- 10 Jun, 2009 40 commits
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Marcelo Tosatti authored
Commit 46ee278652f4cbd51013471b64c7897ba9bcd1b1 causes Solaris 10 to hang on boot. Assuming that PIT counter reads should return 0 for an expired timer is wrong: when it is active, the counter never stops (see comment on __kpit_elapsed). Also arm a one shot timer for mode 0. Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Zhang, Xiantao authored
Since kvm-intel modue can't be built-in, make kvm depend on CONFIG_MODULES. Signed-off-by:
Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by:
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Gleb Natapov authored
The length of pushed on to the stack return address depends on operand size not address size. Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
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Sheng Yang authored
1. It's related to a Linux kernel bug which fixed by Ingo on 07a66d7c. The original code exists for quite a long time, and it would convert a PDE for large page into a normal PDE. But it fail to fit normal PDE well. With the code before Ingo's fix, the kernel would fall reserved bit checking with bit 8 - the remaining global bit of PTE. So the kernel would receive a double-fault. 2. After discussion, we decide to discard PDE bit 7-8 reserved checking for now. For this marked as reserved in SDM, but didn't checked by the processor in fact... Signed-off-by:
Sheng Yang <sheng@linux.intel.com> Signed-off-by:
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Gleb Natapov authored
There is no need to skip instruction if the reason for a task switch is a task gate in IDT and access to it is caused by an external even. The problem is currently solved only for VMX since there is no reliable way to skip an instruction in SVM. We should emulate it instead. Signed-off-by:
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Gleb Natapov authored
Back link is written to a wrong TSS now. Signed-off-by:
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Gleb Natapov authored
We will need it later in task_switch(). Code in handle_exception() is dead. is_external_interrupt(vect_info) will always be false since idt_vectoring_info is zeroed in vmx_complete_interrupts(). Signed-off-by:
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Gleb Natapov authored
...with a more straightforward switch(). Also fix a bug when NMI could be dropped on exit. Although this should never happen in practice, since NMIs can only be injected, never triggered internally by the guest like exceptions. Signed-off-by:
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Gleb Natapov authored
Bit 12 is undefined in any of the following cases: If the VM exit sets the valid bit in the IDT-vectoring information field. If the VM exit is due to a double fault. Signed-off-by:
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Dong, Eddie authored
Also remove bit 5-6 from rsvd_bits_mask per latest SDM. Signed-off-by:
Eddie Dong <Eddie.Dong@intel.com> Signed-off-by:
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Sheng Yang authored
The testing of feature is too early now, before vmcs_config complete initialization. Signed-off-by:
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Sheng Yang authored
And clean paranthes on returns. Signed-off-by:
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Wei Yongjun authored
Remove pointless conditional before kfree(). Signed-off-by:
Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by:
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Avi Kivity authored
A pte that is shadowed when the guest EFER.NXE=1 is not valid when EFER.NXE=0; if bit 63 is set, the pte should cause a fault, and since the shadow EFER always has NX enabled, this won't happen. Fix by using a different shadow page table for different EFER.NXE bits. This allows vcpus to run correctly with different values of EFER.NXE, and for transitions on this bit to be handled correctly without requiring a full flush. Signed-off-by: -
Dong, Eddie authored
Detect, indicate, and propagate page faults where reserved bits are set. Take care to handle the different paging modes, each of which has different sets of reserved bits. [avi: fix pte reserved bits for efer.nxe=0] Signed-off-by:
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Yang Zhang authored
Currently, the interrupt enable bit is cleared when in the vmm. This patch sets the bit and the external interrupts can be dealt with when in the vmm. This improves the I/O performance. Signed-off-by:
Yang Zhang <yang.zhang@intel.com> Signed-off-by:
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Eddie Dong authored
The original one is for the code before refactoring. Signed-off-by:
