22 Jul, 2008
5 commits
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We have the dev_printk() variants for this kind of thing, use them
instead of directly trying to access the bus_id field of struct device.This is done in order to remove bus_id entirely.
Cc: Kay Sievers
Signed-off-by: Greg Kroah-Hartman -
device_create() is race-prone, so use the race-free
device_create_drvdata() instead as device_create() is going away.Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: H. Peter Anvin
Signed-off-by: Greg Kroah-Hartman -
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] cpufreq: remove CVS keywords
[CPUFREQ] change cpu freq arrays to per_cpu variables -
The message talked about "left on" when it meant to say disabled.
Signed-off-by: Linus Torvalds
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There are a couple of places where (P)Dprintk is used which is an old
compile time enabled printk wrapper. Convert it to the generic
pr_debug().Signed-off-by: Thomas Gleixner
21 Jul, 2008
7 commits
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…ore', '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
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Signed-off-by: Yinghai Lu
Signed-off-by: Ingo Molnar -
... 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
Signed-off-by: Ingo Molnar
20 Jul, 2008
28 commits
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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
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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
Signed-off-by: Avi Kivity -
Harden kvm_mmu_zap_page() against invalid root pages that
had been shadowed from memslots that are gone.Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
Flush the shadow mmu before removing regions to avoid stale entries.
Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
Fixes compilation with CONFIG_VMI enabled.
Signed-off-by: Avi Kivity
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Check that an injected pic irq is between 0 and 15.
Signed-off-by: Ben-Ami Yassour
Signed-off-by: Avi Kivity -
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
Signed-off-by: Avi Kivity -
Signed-off-by: Avi Kivity
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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
Signed-off-by: Avi Kivity -
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
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This patch makes the needlessly global kvm_smp_prepare_boot_cpu() static.
Signed-off-by: Adrian Bunk
Signed-off-by: Avi Kivity -
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
Signed-off-by: Avi Kivity -
There is no need to grab slots_lock if the vapic_page will not
be touched.Signed-off-by: Marcelo Tosatti
Signed-off-by: Avi Kivity -
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
Signed-off-by: Avi Kivity -
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
Signed-off-by: Avi Kivity -
Signed-off-by: Avi Kivity
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Signed-off-by: Avi Kivity
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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
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Signed-off-by: Avi Kivity
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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
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Consolidate the duplicated code when not in any special case.
Signed-off-by: Avi Kivity
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Instead of using sparse switches, use simpler if/else sequences.
Signed-off-by: Avi Kivity
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x86_64 does not decode rex.b in certain cases, where the r/m field = 5.
Signed-off-by: Avi Kivity
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Signed-off-by: Mohammed Gamal
Signed-off-by: Avi Kivity -
Emulation failure reports are useful, so allow more than one per the lifetime
of the module.Signed-off-by: Avi Kivity
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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
Signed-off-by: Avi Kivity -
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
Signed-off-by: Avi Kivity -
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
Signed-off-by: Avi Kivity
