john cooper 91c9c3eda4 KVM: x86: handle guest access to BBL_CR_CTL3 MSR ... A correction to Intel cpu model CPUID data (patch queued) caused winxp to BSOD when booted with a Penryn model. This was traced to the CPUID "model" field correction from 6 -> 23 (as is proper for a Penryn class of cpu). Only in this case does the problem surface. The cause for this failure is winxp accessing the BBL_CR_CTL3 MSR which is unsupported by current kvm, appears to be a legacy MSR not fully characterized yet existing in current silicon, and is apparently carried forward in MSR space to accommodate vintage code as here. It is not yet conclusive whether this MSR implements any of its legacy functionality or is just an ornamental dud for compatibility. While I found no silicon version specific documentation link to this MSR, a general description exists in Intel's developer's reference which agrees with the functional behavior of other bootloader/kernel code I've examined accessing BBL_CR_CTL3. Regrettably winxp appears to be setting bit #19 called out as "reserved" in the above document. So to minimally accommodate this MSR, kvm msr get will provide the equivalent mock data and kvm msr write will simply toss the guest passed data without interpretation. While this treatment of BBL_CR_CTL3 addresses the immediate problem, the approach may be modified pending clarification from Intel. Signed-off-by: john cooper <john.cooper@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>		2011-03-17 13:08:27 -03:00
..
uv	x86, UV: Initialize the broadcast assist unit base destination node id properly	2011-03-09 16:36:16 +01:00
visws
xen	Merge branch 'for-linus' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm	2011-03-15 10:59:09 -07:00
a.out-core.h
a.out.h
acpi.h	Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-16 10:10:02 -07:00
aes.h
agp.h
alternative-asm.h
alternative.h	Merge branches 'x86-alternatives-for-linus', 'x86-fpu-for-linus', 'x86-hwmon-for-linus', 'x86-paravirt-for-linus', 'core-locking-for-linus' and 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-01-06 11:11:50 -08:00
amd_iommu_proto.h
amd_iommu_types.h
amd_iommu.h	Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-21 14:23:48 -07:00
amd_nb.h	Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-16 10:14:56 -07:00
apb_timer.h
apic.h	Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-15 20:01:36 -07:00
apicdef.h	x86: Move ioapic_irq_destination_types to apicdef.h	2011-02-23 11:38:44 +01:00
apm.h
arch_hweight.h
asm-offsets.h
asm.h
atomic64_32.h
atomic64_64.h
atomic.h
auxvec.h
bios_ebda.h
bitops.h
bitsperlong.h
boot.h	x86: support XZ-compressed kernel	2011-01-13 08:03:25 -08:00
bootparam.h	x86: Add device tree support	2011-02-23 22:27:52 +01:00
bug.h
bugs.h
byteorder.h
cache.h
cacheflush.h	x86: Use asm-generic/cacheflush.h	2011-01-21 14:11:12 +01:00
calgary.h
calling.h
ce4100.h	x86: ce4100: Set pci ops via callback instead of module init	2011-03-14 15:13:23 +01:00
checksum_32.h
checksum_64.h
checksum.h
cmpxchg_32.h
cmpxchg_64.h
cmpxchg.h
compat.h
cpu.h	x86: Fix mwait_usable section mismatch	2011-02-14 12:08:28 +01:00
cpufeature.h	perf, x86: Add support for AMD family 15h core counters	2011-02-16 13:30:53 +01:00
cpumask.h
cputime.h
current.h
debugreg.h	x86: Use this_cpu_ops to optimize code	2010-12-30 12:20:28 +01:00
delay.h
desc_defs.h
desc.h
device.h
div64.h
dma-mapping.h
dma.h
dmi.h
dwarf2.h
e820.h	x86: e820: Remove conditional early mapping in parse_e820_ext	2011-02-23 22:27:52 +01:00
edac.h
efi.h
elf.h
emergency-restart.h
entry_arch.h	x86: Allocate 32 tlb_invalidate_interrupt handler stubs	2011-02-14 13:03:08 +01:00
errno.h
fb.h
fcntl.h
fixmap.h	x86: Fix Moorestown VRTC fixmap placement	2011-01-11 12:46:16 +01:00
floppy.h
frame.h	x86: Use {push,pop}_cfi in more places	2011-02-28 18:06:22 +01:00
ftrace.h
