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From 2059082c26d40f083807ae81476fedd0c22c613f Mon Sep 17 00:00:00 2001
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Message-Id: <2059082c26d40f083807ae81476fedd0c22c613f.1387298827.git.minovotn@redhat.com>
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In-Reply-To: <3ed0fb61a3dc912ef036d7ef450bed192090709e.1387298827.git.minovotn@redhat.com>
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References: <3ed0fb61a3dc912ef036d7ef450bed192090709e.1387298827.git.minovotn@redhat.com>
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From: "Michael S. Tsirkin" <mst@redhat.com>
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Date: Tue, 17 Dec 2013 15:17:08 +0100
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Subject: [PATCH 08/56] pci: fix up w64 size calculation helper
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RH-Author: Michael S. Tsirkin <mst@redhat.com>
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Message-id: <1387293161-4085-9-git-send-email-mst@redhat.com>
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Patchwork-id: 56313
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O-Subject: [PATCH qemu-kvm RHEL7.0 v2 08/57] pci: fix up w64 size calculation helper
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Bugzilla: 1034876
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RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
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RH-Acked-by: Marcel Apfelbaum <marcel.a@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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BAR base was calculated incorrectly.
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Use existing pci_bar_address to get it right.
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Tested-by: Igor Mammedov <imammedo@redhat.com>
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Reviewed-by: Igor Mammedov <imammedo@redhat.com>
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Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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(cherry picked from commit 77d6f4ea7608fe7f47c9d7beddd19191b2e852b2)
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---
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hw/pci/pci.c | 20 ++++++++++++--------
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1 file changed, 12 insertions(+), 8 deletions(-)
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Signed-off-by: Michal Novotny <minovotn@redhat.com>
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---
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hw/pci/pci.c | 20 ++++++++++++--------
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1 file changed, 12 insertions(+), 8 deletions(-)
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diff --git a/hw/pci/pci.c b/hw/pci/pci.c
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index d550851..598d288 100644
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--- a/hw/pci/pci.c
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+++ b/hw/pci/pci.c
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@@ -2249,7 +2249,7 @@ static void pci_dev_get_w64(PCIBus *b, PCIDevice *dev, void *opaque)
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Range *range = opaque;
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PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
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uint16_t cmd = pci_get_word(dev->config + PCI_COMMAND);
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- int r;
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+ int i;
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if (!(cmd & PCI_COMMAND_MEMORY)) {
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return;
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@@ -2268,17 +2268,21 @@ static void pci_dev_get_w64(PCIBus *b, PCIDevice *dev, void *opaque)
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range_extend(range, &pref_range);
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}
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}
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- for (r = 0; r < PCI_NUM_REGIONS; ++r) {
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- PCIIORegion *region = &dev->io_regions[r];
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+ for (i = 0; i < PCI_NUM_REGIONS; ++i) {
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+ PCIIORegion *r = &dev->io_regions[i];
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Range region_range;
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- if (!region->size ||
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- (region->type & PCI_BASE_ADDRESS_SPACE_IO) ||
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- !(region->type & PCI_BASE_ADDRESS_MEM_TYPE_64)) {
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+ if (!r->size ||
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+ (r->type & PCI_BASE_ADDRESS_SPACE_IO) ||
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+ !(r->type & PCI_BASE_ADDRESS_MEM_TYPE_64)) {
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+ continue;
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+ }
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+ region_range.begin = pci_bar_address(dev, i, r->type, r->size);
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+ region_range.end = region_range.begin + r->size;
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+
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+ if (region_range.begin == PCI_BAR_UNMAPPED) {
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continue;
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}
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- region_range.begin = pci_get_quad(dev->config + pci_bar(dev, r));
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- region_range.end = region_range.begin + region->size;
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region_range.begin = MAX(region_range.begin, 0x1ULL << 32);
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--
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1.7.11.7
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