xen.git
17 years agoioemu: Add check for mapping MSI pirqs.
Keir Fraser [Wed, 2 Jul 2008 08:45:18 +0000 (09:45 +0100)]
ioemu: Add check for mapping MSI pirqs.
From: Haitao Shan <haitao.shan@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86: Fix MSI cleanup.
Keir Fraser [Wed, 2 Jul 2008 08:44:09 +0000 (09:44 +0100)]
x86: Fix MSI cleanup.

Fixes bugzilla bug #1279.

From: Haitao Shan <haitao.shan@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoxend: Replace stray tab-indent with space-indent
Keir Fraser [Wed, 2 Jul 2008 08:42:37 +0000 (09:42 +0100)]
xend: Replace stray tab-indent with space-indent

Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
17 years agomerge with xen-unstable.hg
Isaku Yamahata [Wed, 2 Jul 2008 02:30:37 +0000 (11:30 +0900)]
merge with xen-unstable.hg

17 years agominios: proper frees are now handled, so drop the FIXME comment
Keir Fraser [Tue, 1 Jul 2008 13:50:35 +0000 (14:50 +0100)]
minios: proper frees are now handled, so drop the FIXME comment

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agox86_emulate: (Almost) complete FPU emulation.
Keir Fraser [Tue, 1 Jul 2008 12:27:41 +0000 (13:27 +0100)]
x86_emulate: (Almost) complete FPU emulation.

Provide emulation for all FPU instructions except fsave/frstore &
fnstenv/fldenv.

While the main purpose of the patch is to avoid current and future
"gotchas" on FPU intructions used by various OS boot-loaders, it is
complete enough to run DOS realmode FPU applications and benchmarks,
but don't expect to set any speed records.

Signed-off-by: Trolle Selander <trolle.selander@eu.citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoVT-d: Fix queue invalidation
Keir Fraser [Tue, 1 Jul 2008 10:41:43 +0000 (11:41 +0100)]
VT-d: Fix queue invalidation

Correct invalidate_sync(), and clean up qinval_setup().

Signed-off-by: Weidong Han <weidong.han@intel.com>
17 years agoVT-d: Do CLFLUSH after updating IRTE entries
Keir Fraser [Tue, 1 Jul 2008 10:40:55 +0000 (11:40 +0100)]
VT-d: Do CLFLUSH after updating IRTE entries

Like root, context and DMA remap page table, interrupt remap table
also needs CLFLUSH after any update.

Signed-off-by: Weidong Han <weidong.han@intel.com>
17 years agoxenballoond (memory overcommit) scripts
Keir Fraser [Tue, 1 Jul 2008 10:40:07 +0000 (11:40 +0100)]
xenballoond (memory overcommit) scripts

See the README and conf files for more info.

Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com>
17 years agoioemu: limit xen-console buffering
Keir Fraser [Tue, 1 Jul 2008 10:38:51 +0000 (11:38 +0100)]
ioemu: limit xen-console buffering
Set dom->buffer.max_capacity to xend configured limit.

Signed-off-by: Pat Campbell <plc@novell.com>
17 years agoxend: open qemu-dm logfile in append mode if log rotation is disabled by config.
Keir Fraser [Tue, 1 Jul 2008 09:59:09 +0000 (10:59 +0100)]
xend: open qemu-dm logfile in append mode if log rotation is disabled by config.

Signed-off-by: Yosuke Iwamatsu <y-iwamatsu@ab.jp.nec.com>
17 years agoxend: improve the rotation of qemu-dm logfiles.
Keir Fraser [Tue, 1 Jul 2008 09:58:43 +0000 (10:58 +0100)]
xend: improve the rotation of qemu-dm logfiles.

Signed-off-by: Yosuke Iwamatsu <y-iwamatsu@ab.jp.nec.com>
17 years agox86_emulate: read/write/insn_fetch emulation hooks now all take a
Keir Fraser [Mon, 30 Jun 2008 13:19:09 +0000 (14:19 +0100)]
x86_emulate: read/write/insn_fetch emulation hooks now all take a
pointer to emulator data buffer, and an arbitrary byte count (up to
the size of a page of memory).

