Keir Fraser [Wed, 28 Nov 2007 12:44:19 +0000 (12:44 +0000)]
x86_emulate: Emulate ENTER and LEAVE instructions.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Wed, 28 Nov 2007 12:42:17 +0000 (12:42 +0000)]
[Mini-OS] Catch NULL dereferences
Unmap page 0 (only used early at boot) so as to catch NULL dereferences.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Wed, 28 Nov 2007 12:41:41 +0000 (12:41 +0000)]
[Mini-OS] Fix strrchr() when string doesn't contain the character.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Wed, 28 Nov 2007 12:40:57 +0000 (12:40 +0000)]
[Mini-OS] Make gnttab allocation/free safe
Add a semaphore to protect gnttab_list from exhaustion, and disable
callbacks during allocation/free. Fix the network frontend accordingly.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Wed, 28 Nov 2007 12:34:11 +0000 (12:34 +0000)]
vt-d: Some fixes and cleanup of Intel iommu
This patch modifies domain id in __iommu_flush_context() and
__iommu_flush_iotlb() to be consistent consist with domain id set by
context_set_domain_id(), avoids setting NULL to address space root
and corrects macro cap_ndoms.
Signed-off-by: Weidong Han <weidong.han@intel.com>
Keir Fraser [Tue, 27 Nov 2007 12:49:16 +0000 (12:49 +0000)]
minios: Revert 16206:
7b5b65fbaf61 (xenbus wait fixup)
Already fixed by 14432:
f40079acf646.
Keir Fraser [Tue, 27 Nov 2007 12:45:08 +0000 (12:45 +0000)]
x86_emulate: Fix use-before-initialise warning.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 22:28:48 +0000 (22:28 +0000)]
vmx realmode: Slight finessing of an error path.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 22:20:21 +0000 (22:20 +0000)]
vmx realmode: When returning to protected mode we have to massage the
segment state to pass VMENTER's stringent 'sanity checks'.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 17:55:23 +0000 (17:55 +0000)]
vmx realmode: Emulate writes to control registers.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 17:54:54 +0000 (17:54 +0000)]
x86_emulate: Emulate LMSW and SMSW.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 16:57:57 +0000 (16:57 +0000)]
x86 emulate: Emulate atomic read-modify-write instructions as a
straightforward write. Hopefully multiprocessor synchronisation is not
relied upon in real mode!
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 16:47:10 +0000 (16:47 +0000)]
vmx realmode: Fix emulation of exception delivery (stack pointer must
be adjusted for FLAGS push), and fix up vmx_realmode() exit protocol
now that it is called from asm stub context.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 16:46:22 +0000 (16:46 +0000)]
x86_emulate: Emulate RETF and RETF imm16.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 15:32:54 +0000 (15:32 +0000)]
x86_emulate: Emulate CPUID and HLT.
vmx realmode: Fix decode & emulate loop, add hooks for CPUID, HLT and
WBINVD. Also do not hook realmode entry off of vmentry failure any
more.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Mon, 26 Nov 2007 13:54:45 +0000 (13:54 +0000)]
x86_emulate: Emulate LDS/LES/LFS/LGS/LSS.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 21:24:48 +0000 (21:24 +0000)]
vmx realmode: Detect and correctly plumb mmio accesses from emulated
realmode. Also correctly handle debug output to I/O port 0xe9.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 18:07:33 +0000 (18:07 +0000)]
x86_emulate: Emulate CMPS and SCAS string-compare instructions.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 18:06:30 +0000 (18:06 +0000)]
x86_emulate: Emulate IRET.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 18:05:56 +0000 (18:05 +0000)]
x86_emulate: Decode and emulate PUSHF/POPF.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 18:05:10 +0000 (18:05 +0000)]
x86_emulate: Allow emulated injection of exceptions and interrupts.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 12:43:13 +0000 (12:43 +0000)]
x86_emulate: Emulate far call/jmp. This completes emulation of Grp5.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 11:45:02 +0000 (11:45 +0000)]
vmx realmode: Support privileged EFLAGS updates in emulated realmode.
