATE_VM that allows to set bits that alter the capabilities of the newly created virtual machine. The parameter is passed to kvm_arch_init_vm for all architectures. The only valid modifier bit for now is KVM_VM_S390_UCONTROL. This requires CAP_SYS_ADMIN privileges and creates a user controlled virtual machine on s390 architectures. Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 27 12月, 2011 3 次提交
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由 Xiao Guangrong 提交于
There is the same struct definition in ia64 and kvm common code: arch/ia64/kvm//kvm-ia64.c: At top level: arch/ia64/kvm//kvm-ia64.c:777:8: error: redefinition of ‘struct kvm_io_range’ include/linux/kvm_host.h:62:8: note: originally defined here So, rename kvm_io_range to kvm_ia64_io_range in ia64 code Signed-off-by: NXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Xiao Guangrong 提交于
Introduce id_to_memslot to get memslot by slot id Signed-off-by: NXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Xiao Guangrong 提交于
Introduce kvm_for_each_memslot to walk all valid memslot Signed-off-by: NXiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 21 10月, 2011 1 次提交
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由 Joerg Roedel 提交于
With per-bus iommu_ops the iommu_found function needs to work on a bus_type too. This patch adds a bus_type parameter to that function and converts all call-places. The function is also renamed to iommu_present because the function now checks if an iommu is present for a given bus and does not check for a global iommu anymore. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com>
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- 18 3月, 2011 1 次提交
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由 Xiao Guangrong 提交于
Currently we keep track of only two states: guest mode and host mode. This patch adds an "exiting guest mode" state that tells us that an IPI will happen soon, so unless we need to wait for the IPI, we can avoid it completely. Also 1: No need atomically to read/write ->mode in vcpu's thread 2: reorganize struct kvm_vcpu to make ->mode and ->requests in the same cache line explicitly Signed-off-by: NXiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 12 1月, 2011 2 次提交
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由 Takuya Yoshikawa 提交于
In KVM_CREATE_IRQCHIP, kvm_io_bus_unregister_dev() is called without taking slots_lock in the error handling path. Signed-off-by: NTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jan Kiszka 提交于
IA64 support forces us to abstract the allocation of the kvm structure. But instead of mixing this up with arch-specific initialization and doing the same on destruction, split both steps. This allows to move generic destruction calls into generic code. It also fixes error clean-up on failures of kvm_create_vm for IA64. Signed-off-by: NJan Kiszka <jan.kiszka@siemens.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 01 8月, 2010 4 次提交
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由 Takuya Yoshikawa 提交于
kvm_ia64_sync_dirty_log() is a helper function for kvm_vm_ioctl_get_dirty_log() which copies ia64's arch specific dirty bitmap to general one in memslot. So doing sanity checks in this function is unnatural. We move these checks outside of this and change the prototype appropriately. Signed-off-by: NTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Takuya Yoshikawa 提交于
kvm_get_dirty_log() calls copy_to_user(). So we need to narrow the dirty_log_lock spin_lock section not to include this. Signed-off-by: NTakuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
As advertised in feature-removal-schedule.txt. Equivalent support is provided by overlapping memory regions. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
All vcpu ioctls need to be locked, so instead of locking each one specifically we lock at the generic dispatcher. This patch only updates generic ioctls and leaves arch specific ioctls alone. Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 17 6月, 2010 1 次提交
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由 Uwe Kleine-König 提交于
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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