OvmfPkg/VirtioFsDxe: implement the wrapper function for FUSE_STATFS

Add the VirtioFsFuseStatFs() function, for sending the FUSE_STATFS command
to the Virtio Filesystem device.

Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3097
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20201216211125.19496-29-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>

1 files changed, 17 insertions, 0 deletions

diff --git a/OvmfPkg/Include/IndustryStandard/VirtioFs.h b/OvmfPkg/Include/IndustryStandard/VirtioFs.h
index efcf57941c..800d3651e1 100644
--- a/OvmfPkg/Include/IndustryStandard/VirtioFs.h
+++ b/OvmfPkg/Include/IndustryStandard/VirtioFs.h
@@ -119,6 +119,7 @@ typedef enum {
   VirtioFsFuseOpUnlink      = 10,

   VirtioFsFuseOpRmDir       = 11,

   VirtioFsFuseOpOpen        = 14,

+  VirtioFsFuseOpStatFs      = 17,

   VirtioFsFuseOpRelease     = 18,

   VirtioFsFuseOpFsync       = 20,

   VirtioFsFuseOpFlush       = 25,

@@ -234,6 +235,22 @@ typedef struct {
 } VIRTIO_FS_FUSE_OPEN_RESPONSE;

 

 //

+// Header for VirtioFsFuseOpStatFs.

+//

+typedef struct {

+  UINT64 Blocks;

+  UINT64 Bfree;

+  UINT64 Bavail;

+  UINT64 Files;

+  UINT64 Ffree;

+  UINT32 Bsize;

+  UINT32 Namelen;

+  UINT32 Frsize;

+  UINT32 Padding;

+  UINT32 Spare[6];

+} VIRTIO_FS_FUSE_STATFS_RESPONSE;

+

+//

 // Header for VirtioFsFuseOpRelease and VirtioFsFuseOpReleaseDir.

 //

 typedef struct {