X-Git-Url: https://scm.lunaixsky.com/lunaix-os.git/blobdiff_plain/88d981e8325ea91ca6ca21cdba3c73308fe84541..4769a870917b98723690aa336d12d0656769528b:/lunaix-os/hal/pci.c

diff --git a/lunaix-os/hal/pci.c b/lunaix-os/hal/pci.c
index 4bf4c56..b03c128 100644
--- a/lunaix-os/hal/pci.c
+++ b/lunaix-os/hal/pci.c
@@ -187,7 +187,7 @@ pci_setup_msi(struct pci_device* device, int vector)
     pci_reg_t reg1 = pci_read_cspace(device->cspace_base, device->msi_loc);
 
     // manipulate the MSI_CTRL to allow device using MSI to request service.
-    reg1 = ((((reg1 >> 16) & ~0x70) | 0x1) << 16) | (reg1 & 0xffff);
+    reg1 = (reg1 & 0xff8fffff) | 0x10000;
     pci_write_cspace(device->cspace_base, device->msi_loc, reg1);
 }