intel-iommu: send PSI always even if across PDEs

[thirdparty/qemu.git] / qemu-io-cmds.c

diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 2811a890994163054b4b5c3488ce0fc7639ea3e9..9b3cd00af6c6094d7c367797bb1972d0dd47dde6 100644 (file)
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -17,6 +17,7 @@
 #include "block/qapi.h"
 #include "qemu/error-report.h"
 #include "qemu/main-loop.h"
+#include "qemu/option.h"
 #include "qemu/timer.h"
 #include "qemu/cutils.h"
 
@@ -1769,10 +1770,6 @@ static int alloc_f(BlockBackend *blk, int argc, char **argv)
     if (offset < 0) {
         print_cvtnum_err(offset, argv[1]);
         return 0;
-    } else if (!QEMU_IS_ALIGNED(offset, BDRV_SECTOR_SIZE)) {
-        printf("%" PRId64 " is not a sector-aligned value for 'offset'\n",
-               offset);
-        return 0;
     }
 
     if (argc == 3) {
@@ -1780,19 +1777,10 @@ static int alloc_f(BlockBackend *blk, int argc, char **argv)
         if (count < 0) {
             print_cvtnum_err(count, argv[2]);
             return 0;
-        } else if (count > INT_MAX * BDRV_SECTOR_SIZE) {
-            printf("length argument cannot exceed %llu, given %s\n",
-                   INT_MAX * BDRV_SECTOR_SIZE, argv[2]);
-            return 0;
         }
     } else {
         count = BDRV_SECTOR_SIZE;
     }
-    if (!QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)) {
-        printf("%" PRId64 " is not a sector-aligned value for 'count'\n",
-               count);
-        return 0;
-    }
 
     remaining = count;
     sum_alloc = 0;
@@ -2010,12 +1998,27 @@ static int reopen_f(BlockBackend *blk, int argc, char **argv)
         return 0;
     }
 
+    if (!(flags & BDRV_O_RDWR)) {
+        uint64_t orig_perm, orig_shared_perm;
+
+        bdrv_drain(bs);
+
+        blk_get_perm(blk, &orig_perm, &orig_shared_perm);
+        blk_set_perm(blk,
+                     orig_perm & ~(BLK_PERM_WRITE | BLK_PERM_WRITE_UNCHANGED),
+                     orig_shared_perm,
+                     &error_abort);
+    }
+
     qopts = qemu_opts_find(&reopen_opts, NULL);
     opts = qopts ? qemu_opts_to_qdict(qopts, NULL) : NULL;
     qemu_opts_reset(&reopen_opts);
 
+    bdrv_subtree_drained_begin(bs);
     brq = bdrv_reopen_queue(NULL, bs, opts, flags);
     bdrv_reopen_multiple(bdrv_get_aio_context(bs), brq, &local_err);
+    bdrv_subtree_drained_end(bs);
+
     if (local_err) {
         error_report_err(local_err);
     } else {