From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 20 Nov 2012 17:33:41 +0000 (+0100)
Subject: esp: enable busmaster
X-Git-Tag: rel-1.7.2~46
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=68513ab2ae14b7359e4aa2868fc891c517d77a17;p=seabios.git

esp: enable busmaster

The HBA does DMA, thus we must enable the busmaster bit,
otherwise dma access will fail with recent qemu versions.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/src/esp-scsi.c b/src/esp-scsi.c
index b795012..c43e55b 100644
--- a/src/esp-scsi.c
+++ b/src/esp-scsi.c
@@ -202,6 +202,8 @@ init_esp_scsi(struct pci_device *pci)
             pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf),
             pci_bdf_to_fn(bdf), iobase);
 
+    pci_config_maskw(bdf, PCI_COMMAND, 0, PCI_COMMAND_MASTER);
+
     // reset
     outb(ESP_CMD_RESET, iobase + ESP_CMD);