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoblktap: Fall back to libcrypto if libgcrypt is not installed.
Keir Fraser [Mon, 30 Jun 2008 10:39:10 +0000 (11:39 +0100)]
blktap: Fall back to libcrypto if libgcrypt is not installed.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agotools/python: fix TypeError for 17903:0728459b3c8d
Keir Fraser [Mon, 30 Jun 2008 09:02:21 +0000 (10:02 +0100)]
tools/python: fix TypeError for 17903:0728459b3c8d

If `hda' is used in domU config file and domain-0 has /dev/hda,
creating a domain failed by TypeError:

  File "//usr/lib/python/xen/xend/server/blkif.py", line 84, in
getDeviceDetails
    (device_path, devid) = blkif.blkdev_name_to_number(dev)
TypeError: unpack non-sequence

Signed-off-by: KUWAMURA Shin'ya <kuwa@jp.fujitsu.com>
17 years agoFix up python breakage for blkdev_name_to_number
Keir Fraser [Mon, 30 Jun 2008 09:01:44 +0000 (10:01 +0100)]
Fix up python breakage for blkdev_name_to_number

Signed-off-by: Chris Lalancette <clalance@redhat.com>
17 years agoblktap: link against libgcrypt rather than libcrypto
Keir Fraser [Mon, 30 Jun 2008 09:00:53 +0000 (10:00 +0100)]
blktap: link against libgcrypt rather than libcrypto

tapdisk, part of blktap, links against libcrypto. tapdisk includes
GPLv2 (tapaio.c) and other licensed code (block-qcow.c). The license
of OpenSSL is considered incompatible with the GPL by many
people. This patch changes them to link against libgcrypt, which is
LGPL.

Signed-off-by: Bastian Blank <waldi@debian.org>
17 years agox86: Px statistic update for cpu idle time.
Keir Fraser [Mon, 30 Jun 2008 08:59:39 +0000 (09:59 +0100)]
x86: Px statistic update for cpu idle time.

Update px statistic, subtract cx idle time from px residency time.

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
17 years agostubdom: add live migration support by having ioemu just notify the
Keir Fraser [Mon, 30 Jun 2008 08:57:27 +0000 (09:57 +0100)]
stubdom: add live migration support by having ioemu just notify the
hypervisor about memory changes.

The impact on disk performance is typically making it from 71.5MBps
down to 70.5Mbps during the live migration. The impact on network
performance is actually even hard to measure.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agostubdom: fix libc-verbose non-lwip compilation
Keir Fraser [Mon, 30 Jun 2008 08:51:34 +0000 (09:51 +0100)]
stubdom: fix libc-verbose non-lwip compilation

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agox86: Fix 32-bit build after VT-d cleanups.
Keir Fraser [Sat, 28 Jun 2008 15:29:00 +0000 (16:29 +0100)]
x86: Fix 32-bit build after VT-d cleanups.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86: Fix 32-bit build.
Keir Fraser [Fri, 27 Jun 2008 16:54:27 +0000 (17:54 +0100)]
x86: Fix 32-bit build.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86: Emulation of LMSW must only affect CR0 bits 0-3.
Keir Fraser [Fri, 27 Jun 2008 16:24:54 +0000 (17:24 +0100)]
x86: Emulation of LMSW must only affect CR0 bits 0-3.
Emulation of SMSW is only restricted to 16-bit operation on memory
operands.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agohvm: Fix lmsw handling
Keir Fraser [Fri, 27 Jun 2008 15:20:59 +0000 (16:20 +0100)]
hvm: Fix lmsw handling

The lmsw instruction can be used to set CR0_PE, but can never clear
it, once set.

Signed-off-by: Trolle Selander <trolle.selander@eu.citrix.com>
17 years agox86: Add cpufreq logic to S3 suspend/resume
Keir Fraser [Fri, 27 Jun 2008 15:16:47 +0000 (16:16 +0100)]
x86: Add cpufreq logic to S3 suspend/resume

When suspend to S3, stop the cpufreq dbs governor. When resume from
S3, firstly sync cpu state and freq at the 1st dbs timer; from 2nd dbs
timer on, cpufreq dbs governor control cpu px transfer according to
its workload algorithm. Px statistic is also handled.

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
17 years agoUpdate changelog for xvd blkdev naming extensions.
Keir Fraser [Fri, 27 Jun 2008 15:12:14 +0000 (16:12 +0100)]
Update changelog for xvd blkdev naming extensions.
Signed-off-by: Chris Lalancette <clalance@redhat.com>
17 years agotools/python: blkdev_name_to_number fixes
Keir Fraser [Fri, 27 Jun 2008 15:09:58 +0000 (16:09 +0100)]
tools/python: blkdev_name_to_number fixes

Rework blkdev_name_to_number to allow the tools to attach xvd disks
beyond xvdp.

