added PFN-GMFN table for non-auto translated physmap
added PFN table for auto translated physmap.
HVM domain support.
IA64 support
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Use the guest's own p2m table instead of xc_get_pfn_list(), which
cannot handle PFNs with no MFN.
Dump a zeroed page for PFNs with no MFN.
Clearly deprecate xc_get_pfn_list().
Do not include a P2M table with HVM domains.
Refuse to dump HVM until we can map its pages with PFNs.
Signed-off-by: John Levon <john.levon@sun.com>
XC_INVALID_PARAM
such as asking for features unsupported by either xen or guest kernel.
XC_OUT_OF_MEMORY
no comment ;)
Signed-off-by: Gerd Hoffmann <kraxel@suse.de>
---
tools/libxc/xc_private.c | 4 ++++
tools/libxc/xenctrl.h | 2 ++
2 files changed, 6 insertions(+)
This kills off a fair amount of unpleasant CONFIG_COMPAT shimming and
avoids needing to keep the compat paths in sync as these interfaces
continue to develop.
Signed-off-by: Keir Fraser <keir@xensource.com>
The idea is that this file is where we will have two implementations
of 'suspend cancellation': one which the guest is aware of (and is
faster) and the other which does more work to avoid requiring guest
modifications.
Signed-off-by: Keir Fraser <keir@xensource.com>
It's a long story, but basically a small divergence in xenppc-unstable meant a
large number of changesets couldn't be directly imported to xen-unstable, so
this changeset includes all of them.
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com>
be returned by XENMEM_memory_map. Hook this into the domain builder.
Based on a patch by Glauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
- An 'xc_error' struct is used to pass around error
details. Currently contains two members 'code' an enumeration of
error types, and 'message' a free text description of the specific
problem.
- The xc_get_last_error() method returns a const pointer to the
internal instance of this struct manged by libxc. By returning a
const pointer we can add extra members to the end of the struct at
any time without worrying about ABI of callers. This will let us
provide more fine-grained info if needed in the future.
- The xc_error instance is statically defined inside libxc and marked
__thread. This ensures that errors are recorded per-thread, and
that when dealing with errors we never need to call malloc - all
storage needed is statically allocated.
- The xc_clear_last_error() method resets any currently recorded
error details
- The xc_error_code_to_desc() method converts the integer error code
into a generic user facing messsage. eg "Invalid kernel". Together
with the 'message' field from xc_error, this provides the user
visible feedback. eg "Invalid kernel: Non PAE-kernel on PAE host."
- A callback can be registered with xc_set_error_handler to receive
notification whenever an error is recorded, rather than querying
for error details after the fact with xc_get_last_error
- If built with -DDEBUG set, a default error handler will be
registered which calls fprintf(stderr), thus maintaining current
behaviour of logging errors to stderr during developer builds.
- The python binding for libxc is updated to use xc_get_last_error
to pull out error details whenever appropriate, instead of
returning info based on 'errno'
- The xc_set_error method is private to libxc internals, and is used
for setting error details
- The ERROR and PERROR macros have been updated to call xc_set_error
automatically specifying XC_INTERNAL_ERROR as the error code. This
gives a generic error report for all current failure points
- Some uses of the ERROR macro have been replaced with explicit
calls to xc_set_error to enable finer grained error reporting. In
particular the code dealing with invalid kernel types uses this
to report about PAE/architecture/wordsize mismatches
The patch has been tested by calling xm create against a varietry of
config files defining invalid kernels of various kinds. It has also
been tested with libvirt talking to xend. In both cases the error
messages were propagated all the way back up the stack.
There is only one place where I need to do further work. The suspend
& restore APIs in Xend invoke external helper programs rather than
calling libxc directly. This means that error details are essentially
lost. Since there is already code in XenD which scans STDERR from
these programs I will investigate adapting this to extract actual
error messages from these helpers.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
1. Balloon driver does not need to set M2P entry.
This is done by the populate_physmap hypercall.
