- 10 6月, 2009 30 次提交
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由 Avi Kivity 提交于
Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Instead of 'enable_vpid=1', use a simple 'vpid=1'. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
It is a static vmx-specific function. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Useful to see how the module was loaded. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
The prioritized bit vector manipulation functions are useful in both vmx and svm. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
svm_do_inject_vector() reimplements pop_irq(). Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Amit Shah 提交于
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: NAmit Shah <amit.shah@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
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: NGleb Natapov <gleb@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Sheng Yang 提交于
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: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Hannes Eder 提交于
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: NHannes Eder <hannes@hanneseder.net> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
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: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
On SN2 do not pass down the real ITC frequency, but rather patch the values to match the SN2 RTC frequency. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
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: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Jes Sorensen 提交于
On SN2, map in the SN2 RTC registers to the VMM module, needed for ITC emulation. Signed-off-by: NJes Sorensen <jes@sgi.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Gleb Natapov 提交于
Deliver interrupt during destination matching loop. Signed-off-by: NGleb Natapov <gleb@redhat.com> Acked-by: NXiantao Zhang <xiantao.zhang@intel.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Gleb Natapov 提交于
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: NGleb Natapov <gleb@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Gleb Natapov 提交于
Use kvm_apic_match_dest() in kvm_get_intr_delivery_bitmask() instead of duplicating the same code. Use kvm_get_intr_delivery_bitmask() in apic_send_ipi() to figure out ipi destination instead of reimplementing the logic. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Gleb Natapov 提交于
Get rid of ioapic_inj_irq() and ioapic_inj_nmi() functions. Signed-off-by: NGleb Natapov <gleb@redhat.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Joerg Roedel 提交于
There is no reason to update the shadow pte here because the guest pte is only changed to dirty state. Signed-off-by: NJoerg Roedel <joerg.roedel@amd.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Yang Zhang 提交于
Modify the arg of kvm_get_lowest_prio_vcpu(). Make it consistent with its declaration. Signed-off-by: NYang Zhang <yang.zhang@intel.com> Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
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由 Marcelo Tosatti 提交于
Hide the internals of vcpu awakening / injection from the in-kernel emulated timers. This makes future changes in this logic easier and decreases the distance to more generic timer handling. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Marcelo Tosatti 提交于
We can infer elapsed time from hrtimer_expires_remaining. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Marcelo Tosatti 提交于
Unused. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Marcelo Tosatti 提交于
Skip the test which checks if the PIT is properly routed when using the IOAPIC, aimed at buggy hardware. Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Matt T. Yourst 提交于
This issue just appeared in kvm-84 when running on 2.6.28.7 (x86-64) with PREEMPT enabled. We're getting syslog warnings like this many (but not all) times qemu tells KVM to run the VCPU: BUG: using smp_processor_id() in preemptible [00000000] code: qemu-system-x86/28938 caller is kvm_arch_vcpu_ioctl_run+0x5d1/0xc70 [kvm] Pid: 28938, comm: qemu-system-x86 2.6.28.7-mtyrel-64bit Call Trace: debug_smp_processor_id+0xf7/0x100 kvm_arch_vcpu_ioctl_run+0x5d1/0xc70 [kvm] ? __wake_up+0x4e/0x70 ? wake_futex+0x27/0x40 kvm_vcpu_ioctl+0x2e9/0x5a0 [kvm] enqueue_hrtimer+0x8a/0x110 _spin_unlock_irqrestore+0x27/0x50 vfs_ioctl+0x31/0xa0 do_vfs_ioctl+0x74/0x480 sys_futex+0xb4/0x140 sys_ioctl+0x99/0xa0 system_call_fastpath+0x16/0x1b As it turns out, the call trace is messed up due to gcc's inlining, but I isolated the problem anyway: kvm_write_guest_time() is being used in a non-thread-safe manner on preemptable kernels. Basically kvm_write_guest_time()'s body needs to be surrounded by preempt_disable() and preempt_enable(), since the kernel won't let us query any per-CPU data (indirectly using smp_processor_id()) without preemption disabled. The attached patch fixes this issue by disabling preemption inside kvm_write_guest_time(). [marcelo: surround only __get_cpu_var calls since the warning is harmless] Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Sheng Yang 提交于
This patch finally enable MSI-X. What we need for MSI-X: 1. Intercept one page in MMIO region of device. So that we can get guest desired MSI-X table and set up the real one. Now this have been done by guest, and transfer to kernel using ioctl KVM_SET_MSIX_NR and KVM_SET_MSIX_ENTRY. 2. Information for incoming interrupt. Now one device can have more than one interrupt, and they are all handled by one workqueue structure. So we need to identify them. The previous patch enable gsi_msg_pending_bitmap get this done. 3. Mapping from host IRQ to guest gsi as well as guest gsi to real MSI/MSI-X message address/data. We used same entry number for the host and guest here, so that it's easy to find the correlated guest gsi. What we lack for now: 1. The PCI spec said nothing can existed with MSI-X table in the same page of MMIO region, except pending bits. The patch ignore pending bits as the first step (so they are always 0 - no pending). 2. The PCI spec allowed to change MSI-X table dynamically. That means, the OS can enable MSI-X, then mask one MSI-X entry, modify it, and unmask it. The patch didn't support this, and Linux also don't work in this way. 3. The patch didn't implement MSI-X mask all and mask single entry. I would implement the former in driver/pci/msi.c later. And for single entry, userspace should have reposibility to handle it. Signed-off-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Sheng Yang 提交于
