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From: "Philippe Mathieu-Daudé" <philmd@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	"Thomas Huth" <thuth@redhat.com>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: [PATCH v3 4/6] hw/virtio/vhost-vdpa: Use target-agnostic qemu_target_page_mask()
Date: Mon, 10 Jul 2023 11:49:29 +0200	[thread overview]
Message-ID: <20230710094931.84402-5-philmd@linaro.org> (raw)
In-Reply-To: <20230710094931.84402-1-philmd@linaro.org>

Similarly to commit e414ed2c47 ("virtio-iommu: Use
target-agnostic qemu_target_page_mask"), Replace the
target-specific TARGET_PAGE_SIZE and TARGET_PAGE_MASK
definitions by a call to the runtime qemu_target_page_size()
helper which is target agnostic.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/virtio/vhost-vdpa.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/hw/virtio/vhost-vdpa.c b/hw/virtio/vhost-vdpa.c
index a3dd7c712a..2717edf51d 100644
--- a/hw/virtio/vhost-vdpa.c
+++ b/hw/virtio/vhost-vdpa.c
@@ -14,6 +14,7 @@
 #include <linux/vfio.h>
 #include <sys/eventfd.h>
 #include <sys/ioctl.h>
+#include "exec/target_page.h"
 #include "hw/virtio/vhost.h"
 #include "hw/virtio/vhost-backend.h"
 #include "hw/virtio/virtio-net.h"
@@ -23,7 +24,6 @@
 #include "migration/blocker.h"
 #include "qemu/cutils.h"
 #include "qemu/main-loop.h"
-#include "cpu.h"
 #include "trace.h"
 #include "qapi/error.h"
 
@@ -313,9 +313,11 @@ static void vhost_vdpa_listener_region_add(MemoryListener *listener,
     Int128 llend, llsize;
     void *vaddr;
     int ret;
+    int page_size = qemu_target_page_size();
+    int page_mask = -page_size;
 
     if (vhost_vdpa_listener_skipped_section(section, v->iova_range.first,
-                                            v->iova_range.last, TARGET_PAGE_MASK)) {
+                                            v->iova_range.last, page_mask)) {
         return;
     }
     if (memory_region_is_iommu(section->mr)) {
@@ -323,14 +325,14 @@ static void vhost_vdpa_listener_region_add(MemoryListener *listener,
         return;
     }
 
-    if (unlikely((section->offset_within_address_space & ~TARGET_PAGE_MASK) !=
-                 (section->offset_within_region & ~TARGET_PAGE_MASK))) {
+    if (unlikely((section->offset_within_address_space & ~page_mask) !=
+                 (section->offset_within_region & ~page_mask))) {
         error_report("%s received unaligned region", __func__);
         return;
     }
 
-    iova = ROUND_UP(section->offset_within_address_space, TARGET_PAGE_SIZE);
-    llend = vhost_vdpa_section_end(section, TARGET_PAGE_MASK);
+    iova = ROUND_UP(section->offset_within_address_space, page_size);
+    llend = vhost_vdpa_section_end(section, page_mask);
     if (int128_ge(int128_make64(iova), llend)) {
         return;
     }
@@ -396,23 +398,25 @@ static void vhost_vdpa_listener_region_del(MemoryListener *listener,
     hwaddr iova;
     Int128 llend, llsize;
     int ret;
+    int page_size = qemu_target_page_size();
+    int page_mask = -page_size;
 
     if (vhost_vdpa_listener_skipped_section(section, v->iova_range.first,
-                                            v->iova_range.last, TARGET_PAGE_MASK)) {
+                                            v->iova_range.last, page_mask)) {
         return;
     }
     if (memory_region_is_iommu(section->mr)) {
         vhost_vdpa_iommu_region_del(listener, section);
     }
 
-    if (unlikely((section->offset_within_address_space & ~TARGET_PAGE_MASK) !=
-                 (section->offset_within_region & ~TARGET_PAGE_MASK))) {
+    if (unlikely((section->offset_within_address_space & ~page_mask) !=
+                 (section->offset_within_region & ~page_mask))) {
         error_report("%s received unaligned region", __func__);
         return;
     }
 
-    iova = ROUND_UP(section->offset_within_address_space, TARGET_PAGE_SIZE);
-    llend = vhost_vdpa_section_end(section, TARGET_PAGE_MASK);
+    iova = ROUND_UP(section->offset_within_address_space, page_size);
+    llend = vhost_vdpa_section_end(section, page_mask);
 
     trace_vhost_vdpa_listener_region_del(v, iova,
         int128_get64(int128_sub(llend, int128_one())));
-- 
2.38.1



  parent reply	other threads:[~2023-07-10  9:51 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-10  9:49 [PATCH v3 0/6] hw/virtio: Build vhost-vdpa.o once for all targets Philippe Mathieu-Daudé
2023-07-10  9:49 ` [PATCH v3 1/6] hw/virtio: Propagate page_mask to vhost_vdpa_listener_skipped_section() Philippe Mathieu-Daudé
2023-07-10  9:49 ` [PATCH v3 2/6] hw/virtio: Propagate page_mask to vhost_vdpa_section_end() Philippe Mathieu-Daudé
2023-07-10  9:49 ` [PATCH v3 3/6] hw/virtio/vhost-vdpa: Inline TARGET_PAGE_ALIGN() macro Philippe Mathieu-Daudé
2023-07-10  9:49 ` Philippe Mathieu-Daudé [this message]
2023-08-18 11:00   ` [PATCH v3 4/6] hw/virtio/vhost-vdpa: Use target-agnostic qemu_target_page_mask() Philippe Mathieu-Daudé
2023-08-25  8:11     ` Philippe Mathieu-Daudé
2023-08-29 16:50     ` Richard Henderson
2023-07-10 10:04 ` [PATCH v3 5/6] hw/virtio: Build vhost-vdpa.o once Philippe Mathieu-Daudé
2023-07-10 10:05 ` [PATCH v3 6/6] hw/virtio/meson: Rename softmmu_virtio_ss[] -> system_virtio_ss[] Philippe Mathieu-Daudé
2023-08-30 13:35 ` [PATCH v3 0/6] hw/virtio: Build vhost-vdpa.o once for all targets Philippe Mathieu-Daudé
2023-09-06  6:31   ` Philippe Mathieu-Daudé
2023-09-18 10:42     ` Philippe Mathieu-Daudé
2023-09-25 22:00       ` Michael S. Tsirkin

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