futex.h	futex: Sanitize futex ops argument types	2011-03-11 12:23:31 +01:00
gart.h	Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2010-10-21 14:23:48 -07:00
genapic.h
geode.h
gpio.h	x86/gpio: Implement x86 gpio_to_irq convert function	2011-01-11 12:46:15 +01:00
hardirq.h
highmem.h	mm: stack based kmap_atomic()	2010-10-26 16:52:08 -07:00
hpet.h
hugetlb.h
hw_breakpoint.h
hw_irq.h	x86: Allocate 32 tlb_invalidate_interrupt handler stubs	2011-02-14 13:03:08 +01:00
hypertransport.h
hyperv.h
hypervisor.h	xen: HVM X2APIC support	2011-01-07 10:03:50 -05:00
i387.h	x86-64, asm: Use fxsaveq/fxrestorq in more places	2010-10-22 15:33:38 -07:00
i8253.h
i8259.h
ia32_unistd.h
ia32.h
idle.h
inat_types.h
inat.h
init.h	x86: Rename e820_table_* to pgt_buf_*	2011-02-24 14:52:18 +01:00
insn.h
inst.h
intel_scu_ipc.h
io_apic.h	x86: ioapic: Move trigger defines to io_apic.h	2011-02-23 19:58:09 +01:00
io.h	Merge branch 'stable/xen-pcifront-0.8.2' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen	2010-10-28 17:11:17 -07:00
ioctl.h
ioctls.h
iomap.h	mm: stack based kmap_atomic()	2010-10-26 16:52:08 -07:00
iommu_table.h
iommu.h
ipcbuf.h
ipi.h	x86: Make default_send_IPI_mask_sequence/allbutself_logical() 32bit only	2011-01-28 14:54:05 +01:00
irq_controller.h	x86: dtb: Add irq domain abstraction	2011-02-23 22:27:53 +01:00
irq_regs.h
irq_remapping.h
irq_vectors.h	x86: Work around old gas bug	2011-03-03 12:47:08 +01:00
irq.h	x86: Add device tree support	2011-02-23 22:27:52 +01:00
irqflags.h
ist.h
jump_label.h	x86: Fix jump label with RO/NX module protection crash	2011-01-23 16:12:45 +01:00
Kbuild
kdebug.h	x86: Remove die_nmi()	2011-02-18 08:54:05 +01:00
kexec.h
kgdb.h
kmap_types.h
kmemcheck.h
kprobes.h
kvm_emulate.h	KVM: SVM: copy instruction bytes from VMCB	2011-01-12 11:31:07 +02:00
kvm_host.h	thp: mmu_notifier_test_young	2011-01-13 17:32:46 -08:00
kvm_para.h	KVM: x86: Add missing inline tag to kvm_read_and_reset_pf_reason	2011-01-12 11:23:27 +02:00
kvm.h
ldt.h
lguest_hcall.h
lguest.h
linkage.h
local64.h
local.h
mach_timer.h
mach_traps.h	x86, NMI: Add NMI symbol constants and rename memory parity to PCI SERR	2011-01-07 15:08:51 +01:00
math_emu.h
mc146818rtc.h
mca_dma.h
mca.h
mce.h	x86, hwmon: Add core threshold notification to therm_throt.c	2011-01-03 08:30:30 -08:00
memblock.h
microcode.h	x86, microcode, AMD: Cleanup code a bit	2010-11-10 14:54:54 +01:00
mman.h
mmconfig.h
mmu_context.h	x86, mm: avoid possible bogus tlb entries by clearing prev mm_cpumask after switching mm	2011-02-03 13:32:39 -08:00
mmu.h
mmx.h
mmzone_32.h
mmzone_64.h
mmzone.h
module.h
mpspec_def.h	x86: Fix APIC ID sizing bug on larger systems, clean up MAX_APICS confusion	2011-01-05 14:09:23 +01:00
mpspec.h	x86: Unify cpu/apicid <-> NUMA node mapping between 32 and 64bit	2011-01-28 14:54:09 +01:00
mrst-vrtc.h	x86: mrst: Add vrtc driver which serves as a wall clock device	2010-11-11 11:34:27 +01:00
mrst.h	x86: mrst: Add vrtc driver which serves as a wall clock device	2010-11-11 11:34:27 +01:00
msgbuf.h
mshyperv.h
msidef.h
msr-index.h	KVM: x86: handle guest access to BBL_CR_CTL3 MSR	2011-03-17 13:08:27 -03:00
msr.h
mtrr.h
mutex_32.h
mutex_64.h
mutex.h
mwait.h
nmi.h	x86: Remove die_nmi()	2011-02-18 08:54:05 +01:00
nops.h
numa_32.h	x86: Rename incorrectly named parameter of numa_cpu_node()	2011-01-31 18:22:25 +01:00
numa_64.h	x86-64, NUMA: Unify emulated distance mapping	2011-02-16 17:11:10 +01:00
numa.h	x86-64, NUMA: Factor out memblk handling into numa_{add|register}_memblk()	2011-02-16 17:11:07 +01:00
numaq.h
olpc_ofw.h	x86: OLPC: Make OLPC=n build again	2011-02-23 11:54:02 +01:00
olpc.h	drivers/staging/olpc_dcon: convert to new cs5535 gpio API	2011-01-13 08:03:13 -08:00
page_32_types.h
page_32.h
page_64_types.h
page_64.h
page_types.h	x86-64, NUMA: Revert NUMA affine page table allocation	2011-03-04 10:26:36 +01:00
page.h
