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authorPeter Maydell <peter.maydell@linaro.org>2018-01-19 16:35:25 +0000
committerPeter Maydell <peter.maydell@linaro.org>2018-01-19 16:35:25 +0000
commitb384cd95eb9c6f73ad84ed1bb0717a26e29cc78f (patch)
treebbd0e7a39efd262c9196edea6d75a88d47557d8a /exec.c
parent3e5bdc6573edf0585e4085e6a4e349b135abf3b4 (diff)
parentd6b6abc51dda79a97f2c7bd6652c1940c068f1ec (diff)
downloadfocaccia-qemu-b384cd95eb9c6f73ad84ed1bb0717a26e29cc78f.tar.gz
focaccia-qemu-b384cd95eb9c6f73ad84ed1bb0717a26e29cc78f.zip
Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging
machine queue, 2018-01-19

# gpg: Signature made Fri 19 Jan 2018 16:30:19 GMT
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request:
  fw_cfg: fix memory corruption when all fw_cfg slots are used
  possible_cpus: add CPUArchId::type field
  nvdimm: add 'unarmed' option
  nvdimm: add a macro for property "label-size"
  hostmem-file: add "align" option
  scripts: Remove fixed entries from the device-crash-test
  qdev: Check for the availability of a hotplug controller before adding a device
  qdev_monitor: Simplify error handling in qdev_device_add()
  q35: Allow only supported dynamic sysbus devices
  xen: Add only xen-sysdev to dynamic sysbus device list
  spapr: Allow only supported dynamic sysbus devices
  ppc: e500: Allow only supported dynamic sysbus devices
  hw/arm/virt: Allow only supported dynamic sysbus devices
  machine: Replace has_dynamic_sysbus with list of allowed devices
  numa: fix missing '-numa cpu' in '-help' output
  qemu-options: document memory-backend-ram
  qemu-options: document missing memory-backend-file options
  memfd: remove needless include
  memfd: split qemu_memfd_alloc()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'exec.c')
-rw-r--r--exec.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/exec.c b/exec.c
index d28fc0cd3d..629a508385 100644
--- a/exec.c
+++ b/exec.c
@@ -1612,7 +1612,13 @@ static void *file_ram_alloc(RAMBlock *block,
     void *area;
 
     block->page_size = qemu_fd_getpagesize(fd);
-    block->mr->align = block->page_size;
+    if (block->mr->align % block->page_size) {
+        error_setg(errp, "alignment 0x%" PRIx64
+                   " must be multiples of page size 0x%zx",
+                   block->mr->align, block->page_size);
+        return NULL;
+    }
+    block->mr->align = MAX(block->page_size, block->mr->align);
 #if defined(__s390x__)
     if (kvm_enabled()) {
         block->mr->align = MAX(block->mr->align, QEMU_VMALLOC_ALIGN);