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Sheng Yang authored
EXIT_QUALIFICATION and GUEST_LINEAR_ADDRESS are natural width, not 64-bit. Signed-off-by:
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Avi Kivity authored
If the hardware does not support flexpriority, zero the module parameter. Signed-off-by: -
Gleb Natapov authored
kvm_vcpu_block() unhalts vpu on an interrupt/timer without checking if interrupt window is actually opened. Signed-off-by:
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Gleb Natapov authored
Currently timer events are processed before entering guest mode. Move it to main vcpu event loop since timer events should be processed even while vcpu is halted. Timer may cause interrupt/nmi to be injected and only then vcpu will be unhalted. Signed-off-by:
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Avi Kivity authored
Trivial. Signed-off-by: -
Avi Kivity authored
Allows reading back hardware capability. Signed-off-by: -
Avi Kivity authored
This allows reading back how the hardware is configured. Signed-off-by: -
Avi Kivity authored
Signed-off-by: -
Avi Kivity authored
Instead of 'enable_vpid=1', use a simple 'vpid=1'. Signed-off-by: -
Avi Kivity authored
It is a static vmx-specific function. Signed-off-by: -
Avi Kivity authored
Useful to see how the module was loaded. Signed-off-by: -
Gleb Natapov authored
The prioritized bit vector manipulation functions are useful in both vmx and svm. Signed-off-by:
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Gleb Natapov authored
svm_do_inject_vector() reimplements pop_irq(). Signed-off-by:
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Amit Shah authored
We ignore writes to the performance counters and performance event selector registers already. Kaspersky antivirus reads the eventsel MSR causing it to crash with the current behaviour. Return 0 as data when the eventsel registers are read to stop the crash. Signed-off-by:
Amit Shah <amit.shah@redhat.com> Signed-off-by:
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Gleb Natapov authored
free_mmu_pages() should only undo what alloc_mmu_pages() does. Free mmu pages from the generic VM destruction function, kvm_destroy_vm(). Signed-off-by:
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Sheng Yang authored
After discussion with Marcelo, we decided to rework device assignment framework together. The old problems are kernel logic is unnecessary complex. So Marcelo suggest to split it into a more elegant way: 1. Split host IRQ assign and guest IRQ assign. And userspace determine the combination. Also discard msi2intx parameter, userspace can specific KVM_DEV_IRQ_HOST_MSI | KVM_DEV_IRQ_GUEST_INTX in assigned_irq->flags to enable MSI to INTx convertion. 2. Split assign IRQ and deassign IRQ. Import two new ioctls: KVM_ASSIGN_DEV_IRQ and KVM_DEASSIGN_DEV_IRQ. This patch also fixed the reversed _IOR vs _IOW in definition(by deprecated the old interface). [avi: replace homemade bitcount() by hweight_long()] Signed-off-by:
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Hannes Eder authored
Fix this sparse warnings: arch/x86/kvm/lapic.c:916:22: warning: symbol 'lapic_timer_ops' was not declared. Should it be static? arch/x86/kvm/i8254.c:268:22: warning: symbol 'kpit_ops' was not declared. Should it be static? Signed-off-by:
Hannes Eder <hannes@hanneseder.net> Signed-off-by:
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Jes Sorensen authored
Copy in SN2 RTC based ITC emulation for fast exit. The two versions have the same size, so a dropin is simpler than patching the branch instruction to hit the SN2 version. Signed-off-by:
Jes Sorensen <jes@sgi.com> Acked-by:
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Jes Sorensen authored
On SN2 do not pass down the real ITC frequency, but rather patch the values to match the SN2 RTC frequency. Signed-off-by:
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Jes Sorensen authored
Move all reading of special register 'AR_ITC' into two functions, one in the kernel and one in the VMM module. When running on SN2, base the result on the RTC rather the system ITC, as the ITC isn't synchronized. Signed-off-by:
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Jes Sorensen authored
On SN2, map in the SN2 RTC registers to the VMM module, needed for ITC emulation. Signed-off-by:
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Gleb Natapov authored
Deliver interrupt during destination matching loop. Signed-off-by:
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Gleb Natapov authored
The new way does not require additional loop over vcpus to calculate the one with lowest priority as one is chosen during delivery bitmap construction. Signed-off-by:
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