- 10 Jun, 2009 40 commits
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Gleb Natapov authored
They are recalculated before each use anyway. Signed-off-by:
Gleb Natapov <gleb@redhat.com> Signed-off-by:
Avi Kivity <avi@redhat.com>
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Gleb Natapov authored
Saves many exits to userspace in a case of IRQ chip in userspace. Signed-off-by:
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Gleb Natapov authored
Even if IRQ chip is in userspace. Signed-off-by:
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Gleb Natapov authored
No longer used. Signed-off-by:
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Gleb Natapov authored
It is the same as inject_pending_irq() for VMX/SVM now. Signed-off-by:
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Gleb Natapov authored
It always return false for VMX/SVM now. Signed-off-by:
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Gleb Natapov authored
Start to use interrupt/exception queues like VMX does. This also fix the bug that if exit was caused by a guest internal exception access to IDT the exception was not reinjected. Use EVENTINJ to inject interrupts. Use VINT only for detecting when IRQ windows is open again. EVENTINJ ensures the interrupt is injected immediately and not delayed. Signed-off-by:
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Gleb Natapov authored
kvm_arch_interrupt_allowed() also checks IF so drop the check. Signed-off-by:
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Gleb Natapov authored
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Gleb Natapov authored
Use the same callback to inject irq/nmi events no matter what irqchip is in use. Only from VMX for now. Signed-off-by:
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Gleb Natapov authored
At the vector level, kernel and userspace irqchip are fairly similar. Signed-off-by:
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Jan Kiszka authored
Fix build breakage of hpa lookup in audit_mappings_page. Moreover, make this function robust against shadow_notrap_nonpresent_pte entries. Signed-off-by:
Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by:
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Jes Sorensen authored
Restore local irq enabled state before calling kvm_arch_vcpu_init(), which calls kmalloc(GFP_KERNEL). Signed-off-by:
Jes Sorensen <jes@sgi.com> Acked-by:
Xiantao Zhang <xiantao.zhang@intel.com> Signed-off-by:
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Jes Sorensen authored
Preserve interrupt status around call to kvm_insert_vmm_mappin() in kvm_vcpu_pre_transition(). Signed-off-by:
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Jes Sorensen authored
Make sure to restore the psr after calling kvm_insert_vmm_mapping() which calls ia64_itr_entry() as it disables local interrupts and kvm_vcpu_init() may sleep. Avoids a warning from the lock debugging code. Signed-off-by:
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Jes Sorensen authored
vti_vcpu_load() doesn't do anything, so lets get rid of it. Signed-off-by:
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Xiantao Zhang authored
Flush all vcpu's TLB entries once changes guest's memory mapping. Signed-off-by:
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Marcelo Tosatti authored
Matt T. Yourst notes that kvm_arch_vcpu_ioctl_set_sregs lacks validity checking for the new cr3 value: "Userspace callers of KVM_SET_SREGS can pass a bogus value of cr3 to the kernel. This will trigger a NULL pointer access in gfn_to_rmap() when userspace next tries to call KVM_RUN on the affected VCPU and kvm attempts to activate the new non-existent page table root. This happens since kvm only validates that cr3 points to a valid guest physical memory page when code *inside* the guest sets cr3. However, kvm currently trusts the userspace caller (e.g. QEMU) on the host machine to always supply a valid page table root, rather than properly validating it along with the rest of the reloaded guest state." http://sourceforge.net/tracker/?func=detail&atid=893831&aid=2687641&group_id=180599 Check for a valid cr3 address in kvm_arch_vcpu_ioctl_set_sregs, triple fault in case of failure. Cc: stable@kernel.org Signed-off-by:
Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by:
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Jes Sorensen authored
Reorder locking to avoid holding the slots_lock when entering the guest. Signed-off-by:
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Avi Kivity authored
Suggested by Ingo Molnar. Signed-off-by: -
Gleb Natapov authored
If a task switch was initiated because off a task gate in IDT and IDT was accessed because of an external even the instruction should not be skipped. Signed-off-by:
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Gleb Natapov authored
In the new mode instruction is decoded, but not executed. The EIP is moved to point after the instruction. Signed-off-by:
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Gleb Natapov authored
Do not emulate them yet. Signed-off-by:
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Gleb Natapov authored
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Gleb Natapov authored
Extend "Source operand type" opcode description field to 4 bites to accommodate new option. Signed-off-by:
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Gleb Natapov authored
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Gleb Natapov authored
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Gleb Natapov authored
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Gleb Natapov authored
No emulation yet. Signed-off-by:
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Gleb Natapov authored
Such as segment number in lcall/ljmp Signed-off-by:
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Marcelo Tosatti authored
Complexity to fix it not worthwhile the gains, as discussed in http://article.gmane.org/gmane.comp.emulators.kvm.devel/28649. Signed-off-by:
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nathan binkert authored
Two things needed fixing: 1) g++ does not allow a named structure type within an anonymous union and 2) Avoid name clash between two padding fields within the same struct by giving them different names as is done elsewhere in the header. Signed-off-by:
Nathan Binkert <nate@binkert.org> Signed-off-by:
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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:
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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:
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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:
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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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