 1.  Adds the handling for the /dev/xvd[q-z] and /dev/xvd[a-i][a-z]
     extended devices

 2.  Changes blkdev_name_to_number() to return a tuple of (xenbus,
     devnum), and then deals with the resulting fallout.

Signed-off-by: Chris Lalancette <clalance@redhat.com>
17 years agoblktap: Extend userland busid to 32 bits
Keir Fraser [Fri, 27 Jun 2008 15:08:56 +0000 (16:08 +0100)]
blktap: Extend userland busid to 32 bits

Signed-off-by: Chris Lalancette <clalance@redhat.com>
17 years agohvm rombios: Move function calls out of 'post' function section
Keir Fraser [Fri, 27 Jun 2008 13:43:29 +0000 (14:43 +0100)]
hvm rombios: Move function calls out of 'post' function section

Through recent additions to the rombios the code section of the post
function has filled up considerably. When I enable the BX_TCGBIOS
compile time option the BIOS crashes since the post section code
(starts at $e05b) spills over into the nmi entry point (starts at
$e2c3). as86 doesn't cause an error when building.

Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
17 years agovt-d: Clean up variable types and remove useless variables
Keir Fraser [Fri, 27 Jun 2008 13:40:47 +0000 (14:40 +0100)]
vt-d: Clean up variable types and remove useless variables

Signed-off-by: Weidong Han <weidong.han@intel.com>
17 years agoshadow: Re-initialise page_info's lock field when freeing shadow pages.
Keir Fraser [Fri, 27 Jun 2008 13:38:41 +0000 (14:38 +0100)]
shadow: Re-initialise page_info's lock field when freeing shadow pages.

Fixes boot failure of xenU after destroying a HVM guest.

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoioemu: Clean up after cset 17646:e3b13e1ecf6c
Keir Fraser [Fri, 27 Jun 2008 13:16:53 +0000 (14:16 +0100)]
ioemu: Clean up after cset 17646:e3b13e1ecf6c

Remove redundant code.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
17 years agohvmloader: Set up any Intel ICH for legacy IDE.
Keir Fraser [Fri, 27 Jun 2008 13:15:11 +0000 (14:15 +0100)]
hvmloader: Set up any Intel ICH for legacy IDE.
Signed-off-by: Li Zhang <li.zhang@intel.com>
17 years agovt-d: Minor fixing of interrupt remapping
Keir Fraser [Fri, 27 Jun 2008 13:11:41 +0000 (14:11 +0100)]
vt-d: Minor fixing of interrupt remapping
When ir_ctrl->iremap_index == -1, it means there is no remap
entry. So it needn't to convert from remap format to normal ioapic
format.

Signed-off-by: Weidong Han <weidong.han@intel.com>
17 years agotapdisk: Fix qcow2 for images > 2 GB
Keir Fraser [Fri, 27 Jun 2008 13:03:52 +0000 (14:03 +0100)]
tapdisk: Fix qcow2 for images > 2 GB

Signed-off-by: Kevin Wolf <kwolf@suse.de>
17 years agox86, shadow: Fix OOS bug on domain teardown.
Keir Fraser [Fri, 27 Jun 2008 12:45:55 +0000 (13:45 +0100)]
x86, shadow: Fix OOS bug on domain teardown.
Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
17 years agoPV-GRUB: fix reiserfs 64bit support
Keir Fraser [Fri, 20 Jun 2008 17:42:45 +0000 (18:42 +0100)]
PV-GRUB: fix reiserfs 64bit support

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agoOut-of-sync L1 shadows: always unsync pages on guest writes.
Keir Fraser [Fri, 20 Jun 2008 17:41:50 +0000 (18:41 +0100)]
Out-of-sync L1 shadows: always unsync pages on guest writes.

Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
17 years agoOut-of-sync L1 shadows: OOS snapshot.
Keir Fraser [Fri, 20 Jun 2008 17:41:09 +0000 (18:41 +0100)]
Out-of-sync L1 shadows: OOS snapshot.

Make snapshots of guest pages on unsync to allow faster revalidation
of OOS pages.

Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
17 years agoOut-of-sync L1 shadows: Fixup Tables
Keir Fraser [Fri, 20 Jun 2008 17:40:32 +0000 (18:40 +0100)]
Out-of-sync L1 shadows: Fixup Tables

This patch implement a very simple non complete reverse map for OOS
pages writable mappings to avoid shadow brute-force search on resyncs.

Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
17 years agoOut-of-sync L1 shadows: OOS base
Keir Fraser [Fri, 20 Jun 2008 17:39:45 +0000 (18:39 +0100)]
Out-of-sync L1 shadows: OOS base

This patch implements the basic mechanisms to get pagetables out of
sync and back in sync again.