2. Xen now translates foreign mappings from GMFN->MFN.
Tools are simplified because of this.
Signed-off-by: Keir Fraser <keir@xensource.com>
TODO:
1. Fix IO-APIC ID to not conflict with LAPIC IDS.
2. Fix i8259 device model (seems to work already though!).
3. Add INTSRC overrides in MPBIOS and ACPI tables so
that PCI legacy IRQ routing always ends up at an
IO-APIC input with level trigger. Restricting link
routing to {5,6,10,11} and setting overrides for all
four of those would work.
Signed-off-by: Keir Fraser <keir@xensource.com>
This simplifies the IRQ logic significantly and avoids the bogus
hvm_pic_assist() on domain resume path.
There is more work to be done here. At least:
1. set-irq-level should really be set-interrupt-wire-level. Wire
state needs to be distinguished from PIC (in particular, PIC IRR)
state.
2. Hypercalls can be batched in qemu and pushed down in one
multicall.
Signed-off-by: Keir Fraser <keir@xensource.com>
This cleans up HVM start-of-day in Xen and means that the
HVM status of a domain is maintained from cradle to grave.
Signed-off-by: Keir Fraser <keir@xensource.com>
Also update the code in tools to create the device node if udev fails.
The tools now read the sysfs system to find the minor number needed.
Original patch from Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
1. platform_op -- used by dom0 kernel to perform actions on the
hardware platform (e.g., MTRR access, microcode update, platform
quirks, ...)
2. domctl -- used by management tools to control a specified domain
3. sysctl -- used by management tools for system-wide actions
Benefits include more sensible factoring of actions to
hypercalls. Also allows tool compatibility to be tracked separately
from the dom0 kernel. The assumption is that it will be easier to
replace libxenctrl, libxenguest and Xen as a matched set if the
dom0 kernel does not need to be replaced too (e.g., because that
would require vendor revalidation).
From here on we hope to maintain dom0 kernel compatibility. This
promise is not extended to tool compatibility beyond the existing
guarantee that compatibility will not be broken within a three-level
stable release [3.0.2, 3.0.3, etc.].
Signed-off-by: Keir Fraser <keir@xensource.com>
correct tool to use for hardware perfctr monitoring now.
Also remove unused xc_msr MSR accessor functions from libxenctrl.
Signed-off-by: Keir Fraser <keir@xensource.com>
Split and move xc_ia64_stubs.c into ia64/xc_ia64_hvm_build.c and
ia64/xc_ia64_stubs.c
Creates ia64/Makefile.
Clean up (static in const) in xc_ia64_hvm_build.c
Signed-off-by: Tristan Gingold <tristan.gingold@bull.net>
[whitespace cleanups in new files]
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
It is quite minimal
in its approach, satisfying the purposes of the paravirtualized
NetWare operating system as well as any others that expect the time
base to be provided in localtime.
Signed-off-by: Bruce Rogers <brogers@novell.com>
No longer open the device as non-blocking: all reads immediately follow
a select() on the device indicating it's ready to read.
Signed-off-by: John Levon <john.levon@sun.com>
pae_pgdir_above_4gb tp guests that have enabled this vmassist.
Control tools ensure all PAE page directories are below 4GB
unless the vmassist is enabled (triggered via an extended-cr3
option in guest Elf header).
Signed-off-by: Keir Fraser <keir@xensource.com>
**NOTE**: This obviates the need for lowmem_emergency_pool.
Unpriv guests no longer need to be able to allocate memory
below 4GB for PAE PDPTs.
Signed-off-by: Keir Fraser <keir@xensource.com>
with command-specific request structures. It aligns the ACM
hypercalls with the way parameters are passed in the event channel
hypercalls.
Advantages include backward-compatibility regarding old guests when
new calls are added and clarity of the code.
Signed-off by: Reiner Sailer <sailer@us.ibm.com>
