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2010-05-18Merge branch 'x86-mrst-for-linus' of ↵Linus Torvalds3-2/+7
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mrst-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, mrst: add nop functions to x86_init mpparse functions x86, mrst, pci: return 0 for non-present pci bars x86: Avoid check hlt for newer cpus
2010-05-18Merge branch 'x86-mm-for-linus' of ↵Linus Torvalds1-0/+48
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86-64: Combine SRAT regions when possible
2010-05-18Merge branch 'x86-microcode-for-linus' of ↵Linus Torvalds2-8/+18
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/microcode: Use nonseekable_open() x86: Improve Intel microcode loader performance
2010-05-18Merge branch 'core-hweight-for-linus' of ↵Linus Torvalds4-4/+75
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-hweight-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, hweight: Use a 32-bit popcnt for __arch_hweight32() arch, hweight: Fix compilation errors x86: Add optimized popcnt variants bitops: Optimize hweight() by making use of compile-time evaluation
2010-05-18Merge branch 'x86-irq-for-linus' of ↵Linus Torvalds7-164/+139
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, acpi/irq: Define gsi_end when X86_IO_APIC is undefined x86, irq: Kill io_apic_renumber_irq x86, acpi/irq: Handle isa irqs that are not identity mapped to gsi's. x86, ioapic: Simplify probe_nr_irqs_gsi. x86, ioapic: Optimize pin_2_irq x86, ioapic: Move nr_ioapic_registers calculation to mp_register_ioapic. x86, ioapic: In mpparse use mp_register_ioapic x86, ioapic: Teach mp_register_ioapic to compute a global gsi_end x86, ioapic: Fix the types of gsi values x86, ioapic: Fix io_apic_redir_entries to return the number of entries. x86, ioapic: Only export mp_find_ioapic and mp_find_ioapic_pin in io_apic.h x86, acpi/irq: Generalize mp_config_acpi_legacy_irqs x86, acpi/irq: Fix acpi_sci_ioapic_setup so it has both bus_irq and gsi x86, acpi/irq: pci device dev->irq is an isa irq not a gsi x86, acpi/irq: Teach acpi_get_override_irq to take a gsi not an isa_irq x86, acpi/irq: Introduce apci_isa_irq_to_gsi
2010-05-18Merge branch 'x86-fpu-for-linus' of ↵Linus Torvalds19-248/+308
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, fpu: Use static_cpu_has() to implement use_xsave() x86: Add new static_cpu_has() function using alternatives x86, fpu: Use the proper asm constraint in use_xsave() x86, fpu: Unbreak FPU emulation x86: Introduce 'struct fpu' and related API x86: Eliminate TS_XSAVE x86-32: Don't set ignore_fpu_irq in simd exception x86: Merge kernel_math_error() into math_error() x86: Merge simd_math_error() into math_error() x86-32: Rework cache flush denied handler Fix trivial conflict in arch/x86/kernel/process.c
2010-05-18Merge branch 'x86-cpu-for-linus' of ↵Linus Torvalds19-191/+516
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, hypervisor: add missing <linux/module.h> Modify the VMware balloon driver for the new x86_hyper API x86, hypervisor: Export the x86_hyper* symbols x86: Clean up the hypervisor layer x86, HyperV: fix up the license to mshyperv.c x86: Detect running on a Microsoft HyperV system x86, cpu: Make APERF/MPERF a normal table-driven flag x86, k8: Fix build error when K8_NB is disabled x86, cacheinfo: Disable index in all four subcaches x86, cacheinfo: Make L3 cache info per node x86, cacheinfo: Reorganize AMD L3 cache structure x86, cacheinfo: Turn off L3 cache index disable feature in virtualized environments x86, cacheinfo: Unify AMD L3 cache index disable checking cpufreq: Unify sysfs attribute definition macros powernow-k8: Fix frequency reporting x86, cpufreq: Add APERF/MPERF support for AMD processors x86: Unify APERF/MPERF support powernow-k8: Add core performance boost support x86, cpu: Add AMD core boosting feature flag to /proc/cpuinfo Fix up trivial conflicts in arch/x86/kernel/cpu/intel_cacheinfo.c and drivers/cpufreq/cpufreq_ondemand.c