Also tweak debug tracing to be much less noisy. We can emulates tens
of thousands of instructions in rombios now.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 11:43:53 +0000 (11:43 +0000)]
vmx realmode: Plumb through I/O port accesses in emulated realmode.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sun, 25 Nov 2007 09:23:02 +0000 (09:23 +0000)]
vt-d: Fix iommu_map_page().
Signed-off-by: Weidong Han <weidong.han@intel.com>
Keir Fraser [Sat, 24 Nov 2007 22:33:38 +0000 (22:33 +0000)]
Remove unused bcopy() implementation.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 22:19:03 +0000 (22:19 +0000)]
Revert 16450:
5e8e82e80. Instead remove all arch-specific handling of
memcmp() and hence always use common/lib.c version.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 21:46:14 +0000 (21:46 +0000)]
vmx: Initial framework for real-mode emulation (disabled by default).
Still plenty to do:
- i/o emulation
- more instructions
- interrupt/exception delivery
- vm86 fast path
At this stage we can get three instructions into the rombios.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 21:40:19 +0000 (21:40 +0000)]
x86_emulate: Support most common segment load/save instructions.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 16:16:57 +0000 (16:16 +0000)]
x86: Fix read/write control-register in x86_emulate().
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:40:23 +0000 (13:40 +0000)]
vt-d: Some fixes of Intel iommu
This patch removes a wrong if condition judgement to setup rmrr
identify mapping for guests, and passes page count rather than address
size to iommu_flush_iotlb_psi().
Signed-off-by: Weidong Han <weidong.han@intel.com>
Signed-off-by: Anthony Xu <Anthony.xu@intel.com>
Keir Fraser [Sat, 24 Nov 2007 13:39:13 +0000 (13:39 +0000)]
[ACM] Remove aggregate set calculations for Domain-0
Since the pre_domain_create hook is called also for Dom-0, this
special case handling is not necessary any more.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
Keir Fraser [Sat, 24 Nov 2007 13:37:26 +0000 (13:37 +0000)]
Fix non-optimized compilation of Xen's memcmp
Even when using __builtin_memcmp, gcc may emit external references to
memcmp (when not optimizing for instance), so this #define does not
always provide a completely suitable memcmp().
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:31:39 +0000 (13:31 +0000)]
[Mini-OS] Fix domain blocking race
A callback which wakes a thread may happen between the moment
schedule() gives hand to the idle thread and the latter blocks the
domain. Idle hence needs to atomically check that no thread is
running and block, else awoken threads may have to wait up to 10
seconds.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:31:01 +0000 (13:31 +0000)]
[Mini-OS] Permit x86_64 trap handlers to return
Trap handlers sometimes fix the problem, so they need to be able to
return.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:29:20 +0000 (13:29 +0000)]
[Mini-OS] Make sure schedule() is called safely
If a thread tries to sleep from a callback or with callbacks disabled,
Mini-OS will completely lock, so make sure this never happens.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:28:54 +0000 (13:28 +0000)]
[Mini-OS] Fix netfront xmit overflow
Fix xmit overflow by making netfront_xmit sleep until
network_tx_buf_gc() frees an xmit request.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:28:27 +0000 (13:28 +0000)]
[Mini-OS] Fix net backend path leak
Free backend path after use.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:27:59 +0000 (13:27 +0000)]
[Mini-OS] Make wake_up callback-safe
As it may compete with event handlers waking wait queues, wake_up
needs to be callback-safe.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:27:32 +0000 (13:27 +0000)]
[Mini-OS] Fix init_waitqueue_entry
Fix initialization of thread_list in init_waitqueue_entry().
