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* Merge branch 'linux-next' of ↵Linus Torvalds2011-05-23
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (27 commits) PCI: Don't use dmi_name_in_vendors in quirk PCI: remove unused AER functions PCI/sysfs: move bus cpuaffinity to class dev_attrs PCI: add rescan to /sys/.../pci_bus/.../ PCI: update bridge resources to get more big ranges when allocating space (again) KVM: Use pci_store/load_saved_state() around VM device usage PCI: Add interfaces to store and load the device saved state PCI: Track the size of each saved capability data area PCI/e1000e: Add and use pci_disable_link_state_locked() x86/PCI: derive pcibios_last_bus from ACPI MCFG PCI: add latency tolerance reporting enable/disable support PCI: add OBFF enable/disable support PCI: add ID-based ordering enable/disable support PCI hotplug: acpiphp: assume device is in state D0 after powering on a slot. PCI: Set PCIE maxpayload for card during hotplug insertion PCI/ACPI: Report _OSC control mask returned on failure to get control x86/PCI: irq and pci_ids patch for Intel Panther Point DeviceIDs PCI: handle positive error codes PCI: check pci_vpd_pci22_wait() return PCI: Use ICH6_GPIO_EN in ich6_lpc_acpi_gpio ... Fix up trivial conflicts in include/linux/pci_ids.h: commit a6e5e2be4461 moved the intel SMBUS ID definitons to the i2c-i801.c driver.
| * x86/PCI: Remove dma32_reserve_bootmemYinghai Lu2011-05-10
| | | | | | | | | | | | | | | | | | | | | | This workaround holds a dma32 buffer at early boot to prevent later bootmem allocations from stealing it in the case of large RAM configs. Now that x86 is using memblock, and the nobootmem wrapper does top-down allocation, it's no longer necessary, so remove it. Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | Merge branch 'x86-apic-for-linus' of ↵Linus Torvalds2011-05-23
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, apic: Include module.h header in apic_flat_64.c x86, apic: Make apic drivers static x86, apic: Clean up bigsmp apic selection code x86, apic: Use .apicdrivers section for the apic drivers list x86, apic: Introduce .apicdrivers section to find the list of apic drivers x86, x2apic: Move the common bits to x2apic.h x86, x2apic: Minimize IPI register writes using cluster groups x86, x2apic: Track the x2apic cluster sibling map x86, x2apic: Remove duplicate code for IPI mask routines x86, apic: Use probe routines to simplify apic selection x86, ioapic: Consolidate mp_ioapic_routing[] into 'struct ioapic' x86, ioapic: Consolidate gsi routing info into 'struct ioapic' x86, ioapic: Consolidate mp_ioapics[] into 'struct ioapic' x86, ioapic: Consolidate ioapic_saved_data[] into 'struct ioapic' x86, ioapic: Add struct ioapic x86, ioapic: Remove duplicate code for saving/restoring RTEs x86, ioapic: Use ioapic_saved_data while enabling intr-remapping x86, ioapic: Allocate ioapic_saved_data early x86, ioapic: Fix potential resume deadlock
| * | x86, apic: Make apic drivers staticSuresh Siddha2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Apic probe now looks at the apic drivers listed in the .apicdrivers section. Remove apic_probe[] and make each apic driver static. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Tested-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: steiner@sgi.com Cc: gorcunov@openvz.org Cc: yinghai@kernel.org Link: http://lkml.kernel.org/r/20110521005526.341718626@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, apic: Clean up bigsmp apic selection codeSuresh Siddha2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make generic_bigsmp_probe() return struct apic *. This will avoid exporting apic_bigsmp, which will be consistent with others. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Tested-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: steiner@sgi.com Cc: gorcunov@openvz.org Cc: yinghai@kernel.org Link: http://lkml.kernel.org/r/20110521005526.252703851@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, apic: Introduce .apicdrivers section to find the list of apic driversSuresh Siddha2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will pave the way for each apic driver to be self-contained and eliminate the need for apic_probe[]. Order in which apic drivers are listed in the .apicdrivers section is important, as this determines the apic probe order. And this is enforced by the ordering of apic driver files in the Makefile and the macros apic_driver()/apic_drivers(). Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Tested-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: steiner@sgi.com Cc: gorcunov@openvz.org Cc: yinghai@kernel.org Link: http://lkml.kernel.org/r/20110521005526.068775085@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, x2apic: Move the common bits to x2apic.hCyrill Gorcunov2011-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To eliminate code duplication. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: steiner@sgi.com Cc: yinghai@kernel.org Link: http://lkml.kernel.org/r/20110519234637.591426753@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, ioapic: Consolidate gsi routing info into 'struct ioapic'Suresh Siddha2011-05-20
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: daniel.blueman@gmail.com Link: http://lkml.kernel.org/r/20110518233157.994002011@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, ioapic: Consolidate mp_ioapics[] into 'struct ioapic'Suresh Siddha2011-05-20
| | | | | | | | | | | | | | | | | | | | | Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: daniel.blueman@gmail.com Link: http://lkml.kernel.org/r/20110518233157.909013179@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, ioapic: Add struct ioapicSuresh Siddha2011-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce struct ioapic with nr_registers field. This will pave way for consolidating different MAX_IO_APICS arrays into it. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: daniel.blueman@gmail.com Link: http://lkml.kernel.org/r/20110518233157.744315519@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
