- 01 Mar, 2010 33 commits
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Marcelo Tosatti authored
Using a similar two-step procedure as for memslots. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Marcelo Tosatti authored
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Marcelo Tosatti authored
Use two steps for memslot deletion: mark the slot invalid (which stops instantiation of new shadow pages for that slot, but allows destruction), then instantiate the new empty slot. Also simplifies kvm_handle_hva locking. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Marcelo Tosatti authored
So its possible to iommu map a memslot before making it visible to kvm. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Marcelo Tosatti authored
Which takes a memslot pointer instead of using kvm->memslots. To be used by SRCU convertion later. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Marcelo Tosatti authored
Required for SRCU convertion later. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Marcelo Tosatti authored
Have a pointer to an allocated region inside x86's kvm_arch. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Marcelo Tosatti authored
Have a pointer to an allocated region inside struct kvm. [alex: fix ppc book 3s] Signed-off-by: Alexander Graf <agraf@suse.de> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Wu Fengguang authored
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Alexander Graf authored
Progress on KVM for Embedded PowerPC has stalled, but for Book3S there's quite a lot of work to do and going on. So in agreement with Hollis and Avi, we should switch maintainers for PowerPC. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Hollis Blanchard <hollis@penguinppc.org> Signed-off-by: Avi Kivity <avi@redhat.com>
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Alexander Graf authored
Because we now emulate the DEC interrupt according to real life behavior, there's no need to keep the AGGRESSIVE_DEC hack around. Let's just remove it. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Acked-by: Hollis Blanchard <hollis@penguinppc.org> Signed-off-by: Avi Kivity <avi@redhat.com>
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Alexander Graf authored
We treated the DEC interrupt like an edge based one. This is not true for Book3s. The DEC keeps firing until mtdec is issued again and thus clears the interrupt line. So let's implement this logic in KVM too. This patch moves the line clearing from the firing of the interrupt to the mtdec emulation. This makes PPC64 guests work without AGGRESSIVE_DEC defined. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Acked-by: Hollis Blanchard <hollis@penguinppc.org> Signed-off-by: Avi Kivity <avi@redhat.com>
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Alexander Graf authored
We're using a switch table to find the irqprio that belongs to a specific interrupt vector. This table is part of the interrupt inject logic. Since we'll add a new function to stop interrupts, let's move this table out of the injection logic into a separate function. Signed-off-by: Alexander Graf <agraf@suse.de> Acked-by: Acked-by: Hollis Blanchard <hollis@penguinppc.org> Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
- add destructor function - move related allocation into constructor - add stubs for !CONFIG_KVM_MMIO Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
s390 doesn't have mmio, this will simplify ifdefing it out. Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
They aren't related. Signed-off-by: Avi Kivity <avi@redhat.com>
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Joerg Roedel authored
The tsc_offset adjustment in svm_vcpu_load is executed unconditionally even if Linux considers the host tsc as stable. This causes a Linux guest detecting an unstable tsc in any case. This patch removes the tsc_offset adjustment if the host tsc is stable. The guest will now get the benefit of a stable tsc too. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Sheng Yang authored
Before enabling, execution of "rdtscp" in guest would result in #UD. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Sheng Yang authored
Sometime, we need to adjust some state in order to reflect guest CPUID setting, e.g. if we don't expose rdtscp to guest, we won't want to enable it on hardware. cpuid_update() is introduced for this purpose. Also export kvm_find_cpuid_entry() for later use. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Sheng Yang authored
KVM need vsyscall_init() to initialize MSR_TSC_AUX before it read the value. Per Avi's suggestion, this patch raised vsyscall priority on hotplug notifier chain, to 30. CC: Ingo Molnar <mingo@elte.hu> CC: linux-kernel@vger.kernel.org Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Sheng Yang authored
shared_msr_global saved host value of relevant MSRs, but it have an assumption that all MSRs it tracked shared the value across the different CPUs. It's not true with some MSRs, e.g. MSR_TSC_AUX. Extend it to per CPU to provide the support of MSR_TSC_AUX, and more alike MSRs. Notice now the shared_msr_global still have one assumption: it can only deal with the MSRs that won't change in host after KVM module loaded. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Sheng Yang authored
