hw/block: Let the NVMe emulated device be target-agnostic

Now than the non-target specific memory_region_msync() function
is available, use it to make this device target-agnostic.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20200508062456.23344-4-philmd@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

diff --git a/hw/block/Makefile.objs b/hw/block/Makefile.objs
index 47960b5..8855c22 100644 (file)
--- a/hw/block/Makefile.objs
+++ b/hw/block/Makefile.objs
@@ -13,6 +13,6 @@ common-obj-$(CONFIG_SH4) += tc58128.o
 
 obj-$(CONFIG_VIRTIO_BLK) += virtio-blk.o
 obj-$(CONFIG_VHOST_USER_BLK) += vhost-user-blk.o
-obj-$(CONFIG_NVME_PCI) += nvme.o
+common-obj-$(CONFIG_NVME_PCI) += nvme.o
 
 obj-y += dataplane/

diff --git a/hw/block/nvme.c b/hw/block/nvme.c
index 2f3100e..a21eeca 100644 (file)
--- a/hw/block/nvme.c
+++ b/hw/block/nvme.c
@@ -46,8 +46,7 @@
 #include "qapi/visitor.h"
 #include "sysemu/hostmem.h"
 #include "sysemu/block-backend.h"
-#include "exec/ram_addr.h"
-
+#include "exec/memory.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
 #include "qemu/cutils.h"
@@ -1207,8 +1206,7 @@ static uint64_t nvme_mmio_read(void *opaque, hwaddr addr, unsigned size)
          */
         if (addr == 0xE08 &&
             (NVME_PMRCAP_PMRWBM(n->bar.pmrcap) & 0x02)) {
-            qemu_ram_writeback(n->pmrdev->mr.ram_block,
-                               0, n->pmrdev->size);
+            memory_region_msync(&n->pmrdev->mr, 0, n->pmrdev->size);
         }
         memcpy(&val, ptr + addr, size);
     } else {