linux/arch/x86
Zachary Amsden 1d5f066e0b KVM: x86: Fix a possible backwards warp of kvmclock
Kernel time, which advances in discrete steps may progress much slower
than TSC.  As a result, when kvmclock is adjusted to a new base, the
apparent time to the guest, which runs at a much higher, nsec scaled
rate based on the current TSC, may have already been observed to have
a larger value (kernel_ns + scaled tsc) than the value to which we are
setting it (kernel_ns + 0).

We must instead compute the clock as potentially observed by the guest
for kernel_ns to make sure it does not go backwards.

Signed-off-by: Zachary Amsden <zamsden@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2010-10-24 10:51:24 +02:00
..
boot x86, setup: Fix earlyprintk=serial,0x3f8,115200 2010-09-21 10:18:33 -07:00
configs defconfig reduction 2010-08-14 22:26:53 +02:00
crypto
ia32 Don't dump task struct in a.out core-dumps 2010-10-14 10:57:40 -07:00
include/asm KVM: x86: Fix a possible backwards warp of kvmclock 2010-10-24 10:51:24 +02:00
kernel x86: pvclock: Move scale_delta into common header 2010-10-24 10:51:24 +02:00
kvm KVM: x86: Fix a possible backwards warp of kvmclock 2010-10-24 10:51:24 +02:00
lguest lguest: update comments to reflect LHCALL_LOAD_GDT_ENTRY. 2010-09-21 10:54:02 +09:30
lib Merge branch 'x86/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-13 10:35:48 -07:00
math-emu
mm x86, numa: For each node, register the memory blocks actually used 2010-10-11 15:26:15 -07:00
oprofile oprofile: Add Support for Intel CPU Family 6 / Model 29 2010-09-21 12:22:48 +02:00
pci x86/PCI: use for_each_pci_dev() 2010-07-30 09:47:33 -07:00
power x86, tsc, sched: Recompute cyc2ns_offset's during resume from sleep states 2010-08-20 14:59:02 +02:00
tools
vdso Merge branches 'x86-cleanups-for-linus', 'x86-vmware-for-linus', 'x86-mtrr-for-linus', 'x86-apic-for-linus', 'x86-fpu-for-linus' and 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 16:22:59 -07:00
video
xen xen: do not initialize PV timers on HVM if !xen_have_vector_callback 2010-10-05 13:39:23 +01:00
.gitignore
Kbuild
Kconfig Replace Configure with Enable in description of MAXSMP 2010-08-21 12:38:58 -07:00
Kconfig.cpu
Kconfig.debug
Makefile x86, build: Disable -fPIE when compiling with CONFIG_CC_STACKPROTECTOR=y 2010-09-13 15:53:16 -07:00
Makefile_32.cpu