Use a generic mmio-assist post processor if no other post-process functions are
present.
This will make sure we catch not only APIC_ACCESS vmexits, but also NPF vmexits
(and any future hardware innovations).
Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
diff -r 2a404c7a4fa2 -r 4e88187c91ba xenalyze.c
--- a/xenalyze.c Mon Nov 22 12:38:56 2010 +0000
+++ b/xenalyze.c Mon Nov 22 12:39:38 2010 +0000
@@ -1829,11 +1829,14 @@
} interval;
} P = { 0 };
+/* Function prototypes */
char * pcpu_string(int pcpu);
void process_generic(struct record_info *ri);
void dump_generic(FILE *f, struct record_info *ri);
ssize_t __read_record(int fd, struct trace_record *rec, loff_t offset);
void error(enum error_level l, struct record_info *ri);
+void update_io_address(struct io_address ** list, unsigned int pa, int dir,
+ tsc_t arc_cycles, unsigned int va);
void cpumask_init(cpu_mask_t *c) {
*c = 0UL;
@@ -3542,6 +3545,20 @@
}
+/* Also called by shadow_mmio_postprocess */
+void enumerate_mmio(struct hvm_data *h)
+{
+ struct pf_xen_extra *e = &h->inflight.pf_xen;
+
+ if ( e->mmio_data_valid )
+ update_io_address(&h->summary.mmio, e->gpa, e->mmio_is_write,
h->arc_cycles, e->va);
+}
+
+void hvm_mmio_assist_postprocess(struct hvm_data *h)
+{
+ if ( opt.with_mmio_enumeration )
+ enumerate_mmio(h);
+}
#define HVM_IO_ASSIST_WRITE 0x200
void hvm_mmio_assist_process(struct record_info *ri, struct hvm_data *h)
@@ -3594,6 +3611,11 @@
if((e->gpa & 0xfffff000) == 0xfee00000)
hvm_vlapic_handler(h);
+
+ /* Catch MMIOs that don't go through the shadow code */
+ if ( h->post_process == NULL )
+ h->post_process = hvm_mmio_assist_postprocess;
+
}
void hvm_inj_virq_process(struct record_info *ri, struct hvm_data *h) {
@@ -4520,21 +4542,6 @@
}
}
-/* Also called by shadow_mmio_postprocess */
-void enumerate_mmio(struct hvm_data *h)
-{
- struct pf_xen_extra *e = &h->inflight.pf_xen;
-
- if ( e->mmio_data_valid )
- update_io_address(&h->summary.mmio, e->gpa, e->mmio_is_write,
h->arc_cycles, e->va);
-}
-
-void hvm_apic_access_postprocess(struct hvm_data *h)
-{
- if ( opt.with_mmio_enumeration )
- enumerate_mmio(h);
-}
-
void hvm_npf_process(struct record_info *ri, struct hvm_data *h)
{
struct {
@@ -5040,8 +5047,6 @@
case EXIT_REASON_EXCEPTION_NMI:
h->post_process = hvm_exception_nmi_generic_postprocess;
break;
- case EXIT_REASON_APIC_ACCESS:
- h->post_process = hvm_apic_access_postprocess;
default:
;
}
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