2010-05-18Merge branch 'x86-cleanups-for-linus' of ↵Linus Torvalds4-38/+16
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Clean up arch/x86/Kconfig* x86-64: Don't export init_level4_pgt
2010-05-18Merge branch 'x86-atomic-for-linus' of ↵Linus Torvalds10-296/+720
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-atomic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Fix LOCK_PREFIX_HERE for uniprocessor build x86, atomic64: In selftest, distinguish x86-64 from 586+ x86-32: Fix atomic64_inc_not_zero return value convention lib: Fix atomic64_inc_not_zero test lib: Fix atomic64_add_unless return value convention x86-32: Fix atomic64_add_unless return value convention lib: Fix atomic64_add_unless test x86: Implement atomic[64]_dec_if_positive() lib: Only test atomic64_dec_if_positive on archs having it x86-32: Rewrite 32-bit atomic64 functions in assembly lib: Add self-test for atomic64_t x86-32: Allow UP/SMP lock replacement in cmpxchg64 x86: Add support for lock prefix in alternatives
2010-05-18Merge branch 'x86-asm-for-linus' of ↵Linus Torvalds8-29/+71
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Use .cfi_sections for assembly code x86-64: Reduce SMP locks table size x86, asm: Introduce and use percpu_inc()
2010-05-18Merge branch 'perf-core-for-linus' of ↵Linus Torvalds41-3447/+3329
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (311 commits) perf tools: Add mode to build without newt support perf symbols: symbol inconsistency message should be done only at verbose=1 perf tui: Add explicit -lslang option perf options: Type check all the remaining OPT_ variants perf options: Type check OPT_BOOLEAN and fix the offenders perf options: Check v type in OPT_U?INTEGER perf options: Introduce OPT_UINTEGER perf tui: Add workaround for slang < 2.1.4 perf record: Fix bug mismatch with -c option definition perf options: Introduce OPT_U64 perf tui: Add help window to show key associations perf tui: Make <- exit menus too perf newt: Add single key shortcuts for zoom into DSO and threads perf newt: Exit browser unconditionally when CTRL+C, q or Q is pressed perf newt: Fix the 'A'/'a' shortcut for annotate perf newt: Make <- exit the ui_browser x86, perf: P4 PMU - fix counters management logic perf newt: Make <- zoom out filters perf report: Report number of events, not samples perf hist: Clarify events_stats fields usage ... Fix up trivial conflicts in kernel/fork.c and tools/perf/builtin-record.c
2010-05-18Merge branch 'oprofile-for-linus' of ↵Linus Torvalds5-291/+321
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'oprofile-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (24 commits) oprofile/x86: make AMD IBS hotplug capable oprofile/x86: notify cpus only when daemon is running oprofile/x86: reordering some functions oprofile/x86: stop disabled counters in nmi handler oprofile/x86: protect cpu hotplug sections oprofile/x86: remove CONFIG_SMP macros oprofile/x86: fix uninitialized counter usage during cpu hotplug oprofile/x86: remove duplicate IBS capability check oprofile/x86: move IBS code oprofile/x86: return -EBUSY if counters are already reserved oprofile/x86: moving shutdown functions oprofile/x86: reserve counter msrs pairwise oprofile/x86: rework error handler in nmi_setup() oprofile: update file list in MAINTAINERS file oprofile: protect from not being in an IRQ context oprofile: remove double ring buffering ring-buffer: Add lost event count to end of sub buffer tracing: Show the lost events in the trace_pipe output ring-buffer: Add place holder recording of dropped events tracing: Fix compile error in module tracepoints when MODULE_UNLOAD not set ...
