[qemu,1/2] cxl/cxl-mailbox-utils: Fix size check for cmd_firmware_update_get_info

Commit Message

Jonathan Cameron Nov. 1, 2024, 1:20 p.m. UTC

From: Fan Ni <[e-mail]>

In the function cmd_firmware_update_get_info for handling Get FW info
command (0x0200h), the vmem, pmem and DC capacity size check were
incorrect. The size should be aligned to 256MiB, not smaller than
256MiB.

Signed-off-by: Fan Ni <[e-mail]>
Reviewed-by: Davidlohr Bueso <[e-mail]>
Signed-off-by: Jonathan Cameron <[e-mail]>
---
 hw/cxl/cxl-mailbox-utils.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

Patch

diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c
index 5f63099724..8bb0d2dd29 100644
--- a/hw/cxl/cxl-mailbox-utils.c
+++ b/hw/cxl/cxl-mailbox-utils.c
@@ -649,9 +649,9 @@  static CXLRetCode cmd_firmware_update_get_info(const struct cxl_cmd *cmd,
     } QEMU_PACKED *fw_info;
     QEMU_BUILD_BUG_ON(sizeof(*fw_info) != 0x50);
 
-    if ((cxl_dstate->vmem_size < CXL_CAPACITY_MULTIPLIER) ||
-        (cxl_dstate->pmem_size < CXL_CAPACITY_MULTIPLIER) ||
-        (ct3d->dc.total_capacity < CXL_CAPACITY_MULTIPLIER)) {
+    if (!QEMU_IS_ALIGNED(cxl_dstate->vmem_size, CXL_CAPACITY_MULTIPLIER) ||
+        !QEMU_IS_ALIGNED(cxl_dstate->pmem_size, CXL_CAPACITY_MULTIPLIER) ||
+        !QEMU_IS_ALIGNED(ct3d->dc.total_capacity, CXL_CAPACITY_MULTIPLIER)) {
         return CXL_MBOX_INTERNAL_ERROR;
     }