- 15 10月, 2008 5 次提交
-
-
由 Avi Kivity 提交于
The vmx code assumes that IDT-Vectoring can only be set when an exception is injected due to the exception in question. That's not true, however: if the exception is injected correctly, and later another exception occurs but its delivery is blocked due to a fault, then we will incorrectly assume the first exception was not delivered. Fix by unconditionally dequeuing the pending exception, and requeuing it (or the second exception) if we see it in the IDT-Vectoring field. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Instead of processing nmi injection failure in the vm entry path, move it to the vm exit path (vm_complete_interrupts()). This separates nmi injection from nmi post-processing, and moves the nmi state from the VT state into vcpu state (new variable nmi_injected specifying an injection in progress). Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Currently most interrupt exit processing is handled on the entry path, which is confusing. Move the NMI IRET fault processing to a new function, vmx_complete_interrupts(), which is called on the vmexit path. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Marcelo Tosatti 提交于
As suggested by Avi, introduce accessors to read/write guest registers. This simplifies the ->cache_regs/->decache_regs interface, and improves register caching which is important for VMX, where the cost of vmcs_read/vmcs_write is significant. [avi: fix warnings] Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
MSR_IA32_FEATURE_LOCKED is just a bit in fact, which shouldn't be prefixed with MSR_. So is MSR_IA32_FEATURE_VMXON_ENABLED. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 11 9月, 2008 1 次提交
-
-
由 Sheng Yang 提交于
As well as discard fake accessed bit and dirty bit of EPT. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 27 7月, 2008 3 次提交
-
-
由 Sheng Yang 提交于
As well as move set base/mask ptes to vmx_init(). Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
When an event (such as an interrupt) is injected, and the stack is shadowed (and therefore write protected), the guest will exit. The current code will see that the stack is shadowed and emulate a few instructions, each time postponing the injection. Eventually the injection may succeed, but at that time the guest may be unwilling to accept the interrupt (for example, the TPR may have changed). This occurs every once in a while during a Windows 2008 boot. Fix by unshadowing the fault address if the fault was due to an event injection. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 20 7月, 2008 11 次提交
-
-
由 Avi Kivity 提交于
Fixes compilation with CONFIG_VMI enabled. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
Fix a potention issue caused by kvm_mmu_slot_remove_write_access(). The old behavior don't sync EPT TLB with modified EPT entry, which result in inconsistent content of EPT TLB and EPT table. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Chris Lalancette 提交于
Older linux guests (in this case, 2.6.9) can attempt to access the performance counter MSRs without a fixup section, and injecting a GPF kills the guest. Work around by allowing the guest to write those MSRs. Tested by me on RHEL-4 i386 and x86_64 guests, as well as F-9 guests. Signed-off-by: NChris Lalancette <clalance@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
The function ept_update_paging_mode_cr0() write to CPU_BASED_VM_EXEC_CONTROL based on vmcs_config.cpu_based_exec_ctrl. That's wrong because the variable may not consistent with the content in the CPU_BASE_VM_EXEC_CONTROL MSR. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Obsoleted by the vmx-specific per-cpu list. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
VMX hardware can cache the contents of a vcpu's vmcs. This cache needs to be flushed when migrating a vcpu to another cpu, or (which is the case that interests us here) when disabling hardware virtualization on a cpu. The current implementation of decaching iterates over the list of all vcpus, picks the ones that are potentially cached on the cpu that is being offlined, and flushes the cache. The problem is that it uses mutex_trylock() to gain exclusive access to the vcpu, which fires off a (benign) warning about using the mutex in an interrupt context. To avoid this, and to make things generally nicer, add a new per-cpu list of potentially cached vcus. This makes the decaching code much simpler. The list is vmx-specific since other hardware doesn't have this issue. [andrea: fix crash on suspend/resume] Signed-off-by: NAndrea Arcangeli <andrea@qumranet.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
KVM turns off hardware virtualization extensions during reboot, in order to disassociate the memory used by the virtualization extensions from the processor, and in order to have the system in a consistent state. Unfortunately virtual machines may still be running while this goes on, and once virtualization extensions are turned off, any virtulization instruction will #UD on execution. Fix by adding an exception handler to virtualization instructions; if we get an exception during reboot, we simply spin waiting for the reset to complete. If it's a true exception, BUG() so we can have our stack trace. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Joerg Roedel 提交于