2010-05-18Merge branch 'core-locking-for-linus' of ↵Linus Torvalds3-10/+10
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: lockdep: Reduce stack_trace usage lockdep: No need to disable preemption in debug atomic ops lockdep: Actually _dec_ in debug_atomic_dec lockdep: Provide off case for redundant_hardirqs_on increment lockdep: Simplify debug atomic ops lockdep: Fix redundant_hardirqs_on incremented with irqs enabled lockstat: Make lockstat counting per cpu i8253: Convert i8253_lock to raw_spinlock
2010-05-18Merge branch 'core-iommu-for-linus' of ↵Linus Torvalds3-71/+166
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/amd-iommu: Add amd_iommu=off command line option iommu-api: Remove iommu_{un}map_range functions x86/amd-iommu: Implement ->{un}map callbacks for iommu-api x86/amd-iommu: Make amd_iommu_iova_to_phys aware of multiple page sizes x86/amd-iommu: Make iommu_unmap_page and fetch_pte aware of page sizes x86/amd-iommu: Make iommu_map_page and alloc_pte aware of page sizes kvm: Change kvm_iommu_map_pages to map large pages VT-d: Change {un}map_range functions to implement {un}map interface iommu-api: Add ->{un}map callbacks to iommu_ops iommu-api: Add iommu_map and iommu_unmap functions iommu-api: Rename ->{un}map function pointers to ->{un}map_range
2010-05-18perf, x86: P4 PMU -- fix typo in unflagged NMI handlingCyrill Gorcunov1-1/+1
Tested-by: Lin Ming <[email protected]> Signed-off-by: Cyrill Gorcunov <[email protected]> Cc: Cyrill Gorcunov <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-05-18perf, x86: P4 PMU -- handle unflagged eventsCyrill Gorcunov1-16/+16
It might happen that an event can overflow without the proper overflow flag set. Check the sign bit in the raw counter value to solve this problem. Tested-by: Lin Ming <[email protected]> Signed-off-by: Cyrill Gorcunov <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Cc: Cyrill Gorcunov <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>
2010-05-17x86, hweight: Use a 32-bit popcnt for __arch_hweight32()H. Peter Anvin1-4/+6
Use a 32-bit popcnt instruction for __arch_hweight32(), even on x86-64. Even though the input register will *usually* be zero-extended due to the standard operation of the hardware, it isn't necessarily so if the input value was the result of truncating a 64-bit operation. Note: the POPCNT32 variant used on x86-64 has a technically unnecessary REX prefix to make it five bytes long, the same as a CALL instruction, therefore avoiding an unnecessary NOP. Reported-by: Linus Torvalds <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> Cc: Borislav Petkov <[email protected]> LKML-Reference: <[email protected]>
2010-05-17x86, hpet: Add reference to chipset erratum documentation for ↵Andreas Herrmann1-0/+3
disable-hpet-msi-quirk (At the moment the "SB700 Family Product Errata" document is available at http://support.amd.com/us/Embedded_TechDocs/46837.pdf) Signed-off-by: Andreas Herrmann <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]>
2010-05-17IPC driver for Intel Mobile Internet Device (MID) platformsSreedhara DS1-0/+55
The IPC (inter processor communications) is used to provide the communications between kernel and system control units on some embedded Intel x86 platforms. (Various bits of clean up and restructuring by Alan Cox) Signed-off-by: Sreedhara DS <[email protected]> Signed-off-by: Alan Cox <[email protected]>
2010-05-17atomic_t: Cast to volatile when accessing atomic variablesAnton Blanchard2-2/+2
In preparation for removing volatile from the atomic_t definition, this patch adds a volatile cast to all the atomic read functions. Signed-off-by: Anton Blanchard <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-05-17KVM: MMU: fix sp->unsync type error in trace event definitionGui Jianfeng1-1/+1
sp->unsync is bool now, so update trace event declaration. Signed-off-by: Gui Jianfeng <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: SVM: Handle MCE intercepts always on host levelJoerg Roedel1-0/+1
This patch prevents MCE intercepts from being propagated into the L1 guest if they happened in an L2 guest. Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: x86: Allow marking an exception as reinjectedJoerg Roedel4-12/+32
