search for: vcpu_unpaus

...is paused + * after next context switch. ACPI PM requires this to pause vcpu0 of + * dom0 itself, in case that vcpu not running on cpu 0. + */ +void vcpu_pause_self(void) +{ + struct vcpu *v = current; + + set_bit(_VCPUF_need_sync, &v->vcpu_flags); + vcpu_pause_nosync(v); +} + void vcpu_unpause(struct vcpu *v) { int wake; diff -r f6443af464be xen/common/schedule.c --- a/xen/common/schedule.c Tue Feb 13 13:37:12 2007 +0800 +++ b/xen/common/schedule.c Tue Feb 13 13:41:44 2007 +0800 @@ -629,6 +629,13 @@ void context_saved(struct vcpu *prev) if ( unlikely(test_bit(_VCPUF_migrati...

...leep_nosync(v); } +/* _VPF_need_sync serves not only as flag for sync pause, but also + * as hint for other cpu waiting for this pause. + */ +void vcpu_pause_self(void) +{ + struct vcpu *v = current; + + set_bit(_VPF_need_sync, &v->pause_flags); + vcpu_pause_nosync(v); +} + void vcpu_unpause(struct vcpu *v) { if ( atomic_dec_and_test(&v->pause_count) ) diff -r d5315422dbc8 xen/common/schedule.c --- a/xen/common/schedule.c Mon May 14 18:35:31 2007 -0400 +++ b/xen/common/schedule.c Mon May 14 18:54:28 2007 -0400 @@ -691,6 +691,13 @@ void context_saved(struct vcpu *prev)...

...cpu_relax(); + + pmprintk(XENLOG_INFO, "vcpu0/dom0 has been paused\n"); + + /* now safe to suspend whole system from cpu 0 */ + regs = &v->arch.guest_context.user_regs; + regs->eax = enter_state(acpi_sinfo.sleep_state); + + /* Now unpause vcpu0/dom0 */ + vcpu_unpause(v); + + thaw_domains(); } static int __init acpi_sleep_init(void) @@ -268,6 +377,8 @@ static int __init acpi_sleep_init(void) sleep_states[i] = 0; } printk(")\n"); + + open_softirq(PM_SOFTIRQ, pm_softirq); return 0; } __initcall(acpi_sleep_init); d...

I''ve put together two patches. The first introduces a new dom0_op, set_max_vcpus, which with an associated variable and a check in the VCPUOP handler fixes [1]bug 288. Also included is a new VCPUOP, VCPUOP_create, which handles all of the vcpu creation tasks and leaves initialization and unpausing to VCPUOP_initialize. The separation allows for build-time allocation of vcpus which

These two patches were originally part of the XSM series that I have posted, and remain prerequisites for that series. However, they are independent of the XSM changes and are a useful simplification regardless of the use of XSM. The Acked-bys on these patches were provided before rebasing them over the copyback changes in 26268:1b72138bddda, which had minor conflicts that I resolved. [PATCH

This set of patches converts the way frames gets created from using PUSHes/POPs to using MOVes, thus allowing (in certain cases) to avoid saving/restoring part of the register set. While the place where the (small) win from this comes from varies between CPUs, the net effect is a 1 to 2% reduction on a combined interruption entry and exit when the full state save can be avoided. 1: use MOV

Hi all, this small patch series implement guest SMP support for ARM, using the ARM PSCI interface for secondary cpu bringup. Stefano Stabellini (4): xen/arm: basic PSCI support, implement cpu_on xen/arm: support for guest SGI xen/arm: support vcpu_op hypercalls xen: move VCPUOP_register_vcpu_info to common code xen/arch/arm/domain.c | 66 ++++++++++++++++++++++++

This round implements all of the review comments from V2 and all patches are now acked. Unless there are any objections I intend to apply later this morning. Ian.

First off, Apologies for the massive patch series... This series boots a 32-bit dom0 kernel to a command prompt on an ARMv8 (AArch64) model. The kernel is the same one as I am currently using with the 32 bit hypervisor I haven''t yet tried starting a guest or anything super advanced like that ;-). Also there is not real support for 64-bit domains at all, although in one or two places I