| * | x86, ioapic: Use ioapic_saved_data while enabling intr-remappingSuresh Siddha2011-05-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Code flow for enabling interrupt-remapping was allocating/freeing buffers for saving/restoring io-apic RTE's. ioapic suspend/resume code uses boot time allocated ioapic_saved_data that is a perfect match for reuse here. This will remove the unnecessary allocation/free of the temporary buffers during suspend/resume of interrupt-remapping enabled platforms aswell as paving the way for further code consolidation. Tested-by: Daniel J Blueman <daniel.blueman@gmail.com> Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/20110518233157.574469296@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | | Merge branch 'kvm-updates/2.6.40' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds2011-05-23
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'kvm-updates/2.6.40' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (131 commits) KVM: MMU: Use ptep_user for cmpxchg_gpte() KVM: Fix kvm mmu_notifier initialization order KVM: Add documentation for KVM_CAP_NR_VCPUS KVM: make guest mode entry to be rcu quiescent state KVM: x86 emulator: Make jmp far emulation into a separate function KVM: x86 emulator: Rename emulate_grpX() to em_grpX() KVM: x86 emulator: Remove unused arg from emulate_pop() KVM: x86 emulator: Remove unused arg from writeback() KVM: x86 emulator: Remove unused arg from read_descriptor() KVM: x86 emulator: Remove unused arg from seg_override() KVM: Validate userspace_addr of memslot when registered KVM: MMU: Clean up gpte reading with copy_from_user() KVM: PPC: booke: add sregs support KVM: PPC: booke: save/restore VRSAVE (a.k.a. USPRG0) KVM: PPC: use ticks, not usecs, for exit timing KVM: PPC: fix exit accounting for SPRs, tlbwe, tlbsx KVM: PPC: e500: emulate SVR KVM: VMX: Cache vmcs segment fields KVM: x86 emulator: consolidate segment accessors KVM: VMX: Avoid reading %rip unnecessarily when handling exceptions ...
| * | | KVM: VMX: Cache vmcs segment fieldsAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the emulator now checks segment limits and access rights, it generates a lot more accesses to the vmcs segment fields. Undo some of the performance hit by cacheing those fields in a read-only cache (the entire cache is invalidated on any write, or on guest exit). Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: consolidate segment accessorsAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of separate accessors for the segment selector and cached descriptor, use one accessor for both. This simplifies the code somewhat. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: mmio_fault_cr2 is not usedGleb Natapov2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove unused variable mmio_fault_cr2. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: SVM: Get rid of x86_intercept_map::validAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | By reserving 0 as an invalid x86_intercept_stage, we no longer need to store a valid flag in x86_intercept_map. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: drop x86_emulate_ctxt::vcpuAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | No longer used. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: add new ->wbinvd() callbackAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | Instead of calling kvm_emulate_wbinvd() directly. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: add ->fix_hypercall() callbackAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | Artificial, but needed to remove direct calls to KVM. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: add new ->halt() callbackAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | Instead of reaching into vcpu internals. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: make emulate_invlpg() an emulator callbackAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | Removing direct calls to KVM. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: emulate CLTS internallyAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Avoid using ctxt->vcpu; we can do everything with ->get_cr() and ->set_cr(). A side effect is that we no longer activate the fpu on emulated CLTS; but that should be very rare. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: add and use new callbacks set_idt(), set_gdt()Avi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | Replacing direct calls to realmode_lgdt(), realmode_lidt(). Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: drop vcpu argument from intercept callbackAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | Making the emulator caller agnostic. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: drop vcpu argument from cr/dr/cpl/msr callbacksAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | Making the emulator caller agnostic. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: drop vcpu argument from segment/gdt/idt callbacksAvi Kivity2011-05-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Making the emulator caller agnostic. [Takuya Yoshikawa: fix typo leading to LDT failures] Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: drop vcpu argument from pio callbacksAvi Kivity2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Making the emulator caller agnostic. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: drop vcpu argument from memory read/write callbacksAvi Kivity2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Making the emulator caller agnostic. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: emulator: Use linearize() when fetching instructionsNelson Elhage2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since segments need to be handled slightly differently when fetching instructions, we add a __linearize helper that accepts a new 'fetch' boolean. [avi: fix oops caused by wrong segmented_address initialization order] Signed-off-by: Nelson Elhage <nelhage@ksplice.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: X86: Update last_guest_tsc in vcpu_putJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The last_guest_tsc is used in vcpu_load to adjust the tsc_offset since tsc-scaling is merged. So the last_guest_tsc needs to be updated in vcpu_put instead of the the last_host_tsc. This is fixed with this patch. Reported-by: Jan Kiszka <jan.kiszka@web.de> Tested-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: emulator: do not needlesly sync registers from emulator ctxt to vcpuGleb Natapov2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we sync registers back and forth before/after exiting to userspace for IO, but during IO device model shouldn't need to read/write the registers, so we can as well skip those sync points. The only exaception is broken vmware backdor interface. The new code sync registers content during IO only if registers are read from/written to by userspace in the middle of the IO operation and this almost never happens in practise. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| * | | KVM: X86: Implement userspace interface to set virtual_tsc_khzJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements two new vm-ioctls to get and set the virtual_tsc_khz if the machine supports tsc-scaling. Setting the tsc-frequency is only possible before userspace creates any vcpu. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: X86: Delegate tsc-offset calculation to architecture codeJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With TSC scaling in SVM the tsc-offset needs to be calculated differently. This patch propagates this calculation into the architecture specific modules so that this complexity can be handled there. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: X86: Implement call-back to propagate virtual_tsc_khzJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a call-back into the architecture code to allow the propagation of changes to the virtual tsc_khz of the vcpu. On SVM it updates the tsc_ratio variable, on VMX it does nothing. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: X86: Let kvm-clock report the right tsc frequencyJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes the kvm_guest_time_update function to use TSC frequency the guest actually has for updating its clock. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: SVM: Implement infrastructure for TSC_RATE_MSRJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enhances the kvm_amd module with functions to support the TSC_RATE_MSR which can be used to set a given tsc frequency for the guest vcpu. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: MMU: remove mmu_seq verification on pte update pathXiao Guangrong2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mmu_seq verification can be removed since we get the pfn in the protection of mmu_lock. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: SVM: Add checks for IO instructionsJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds code to check for IOIO intercepts on instructions decoded by the KVM instruction emulator. [avi: fix build error due to missing #define D2bvIP] Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: SVM: Add intercept checks for remaining twobyte instructionsJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds intercepts checks for the remaining twobyte instructions to the KVM instruction emulator. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: SVM: Add intercept check for accessing dr registersJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the intercept checks for instruction accessing the debug registers. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: SVM: Add intercept check for emulated cr accessesJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds all necessary intercept checks for instructions that access the crX registers. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86: Add x86 callback for intercept checkJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a callback into kvm_x86_ops so that svm and vmx code can do intercept checks on emulated instructions. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: Add flag to check for protected mode instructionsJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a flag for the opcoded to tag instruction which are only recognized in protected mode. The necessary check is added too. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: Add check_perm callbackJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a check_perm callback for each opcode into the instruction emulator. This will be used to do all necessary permission checks on instructions before checking whether they are intercepted or not. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: Don't write-back cpu-state on X86EMUL_INTERCEPTEDJoerg Roedel2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch prevents the changed CPU state to be written back when the emulator detected that the instruction was intercepted by the guest. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: add SVM interceptsAvi Kivity2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add intercept codes for instructions defined by SVM as interceptable. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: add framework for instruction interceptsAvi Kivity2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When running in guest mode, certain instructions can be intercepted by hardware. This also holds for nested guests running on emulated virtualization hardware, in particular instructions emulated by kvm itself. This patch adds a framework for intercepting instructions. If an instruction is marked for interception, and if we're running in guest mode, a callback is called to check whether an intercept is needed or not. The callback is called at three points in time: immediately after beginning execution, after checking privilge exceptions, and after checking memory exception. This suits the different interception points defined for different instructions and for the various virtualization instruction sets. In addition, a new X86EMUL_INTERCEPT is defined, which any callback or memory access may define, allowing the more complicated intercepts to be implemented in existing callbacks. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: SSE supportAvi Kivity2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add support for marking an instruction as SSE, switching registers used to the SSE register file. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: define callbacks for using the guest fpu within the emulatorAvi Kivity2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | Needed for emulating fpu instructions. Signed-off-by: Avi Kivity <avi@redhat.com>
| * | | KVM: x86 emulator: do not munge rep prefixAvi Kivity2011-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we store a rep prefix as 1 or 2 depending on whether it is a REPE or REPNE. Since sse instructions depend on the prefix value, store it as the original opcode to simplify things further on. Signed-off-by: Avi Kivity <avi@redhat.com>
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