It's also convenient when we extend KVM supported vcpu number in the future. Signed-off-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Sheng Yang 提交于
Would be used with bit ops, and would be easily extended if KVM_MAX_VCPUS is increased. Signed-off-by: NSheng Yang <sheng@linux.intel.com> Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Windows 2008 accesses this MSR often on context switch intensive workloads; since we run in guest context with the guest MSR value loaded (so swapgs can work correctly), we can simply disable interception of rdmsr/wrmsr for this MSR. A complication occurs since in legacy mode, we run with the host MSR value loaded. In this case we enable interception. This means we need two MSR bitmaps, one for legacy mode and one for long mode. Signed-off-by: NAvi Kivity <avi@redhat.com>
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由 Avi Kivity 提交于
Highmem pages are a pain, and saving three lowmem pages on i386 isn't worth the extra code. Signed-off-by: NAvi Kivity <avi@redhat.com>
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- 09 6月, 2009 1 次提交
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由 Yinghai Lu 提交于
These are defined as static cpumask_var_t so if MAXSMP is not used, they are cleared already. Avoid surprises when MAXSMP is enabled. Signed-off-by: NYinghai Lu <yinghai.lu@kernel.org> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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- 08 6月, 2009 5 次提交
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由 Ralf Baechle 提交于
Outlining fixes the issue were on certain CPUs such as the R10000 family the delay loop would need an extra cycle if it overlaps a cacheline boundary. The rewrite also fixes build errors with GCC 4.4 which was changed in way incompatible with the kernel's inline assembly. Relying on pure C for computation of the delay value removes the need for explicit. The price we pay is a slight slowdown of the computation - to be fixed on another day. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Jaswinder Singh Rajput 提交于
Make ioctl.h compatible with asm-generic/ioctl.h and userspace fix the following 'make headers_check' warning: usr/include/asm-mips/ioctl.h:64: extern's make no sense in userspace Signed-off-by: NJaswinder Singh Rajput <jaswinderrajput@gmail.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Yoichi Yuasa 提交于
Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Yoichi Yuasa 提交于
Signed-off-by: NYoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Acked-by: NDavid Daney <ddaney@caviumnetworks.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Original patch by Imre Kaloz <kaloz@openwrt.org>. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 06 6月, 2009 1 次提交
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由 Dave Jones 提交于
The powernow-k8 driver checks to see that the Performance Control/Status Registers are declared as FFH (functional fixed hardware) by the BIOS. However, this check got broken in the commit: 0e64a0c9 [CPUFREQ] checkpatch cleanups for powernow-k8 Fix based on an original patch from Naga Chumbalkar. Signed-off-by: NNaga Chumbalkar <nagananda.chumbalkar@hp.com> Cc: Mark Langsdorf <mark.langsdorf@amd.com> Signed-off-by: NDave Jones <davej@redhat.com>
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- 05 6月, 2009 1 次提交
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由 Rusty Russell 提交于
We don't set up the canary; let's disable stack protector on boot.c so we can get into lguest_init, then set it up. As a side effect, switch_to_new_gdt() sets up %fs for us properly too. Signed-off-by: NRusty Russell <rusty@rustcorp.com.au> Acked-by: NTejun Heo <tj@kernel.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 04 6月, 2009 2 次提交
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由 Yinghai Lu 提交于
Pascal reported and bisected a commit: | x86/PCI: don't call e820_all_mapped with -1 in the mmconfig case which broke one system system. ACPI: Using IOAPIC for interrupt routing PCI: MCFG configuration 0: base f0000000 segment 0 buses 0 - 255 PCI: MCFG area at f0000000 reserved in ACPI motherboard resources PCI: Using MMCONFIG for extended config space it didn't have PCI: updated MCFG configuration 0: base f0000000 segment 0 buses 0 - 63 anymore, and try to use 0xf000000 - 0xffffffff for mmconfig For 32bit, mcfg_res->end could be 32bit only (if 64 resources aren't used) So use end - 1 to pass the value in mcfg->end to avoid overflow. We don't need to worry about the e820 path, they are always 64 bit. Reported-by: NPascal Terjan <pterjan@mandriva.com> Bisected-by: NPascal Terjan <pterjan@mandriva.com> Tested-by: NPascal Terjan <pterjan@mandriva.com> Signed-off-by: NYinghai Lu <yinghai@kernel.org> Cc: stable@kernel.org Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
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由 Philipp Zabel 提交于
Currently, pxa27x_udc tries to use GPIO 0 as D+ pullup if not explicitly configured. Default to an invalid GPIO (-1) instead. Signed-off-by: NPhilipp Zabel <philipp.zabel@gmail.com> Acked-by: NRobert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: NEric Miao <eric.miao@marvell.com>
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