We used to have a macro for VTD_PE_GET_FPD_ERR() but it has an
internal goto which prevents it from being reused. This patch convert
that macro to a dedicated function and let the caller to decide what
to do (e.g using goto or not). This makes sure it can be re-used for
other function that requires fault reporting.
Signed-off-by: Jason Wang <jasow...@redhat.com>
---
hw/i386/intel_iommu.c | 42 ++++++++++++++++++++++++++++--------------
1 file changed, 28 insertions(+), 14 deletions(-)
diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 5851a17d0e..82787f9850 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -49,17 +49,6 @@
/* pe operations */
#define VTD_PE_GET_TYPE(pe) ((pe)->val[0] & VTD_SM_PASID_ENTRY_PGTT)
#define VTD_PE_GET_LEVEL(pe) (2 + (((pe)->val[0] >> 2) &
VTD_SM_PASID_ENTRY_AW))
-#define VTD_PE_GET_FPD_ERR(ret_fr, is_fpd_set, s, source_id, addr, is_write) {\
- if (ret_fr) { \
- ret_fr = -ret_fr; \
- if (is_fpd_set && vtd_is_qualified_fault(ret_fr)) { \
- trace_vtd_fault_disabled(); \
- } else { \
- vtd_report_dmar_fault(s, source_id, addr, ret_fr, is_write); \
- } \
- goto error; \
- } \
-}
/*
* PCI bus number (or SID) is not reliable since the device is usaully
@@ -1724,6 +1713,19 @@ out:
trace_vtd_pt_enable_fast_path(source_id, success);
}
+static void vtd_qualify_report_fault(IntelIOMMUState *s,
+ int err, bool is_fpd_set,
+ uint16_t source_id,
+ hwaddr addr,
+ bool is_write)
+{
+ if (is_fpd_set && vtd_is_qualified_fault(err)) {
+ trace_vtd_fault_disabled();
+ } else {
+ vtd_report_dmar_fault(s, source_id, addr, err, is_write);
+ }
+}
+
/* Map dev to context-entry then do a paging-structures walk to do a iommu
* translation.
*
@@ -1784,7 +1786,11 @@ static bool vtd_do_iommu_translate(VTDAddressSpace
*vtd_as, PCIBus *bus,
is_fpd_set = ce.lo & VTD_CONTEXT_ENTRY_FPD;
if (!is_fpd_set && s->root_scalable) {
ret_fr = vtd_ce_get_pasid_fpd(s, &ce, &is_fpd_set);
- VTD_PE_GET_FPD_ERR(ret_fr, is_fpd_set, s, source_id, addr,
is_write);
+ if (ret_fr) {
+ vtd_qualify_report_fault(s, -ret_fr, is_fpd_set,
+ source_id, addr, is_write);
+ goto error;
+ }
}
} else {
ret_fr = vtd_dev_to_context_entry(s, bus_num, devfn, &ce);
@@ -1792,7 +1798,11 @@ static bool vtd_do_iommu_translate(VTDAddressSpace
*vtd_as, PCIBus *bus,
if (!ret_fr && !is_fpd_set && s->root_scalable) {
ret_fr = vtd_ce_get_pasid_fpd(s, &ce, &is_fpd_set);
}
- VTD_PE_GET_FPD_ERR(ret_fr, is_fpd_set, s, source_id, addr, is_write);
+ if (ret_fr) {
+ vtd_qualify_report_fault(s, -ret_fr, is_fpd_set,
+ source_id, addr, is_write);
+ goto error;
+ }
/* Update context-cache */
trace_vtd_iotlb_cc_update(bus_num, devfn, ce.hi, ce.lo,
cc_entry->context_cache_gen,
@@ -1828,7 +1838,11 @@ static bool vtd_do_iommu_translate(VTDAddressSpace
*vtd_as, PCIBus *bus,
ret_fr = vtd_iova_to_slpte(s, &ce, addr, is_write, &slpte, &level,
&reads, &writes, s->aw_bits);
- VTD_PE_GET_FPD_ERR(ret_fr, is_fpd_set, s, source_id, addr, is_write);
+ if (ret_fr) {
+ vtd_qualify_report_fault(s, -ret_fr, is_fpd_set, source_id,
+ addr, is_write);
+ goto error;
+ }
page_mask = vtd_slpt_level_page_mask(level);
access_flags = IOMMU_ACCESS_FLAG(reads, writes);
--
2.25.1
