From: Paolo Bonzini <pbonzini@redhat.com>
To: seabios@seabios.org
Cc: kraxel@redhat.com, qemu-devel@nongnu.org
Subject: [Qemu-devel] [PATCH] esp: enable busmaster
Date: Tue, 20 Nov 2012 18:33:41 +0100 [thread overview]
Message-ID: <1353432821-32517-1-git-send-email-pbonzini@redhat.com> (raw)
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>
---
src/esp-scsi.c | 2 ++
1 file modificato, 2 inserzioni(+)
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);
--
1.7.12.1
next reply other threads:[~2012-11-20 17:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-20 17:33 Paolo Bonzini [this message]
2012-11-20 17:42 ` [Qemu-devel] SeaBIOS release for QEMU 1.3 (was Re: [PATCH] esp: enable busmaster) Paolo Bonzini
2012-11-21 1:43 ` Kevin O'Connor
2012-11-21 6:43 ` Gerd Hoffmann
2013-01-07 14:29 ` [Qemu-devel] [SeaBIOS] " Gerd Hoffmann
2013-01-07 23:34 ` Kevin O'Connor
2013-01-07 23:51 ` Brad Smith
2013-01-07 23:56 ` Kevin O'Connor
2013-01-08 0:07 ` Brad Smith
2013-01-09 9:15 ` Paolo Bonzini
2012-11-21 0:08 ` [Qemu-devel] [PATCH] esp: enable busmaster Kevin O'Connor
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