- 27 4月, 2008 3 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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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 12 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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由 Jerone Young 提交于
This patch moves structure lapic_state 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
This patch moves structure kvm_regs to include/asm-x86/kvm.h. Each architecture will need to create there own version of this structure. 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
This patch moves structures: kvm_pic_state kvm_ioapic_state to inclue/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
This patch moves sturct kvm_memory_alias from include/linux/kvm.h to include/asm-x86/kvm.h. Also have include/linux/kvm.h include include/asm/kvm.h. Signed-off-by: NJerone Young <jyoung5@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Izik Eidus 提交于
Currently kvm has a wart in that it requires three extra pages for use as a tss when emulating real mode on Intel. This patch moves the allocation internally, only requiring userspace to tell us where in the physical address space we can place the tss. Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Izik Eidus 提交于
Instead of having the kernel allocate memory to the guest, let userspace allocate it and pass the address to the kernel. This is required for s390 support, but also enables features like memory sharing and using hugetlbfs backed memory. Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Izik Eidus 提交于
The user is now able to set how many mmu pages will be allocated to the guest. Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 13 10月, 2007 12 次提交
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由 Avi Kivity 提交于
Easier for existence test (#ifdef) in userspace. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Eddie Dong 提交于
This patch adds a new vcpu-based IOCTL to save and restore the local apic registers for a single vcpu. The kernel only copies the apic page as a whole, extraction of registers is left to userspace side. On restore, the APIC timer is restarted from the initial count, this introduces a little delay, but works fine. Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 He, Qing 提交于
This patch adds support for in-kernel ioapic save and restore (to and from userspace). It uses the same get/set_irqchip ioctl as in-kernel PIC. Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 He, Qing 提交于
This patch adds two new ioctls to dump and write kernel irqchips for save/restore and live migration. PIC s/r and l/m is implemented in this patch. Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Eddie Dong 提交于
By sleeping in the kernel when hlt is executed, we simplify the in-kernel guest interrupt path considerably. Signed-off-by: NGregory Haskins <ghaskins@novell.com> Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Eddie Dong 提交于
Because lightweight exits (exits which don't involve userspace) are many times faster than heavyweight exits, it makes sense to emulate high usage devices in the kernel. The local APIC is one such device, especially for Windows and for SMP, so we add an APIC model to kvm. It also allows in-kernel host-side drivers to inject interrupts without going through userspace. [compile fix on i386 from Jindrich Makovicka] Signed-off-by: NYaozu (Eddie) Dong <Eddie.Dong@intel.com> Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Eddie Dong 提交于
Signed-off-by: NYaozu (Eddie) Dong <eddie.dong@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Yang, Sheng 提交于
This allows running 64-bit Windows. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Jeff Dike 提交于
Add the hypercall number to kvm_run and initialize it. This changes the ABI, but as this particular ABI was unusable before this no users are affected. Signed-off-by: NJeff Dike <jdike@linux.intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
Creating one's own BITMAP macro seems suboptimal: if we use manual arithmetic in the one place exposed to userspace, we can use standard macros elsewhere. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Rusty Russell 提交于
KVM interface is no longer experimental. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Note that as the size of struct kvm_run is not part of the ABI, we can add things at the end. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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- 03 5月, 2007 8 次提交
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由 Avi Kivity 提交于
As we no longer emulate in userspace, this is meaningless. We don't compute it on SVM anyway. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
It is illegal not to return from a pio or mmio request without completing it, as mmio or pio is an atomic operation. Therefore, we can simplify the userspace interface by avoiding the completion indication. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
These are really helpful when migrating an floating point app to another machine. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
With this, we can specify that accesses to one physical memory range will be remapped to another. This is useful for the vga window at 0xa0000 which is used as a movable window into the (much larger) framebuffer. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
The current string pio interface communicates using guest virtual addresses, relying on userspace to translate addresses and to check permissions. This interface cannot fully support guest smp, as the check needs to take into account two pages at one in case an unaligned string transfer straddles a page boundary. Change the interface not to communicate guest addresses at all; instead use a buffer page (mmaped by userspace) and do transfers there. The kernel manages the virtual to physical translation and can perform the checks atomically by taking the appropriate locks. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
This allows us to store offsets in the kernel/user kvm_run area, and be sure that userspace has them mapped. As offsets can be outside the kvm_run struct, userspace has no way of knowing how much to mmap. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
Allow a special signal mask to be used while executing in guest mode. This allows signals to be used to interrupt a vcpu without requiring signal delivery to a userspace handler, which is quite expensive. Userspace still receives -EINTR and can get the signal via sigwait(). Signed-off-by: NAvi Kivity <avi@qumranet.com>
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由 Avi Kivity 提交于
This is redundant, as we also return -EINTR from the ioctl, but it allows us to examine the exit_reason field on resume without seeing old data. Signed-off-by: NAvi Kivity <avi@qumranet.com>
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