To avoid flickers, PyGRUB has to avoid spurious ncurses refresh as
much as possible, in particular before the complete screen is drawn,
and eventually call doupdate last.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
When we "xm destroy" a guest with assigned devices, in
xen/common/domain.c:domain_kill(), we relinquish guest's memory first,
then invoke domain_destroy() -> complete_domain_destroy() ->
arch_domain_destroy() -> pci_release_devices()/iommu_domain_destroy().
Between relinquish_memory() and domain_destroy(), a device may be
issuing DMA request and access guest's relinquished memory.
We can do_FLR() to quiesce devices before xc.domain_destroy().
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
Besides io_apic_write(), io_apic_modify() also writes to io apic RTE.
This patch adds an intercept to remap interrupt in io_apic_modify().
In io_apic_read_remap_rte(), 'mask' value of RTE should not affect the
return value, so remove its checking.
Finally, remove panic() when index overflows. Instead, print error
messages and report back the failure to upper level.
Signed-off-by: Weidong Han <weidong.han@intel.com>
pass for the HVM guest to successfully boot.
Currently only one test (REP INS across page boundaries) but more will
be added in future.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
PAGE_SIZE - (x & ~PAGE_MASK) is not equivalent to -x & ~PAGE_MASK
Also the early goto could be removed.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
The ssidref in getdomaininfo() is not initialized when XSM_ENABLE is
not defined. So, xentop might display a wrong value of ssid.
Signed-off-by: Kazuhiro Suzuki <kaz@jp.fujitsu.com>
point at which the index register (SI/DI) wraps. This can cause a
discontinuity in the address range accessed by the repeated
instruction.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
VT-d hot-plug is done in such a way: 1) xend sends 'pci-ins' command
to ioemu via xenstore; 2) ioemu creates pass-through device and raises
SCI to guest OS; guest OS loads device driver, and device driver
initializes the hot-plugged device; 3) xend does FLR. There is a race
condition about 2) and 3). If 3) runs slow, we have troubles. Thanks
for Yuji Shimada's locating the issues.
We can work around the issues by not doing FLR when we create domain
or hotplug device into guest, namely, we only do FLR when we destroy
domain or hotplug device from guest.
Signed-off-by: Dexuan Cui <dexuan.cui@intel.com>
Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
The softtsc code for AMD does not update the ip; enabling it on AMD-V
results in the domain spinning on the RDTSC instruction. The patch is
against xen-unstable 18331.
Signed-off-by: John Byrne <john.l.byrne@hp.com>
This fixes a crash when restoring guests with certain memory sizes (eg
223MB). The ROUNDUP in the call to memcpy, was the main offender, but
I didn't care for the inplace resizing of the p2m entries either.
Signed-off-by: Bruce Rogers <brogers@novell.com>
I couldn't reproduce the Nevada crash on my testbox, but this should
fix the first Xen crash that was seen in the Nevada HVM (bugzilla
#1322).
What I think most probably happened there is that the set_l2e call in
shadow_get_and_create_l1e() has tried to resync a page, but somehow we
weren't unable to remove the shadow (the real bug we should actually
look after). sh_resync() then removes the page from the OOS hash and
later in the page fault path we find the gw.l1mfn to be still OOS, so
we try to update the snapshot and the bug happens.
This should fix this and other unlikely (like sh_unsync() failing to
remove for hash collision the current gw.l1mfn) cases.
Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
remove the runtime warning when HVMOP_set_mem_type is used.
But the hypercall just returns -ENOSYS. It isn't implemented yet.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Attached patch allows to pass arguments to xenconsoled
via XENCONSOLED_TRACE env. variable analogous to xenstored.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser
Isaku Yamahata