Signed-off-by: Gianluca Guida <gianluca.guida@eu.citrix.com>
Signed-off-by: Tim Deegan <tim.deegan@eu.citrix.com>
Signed-off-by: George Dunlap <george.dunlap@eu.citrix.com>
17 years agoPV-GRUB: compilation fix caused by 17880
Keir Fraser [Fri, 20 Jun 2008 17:37:29 +0000 (18:37 +0100)]
PV-GRUB: compilation fix caused by 17880

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agoAMD PowerNow! in Xen
Keir Fraser [Fri, 20 Jun 2008 17:02:46 +0000 (18:02 +0100)]
AMD PowerNow! in Xen

This patch set moves support for AMD's PowerNow! technology from
dom0 into the hypervisor, now that there is support for
transferring ACPI data to the hypervisor.  It will only work for
AMD processors that support the architectural P-state driver,
such as 3rd generation Opterons, Phenoms, and Turion Ultras.

This patch creates the Architectural P-state driver inside
of the Xen hypervisor and hooks it into the Xen code.  It
has been tested at AMD with a variety of para- and fully-
virtualized guests for a week without regressions.

Signed-off-by: Mark Langsdorf <mark.langsdorf@amd.com>
Acked-by: Conny Seidel <conny.seidel@amd.com>
17 years agominios: fix add_id_to_freelist(0)
Keir Fraser [Fri, 20 Jun 2008 16:45:23 +0000 (17:45 +0100)]
minios: fix add_id_to_freelist(0)

add_id_to_freelist(0) would make get_id_from_freelist() always return 0.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agominios: do not systematically free the page under shared info, as the
Keir Fraser [Fri, 20 Jun 2008 16:44:50 +0000 (17:44 +0100)]
minios: do not systematically free the page under shared info, as the
guest booted by PV-GRUB will need it.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agoClean up domain_create() interface.
Keir Fraser [Fri, 20 Jun 2008 14:21:26 +0000 (15:21 +0100)]
Clean up domain_create() interface.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86 acpi: Clean up output tracing. Ensure it is synced to serial line
Keir Fraser [Fri, 20 Jun 2008 14:21:04 +0000 (15:21 +0100)]
x86 acpi: Clean up output tracing. Ensure it is synced to serial line
before entering Sx state.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years ago[IA64] compilation fix caused by 17880:d3a87899985d
Keir Fraser [Fri, 20 Jun 2008 11:26:23 +0000 (12:26 +0100)]
[IA64] compilation fix caused by 17880:d3a87899985d

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
17 years agoCompilation fix for x86_64 caused by 17880:d3a87899985d.
Keir Fraser [Fri, 20 Jun 2008 11:18:10 +0000 (12:18 +0100)]
Compilation fix for x86_64 caused by 17880:d3a87899985d.
Signed-off-by: Jean Guyader <jean.guyader@eu.citrix.com>
17 years agolibxc: The following patch replace the libxc interface to use
Keir Fraser [Thu, 19 Jun 2008 15:15:05 +0000 (16:15 +0100)]
libxc: The following patch replace the libxc interface to use
vcpu_guest_context_any_t (which is both 32 and 64 bits) instead of
vcpu_guest_context_t.

Signed-off-by: Jean Guyader <jean.guyader@eu.citrix.com>
17 years agovmx: Clean up and fix guest MSR load/save handling:
Keir Fraser [Thu, 19 Jun 2008 10:09:10 +0000 (11:09 +0100)]
vmx: Clean up and fix guest MSR load/save handling:
 1. msr_bitmap/msr_area/msr_host_area must be freed when a vcpu is
    destroyed
 2. vmx_create_vmcs()/vmx_destroy_vmcs() are only ever called once,
    and can hence be simplified slightly
 3. Change vmx_*_msr() interfaces to make it crystal clear that they
    operate only on current (hence safe against vmwrite() and also
    against concurrency races).
 4. Change vmx_add_*_msr() implementation to make it crystal clear
    that msr_area is not dereferenced before it is allocated.

