similar to: Align periodic vpts to reduce timer interrupts and save power

Hi, When using lapic as timer source the hypervisor delivers timer interrupts late. In the source xen/arch/x86/hvm/vpt.c function create_periodic_time creates a timer element with a "bonus" of 50% of the desired time until the interrupt: pt->scheduled = NOW() + period; /* * Offset LAPIC ticks from other timer ticks. Otherwise guests which use * LAPIC ticks for

From: Yang Zhang <yang.z.zhang@Intel.com> The follwoing patches are adding the Posted Interrupt supporting to Xen: Posted Interrupt allows vAPIC interrupts to inject into guest directly without any vmexit. - When delivering a interrupt to guest, if target vcpu is running, update Posted-interrupt requests bitmap and send a notification event to the vcpu. Then the vcpu will handle this

Change from v2: re-written code in ''vmx_intr_assist'' into if()/else if() sequence to make code change easy to review. Virtual interrupt delivery avoids Xen to inject vAPIC interrupts manually, which is fully taken care of by the hardware. This needs some special awareness into existing interrupr injection path: For pending interrupt from vLAPIC, instead of direct injection, we

Dear all: I have found a big bug on xen concerning time virtualization. Please let me show you the whole process: 1 Phenomenon when I run a JVM based program in IE browser in my Virtual Machine, I have found clearly that time at the right bottom corner in my VM gets more slower and slower. I studied the bug deeply, and found something below. 2 Xen vmx_vmexit_handler --> ......... -->

The code below displays three graphs in three rows and one column but: 1. I want to remove the space between the graphs (I tried playing with position= arg to print.trellis but it seems quite difficult to get the right values and all my attempts had space between them or had overlapping graphs. Is there a better way to do this? 2. the widths of the plots are not the same even though I specified

A year ago I had posted this code https://stat.ethz.ch/pipermail/r-devel/2005-June/033508.html and the associated discussion was that there would be a print.trellis argument that could be used to eliminate the need for with.vpPath or with.viewport there. I assume that that is what draw.in= in print.trellis is for. When I try it I get an error. I did notice that ?print.trellis says draw.in=

From: Yang Zhang <yang.z.zhang@Intel.com> The following patches fix the issue that fail to boot L2 guest on APIC-v available machine. The main problem is that with APIC-v, virtual interrupt inject L1 is totally through APIC-v. But if virtual interrupt is arrived when L2 is running, L1 will detect interrupt through vmexit with reason external interrupt. If this happens, we should update

The "APIC-register virtualization" and "virtual-interrupt deliver" VM-execution control has no effect on the behavior of RDMSR/WRMSR if the "virtualize x2APIC mode" VM-execution control is 0. When guest uses x2APIC mode, we should enable "virtualize x2APIC mode" for APICV first. Signed-off-by: Jiongxi Li <jiongxi.li@intel.com> diff --git

In hvm enviroment, acpi failed. why? centos5.1 =================================================== [root@hvm001 ~]# xm dmesg __ __ _____ _ ____ ___ ____ _ ____ \ \/ /___ _ __ |___ / / | |___ \ / _ \___ \ ___| | ___| \ // _ \ \047_ \ |_ \ | | __) |_| (_) |__) | / _ \ |___ \ / \ __/ | | | ___) || |_ / __/|__\__, / __/ | __/ |___) | /_/\_\___|_| |_| |____(_)_(_)_____| /_/_____(_)___|_|____/

Keir, The patch moves ACPI timer to HV, which is the last platform timer in Qemu. We found Vista polls ACPI timer very frequently (about 15 times averagely) when handling timer (RTC @ 64HZ) interrupt routine. Though the exact reason is known, it should be related to system time adjustment. When it''s in Qemu, the overhead is big. After moving, Vista''s idle overhead decreases

hello list: I add some code to xen-3.1.0-src\xen\arch\x86\hvm\vmx\vmx.c to export some information when vmx_vmexit_handler() executed: ------------------------------------------------------------------------------------------------- --- vmx.c 2007-05-18 22:45:22.000000000 +0800 +++ vmx-patch.c 2008-11-24 14:19:18.000000000 +0800 @@ -50,7 +50,9 @@ #include <asm/hvm/vpt.h> #include

If HVM guest Fedora 7 uses PIT and lapic timer, it can''t boot or install. The cause is: At some point, Fedora 7 disables PIT interrupt by "vioapic.redirtbl[2].mask = 1, vpic.imr.bit0 = 0 (unmasked), vlapic.lvt[LINT0].mask = 1", and enables vlapic timer interrupt generating; In vmx_intr_assist() -> pt_update_irq(), we always choose IRQ0 rather than vlapic timer interrupt,

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com> -- ---to satisfy European Law for business letters: Advanced Micro Devices GmbH Einsteinring 24, 85609 Dornach b. Muenchen Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen Registergericht Muenchen, HRB Nr. 43632 _______________________________________________ Xen-devel mailing list

Functionally identical but much simpler. Should also better integrate with future layer/viewport changes/fixes. Cc: 10.1 <mesa-stable at lists.freedesktop.org> Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- Not *strictly* necessary in stable, but it will make backporting later fixes easier. No regressions in piglit. src/gallium/drivers/nouveau/nv50/nv50_program.c | 5

This patch adds CR8 virtualization. It''s the initial patch for booting HVM x64 Windows guest, and just let every CR8 access issues vmexit. And later we will do acceleration to it. Signed-off-by: Xiaohui Xin <xiaohui.xin@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

This patch-series implements the ARB_viewport_array for nvc0 and does a little house-cleanig afterwords. V2: Add Release-Notes, mark this in GL3 as done for nvc0 Don't mark the scissors dirty when we don't need to do that Tobias Klausmann (3): nvc0: implement multiple viewports/scissors, enable ARB_viewport_array docs: update GL3.txt, relnotes: mark GL_ARB_viewport_array as done

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de> --- src/gallium/drivers/nouveau/nvc0/nvc0_context.h | 7 +- src/gallium/drivers/nouveau/nvc0/nvc0_program.c | 2 +- src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 20 ++-- src/gallium/drivers/nouveau/nvc0/nvc0_screen.h | 3 + src/gallium/drivers/nouveau/nvc0/nvc0_state.c | 27 +++--

Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de> --- src/gallium/drivers/nouveau/nvc0/nvc0_context.h | 7 +- src/gallium/drivers/nouveau/nvc0/nvc0_program.c | 2 +- src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 20 ++-- src/gallium/drivers/nouveau/nvc0/nvc0_screen.h | 3 + src/gallium/drivers/nouveau/nvc0/nvc0_state.c | 27 ++++-

This patch-series implements the ARB_viewport_array for nvc0 and does a little house-cleanig afterwords. Tobias Klausmann (3): nvc0: implement multiple viewports/scissors, enable ARB_viewport_array nvc0: mark scissor in nvc0_clear_{} nv50/ir: Remove NV50_SEMANTIC_VIEWPORTINDEX and its last consumer .../drivers/nouveau/codegen/nv50_ir_driver.h | 1 -

[PATCH][HVM] fix smp guest hang after restore Signed-off-by: Zhai Edwin <edwin.zhai@intel.com> update the pt irq after restore, otherwise all lapic timer intr are lost diff -r 6b5606877bb4 xen/arch/x86/hvm/vlapic.c --- a/xen/arch/x86/hvm/vlapic.c Fri Sep 15 17:05:38 2006 +0800 +++ b/xen/arch/x86/hvm/vlapic.c Tue Jan 30 18:03:19 2007 +0800 @@ -836,14 +836,16 @@ static int