This patch adds logic to kvm/x86 which allows to mark an injected exception as reinjected. This allows to remove an ugly hack from svm_complete_interrupts that prevented exceptions from being reinjected at all in the nested case. The hack was necessary because an reinjected exception into the nested guest could cause a nested vmexit emulation. But reinjected exceptions must not intercept. The downside of the hack is that a exception that in injected could get lost. This patch fixes the problem and puts the code for it into generic x86 files because. Nested-VMX will likely have the same problem and could reuse the code. Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: SVM: Report emulated SVM features to userspaceJoerg Roedel1-0/+10
This patch implements the reporting of the emulated SVM features to userspace instead of the real hardware capabilities. Every real hardware capability needs emulation in nested svm so the old behavior was broken. Cc: [email protected] Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: x86: Add callback to let modules decide over some supported cpuid bitsJoerg Roedel4-0/+17
This patch adds the get_supported_cpuid callback to kvm_x86_ops. It will be used in do_cpuid_ent to delegate the decission about some supported cpuid bits to the architecture modules. Cc: [email protected] Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: SVM: Propagate nested entry failure into guest hypervisorJoerg Roedel1-0/+4
This patch implements propagation of a failes guest vmrun back into the guest instead of killing the whole guest. Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: SVM: Sync cr0 and cr3 to kvm state before nested handlingJoerg Roedel1-9/+6
This patch syncs cr0 and cr3 from the vmcb to the kvm state before nested intercept handling is done. This allows to simplify the vmexit path. Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: SVM: Make sure rip is synced to vmcb before nested vmexitJoerg Roedel1-4/+4
This patch fixes a bug where a nested guest always went over the same instruction because the rip was not advanced on a nested vmexit. Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: SVM: Fix nested nmi handlingJoerg Roedel1-7/+9
The patch introducing nested nmi handling had a bug. The check does not belong to enable_nmi_window but must be in nmi_allowed. This patch fixes this. Signed-off-by: Joerg Roedel <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17Merge remote branch 'tip/perf/core'Avi Kivity2-6/+18
Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: VMX: free vpid when fail to create vcpuLai Jiangshan1-4/+12
Fix bug of the exception path, free allocated vpid when fail to create vcpu. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: MMU: cleanup for function unaccount_shadowed()Wei Yongjun1-1/+1
Since gfn is not changed in the for loop, we do not need to call gfn_to_memslot_unaliased() under the loop, and it is safe to move it out. Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: Get rid of dead function gva_to_page()Gui Jianfeng1-14/+0
Nobody use gva_to_page() anymore, get rid of it. Signed-off-by: Gui Jianfeng <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: MMU: Remove unused varialbe in rmap_next()Gui Jianfeng1-2/+0
Remove unused varialbe in rmap_next() Signed-off-by: Gui Jianfeng <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: MMU: Make use of is_large_pte() in walkerGui Jianfeng1-2/+2
Make use of is_large_pte() instead of checking PT_PAGE_SIZE_MASK bit directly. Signed-off-by: Gui Jianfeng <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: MMU: Move sync_page() first pte address calculation out of loopGui Jianfeng1-2/+4
Move first pte address calculation out of loop to save some cycles. Signed-off-by: Gui Jianfeng <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: MMU: Drop cr4.pge from shadow page roleAvi Kivity3-4/+1
Since commit bf47a760f66ad, we no longer handle ptes with the global bit set specially, so there is no reason to distinguish between shadow pages created with cr4.gpe set and clear. Such tracking is expensive when the guest toggles cr4.pge, so drop it. Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: use the correct RCU API for PROVE_RCU=yLai Jiangshan4-6/+14
