Page Menu
Home
FreeBSD
Search
Configure Global Search
Log In
Files
F161729167
D39620.diff
No One
Temporary
Actions
View File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Flag For Later
Award Token
Size
2 KB
Referenced Files
None
Subscribers
None
D39620.diff
View Options
diff --git a/sys/amd64/vmm/intel/vmx.c b/sys/amd64/vmm/intel/vmx.c
--- a/sys/amd64/vmm/intel/vmx.c
+++ b/sys/amd64/vmm/intel/vmx.c
@@ -3763,7 +3763,8 @@
struct pir_desc *pir_desc;
struct LAPIC *lapic;
uint64_t pending, pirval;
- uint32_t ppr, vpr;
+ uint8_t ppr, vpr, rvi;
+ struct vm_exit *vmexit;
int i;
/*
@@ -3774,31 +3775,26 @@
vlapic_vtx = (struct vlapic_vtx *)vlapic;
pir_desc = vlapic_vtx->pir_desc;
+ lapic = vlapic->apic_page;
- pending = atomic_load_acq_long(&pir_desc->pending);
- if (!pending) {
- /*
- * While a virtual interrupt may have already been
- * processed the actual delivery maybe pending the
- * interruptibility of the guest. Recognize a pending
- * interrupt by reevaluating virtual interrupts
- * following Section 29.2.1 in the Intel SDM Volume 3.
- */
- struct vm_exit *vmexit;
- uint8_t rvi, ppr;
-
- vmexit = vm_exitinfo(vlapic->vcpu);
- KASSERT(vmexit->exitcode == VM_EXITCODE_HLT,
- ("vmx_pending_intr: exitcode not 'HLT'"));
- rvi = vmexit->u.hlt.intr_status & APIC_TPR_INT;
- lapic = vlapic->apic_page;
- ppr = lapic->ppr & APIC_TPR_INT;
- if (rvi > ppr) {
- return (1);
- }
+ /*
+ * While a virtual interrupt may have already been
+ * processed the actual delivery maybe pending the
+ * interruptibility of the guest. Recognize a pending
+ * interrupt by reevaluating virtual interrupts
+ * following Section 30.2.1 in the Intel SDM Volume 3.
+ */
+ vmexit = vm_exitinfo(vlapic->vcpu);
+ KASSERT(vmexit->exitcode == VM_EXITCODE_HLT,
+ ("vmx_pending_intr: exitcode not 'HLT'"));
+ rvi = vmexit->u.hlt.intr_status & APIC_TPR_INT;
+ ppr = lapic->ppr & APIC_TPR_INT;
+ if (rvi > ppr)
+ return (1);
+ pending = atomic_load_acq_long(&pir_desc->pending);
+ if (!pending)
return (0);
- }
/*
* If there is an interrupt pending then it will be recognized only
@@ -3807,8 +3803,6 @@
* Special case: if the processor priority is zero then any pending
* interrupt will be recognized.
*/
- lapic = vlapic->apic_page;
- ppr = lapic->ppr & APIC_TPR_INT;
if (ppr == 0)
return (1);
File Metadata
Details
Attached
Mime Type
text/plain
Expires
Tue, Jul 7, 7:45 AM (19 h, 13 m)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
34789934
Default Alt Text
D39620.diff (2 KB)
Attached To
Mode
D39620: vmm: Fix HLT loop while vcpu has requested virtual interrupts
Attached
Detach File
Event Timeline
Log In to Comment