Signed-off-by: Samuel Thibault <samuel.thibault@xensource.com>
Keir Fraser [Sat, 24 Nov 2007 13:27:08 +0000 (13:27 +0000)]
[Mini-OS] Add init_SEMAPHORE
Add init_SEMAPHORE() to dynamically initialize semaphores.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:26:39 +0000 (13:26 +0000)]
[Mini-OS] Make semaphores callback-safe
One may want to use semaphores in event handlers to wake threads
waiting for a resource, so semaphores then need to be callback-safe.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Sat, 24 Nov 2007 13:23:22 +0000 (13:23 +0000)]
x86, hvm: Config option to allow vmxassist to be disabled.
hvmloader is modified to dynamically detect this, allowing possibility
of optional full vmxassist replacement in 3.2 stable branch in future.
Currently 'vmxassist=y' is not much use since no replacement is
implemented.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:42:44 +0000 (16:42 +0000)]
[Mini-OS] Add strrchr()
Add strrchr(), useful e.g. for grabbing the last part of a xenbus
path.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:42:23 +0000 (16:42 +0000)]
[Mini-OS] Add ENOTSUP
Add missing ENOTSUP by defining it to EOPNOTSUPP like in Linux.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:41:54 +0000 (16:41 +0000)]
[Mini-OS] Move _ctype into a module
Move the _ctype array into its own module, instead of having it
defined in a header.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:39:45 +0000 (16:39 +0000)]
vt-d: Fix ISA IRQ alias issue
When assign multiple devices to guest which uses PIC, ISA IRQ alias
may occur. This patch splits ISA IRQ and GSI eoi function. In ISA IRQ
eoi function, searches all assigned mirqs and does eoi for the
corresponding mirqs which match the eoi ISA IRQ. Therefore fix ISA IRQ
alias issue.
Signed-off-by: Weidong Han <weidong.han@intel.com>
Keir Fraser [Fri, 23 Nov 2007 16:25:59 +0000 (16:25 +0000)]
[Mini-OS] Make bind_virq return the port
Make bind_virq() return the port bound to the irq, which is useful
e.g. for masking/unmasking it.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:23:28 +0000 (16:23 +0000)]
[Mini-OS] Fix x86 arch_switch_thread
Fix x86 arch_switch_thread by making it pure assembly.
There were missing general register clobbers for x86_64, and BP should
theorically be clobbered too, but gcc does not believe that, so the
only simple safe solution is to use pure assembly.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:23:03 +0000 (16:23 +0000)]
[Mini-OS] Optimize get_current()
Let gcc perform the computation with SP itself, leading to yet better
code.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:22:36 +0000 (16:22 +0000)]
[Mini-OS] Fix stack closures
So as to make backtracing tools happy, correctly close x86 stacks for
new threads as well as on callback in the x86_32 case since there is
no unwind marker.
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 16:22:13 +0000 (16:22 +0000)]
[Mini-OS] Fix x86 initial stack alignment
This fixes the initial stack alignment for x86, which is required for
current to return a fine NULL instead of a random value or possibly
crash during initialization.
Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
Keir Fraser [Fri, 23 Nov 2007 11:58:11 +0000 (11:58 +0000)]
xend: Add support for NetBSD.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser [Thu, 22 Nov 2007 19:55:42 +0000 (19:55 +0000)]
hvm: Clean up VMCS/VMCB construction.
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Thu, 22 Nov 2007 19:23:40 +0000 (19:23 +0000)]
x86: emulate I/O port access breakpoints
Emulate the trapping on I/O port accesses when emulating IN/OUT.
Also allow 8-byte breakpoints on x86-64 (and on i686 if the hardware
supports them), and tighten the condition for loading debug registers
during context switch.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Thu, 22 Nov 2007 18:28:47 +0000 (18:28 +0000)]
x86: single step after instruction emulation
Inject single step trap after emulating instructions if guest's
EFLAGS.TF is set.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Thu, 22 Nov 2007 17:44:51 +0000 (17:44 +0000)]
acm: Fix an exit label.