This patch moves the trace entry for APIC accesses from the VMX code to the generic lapic code. This way APIC accesses from SVM will also be traced. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Harvey Harrison 提交于
Noticed by sparse: arch/x86/kvm/vmx.c:1583:6: warning: symbol 'vmx_disable_intercept_for_msr' was not declared. Should it be static? arch/x86/kvm/x86.c:3406:5: warning: symbol 'kvm_task_switch_16' was not declared. Should it be static? arch/x86/kvm/x86.c:3429:5: warning: symbol 'kvm_task_switch_32' was not declared. Should it be static? arch/x86/kvm/mmu.c:1968:6: warning: symbol 'kvm_mmu_remove_one_alloc_mmu_page' was not declared. Should it be static? arch/x86/kvm/mmu.c:2014:6: warning: symbol 'mmu_destroy_caches' was not declared. Should it be static? arch/x86/kvm/lapic.c:862:5: warning: symbol 'kvm_lapic_get_base' was not declared. Should it be static? arch/x86/kvm/i8254.c:94:5: warning: symbol 'pit_get_gate' was not declared. Should it be static? arch/x86/kvm/i8254.c:196:5: warning: symbol '__pit_timer_fn' was not declared. Should it be static? arch/x86/kvm/i8254.c:561:6: warning: symbol '__inject_pit_timer_intr' was not declared. Should it be static? Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 26 6月, 2008 2 次提交
-
-
由 Jens Axboe 提交于
It's not even passed on to smp_call_function() anymore, since that was removed. So kill it. Acked-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Reviewed-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
由 Jens Axboe 提交于
It's never used and the comments refer to nonatomic and retry interchangably. So get rid of it. Acked-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
-
- 24 6月, 2008 1 次提交
-
-
由 Avi Kivity 提交于
Switching msrs can occur either synchronously as a result of calls to the msr management functions (usually in response to the guest touching virtualized msrs), or asynchronously when preempting a kvm thread that has guest state loaded. If we're unlucky enough to have the two at the same time, host msrs are corrupted and the machine goes kaput on the next syscall. Most easily triggered by Windows Server 2008, as it does a lot of msr switching during bootup. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 07 6月, 2008 2 次提交
-
-
由 Eli Collins 提交于
Clear CR4.VMXE in hardware_disable. There's no reason to leave it set after doing a VMXOFF. VMware Workstation 6.5 checks CR4.VMXE as a proxy for whether the CPU is in VMX mode, so leaving VMXE set means we'll refuse to power on. With this change the user can power on after unloading the kvm-intel module. I tested on kvm-67 and kvm-69. Signed-off-by: NEli Collins <ecollins@vmware.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Marcelo Tosatti 提交于
Migrate the PIT timer to the physical CPU which vcpu0 is scheduled on, similarly to what is done for the LAPIC timers, otherwise PIT interrupts will be delayed until an unrelated event causes an exit. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 04 5月, 2008 4 次提交
-
-
由 Sheng Yang 提交于
Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
[aliguory: plug leak] Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
The function get_tdp_level() provided the number of tdp level for EPT and NPT rather than the NPT specific macro. Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
Signed-off-by: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
- 27 4月, 2008 11 次提交
-
-
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>
-
由 Marcelo Tosatti 提交于
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: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Sheng Yang 提交于
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: NSheng Yang <sheng.yang@intel.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Izik Eidus 提交于
This emulates the x86 hardware task switch mechanism in software, as it is unsupported by either vmx or svm. It allows operating systems which use it, like freedos, to run as kvm guests. 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 Avi Kivity 提交于
Useful for debugging. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Most Intel hosts have a stable tsc, and playing with the offset only reduces accuracy. By limiting tsc offset adjustment only to forward updates, we effectively disable tsc offset adjustment on these hosts. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Harvey Harrison 提交于
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: NHarvey Harrison <harvey.harrison@gmail.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
Names like 'set_cr3()' look dangerously close to affecting the host. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Avi Kivity 提交于
The x86 desc_struct unification allows us to remove segment_descriptor.h. Signed-off-by: NAvi Kivity <avi@qumranet.com>
-
由 Ryan Harper 提交于
Looking at Intel Volume 3b, page 148, table 20-11 and noticed that the field name is 'Deliver' not 'Deliever'. Attached patch changes the define name and its user in vmx.c Signed-off-by: NRyan Harper <ryanh@us.ibm.com> Signed-off-by: NAvi Kivity <avi@qumranet.com>
-