[v3] hw/cxl: Fix msix_notify: Assertion `vector < dev->msix_entries_nr`

Commit Message

Li Zhijian Jan. 15, 2025, 7:58 a.m. UTC

This assertion always happens when we sanitize the CXL memory device.
$ echo 1 > /sys/bus/cxl/devices/mem0/security/sanitize

It is incorrect to register an MSIX number beyond the device's capability.

Increase the device's MSIX number to cover the mailbox msix number(9).

Fixes: 43efb0bfad2b ("hw/cxl/mbox: Wire up interrupts for background completion")
Signed-off-by: Li Zhijian <[e-mail]>
---
V3:
  Just increate the device's msix number, A new enumeration will be introduced in later patch. # Jonathan

V2:
  Just increase msix number and add enum to maintainer their values # Jonathan
---
 hw/mem/cxl_type3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch

diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c
index bd7652740f4b..0ae1704a345c 100644
--- a/hw/mem/cxl_type3.c
+++ b/hw/mem/cxl_type3.c
@@ -843,7 +843,7 @@  static void ct3_realize(PCIDevice *pci_dev, Error **errp)
     ComponentRegisters *regs = &cxl_cstate->crb;
     MemoryRegion *mr = &regs->component_registers;
     uint8_t *pci_conf = pci_dev->config;
-    unsigned short msix_num = 6;
+    unsigned short msix_num = 10;
     int i, rc;
     uint16_t count;