Jump to a different error exit label if error occurs early in the
policy update process.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
Keir Fraser [Thu, 22 Nov 2007 17:43:29 +0000 (17:43 +0000)]
netfront/back: Specify interface allowing multicast address add/remove
requests to be passed from the frontend to the backend.
Signed-off-by: David Edmondson <dme@sun.com>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Thu, 22 Nov 2007 15:10:47 +0000 (15:10 +0000)]
[SVM] handle MC threshold registers for Barcelona
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser [Thu, 22 Nov 2007 14:16:25 +0000 (14:16 +0000)]
x86: make set_task_gate() x86-32-only since x86-64 doesn't have task gates.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Thu, 22 Nov 2007 14:12:47 +0000 (14:12 +0000)]
x86-64: access only 4 bytes a the reset vector location on smpboot.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Thu, 22 Nov 2007 14:04:44 +0000 (14:04 +0000)]
Header dependency fix.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Thu, 22 Nov 2007 10:44:54 +0000 (10:44 +0000)]
Merge with ia64 tree.
Keir Fraser [Thu, 22 Nov 2007 10:40:45 +0000 (10:40 +0000)]
libxc: Minor clean up of xc_core, and fix for -fstrict-overflow.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Keir Fraser [Thu, 22 Nov 2007 10:33:10 +0000 (10:33 +0000)]
hvm: Clean up CPUID 0x80000001 emulation. Filter out RDTSCP feature
and emulate with #UD on AMD.
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Alex Williamson [Wed, 21 Nov 2007 16:12:06 +0000 (09:12 -0700)]
merge with xen-unstable.hg (staging)
Keir Fraser [Wed, 21 Nov 2007 14:36:07 +0000 (14:36 +0000)]
x86: rmb() can be weakened according to new Intel spec.
Both Intel and AMD agree that, from a programmer's viewpoint:
Loads cannot be reordered relative to other loads.
Stores cannot be reordered relative to other stores.
Intel64 Architecture Memory Ordering White Paper
<http://developer.intel.com/products/processor/manuals/318147.pdf>
AMD64 Architecture Programmer's Manual, Volume 2: System Programming
<http://www.amd.com/us-en/assets/content_type/\
white_papers_and_tech_docs/24593.pdf>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Wed, 21 Nov 2007 14:27:38 +0000 (14:27 +0000)]
x86: Re-factor and clean up system.h.
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Wed, 21 Nov 2007 12:00:20 +0000 (12:00 +0000)]
i386: Remove unnecessary, and broken, address check I added to seg
fixup code. Oops.
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Wed, 21 Nov 2007 11:49:41 +0000 (11:49 +0000)]
i386: adjustment to segment fixup code.
Clean up and support more instructions.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Keir Fraser [Wed, 21 Nov 2007 11:38:51 +0000 (11:38 +0000)]
x86: Make IDT/GDT/LDT updates safe.
This involves either determining that the entry will not be
read/written while the update takes place, or atomically making the
entry 'present', or doing the entire write atomically, as appropriate.
This issue raised, and original patch provided, by Jan Beulich.
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Wed, 21 Nov 2007 09:52:04 +0000 (09:52 +0000)]
ioemu: Add e100 NIC support. Req'd for w2k3/IA64.
Signed-off-by: Zhang Xin <xing.z.zhang@intel.com>
Keir Fraser [Wed, 21 Nov 2007 09:49:09 +0000 (09:49 +0000)]
hvm: Do not crash guest if it does an unaligned access to an HPET
register. Some CrashMe test apaprently does this and we don't want
that to crash the domain it runs in.
From: Dexuan Cui <dexuan.cui@intel.com>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Wed, 21 Nov 2007 09:45:22 +0000 (09:45 +0000)]
Remove unused smpboot.h header file.
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Alex Williamson [Tue, 20 Nov 2007 18:53:44 +0000 (11:53 -0700)]
merge with xen-unstable.hg (staging)
Keir Fraser [Tue, 20 Nov 2007 17:26:48 +0000 (17:26 +0000)]
xen: Allow granting of foreign access to iomem pages, and with
arbitrary cache attributes.
