Patchwork qemu-xen: vt-d bugfix for pci rom

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Submitter Liu, Jinsong
Date Sept. 6, 2013, 8:53 a.m.
Message ID <DE8DF0795D48FD4CA783C40EC829233501359BEF@SHSMSX101.ccr.corp.intel.com>
Download mbox | patch
Permalink /patch/273124/
State New
Headers show

Comments

Liu, Jinsong - Sept. 6, 2013, 8:53 a.m.
From 7d93370e8005499d18507b8cd9fa71f4ae794e19 Mon Sep 17 00:00:00 2001
From: Liu Jinsong <jinsong.liu@vt-nhm7.tsp.org>
Date: Fri, 6 Sep 2013 16:34:56 +0800
Subject: [PATCH] qemu-xen: vt-d bugfix for pci rom

Remove incorrect memory_region_init_rom_device() from xen_pt_register_regions(),
otherwise vt-d device with pci rom cannot pass through to hvm, since it trys to
populate from normal ram for pci rom.

Signed-off-by: Liu Jinsong <jinsong.liu@intel.com>
---
 hw/xen_pt.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

Patch

diff --git a/hw/xen_pt.c b/hw/xen_pt.c
index 7aae826..b0bffdb 100644
--- a/hw/xen_pt.c
+++ b/hw/xen_pt.c
@@ -440,8 +440,6 @@  static int xen_pt_register_regions(XenPCIPassthroughState *s)
 
         s->bases[PCI_ROM_SLOT].access.maddr = d->rom.base_addr;
 
-        memory_region_init_rom_device(&s->rom, NULL, NULL,
-                                      "xen-pci-pt-rom", d->rom.size);
         pci_register_bar(&s->dev, PCI_ROM_SLOT, PCI_BASE_ADDRESS_MEM_PREFETCH,
                          &s->rom);