[1/2] vdpa: stash memory region properties in vars

Commit Message

Eugenio Perez Martin Feb. 15, 2024, 10:36 a.m. UTC

Next changes uses this variables, so avoid call repeatedly to memory
region functions. No functional change intended.

Signed-off-by: Eugenio Pérez <[e-mail]>
---
 hw/virtio/vhost-vdpa.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

Patch

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index ddae494ca8..2b9e5c3d4d 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -47,12 +47,14 @@  static bool vhost_vdpa_listener_skipped_section(MemoryRegionSection *section,
                                                 int page_mask)
 {
     Int128 llend;
+    bool is_ram = memory_region_is_ram(section->mr);
+    bool is_iommu = memory_region_is_iommu(section->mr);
+    bool is_protected = memory_region_is_protected(section->mr);
 
-    if ((!memory_region_is_ram(section->mr) &&
-         !memory_region_is_iommu(section->mr)) ||
-        memory_region_is_protected(section->mr) ||
-        /* vhost-vDPA doesn't allow MMIO to be mapped  */
-        memory_region_is_ram_device(section->mr)) {
+    /* vhost-vDPA doesn't allow MMIO to be mapped  */
+    bool is_ram_device = memory_region_is_ram_device(section->mr);
+
+    if ((!is_ram && !is_iommu) || is_protected || is_ram_device) {
         return true;
     }
 
@@ -69,7 +71,7 @@  static bool vhost_vdpa_listener_skipped_section(MemoryRegionSection *section,
      * size that maps to the kernel
      */
 
-    if (!memory_region_is_iommu(section->mr)) {
+    if (!is_iommu) {
         llend = vhost_vdpa_section_end(section, page_mask);
         if (int128_gt(llend, int128_make64(iova_max))) {
             error_report("RAM section out of device range (max=0x%" PRIx64