param.h
paravirt_types.h	thp: add pmd paravirt ops	2011-01-13 17:32:39 -08:00
paravirt.h	thp: fix PARAVIRT x86 32bit noPAE	2011-01-26 10:49:57 +10:00
parport.h
pat.h
pci_64.h
pci_x86.h
pci-direct.h
pci-functions.h
pci.h	x86: Add NX protection for kernel data	2010-11-18 12:52:04 +01:00
percpu.h	Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2011-03-16 08:22:41 -07:00
perf_event_p4.h	perf, x86: P4 PMU: Fix spurious NMI messages	2011-02-16 12:26:12 +01:00
perf_event.h	perf, arch: Cleanup perf-pmu init vs lockup-detector	2010-11-26 15:14:56 +01:00
pgalloc.h	tree-wide: fix comment/printk typos	2010-11-01 15:38:34 -04:00
pgtable_32_types.h
pgtable_32.h	mm: remove pte_*map_nested()	2010-10-26 16:52:08 -07:00
pgtable_64_types.h
pgtable_64.h	thp: add x86 32bit support	2011-01-13 17:32:44 -08:00
pgtable_types.h	thp: add pmd_modify	2011-01-13 17:32:44 -08:00
pgtable-2level_types.h
pgtable-2level.h	thp: add x86 32bit support	2011-01-13 17:32:44 -08:00
pgtable-3level_types.h
pgtable-3level.h	thp: add x86 32bit support	2011-01-13 17:32:44 -08:00
pgtable.h	thp: don't allow transparent hugepage support without PSE	2011-01-13 17:32:45 -08:00
poll.h
posix_types_32.h
posix_types_64.h
posix_types.h
prctl.h
processor-cyrix.h
processor-flags.h
processor.h	x86: Move llc_shared_map out of cpu_info	2011-01-26 08:44:49 +01:00
prom.h	x86: dt: Cleanup local apic setup	2011-02-25 16:18:52 +01:00
proto.h
ptrace-abi.h
ptrace.h
pvclock-abi.h
pvclock.h	x86/pvclock: Zero last_value on resume	2010-11-28 09:33:20 +01:00
reboot_fixups.h
reboot.h	x86, reboot: Move the real-mode reboot code to an assembly file	2011-02-17 21:05:34 -08:00
required-features.h
resource.h
resume-trace.h
rio.h
rtc.h
rwlock.h
rwsem.h	rwsem: Move duplicate function prototypes to linux/rwsem.h	2011-01-27 12:30:39 +01:00
scatterlist.h
seccomp_32.h
seccomp_64.h
seccomp.h
sections.h
segment.h	x86: Make the GDT_ENTRY() macro in <asm/segment.h> safe for assembly	2011-02-17 21:05:13 -08:00
sembuf.h
serial.h
setup_arch.h
setup.h	x86: Add CE4100 platform support	2010-11-12 00:45:41 +01:00
shmbuf.h
shmparam.h
sigcontext32.h
sigcontext.h
sigframe.h
siginfo.h
signal.h
smp.h	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-15 19:49:10 -07:00
smpboot_hooks.h	x86: Use u32 instead of long to set reset vector back to 0	2011-02-28 16:22:18 +01:00
socket.h
sockios.h
sparsemem.h
spinlock_types.h
spinlock.h
srat.h
stackprotector.h
stacktrace.h	x86: Eliminate bp argument from the stack tracing routines	2010-11-18 14:37:34 +01:00
stat.h
statfs.h
string_32.h
string_64.h
string.h
suspend_32.h
suspend_64.h
suspend.h
svm.h	KVM: SVM: copy instruction bytes from VMCB	2011-01-12 11:31:07 +02:00
swab.h
swiotlb.h
sync_bitops.h
sys_ia32.h
syscall.h
syscalls.h
system.h	x86, system.h: Drop unused __SAVE/__RESTORE macros	2011-02-20 13:38:47 +01:00
tce.h
termbits.h
termios.h
thread_info.h
time.h
timer.h	x86, nmi_watchdog: Remove all stub function calls from old nmi_watchdog	2010-11-18 09:08:23 +01:00
timex.h
tlb.h
tlbflush.h
topology.h	x86-64, NUMA: Implement generic node distance handling	2011-02-16 17:11:09 +01:00
trampoline.h	x86, trampoline: Use the unified trampoline setup for ACPI wakeup	2011-02-17 21:05:06 -08:00
traps.h	KVM: Handle async PF in a guest.	2011-01-12 11:23:16 +02:00
tsc.h
types.h
uaccess_32.h
uaccess_64.h
uaccess.h
ucontext.h
unaligned.h
unistd_32.h	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-15 18:53:35 -07:00
unistd_64.h	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip	2011-03-15 18:53:35 -07:00
unistd.h
user32.h
user_32.h
user_64.h
user.h
vdso.h
vga.h
vgtod.h
virtext.h
vm86.h
vmx.h	KVM: VMX: Add definitions for more vm entry/exit control bits	2011-01-12 11:31:08 +02:00
vsyscall.h
x86_init.h	x86/platform: Add a wallclock_init func to x86_init.timers ops	2011-02-14 18:20:43 +01:00
xcr.h
xor_32.h
xor_64.h
xor.h
xsave.h