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2008-07-21Merge branch 'x86/paravirt-spinlocks' into x86/for-linusIngo Molnar3-1/+197
2008-07-21Merge branches 'x86/urgent', 'x86/amd-iommu', 'x86/apic', 'x86/cleanups', ↵Ingo Molnar89-1426/+2944
'x86/core', 'x86/cpu', 'x86/fixmap', 'x86/gart', 'x86/kprobes', 'x86/memtest', 'x86/modules', 'x86/nmi', 'x86/pat', 'x86/reboot', 'x86/setup', 'x86/step', 'x86/unify-pci', 'x86/uv', 'x86/xen' and 'xen-64bit' into x86/for-linus
2008-07-21Merge branch 'linus' into xen-64bitIngo Molnar15-386/+691
2008-07-21Merge branch 'linus' into x86/paravirt-spinlocksIngo Molnar15-386/+691
2008-07-21x86: remove extra calling to get ext cpuid levelYinghai Lu1-1/+0
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-21x86: use setup_clear_cpu_cap() when disabling the lapicYinghai Lu3-9/+2
... so don't need to call clear_cpu_cap again in early_identify_cpu, and could use cleared_cpu_caps like other places. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-21Merge branch 'linus' into x86/urgentIngo Molnar15-386/+691
2008-07-20KVM: MMU: Fix potential race setting upper shadow ptes on nonpae hostsAvi Kivity1-3/+4
The direct mapped shadow code (used for real mode and two dimensional paging) sets upper-level ptes using direct assignment rather than calling set_shadow_pte(). A nonpae host will split this into two writes, which opens up a race if another vcpu accesses the same memory area. Fix by calling set_shadow_pte() instead of assigning directly. Noticed by Izik Eidus. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: emulate clflushGlauber Costa1-1/+3
If the guest issues a clflush in a mmio address, the instruction can trap into the hypervisor. Currently, we do not decode clflush properly, causing the guest to hang. This patch fixes this emulating clflush (opcode 0f ae). Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: improve invalid shadow root page handlingMarcelo Tosatti1-1/+4
Harden kvm_mmu_zap_page() against invalid root pages that had been shadowed from memslots that are gone. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: nuke shadowed pgtable pages and ptes on memslot destructionMarcelo Tosatti1-0/+5
Flush the shadow mmu before removing regions to avoid stale entries. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Prefix some x86 low level function with kvm_, to avoid namespace issuesAvi Kivity3-27/+27
Fixes compilation with CONFIG_VMI enabled. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: check injected pic irq within valid pic irqsBen-Ami Yassour2-2/+6
Check that an injected pic irq is between 0 and 15. Signed-off-by: Ben-Ami Yassour <benami@il.ibm.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: Fix HLT instructionMohammed Gamal1-1/+1
This patch fixes issue encountered with HLT instruction under FreeDOS's HIMEM XMS Driver. The HLT instruction jumped directly to the done label and skips updating the EIP value, therefore causing the guest to spin endlessly on the same instruction. The patch changes the instruction so that it writes back the updated EIP value. Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Apply the kernel sigmask to vcpus blocked due to being uninitializedAvi Kivity1-5/+5
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Add ept_sync_context in flush_tlbSheng Yang1-0/+3
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: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: mmu_shrink: kvm_mmu_zap_page requires slots_lock to be heldMarcelo Tosatti1-0/+3
kvm_mmu_zap_page() needs slots lock held (rmap_remove->gfn_to_memslot, for example). Since kvm_lock spinlock is held in mmu_shrink(), do a non-blocking down_read_trylock(). Untested. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20x86: KVM guest: make kvm_smp_prepare_boot_cpu() staticAdrian Bunk1-1/+1
This patch makes the needlessly global kvm_smp_prepare_boot_cpu() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: SVM: fix suspend/resume supportJoerg Roedel1-12/+22
On suspend the svm_hardware_disable function is called which frees all svm_data variables. On resume they are not re-allocated. This patch removes the deallocation of svm_data from the hardware_disable function to the hardware_unsetup function which is not called on suspend. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: move slots_lock acquision down to vapic_exitMarcelo Tosatti1-2/+2
There is no need to grab slots_lock if the vapic_page will not be touched. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Fake emulate Intel perfctr MSRsChris Lalancette1-0/+12
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: Chris Lalancette <clalance@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Fix a wrong usage of vmcs_configSheng Yang1-2/+2
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: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: Fix printk formatAvi Kivity1-1/+1
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: When debug is enabled, make it a run-time parameterAvi Kivity1-1/+2
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: lazily evaluate segment registersAvi Kivity2-60/+57
Instead of prefetching all segment bases before emulation, read them at the last moment. Since most of them are unneeded, we save some cycles on Intel machines where this is a bit expensive. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: avoid segment base adjust for leaAvi Kivity1-1/+1
Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: simplify rip relative decodingAvi Kivity1-18/+5