Only (1) is a bug fix. (2)-(4) are for code clarity.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years ago[IA64] remove some #ifndef XEN using empty headerfiles.
Isaku Yamahata [Thu, 19 Jun 2008 03:48:04 +0000 (12:48 +0900)]
[IA64] remove some #ifndef XEN using empty headerfiles.

move mm_numa.c from linux-xen to linux because now mm_numa.c is
identical to linux files.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
17 years ago[IA64] remove unnecessary ia64_ksyms.c.
Isaku Yamahata [Thu, 19 Jun 2008 03:48:04 +0000 (12:48 +0900)]
[IA64] remove unnecessary ia64_ksyms.c.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
17 years agox86: Must use a softirq to defer dom0 NMI
Keir Fraser [Wed, 18 Jun 2008 13:17:10 +0000 (14:17 +0100)]
x86: Must use a softirq to defer dom0 NMI
notification. tasklet_schedule() contains a spinlock and is unsafe in
NMI context.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoioemu: Fix usbdevice parameter to encode vbd type.
Keir Fraser [Wed, 18 Jun 2008 10:55:34 +0000 (11:55 +0100)]
ioemu: Fix usbdevice parameter to encode vbd type.

   usbdevice = "disk:<filename>"
expect a raw device (as this probably is the most usual case) and
   usbdevice = "disk-qcow:<filename>"
expect a COW image (autodetected, probably qcow2).

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
17 years agox86: Intel wants the TSS busy flag set when we do a vmentry.
Keir Fraser [Wed, 18 Jun 2008 08:46:36 +0000 (09:46 +0100)]
x86: Intel wants the TSS busy flag set when we do a vmentry.

Signed-off-by: Jean Guyader <jean.guyader@eu.citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoioemu: generic PCI device config-space emulation
Keir Fraser [Wed, 18 Jun 2008 08:40:39 +0000 (09:40 +0100)]
ioemu: generic PCI device config-space emulation

This patch is an extension for qemu-dm to enable emulation of generic
PCI devices. The information for the PCI devices can be passed by
command line parameter.

The command line parameter is "-pciemulation" followed by the
information which contains a label and hex value of the configuration
registers separated by ":".

The configuration registers for each PCI device are below.
vendorid
deviceid
command
status
revision
classcode
headertype
subvendorid
subsystemid
interruputline
interruptpin

This is an example of command line parameter.

 -pciemulation hba1:1240:0780:0002:0:0:010000:0:10b5:0777:05:1

Signed-off-by: Shinji Matsumoto <smatsumoto@marathontechnologies.com>
17 years agoioemu: Disable format auto-probing in monitor command change
Keir Fraser [Wed, 18 Jun 2008 08:39:14 +0000 (09:39 +0100)]
ioemu: Disable format auto-probing in monitor command change

Format auto-probing of writable images is a security hole.  The last
known remaining instance is monitor command change.  Disable probing
there and use raw.  This breaks change for images in all other
formats.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
17 years agominios: fix gnttab allocation boundary
Keir Fraser [Wed, 18 Jun 2008 08:38:11 +0000 (09:38 +0100)]
minios: fix gnttab allocation boundary

The gnttab_sem is already fed during initialization's put_free_entry
loop.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agodoc: Describes a generic 686 via the cpuid configure.
Keir Fraser [Wed, 18 Jun 2008 08:37:40 +0000 (09:37 +0100)]
doc: Describes a generic 686 via the cpuid configure.

Signed-off-by: Jean Guyader <jean.guyader@eu.citrix.com>
17 years agoAdd PV-GRUB
Keir Fraser [Wed, 18 Jun 2008 08:36:47 +0000 (09:36 +0100)]
Add PV-GRUB

This fetches GRUB1 sources, applies the {graphical, print function,
save default, and ext3_256byte} patches from debian, and applies a
patch to make it work on x86_64 and port it to Mini-OS.  By using
libxc, PV-GRUB can then "kexec" the loaded kernel from inside the
domain itself, hence permitting to avoid the security-concerned
pygrub.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agominios: fix declaration after code
Keir Fraser [Wed, 18 Jun 2008 08:35:06 +0000 (09:35 +0100)]
minios: fix declaration after code

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agomm.c: use local variable domain pointer
Keir Fraser [Wed, 18 Jun 2008 08:34:26 +0000 (09:34 +0100)]
mm.c: use local variable domain pointer
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
17 years agostubdom: fix using minios frontends directly when libc is actived
Keir Fraser [Wed, 18 Jun 2008 08:32:50 +0000 (09:32 +0100)]
stubdom: fix using minios frontends directly when libc is actived

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agominios,stubdom: Add OBJ_DIR parameter to compile outside sources,
Keir Fraser [Tue, 17 Jun 2008 08:36:25 +0000 (09:36 +0100)]
minios,stubdom: Add OBJ_DIR parameter to compile outside sources,
which permits to easily compile mini-os in various flavors. Also clean
some parts of stubdom build.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years agoioemu: move xenfb frontend (used by stubdom) to its own file, since it
Keir Fraser [Tue, 17 Jun 2008 08:35:36 +0000 (09:35 +0100)]
ioemu: move xenfb frontend (used by stubdom) to its own file, since it
does not really belong to hw/, but to /, like sdl.c and vnc.c.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
17 years ago[IA64] trivial compilation fix caused by c/s 17847:8a0415fac759.
Keir Fraser [Mon, 16 Jun 2008 15:35:17 +0000 (16:35 +0100)]
[IA64] trivial compilation fix caused by c/s 17847:8a0415fac759.