The RCU/SRCU API have already changed for proving RCU usage. I got the following dmesg when PROVE_RCU=y because we used incorrect API. This patch coverts rcu_deference() to srcu_dereference() or family API. =================================================== [ INFO: suspicious rcu_dereference_check() usage. ] --------------------------------------------------- arch/x86/kvm/mmu.c:3020 invoked rcu_dereference_check() without protection! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 2 locks held by qemu-system-x86/8550: #0: (&kvm->slots_lock){+.+.+.}, at: [<ffffffffa011a6ac>] kvm_set_memory_region+0x29/0x50 [kvm] #1: (&(&kvm->mmu_lock)->rlock){+.+...}, at: [<ffffffffa012262d>] kvm_arch_commit_memory_region+0xa6/0xe2 [kvm] stack backtrace: Pid: 8550, comm: qemu-system-x86 Not tainted 2.6.34-rc4-tip-01028-g939eab1 #27 Call Trace: [<ffffffff8106c59e>] lockdep_rcu_dereference+0xaa/0xb3 [<ffffffffa012f6c1>] kvm_mmu_calculate_mmu_pages+0x44/0x7d [kvm] [<ffffffffa012263e>] kvm_arch_commit_memory_region+0xb7/0xe2 [kvm] [<ffffffffa011a5d7>] __kvm_set_memory_region+0x636/0x6e2 [kvm] [<ffffffffa011a6ba>] kvm_set_memory_region+0x37/0x50 [kvm] [<ffffffffa015e956>] vmx_set_tss_addr+0x46/0x5a [kvm_intel] [<ffffffffa0126592>] kvm_arch_vm_ioctl+0x17a/0xcf8 [kvm] [<ffffffff810a8692>] ? unlock_page+0x27/0x2c [<ffffffff810bf879>] ? __do_fault+0x3a9/0x3e1 [<ffffffffa011b12f>] kvm_vm_ioctl+0x364/0x38d [kvm] [<ffffffff81060cfa>] ? up_read+0x23/0x3d [<ffffffff810f3587>] vfs_ioctl+0x32/0xa6 [<ffffffff810f3b19>] do_vfs_ioctl+0x495/0x4db [<ffffffff810e6b2f>] ? fget_light+0xc2/0x241 [<ffffffff810e416c>] ? do_sys_open+0x104/0x116 [<ffffffff81382d6d>] ? retint_swapgs+0xe/0x13 [<ffffffff810f3ba6>] sys_ioctl+0x47/0x6a [<ffffffff810021db>] system_call_fastpath+0x16/0x1b Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Avi Kivity <[email protected]>
2010-05-17Merge branch 'perf'Avi Kivity39-3265/+3187
Signed-off-by: Avi Kivity <[email protected]>
2010-05-17KVM: MMU: cleanup for hlist walk restartXiao Guangrong1-5/+10
Quote from Avi: |Just change the assignment to a 'goto restart;' please, |I don't like playing with list_for_each internals. Signed-off-by: Xiao Guangrong <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: prevent spurious exit to userspace during task switch emulation.Gleb Natapov2-4/+14
If kvm_task_switch() fails code exits to userspace without specifying exit reason, so the previous exit reason is reused by userspace. Fix this by specifying exit reason correctly. Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: MMU: remove unused parameter in mmu_parent_walk()Xiao Guangrong1-13/+11
'vcpu' is unused, remove it Signed-off-by: Xiao Guangrong <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: MMU: reduce 'struct kvm_mmu_page' sizeXiao Guangrong1-2/+2
Define 'multimapped' as 'bool'. Signed-off-by: Xiao Guangrong <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: MMU: remove unused struct kvm_unsync_walkXiao Guangrong1-5/+0
Remove 'struct kvm_unsync_walk' since it's not used. Signed-off-by: Xiao Guangrong <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: fix emulator_task_switch() return value.Gleb Natapov2-4/+5
emulator_task_switch() should return -1 for failure and 0 for success to the caller, just like x86_emulate_insn() does. Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: MMU: Replace role.glevels with role.cr4_paeAvi Kivity3-9/+10
There is no real distinction between glevels=3 and glevels=4; both have exactly the same format and the code is treated exactly the same way. Drop role.glevels and replace is with role.cr4_pae (which is meaningful). This simplifies the code a bit. As a side effect, it allows sharing shadow page tables between pae and longmode guest page tables at the same guest page. Signed-off-by: Avi Kivity <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: x86: Push potential exception error code on task switchesJan Kiszka7-10/+48
When a fault triggers a task switch, the error code, if existent, has to be pushed on the new task's stack. Implement the missing bits. Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: x86: Terminate early if task_switch_16/32 failedJan Kiszka1-0/+2
Stop the switch immediately if task_switch_16/32 returned an error. Only if that step succeeded, the switch should actually take place and update any register states. Signed-off-by: Jan Kiszka <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: x86: get rid of mmu_only parameter in emulator_write_emulated()Gleb Natapov1-25/+11
We can call kvm_mmu_pte_write() directly from emulator_cmpxchg_emulated() instead of passing mmu_only down to emulator_write_emulated_onepage() and call it there. Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
2010-05-17KVM: move DR register access handling into generic codeGleb Natapov4-134/+93
Currently both SVM and VMX have their own DR handling code. Move it to x86.c. Acked-by: Jan Kiszka <[email protected]> Signed-off-by: Gleb Natapov <[email protected]> Signed-off-by: Marcelo Tosatti <[email protected]>
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