rip relative decoding is relative to the instruction pointer of the next instruction; by moving address adjustment until after decoding is complete, we remove the need to determine the instruction size. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: simplify r/m decodingAvi Kivity1-13/+4
Consolidate the duplicated code when not in any special case. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: simplify sib decodingAvi Kivity1-16/+4
Instead of using sparse switches, use simpler if/else sequences. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: handle undecoded rex.b with r/m = 5 in certain casesAvi Kivity1-0/+2
x86_64 does not decode rex.b in certain cases, where the r/m field = 5. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: emulate nop and xchg reg, acc (opcodes 0x90 - 0x97)Mohammed Gamal1-2/+15
Signed-off-by: Mohammed Gamal <m.gamal005@gmail.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Use printk_rlimit() instead of reporting emulation failures just onceAvi Kivity1-3/+1
Emulation failure reports are useful, so allow more than one per the lifetime of the module. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Do not calculate linear rip in emulation failure reportGlauber Costa1-2/+2
If we're not gonna do anything (case in which failure is already reported), we do not need to even bother with calculating the linear rip. Signed-off-by: Glauber Costa <gcosta@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: only abort guest entry if timer count goes from 0->1Marcelo Tosatti2-9/+6
Only abort guest entry if the timer count went from 0->1, since for 1->2 or larger the bit will either be set already or a timer irq will have been injected. Using atomic_inc_and_test() for it also introduces an SMP barrier to the LAPIC version (thought it was unecessary because of timer migration, but guest can be scheduled to a different pCPU between exit and kvm_vcpu_block(), so there is the possibility for a race). Noticed by Avi. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Add coalesced MMIO support (x86 part)Laurent Vivier2-1/+5
This patch enables coalesced MMIO for x86 architecture. It defines KVM_MMIO_PAGE_OFFSET and KVM_CAP_COALESCED_MMIO. It enables the compilation of coalesced_mmio.c. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: kvm_io_device: extend in_range() to manage len and write attributeLaurent Vivier4-15/+25
Modify member in_range() of structure kvm_io_device to pass length and the type of the I/O (write or read). This modification allows to use kvm_io_device with coalesced MMIO. Signed-off-by: Laurent Vivier <Laurent.Vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: Avoid page prefetch on SVMAvi Kivity1-1/+4
SVM cannot benefit from page prefetching since guest page fault bypass cannot by made to work there. Avoid accessing the guest page table in this case. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: Move nonpaging_prefetch_page()Avi Kivity1-9/+9
In preparation for next patch. No code change. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: implement 'push imm' (opcode 0x68)Avi Kivity1-1/+2
Encountered in FC6 boot sequence, now that we don't force ss.rpl = 0 during the protected mode transition. Not really necessary, but nice to have. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: simplify push imm8 emulationAvi Kivity1-3/+1
Instead of fetching the data explicitly, use SrcImmByte. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MMU: Optimize prefetch_page()Avi Kivity1-13/+15
Instead of reading each pte individually, read 256 bytes worth of ptes and batch process them. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: Add support for mov r, sreg (0x8c) instructionGuillaume Thouvenin1-1/+14
Add support for mov r, sreg (0x8c) instruction Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: Add support for mov seg, r (0x8e) instructionGuillaume Thouvenin1-1/+24
Add support for mov r, sreg (0x8c) instruction. [avi: drop the sreg decoding table in favor of 1:1 encoding] Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: adds support to mov r,imm (opcode 0xb8) instructionGuillaume Thouvenin1-1/+4
Add support to mov r, imm (0xb8) instruction. Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: add support for jmp far 0xeaGuillaume Thouvenin1-2/+29
Add support for jmp far (opcode 0xea) instruction. Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: x86 emulator: Update c->dst.bytes in decode instructionGuillaume Thouvenin1-0/+1
Update c->dst.bytes in decode instruction instead of instruction itself. It's needed because if c->dst.bytes is equal to 0, the instruction is not emulated. Signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: Prefixes segment functions that will be exported with "kvm_"Guillaume Thouvenin1-39/+39
Prefixes functions that will be exported with kvm_. We also prefixed set_segment() even if it still static to be coherent. signed-off-by: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net> Signed-off-by: Laurent Vivier <laurent.vivier@bull.net> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: MTRR supportAvi Kivity1-4/+48
Add emulation for the memory type range registers, needed by VMware esx 3.5, and by pci device assignment. Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: VMX: Enable NMI with in-kernel irqchipSheng Yang3-19/+118
Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-07-20KVM: IOAPIC/LAPIC: Enable NMI supportSheng Yang2-1/+8
[avi: fix ia64 build breakage] Signed-off-by: Sheng Yang <sheng.yang@intel.com> Signed-off-by: Avi Kivity <avi@qumranet.com>
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-14 16:43:50 +0300