This patch fixes the following compilation error caused
by c/s 17847:8a0415fac759.

machine_kexec.c: In function 'arch_crash_save_vmcoreinfo':
machine_kexec.c:201: error: 'frametable_pg_dir' undeclared (first use in this function)
machine_kexec.c:201: error: (Each undeclared identifier is reported only once
machine_kexec.c:201: error: for each function it appears in.)

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
17 years agovmx: Allow restore of context from a non-Intel processor. In
Keir Fraser [Mon, 16 Jun 2008 14:22:41 +0000 (15:22 +0100)]
vmx: Allow restore of context from a non-Intel processor. In
particular, VMX requires segment 'granularity' to be set correctly, so
we force it if need be in vmx_set_segment_register().

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoamd svm: Do not touch (non-existent) attr and selector fields for GDTR
Keir Fraser [Mon, 16 Jun 2008 14:21:49 +0000 (15:21 +0100)]
amd svm: Do not touch (non-existent) attr and selector fields for GDTR
and IDTR in the VMCB in svm_set_segment_register(). This is just for
clarity of code and to prevent any issues in the future.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agovt-d: Quieten down overzealous logging.
Keir Fraser [Mon, 16 Jun 2008 10:49:15 +0000 (11:49 +0100)]
vt-d: Quieten down overzealous logging.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86_emulate: Fix the segment-load function
Keir Fraser [Mon, 16 Jun 2008 10:24:17 +0000 (11:24 +0100)]
x86_emulate: Fix the segment-load function

Fix the non-conforming type check and uses the consistent method to
fetch the cpl value as function get_cpl().

Also make sure vm86 mode is properly handled when determining whether
in real mode or protected mode -- in various respects vm86 mode can
act like both.

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years ago32-on-64: Fix compat-access macros to use correct underlying HVM accessors.
Keir Fraser [Fri, 13 Jun 2008 15:10:50 +0000 (16:10 +0100)]
32-on-64: Fix compat-access macros to use correct underlying HVM accessors.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agopv-on-hvm: Fix panic-handler code to work on wider range of kernels.
Keir Fraser [Fri, 13 Jun 2008 14:31:35 +0000 (15:31 +0100)]
pv-on-hvm: Fix panic-handler code to work on wider range of kernels.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoBring back console_start_log_everything() as a milder alternative to
Keir Fraser [Fri, 13 Jun 2008 13:15:00 +0000 (14:15 +0100)]
Bring back console_start_log_everything() as a milder alternative to
console_start_sync(). Revert keyhandler logic to use it. The
difference now is that serial logic is updated to not drop characters
if inb a log_everything region. Still this is milder than a sync
region since the async buffer must be filled before we start to
busy-wait on each character.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years ago[ACM] Pass uuid to created policy
Keir Fraser [Fri, 13 Jun 2008 12:55:50 +0000 (13:55 +0100)]
[ACM] Pass uuid to created policy

A UUID needs to be passed to the created policy.

Signed-off-by: stefan Berger <stefanb@us.ibm.com>
17 years ago[ACM] Enable labeling of resources as inaccessible
Keir Fraser [Fri, 13 Jun 2008 12:55:19 +0000 (13:55 +0100)]
[ACM] Enable labeling of resources as inaccessible

Enable the labeling of (disk-type) resources with the special label
__INACCESSIBLE__ to prevent unlabeled domains from accessing them.

Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
17 years agohvm, 32-on-64: Allow a 32-bit x86 hvm guest access to any memory_op().
Keir Fraser [Fri, 13 Jun 2008 12:50:23 +0000 (13:50 +0100)]
hvm, 32-on-64: Allow a 32-bit x86 hvm guest access to any memory_op().
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoIntroduce guest_handle_subrange_okay() for checking sub-sections of an
Keir Fraser [Fri, 13 Jun 2008 12:49:56 +0000 (13:49 +0100)]
Introduce guest_handle_subrange_okay() for checking sub-sections of an
argument array. Needed where a compat shim is splitting up a 32-bit
guest's larger argument array, and only the currently-active part of
the translated array is contained within the compat_arg_xlat_area.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years ago32-on-64: Fix is_compat_arg_xlat_range().
Keir Fraser [Fri, 13 Jun 2008 12:48:13 +0000 (13:48 +0100)]
32-on-64: Fix is_compat_arg_xlat_range().
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years ago32-on-64: Fix error handling for XENMEM_decrease_reservation.
Keir Fraser [Fri, 13 Jun 2008 12:47:28 +0000 (13:47 +0100)]
32-on-64: Fix error handling for XENMEM_decrease_reservation.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoImprove serial output when dropping characters to drop them in big
Keir Fraser [Fri, 13 Jun 2008 10:39:42 +0000 (11:39 +0100)]
Improve serial output when dropping characters to drop them in big
batches. Printing one character in one thousand is not useful!

Also make debug handlers all print synchronously.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agokexec: Fix the 32-bit build.
Keir Fraser [Fri, 13 Jun 2008 10:21:58 +0000 (11:21 +0100)]
kexec: Fix the 32-bit build.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agohvm: Fix the realmode live migration issue with Intel EPT
Keir Fraser [Fri, 13 Jun 2008 09:13:25 +0000 (10:13 +0100)]
hvm: Fix the realmode live migration issue with Intel EPT

The patch save/restore the HVM_PARAM_IDENT_PT parameter, then the live
migration during real mode with EPT may work fine.

Signed-off-by: Xiaohui Xin <Xiaohui.xin@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agohvm: Fix max_mapped_pfn when using 2MB super pages.
Keir Fraser [Fri, 13 Jun 2008 08:56:49 +0000 (09:56 +0100)]
hvm: Fix max_mapped_pfn when using 2MB super pages.

Fixes booting Linux guest allocated more than 4G memory.
  - The p2m table will track the max_mapped_pfn, and while doing
    p2m_gfn_to_mfn(), if the gfn is higher than max_mapped_pfn, the
    function will return _mfn(INVALID_MFN). This makes the Linux guest
    kernel panic.

Signed-off-by: Xu Dongxiao <dongxiao.xu@intel.com>
17 years agoextract vmcoreinfo from /proc/vmcore for Xen
Keir Fraser [Fri, 13 Jun 2008 08:54:03 +0000 (09:54 +0100)]
extract vmcoreinfo from /proc/vmcore for Xen

- the machine address and the size of the vmcoreinfo area is returned
  via the kexec_op(get_range) hypercall
- fill the vmcoreinfo data when the kexec_op(crash load) hypercall
  is called

Signed-off-by: Itsuro Oda <oda@valinux.co.jp>
17 years agox86: remove use of per-domain lock from page table entry handling
Keir Fraser [Thu, 12 Jun 2008 17:14:00 +0000 (18:14 +0100)]
x86: remove use of per-domain lock from page table entry handling

This change results in a 5% performance improvement for kernel builds
on dual-socket quad-core systems (which is what I used for reference
for both 32- and 64-bit). Along with that, the amount of time reported
as spent in the kernel gets reduced by almost 25% (the fraction of
time spent in the kernel is generally reported significantly higher
under Xen than with a native kernel).

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86: Reduce page->shadow_flags to 32 bits so we can steal space for a
Keir Fraser [Thu, 12 Jun 2008 16:57:03 +0000 (17:57 +0100)]
x86: Reduce page->shadow_flags to 32 bits so we can steal space for a
spinlock_t (on 64-bit Xen) without expanding the page_info struct.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86: Do not use HPET in Cx state management since dom0 may need RTC
Keir Fraser [Thu, 12 Jun 2008 16:17:44 +0000 (17:17 +0100)]
x86: Do not use HPET in Cx state management since dom0 may need RTC
IRQ routing. This makes C3 unusable for now.

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agoxend: detect and report qemu-dm failure
Keir Fraser [Thu, 12 Jun 2008 16:01:31 +0000 (17:01 +0100)]
xend: detect and report qemu-dm failure

Currently, when qemu-dm fails, typically its exit status is lost and
xend doesn't notice.  In the patch below I use a fifo (named pipe) to
detect qemu-dm's termination and report the exit status to the
logfile, if possible.  (If xend has been restarted since the domain
was created, this isn't possible but we can still know that it failed
and report that fact.)