Signed-off-by: Kieran Mansley <kmansley@solarflare.com>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Alex Williamson [Tue, 20 Nov 2007 16:28:15 +0000 (09:28 -0700)]
[IA64] vti save-restore: save.h clean up
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Alex Williamson [Tue, 20 Nov 2007 16:21:27 +0000 (09:21 -0700)]
[IA64] vti save-restore: save/restore opt_feature status
Make hvm domain save/restore support opt_feature.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Alex Williamson [Tue, 20 Nov 2007 16:14:43 +0000 (09:14 -0700)]
[IA64] vti save-restore: preparation opt_feature support
Pass struct domain* to domain_opt_feature().
This patch is preparation patch for HVM domain save/restore opt_feature.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Alex Williamson [Tue, 20 Nov 2007 16:11:15 +0000 (09:11 -0700)]
[IA64] vti save-restore: fix opt_feature hypercall
- Fix XEN_IA64_OPTF_IDENT_MAP_REG[457] definitions.
- SMP fix. writing to domain->arch.opt_feature is racy.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Alex Williamson [Tue, 20 Nov 2007 15:46:24 +0000 (08:46 -0700)]
[IA64] vti save-restore: fix vacpi_save()
Always returned 0.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Keir Fraser [Tue, 20 Nov 2007 15:34:25 +0000 (15:34 +0000)]
x86, 32-on-64: Improve checking in vcpu_destroy_pagetables(). It *is*
possible for 64-bit guest to have matching guest_table and
guest_table_user.
Original patch by John Levon <levon@movementarian.org>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Tue, 20 Nov 2007 15:18:09 +0000 (15:18 +0000)]
xenapi: Extension to get vif total i/o stats.
From: Stefan de Konink <skinkie@xs4all.nl>
Signed-off-by: Keir Fraser <keir.fraser@eu.citrix.com>
Keir Fraser [Tue, 20 Nov 2007 15:13:29 +0000 (15:13 +0000)]
ACM: Test sharing as part of the authorization check.
Protected the policy from being changed while the hooks are being
called.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
Keir Fraser [Tue, 20 Nov 2007 15:05:36 +0000 (15:05 +0000)]
svm: Fix __update_guest_eip() to clear interrupt shadow.
Get rid of assertions about return value of get_instruction_length()
-- instead test in __update_guest_eip() and crash the domain.
Cache value of 'current' in svm_do_hlt().
The mismanagement of the interrupt shadow was found by Christoph
Egger of AMD.
Signed-off-by: Keir Fraser <keir@xensource.com>
Keir Fraser [Tue, 20 Nov 2007 14:35:36 +0000 (14:35 +0000)]
xen: Domain0 builder should set start_info magic string to
'xen-3.0-...' just like user-space builder for domUs.
Signed-off-by: Keir Fraser <keir@xensource.com>
Keir Fraser [Sat, 17 Nov 2007 13:11:25 +0000 (13:11 +0000)]
x86: Move log-dirty-mode assertion to correct place.
Signed-off-by: Keir Fraser <keir@xensource.com>
Keir Fraser [Fri, 16 Nov 2007 20:06:15 +0000 (20:06 +0000)]
Log dirty radix tree code cleanup. Also do not deference non-existent
pointer in paging_new_log_dirty_*() functions if allocation fails.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Fri, 16 Nov 2007 19:07:46 +0000 (19:07 +0000)]
hvm: RTC emulation - RTC_UIE/RTC_SET fix
This patch fixes a bug in the RTC code which appears to originate in
having written the emuated device following an incorrect
specification. VMware has (or had, at least, at the time we were still
testing on both VMWare and Xen) the same issue. In the current code,
when RTC_SET is set, RTC_UIE is cleared. This does not match the
behavior of real hardware, where the case is simply that no update
ended interrupts are sent as long as RTC_SET is set, but the UE ints
will resume as soon as RTC_SET is cleared and the clock update is
done. This little patch fixes this issue. In practicality, this means
OS/2 can now set the time without having the clock stop. I don't know
if any other guests have been affected by this issue.
