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| author | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-04-03 11:44:10 +0100 |
|---|---|---|
| committer | kfraser@localhost.localdomain <kfraser@localhost.localdomain> | 2007-04-03 11:44:10 +0100 |
| commit | a9344ed5826043957f11d480e0cf48ec4bdc73b8 (patch) | |
| tree | 0626f6f329ff0cba3be28a1ffd8fcbd57b5a2ca7 /xen/arch/x86/hvm/io.c | |
| parent | 9123bf1da67844083f2fc514f09b27eb61fda716 (diff) | |
| download | xen-a9344ed5826043957f11d480e0cf48ec4bdc73b8.tar.gz xen-a9344ed5826043957f11d480e0cf48ec4bdc73b8.tar.bz2 xen-a9344ed5826043957f11d480e0cf48ec4bdc73b8.zip | |
xen: Allow vcpus to defer a shutdown request across critical
asynchronous operations (in particular, hvm ioreq requests).
Signed-off-by: Keir Fraser <keir@xensource.com>
Diffstat (limited to 'xen/arch/x86/hvm/io.c')
| -rw-r--r-- | xen/arch/x86/hvm/io.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/xen/arch/x86/hvm/io.c b/xen/arch/x86/hvm/io.c index 605a42978b..4bff30b2b9 100644 --- a/xen/arch/x86/hvm/io.c +++ b/xen/arch/x86/hvm/io.c @@ -771,10 +771,11 @@ void hvm_io_assist(struct vcpu *v) struct cpu_user_regs *regs; struct hvm_io_op *io_opp; unsigned long gmfn; + struct domain *d = v->domain; io_opp = &v->arch.hvm_vcpu.io_op; regs = &io_opp->io_context; - vio = get_vio(v->domain, v->vcpu_id); + vio = get_vio(d, v->vcpu_id); p = &vio->vp_ioreq; if ( p->state != STATE_IORESP_READY ) @@ -797,11 +798,13 @@ void hvm_io_assist(struct vcpu *v) memcpy(guest_cpu_user_regs(), regs, HVM_CONTEXT_STACK_BYTES); /* Has memory been dirtied? */ - if ( p->dir == IOREQ_READ && p->data_is_ptr ) + if ( (p->dir == IOREQ_READ) && p->data_is_ptr ) { gmfn = get_mfn_from_gpfn(paging_gva_to_gfn(v, p->data)); - mark_dirty(v->domain, gmfn); + mark_dirty(d, gmfn); } + + vcpu_end_shutdown_deferral(v); } /* |