It would be better to have a failure of qemu crash the domain, by
calling the SCHEDOP_shutdown hypercall with SHUTDOWN_crash.  However
if you have on_crash=restart and the configuration is broken in some
way that causes qemu-dm to bomb out straight away this causes xend to
spin endlessly restarting the doomed domain.  This is a general
problem with on_*=restart and ought to be fixed separately.  When it
is fixed, we can safely arrange for domains whose dm has crashed to be
themselves forcibly crashed.

Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
17 years agodom0 state dump
Keir Fraser [Thu, 12 Jun 2008 15:55:09 +0000 (16:55 +0100)]
dom0 state dump

Since xenctx cannot (for obvious reasons) display the context of
dom0's vCPU-s, here are the beginnings of a console based mechanism to
achieve the same (useful if dom0 hangs with one or more de-scheduled
vCPU-s). The stack handling obviously needs improvement, but the
register context should come out fine in all cases.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
17 years agokeyhandler: When dumping all-CPU register state, wnter console sync
Keir Fraser [Thu, 12 Jun 2008 15:34:25 +0000 (16:34 +0100)]
keyhandler: When dumping all-CPU register state, wnter console sync
mode so we do not drop any critical debug data.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86: don't print dom0 initrd information twice
Keir Fraser [Thu, 12 Jun 2008 15:18:31 +0000 (16:18 +0100)]
x86: don't print dom0 initrd information twice
Signed-off-by: Jan Beulich <jbeulich@novell.com>
17 years agox86: minor adjustment to asm constraint in get_page()
Keir Fraser [Thu, 12 Jun 2008 15:17:19 +0000 (16:17 +0100)]
x86: minor adjustment to asm constraint in get_page()

While not wrong, avoiding the unnecessary output allows the compiler a
little more freedom.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
17 years agox86: add perf counter for pointless updates of writable pages through a hypercall
Keir Fraser [Thu, 12 Jun 2008 15:11:39 +0000 (16:11 +0100)]
x86: add perf counter for pointless updates of writable pages through a hypercall
Signed-off-by: Jan Beulich <jbeulich@novell.com>
17 years agox86: machine_halt() forcibly re-enables IRQs as it may be called from
Keir Fraser [Thu, 12 Jun 2008 15:09:08 +0000 (16:09 +0100)]
x86: machine_halt() forcibly re-enables IRQs as it may be called from
panic() which itself may be called in an IRQ-safe critical section.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86/32on64: fix physical address restriction
Keir Fraser [Thu, 12 Jun 2008 15:05:35 +0000 (16:05 +0100)]
x86/32on64: fix physical address restriction

The allocation bit size setting wasn't working anymore after the
recent fix to properly use PAGE_SHIFT instead of PAGE_SIZE. This was
because the bit size implies a power-of-two range that's accessible,
but if all memory is accessible anyway (and its upper boundary is not
a power of two), the domain would either be needlessly restricted or
wouldn't be able to allocate as much memory as was intended for it
(specifically the case for Dom0 without dom0_mem= boot
parameter). Consequently, don't restrict the bit width if all memory
can be accessed.

To avoid needing to adjust this code in two places in the future (it
may need further touching when memory hotplug gets supported), fold
the logic into a function.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
17 years agox86: simplify domain memory cleanup
Keir Fraser [Thu, 12 Jun 2008 14:47:45 +0000 (15:47 +0100)]
x86: simplify domain memory cleanup

Page table pages cannot come from the Xen heap, so there's no need to
special-case these during cleanup.

Signed-off-by: Jan Beulich <jbeulich@novell.com>
17 years ago[IA64] re-add efi support to acpi_os_get_root_pointer()
Keir Fraser [Thu, 12 Jun 2008 14:44:21 +0000 (15:44 +0100)]
[IA64] re-add efi support to acpi_os_get_root_pointer()

On ia64 RSDP address is obtained from efi table instead of
memory scan. Otherwise it may use wrong table to fail to find
tables.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
17 years ago[IA64] compilation fix caused by 17814:9af7a535225f
Keir Fraser [Thu, 12 Jun 2008 14:42:09 +0000 (15:42 +0100)]
[IA64] compilation fix caused by 17814:9af7a535225f

ia64 compliation fix caused by 17814:9af7a535225f.
- generate_acpi_checksum() is replaced by acpi_tb_checksum()
- move dump_execution_state() definitions from asm-ia64/xenprocessor.h
  to asm-ia64/bug.h

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
17 years agotools: replace sprintf with snprintf where applicable
Keir Fraser [Thu, 12 Jun 2008 14:41:15 +0000 (15:41 +0100)]
tools: replace sprintf with snprintf where applicable

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>