Currently, msix table pages are allocated a fixmap page per vector,
the available fixmap pages will be depleted when assigning devices
with large number of vectors. This patch fixes it, and a bug that
prevents cross-page MSI-X table from working properly
It now allocates msix table fixmap pages per device, if the table
entries of two msix vectors share the same page, it will only be
mapped to fixmap once. A ref count is maintained so that it can
be unmapped when all the vectors are freed.
Also changes the meaning of msi_desc->mask_base from the va of msix
table start to the va of the target entry. The former one is currently
buggy (it always maps the first page but msix can support up to 2048
entries) and can't handle separately allocated pages.
Signed-off-by: Qing He <qing.he@intel.com>
Also disable by default if not specified in domain config. Otherwise
the feature would be incorrectly enabled for old saved domain images.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Aligned periodic vpts can improve the HVM guest power consumption a
lot, especially while the guest using high HZ such as 1000HZ.
Signed-off-by: Wei Gang <gang.wei@intel.com>
- usage of undefined variables in error cases (invalid handle
specified) in methods VBD_create, VTPM_destroy, event_unregister
- not imported module 'uuid' in method debug_create results in an
exception
Signed-off-by: Lutz Dube <Lutz.Dube@fujitsu-siemens.com>
- A simple txt howto based on previous list discussions and observations
- A oneliner patch to address a compiler type cast error for x86_64
Signed-off-by: George S. Coker, II <gscoker@alpha.ncsc.mil>
Show errors in the way they are coming from xm command only (no usage
is printed now). Watchdog_wm() has been changed for not showing dots
in the process of shutting down domains and if an error occurs it
prints target domain, operation (save/restore/migrate etc.) and reason
of failure in more user-friendly way.
Signed-off-by: Michal Novotny <minovotn@redhat.com>
This patch is the ia64 counter part of 19107:0858f961c77a,
19132:5848b49b74fc and 19136:162cdb596b9a.
This patch shrink ia64 struct page_info and rearrange its members.
The shrinking is made compile time option in config.h with default off
becuase physical address size is architected to 50bit by ia64
and mfn isn't always addressed by 32bits with 16KB page size.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
This patch fixes to avoid calling xmalloc() from the interrupt handler.
Calling xmalloc() with interrupt disabled triggers the following
BUG_ON().
> (XEN) Xen BUG at xmalloc_tlsf.c:548
Signed-off-by: Kazuhiro Suzuki <kaz@jp.fujitsu.com>
The bcc compiler generates wrong stack pointer offset of a local
variable within ASM code if another local variable is declared
later.
Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
Signed-off-by: Akio Takebe <takebe_akio@jp.fujitsu.com>
- Append '_IRQ' to AUTO_ASSIGN, NEVER_ASSIGN, and FREE_TO_ASSIGN
- Rename {request,setup}_irq to {request,setup}_irq_vector
- Rename free_irq to release_irq_vector
- Add {request,setup,release}_irq wrappers for their
{request,setup,release}_irq_vector counterparts
- Added generic irq_to_vector inline for ia64
- Changed ia64 to use the new naming scheme
Signed-off-by: Espen Skoglund <espen.skoglund@netronome.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
c/s 19149 update cpufreq get_cur_val logic to avoid cross processor
call. However, to avoid null drv_data pointer, we adjust some logic in
this patch to keep advantage of c/s 19149 and at same time to avoid
null drv_data pointer.
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
c/s 19147 adjust cpufreq cmdline handling, this patch is a complement
to c/s 19147.
In this patch:
1. add common para (governor independent para) handling;
2. change governor dependent para handling method, governor dependent
para will only be handled by the handler of that governor (not by all
governors);
3. add userspace governor dependent para handling;
4. change para name 'threshold' of ondemand governor to 'up_threshold'
since ondemand has only 'up_threshold', and conservative governor (will be
implemented later) has both 'up_threshold' and 'down_threshold';
5. change some coding style (c/s 19147, drivers/cpufreq/cpufreq.c) to
keep coordination with original drivers/cpufreq/cpufreq.c coding style;
(originally this file is ported from linux, we partly use linux coding style)
Signed-off-by: Liu, Jinsong <jinsong.liu@intel.com>
Provide extended physial CPU info for the sake of dom0 MCE handling.
This information includes <cpu,core,thread> info for all logical CPUs,
cpuid information from all of them, and initial MSR values for a few
MSRs that are important to MCE handling.
Signed-off-by: Frank van der Linden <Frank.Vanderlinden@Sun.COM>
Don't automatically update ioapic_irq array when allocating vectors.
Only do so when actually allocating IOAPIC irqs. Also move some
IOAPIC specific defines to io_apic.c.
Signed-off-by: Espen Skoglund <espen.skoglund@netronome.com>
- Check for errors when allocating interrupt vectors
- Clean up if interrupt allocation failed
- Make sure that the allocated vector is not reused
Signed-off-by: Espen Skoglund <espen.skoglund@netronome.com>
This includes making the pagetable walker in xc_pagetab.c behave
correctly for 32-bit and 64-bit HVM guests.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
and replace them with open-coded equivalents. DECLARE_BITMAP is
not exported to user-space consumers of the Xen headers.
Signed-off-by: Tim Deegan <Tim.Deegan@citrix.com>
Keir Fraser
Isaku Yamahata