search for: rcu_lock_domain_by_id

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

...y_mapping: + case XEN_DOMCTL_ioport_mapping: + case XEN_DOMCTL_assign_device: + case XEN_DOMCTL_deassign_device: + case XEN_DOMCTL_bind_pt_irq: + case XEN_DOMCTL_unbind_pt_irq: + { + struct domain *d; + + if ( op->domain != DOMID_SELF ) + { + d = rcu_lock_domain_by_id(op->domain); + + if ( d == NULL ) + return -ESRCH; + else + { + if ( !IS_PRIV_FOR(current->domain, d) ) + { + rcu_unlock_domain(d); + return -EPERM; + } +...

...<public/domctl.h> #include <xsm/xsm.h> - extern long arch_do_domctl( struct xen_domctl *op, XEN_GUEST_HANDLE(xen_domctl_t) u_domctl); @@ -315,6 +314,16 @@ ret = 0; } break; + case XEN_DOMCTL_restoredomain: + { + struct domain *d; + if ( (d = rcu_lock_domain_by_id(op->domain)) == NULL ) + break; + + d->after_restore = 1; + rcu_unlock_domain(d); + break; + } case XEN_DOMCTL_createdomain: { diff -r a5ed0dbc829f xen/include/public/domctl.h --- a/xen/include/public/domctl.h Tue Nov 18 14:34:14 2008 +...

...ctl); @@ -315,6 +314,16 @@ ret = 0; } break; + case XEN_DOMCTL_restoredomain: + { + struct domain *d; + if ( (d = rcu_lock_domain_by_id(op->domain)) == NULL ) + break; + + d->after_restore = 1; + rcu_unlock_domain(d); + break; + } case...

...elinquish_resources(d); + + return 0; } void arch_dump_domain_info(struct domain *d) diff -r 58d131f1fb35 -r 2c9db26f1d0e xen/common/domain.c --- a/xen/common/domain.c Fri Aug 24 16:32:56 2007 +0100 +++ b/xen/common/domain.c Tue Aug 28 13:06:41 2007 +0900 @@ -298,26 +298,37 @@ struct domain *rcu_lock_domain_by_id(dom } -void domain_kill(struct domain *d) -{ - domain_pause(d); - - /* Already dying? Then bail. */ - if ( test_and_set_bool(d->is_dying) ) - { - domain_unpause(d); - return; - } - - evtchn_destroy(d); - gnttab_release_mappings(d); - domain_relinquish_r...

...gdprintk(XENLOG_INFO, "Zero flags for handle (%d).\n", op->handle); op->status = GNTST_bad_handle; return; } dom = op->map->domid; - spin_unlock(&ld->grant_table->lock); + spin_unlock(&lgt->lock); if ( unlikely((rd = rcu_lock_domain_by_id(dom)) == NULL) ) { @@ -840,7 +844,8 @@ __gnttab_unmap_common( TRACE_1D(TRC_MEM_PAGE_GRANT_UNMAP, dom); - double_gt_lock(ld->grant_table, rd->grant_table); + rgt = rd->grant_table; + double_gt_lock(lgt, rgt); op->flags = op->map->flags; if ( unlik...

This is a fourth cut of the hypervisor patch of the proposed XENMEM_claim_pages hypercall/subop, taking into account feedback from Jan and Keir and IanC, plus some fixes found via runtime debugging (using privcmd only) and some added comments/cleanup. [Logistical note: I will be out tomorrow (Friday) plus US holidays next week so my responsiveness to comments may be slower for awhile. --djm]

Hi Keir: These two patches remove the need for netloop by performing the copying in netback and only if it is necessary. The rationale is that most packets will be processed without delay allowing them to be freed without copying at all. So instead of copying every packet destined to dom0 we''ll only copy those that linger longer than a specified amount of time (currently 0.5s). As it

Changes from v3: - mini-os configuration files moved into stubdom/ - mini-os extra console support now a config option - Fewer #ifdefs - grant table setup uses hypercall bounce - Xenstore stub domain syslog support re-enabled Changes from v2: - configuration support added to mini-os build system - add mini-os support for conditionally compiling frontends, xenbus -

This patch series is a reworking of a series developed by Mukesh Rathor at Oracle. The entirety of the design and development was done by him; I have only reworked, reorganized, and simplified things in a way that I think makes more sense. The vast majority of the credit for this effort therefore goes to him. This version is labelled v13 because it is based on his most recent series, v11.