- 30 1月, 2008 40 次提交
-
-
由 Christian Borntraeger 提交于
ppc and s390 offer the possibility to track process times precisely by looking at cpu timer on every context switch, irq, softirq etc. We can use that infrastructure as well for guest time accounting. We need to account the used time before we change the state. This patch adds a call to account_system_vtime to kvm_guest_enter and kvm_guest exit. If CONFIG_VIRT_CPU_ACCOUNTING is not set, account_system_vtime is defined in hardirq.h as an empty function, which means this patch does not change the behaviour on other platforms. I compile tested this patch on x86 and function tested the patch on s390. Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Izik Eidus 提交于
This allows guest memory to be swapped. Pages which are currently mapped via shadow page tables are pinned into memory, but all other pages can be freely swapped. The patch makes gfn_to_page() elevate the page's reference count, and introduces kvm_release_page() that pairs with it. Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Izik Eidus 提交于
In case the page is not present in the guest memory map, return a dummy page the guest can scribble on. This simplifies error checking in its users. Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Izik Eidus 提交于
The current kvm mmu only reverse maps writable translation. This is used to write-protect a page in case it becomes a pagetable. But with swapping support, we need a reverse mapping of read-only pages as well: when we evict a page, we need to remove any mapping to it, whether writable or not. Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Izik Eidus 提交于
Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Nitin A Kamble 提交于
Instruction: cmc, clc, cli, sti opcodes: 0xf5, 0xf8, 0xfa, 0xfb respectively. [avi: fix reference to EFLG_IF which is not defined anywhere] Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Simplify the walker level loop not to carry so much information from one loop to the next. In addition to being complex, this made kmap_atomic() critical sections difficult to manage. As a result of this change, kmap_atomic() sections are limited to actually touching the guest pte, which allows the other functions called from the walker to do sleepy operations. This will happen when we enable swapping. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Nitin A Kamble 提交于
Instructions: inc r16/r32 (opcode 0x40-0x47) dec r16/r32 (opcode 0x48-0x4f) Signed-off-by: NNitin A Kamble <nitin.a.kamble@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
We now have a new namespace, KVM_REQ_*, for bits in vcpu->requests. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Beside the obvious goodness of making code more common, this prevents a livelock with the next patch which moves interrupt injection out of the critical section. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Laurent Vivier 提交于
Add new-line at end of debug strings. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Qing He 提交于
If no apic is enabled in the bitmap of an interrupt delivery with delivery mode of lowest priority, a warning should be reported rather than select a fallback vcpu Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NEddie (Yaozu) Dong <eddie.dong@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Carsten Otte 提交于
This patch splits kvm_vcpu_ioctl into archtecture independent parts, and x86 specific parts which go to kvm_arch_vcpu_ioctl in x86.c. Common ioctls for all architectures are: KVM_RUN, KVM_GET/SET_(S-)REGS, KVM_TRANSLATE, KVM_INTERRUPT, KVM_DEBUG_GUEST, KVM_SET_SIGNAL_MASK, KVM_GET/SET_FPU Note that some PPC chips don't have an FPU, so we might need an #ifdef around KVM_GET/SET_FPU one day. x86 specific ioctls are: KVM_GET/SET_LAPIC, KVM_SET_CPUID, KVM_GET/SET_MSRS An interresting aspect is vcpu_load/vcpu_put. We now have a common vcpu_load/put which does the preemption stuff, and an architecture specific kvm_arch_vcpu_load/put. In the x86 case, this one calls the vmx/svm function defined in kvm_x86_ops. Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Reviewed-by: NChristian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: NChristian Ehrhardt <ehrhardt@linux.vnet.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Since the mmu uses different shadow pages for dirty large pages and clean large pages, this allows the mmu to drop ptes that are now invalid. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
This is consistent with real-mode permissions. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
By forcing clean huge pages to be read-only, we have separate roles for the shadow of a clean large page and the shadow of a dirty large page. This is necessary because different ptes will be instantiated for the two cases, even for read faults. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
We must set the bit before the shift, otherwise the wrong bit gets set. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
This is more consistent with the accessed bit management, and makes the dirty bit available earlier for other purposes. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Anthony Liguori 提交于
This time, the biggest change is gpa_to_hpa. The translation of GPA to HPA does not depend on the VCPU state unlike GVA to GPA so there's no need to pass in the kvm_vcpu. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Anthony Liguori 提交于
Some of the MMU functions take a struct kvm_vcpu even though they affect all VCPUs. This patch cleans up some of them to instead take a struct kvm. This makes things a bit more clear. The main thing that was confusing me was whether certain functions need to be called on all VCPUs. Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Carsten Otte 提交于
Signed-off-by: NCarsten Otte <cotte@de.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
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>
-
由 Mike Day 提交于
Signed-off-by: NMike D. Day <ncmike@ncultra.org> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Rusty Russell 提交于
Since vcpu->apic is of the correct type, there's not need to cast. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Rusty Russell 提交于
Move kvm_create_lapic() into kvm_vcpu_init(), rather than having svm and vmx do it. And make it return the error rather than a fairly random -ENOMEM. This also solves the problem that neither svm.c nor vmx.c actually handles the error path properly. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Rusty Russell 提交于
Instead of the asymetry of kvm_free_apic, implement kvm_free_lapic(). And guess what? I found a minor bug: we don't need to hrtimer_cancel() from kvm_main.c, because we do that in kvm_free_apic(). Also: 1) kvm_vcpu_uninit should be the reverse order from kvm_vcpu_init. 2) Don't set apic->regs_page to zero before freeing apic. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
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>
-
由 Izik Eidus 提交于
Signed-off-by: NIzik Eidus <izike@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Izik Eidus 提交于
When kvm uses user-allocated pages in the future for the guest, we won't be able to use page->private for rmap, since page->rmap is reserved for the filesystem. So we move the rmap base pointers to the memory slot. A side effect of this is that we need to store the gfn of each gpte in the shadow pages, since the memory slot is addressed by gfn, instead of hfn like struct page. Signed-off-by: NIzik Eidus <izik@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Now that smp_call_function_single() knows how to call a function on the current cpu, there's no need to check explicitly. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Noted by Eddie Dong. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Laurent Vivier 提交于
This patch modifies the management of REX prefix according behavior I saw in Xen 3.1. In Xen, this modification has been introduced by Jan Beulich. http://lists.xensource.com/archives/html/xen-changelog/2007-01/msg00081.htmlSigned-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Laurent Vivier 提交于
The only valid case is on protected page access, other cases are errors. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Qing He 提交于
Signed-off-by: NQing He <qing.he@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Laurent Vivier 提交于
Remove no_wb, use dst.type = OP_NONE instead, idea stollen from xen-3.1 Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Laurent Vivier 提交于
Remove _eflags and use directly ctxt->eflags. Caching eflags is not needed as it is restored to vcpu by kvm_main.c:emulate_instruction() from ctxt->eflags only if emulation doesn't fail. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Laurent Vivier 提交于
To improve readability, move push, writeback, and grp 1a/2/3/4/5/9 emulation parts into functions. Signed-off-by: NLaurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Ryan Harper 提交于
This patch removes the fault injected when the guest attempts to set reserved bits in cr3. X86 hardware doesn't generate a fault when setting reserved bits. The result of this patch is that vmware-server, running within a kvm guest, boots and runs memtest from an iso. Signed-off-by: NRyan Harper <ryanh@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
When we allow guest page faults to reach the guests directly, we lose the fault tracking which allows us to detect demand paging. So we provide an alternate mechnism by clearing the accessed bit when we set a pte, and checking it later to see if the guest actually used it. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-