From: Trolle Selander <trolle.selander@gmail.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Fri, 16 Nov 2007 18:33:24 +0000 (18:33 +0000)]
hvm: make dirty logging stop requiring physical pages of order > 0
This patch re-implements the (x86) hypervisor dirty page log with a
simple four-level radix tree whose nodes are all single pages, thus
making migration require only order-0 pages (where before it required
at least an order-5 page).
Unlike the p2m radix tree implementation, the interior nodes of this
tree are NOT page table nodes. I chose a lazy-allocation and -mapping
approach because most pages are not marked dirty while dirty-logging is
enabled. There are doubtless situations (the 'stream' benchmark, for
example) where a more complex p2m-like approach is faster, but I'm not
sure they're worth the effort.
Signed-off-by: Dave Lively <dlively@virtualiron.com>
Keir Fraser [Fri, 16 Nov 2007 17:59:34 +0000 (17:59 +0000)]
x86: Clean up some files of inline asm, and fix
__copy_{to,from}_user_ll() for gcc 3.4 (asm output constraints all
need to be '=&').
Based on a patch by Jan Beulich.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Keir Fraser [Fri, 16 Nov 2007 17:09:53 +0000 (17:09 +0000)]
hvm passthru: Uses of XC_PAGE_MASK should be XC_PAGE_SIZE-1.
Signed-off-by: Weidong Han <weidong.han@intel.com>
Keir Fraser [Fri, 16 Nov 2007 17:08:05 +0000 (17:08 +0000)]
xentrace: make xentrace and xenmon work on Solaris and *BSD.
- Use getopt() to get rid of argp dependency which does not exist
on Solaris and *BSD. Done by Tariq Magdon-Ismail.
- Minor modifications by me (Christoph) to make it also work on *BSD.
- Tested on Linux by me (Christoph). No functional change on Linux.
- Tariq ok'd BSD modifications for Solaris
- Tariq ok'd submission by me :)
Signed-off-by: Tariq Magdon-Ismail <tariqmi@sun.com>
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser [Fri, 16 Nov 2007 17:05:20 +0000 (17:05 +0000)]
xentrace: Fix TypeError handling of xentrace_format.
Signed-off-by: Yosuke Iwamatsu <y-iwamatsu@ab.jp.nec.com>
Keir Fraser [Fri, 16 Nov 2007 17:03:46 +0000 (17:03 +0000)]
qemu: more verbose on failures.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Keir Fraser [Fri, 16 Nov 2007 17:01:50 +0000 (17:01 +0000)]
vt-d: Clean up VT-d code
Signed-off-by: Weidong Han <weidong.han@intel.com>
Keir Fraser [Fri, 16 Nov 2007 16:53:43 +0000 (16:53 +0000)]
pvfb: PVFB SDL backend chokes on bogus screen updates
Bogus screen update requests from buggy or malicous frontend make SDL
crash. The VNC backend silently ignores them. Catch and log them.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Keir Fraser [Fri, 16 Nov 2007 16:43:57 +0000 (16:43 +0000)]
xend: host.get_log() close fd
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
Keir Fraser [Fri, 16 Nov 2007 16:36:38 +0000 (16:36 +0000)]
vmx: wbinvd optimization for pass-through domain.
Optimise wbinvd exit emulation for pass-through domains to avoid
"always wbinvd" when a VCPU is migrated. Instead, do host wbinvd on
all host CPUs when wbinvd exit.
Signed-off-by Yaozu (Eddie) Dong <eddie.dong@intel.com>
Keir Fraser [Fri, 16 Nov 2007 16:22:00 +0000 (16:22 +0000)]
x86, hvm: Small code cleanups.
Based on patch from Xin Li.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>