It's no longer necessary. Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
ept_update_paging_mode_cr4() accesses vcpu->arch.cr4 directly, which usually needs to be accessed via kvm_read_cr4(). In this case, we can't, since cr4 is in the process of being updated. Instead of adding inane comments, fold the function into its caller (vmx_set_cr4), so it can use the not-yet-committed cr4 directly. Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
We make no use of cr4.pge if ept is enabled, but the guest does (to flush global mappings, as with vmap()), so give the guest ownership of this bit. Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
Instead of specifying the bits which we want to trap on, specify the bits which we allow the guest to change transparently. This is safer wrt future changes to cr4. Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
Some bits of cr4 can be owned by the guest on vmx, so when we read them, we copy them to the vcpu structure. In preparation for making the set of guest-owned bits dynamic, use helpers to access these bits so we don't need to know where the bit resides. No changes to svm since all bits are host-owned there. Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
They have no place in common code. Signed-off-by: Avi Kivity <avi@redhat.com>
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Sheng Yang authored
We don't support these instructions, but guest can execute them even if the feature('monitor') haven't been exposed in CPUID. So we would trap and inject a #UD if guest try this way. Cc: stable@kernel.org Signed-off-by: Sheng Yang <sheng@linux.intel.com> Signed-off-by: Avi Kivity <avi@redhat.com>
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Avi Kivity authored
In the past we've had errors of single-bit in the other two cases; the printk() may confirm it for the third case (many->many). Signed-off-by: Avi Kivity <avi@redhat.com>
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Marcelo Tosatti authored
Windows 2003 uses task switch to triple fault and reboot (the other exception being reserved pdptrs bits). Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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Eddie Dong authored
Move Double-Fault generation logic out of page fault exception generating function to cover more generic case. Signed-off-by: Eddie Dong <eddie.dong@intel.com> Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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- 28 Feb, 2010 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds authored
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, uv: Remove recursion in uv_heartbeat_enable() x86, uv: uv_global_gru_mmr_address() macro fix x86, uv: Add serial number parameter to uv_bios_get_sn_info()
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Linus Torvalds authored
Merge branch 'x86-ptrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-ptrace-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, ptrace: Remove set_stopped_child_used_math() in [x]fpregs_set x86, ptrace: Simplify xstateregs_get() ptrace: Fix ptrace_regset() comments and diagnose errors specifically parisc: Disable CONFIG_HAVE_ARCH_TRACEHOOK ptrace: Add support for generic PTRACE_GETREGSET/PTRACE_SETREGSET x86, ptrace: regset extensions to support xstate
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tipLinus Torvalds authored
* 'x86-pci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Enable NMI on all cpus on UV vgaarb: Add user selectability of the number of GPUS in a system vgaarb: Fix VGA arbiter to accept PCI domains other than 0 x86, uv: Update UV arch to target Legacy VGA I/O correctly. pci: Update pci_set_vga_state() to call arch functions
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Linus Torvalds authored
Merge branch 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, setup: Don't skip mode setting for the standard VGA modes x86-64, setup: Inhibit decompressor output if video info is invalid x86, setup: When restoring the screen, update boot_params.screen_info
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Linus Torvalds authored
Merge branch 'x86-rwsem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-rwsem-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86-64, rwsem: Avoid store forwarding hazard in __downgrade_write x86-64, rwsem: 64-bit xadd rwsem implementation x86: Fix breakage of UML from the changes in the rwsem system x86-64: support native xadd rwsem implementation x86: clean up rwsem type system
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Linus Torvalds authored
Merge branch 'x86-numa-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-numa-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, numa: Remove configurable node size support for numa emulation x86, numa: Add fixed node size option for numa emulation x86, numa: Fix numa emulation calculation of big nodes x86, acpi: Map hotadded cpu to correct node.
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Linus Torvalds authored
Merge branch 'x86-mtrr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-mtrr-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Convert set_atomicity_lock to raw_spinlock x86, mtrr: Kill over the top warn x86, mtrr: Constify struct mtrr_ops
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