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Xen 2016/10/21

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Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20161021-tag' into staging

Xen 2016/10/21

# gpg: Signature made Fri 21 Oct 2016 20:52:42 BST
# gpg:                using RSA key 0x894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <sstabellini@kernel.org>"
# gpg:                 aka "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* remotes/sstabellini/tags/xen-20161021-tag:
  xen_platform: SUSE xenlinux unplug for emulated PCI
  xen_platform: unplug also SCSI disks
  xen-usb: do not reference PAGE_SIZE

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-10-24 10:26:44 +01:00
commit 4387f5671f
2 changed files with 32 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
hw/i386/xen/xen_platform.c
View File

@ -114,6 +114,10 @@ static void unplug_disks(PCIBus *b, PCIDevice *d, void *o)
PCI_CLASS_STORAGE_IDE
&& strcmp(d->name, "xen-pci-passthrough") != 0) {
pci_piix3_xen_ide_unplug(DEVICE(d));
} else if (pci_get_word(d->config + PCI_CLASS_DEVICE) ==
PCI_CLASS_STORAGE_SCSI
&& strcmp(d->name, "xen-pci-passthrough") != 0) {
object_unparent(OBJECT(d));
}
}
@ -307,13 +311,38 @@ static void xen_platform_ioport_writeb(void *opaque, hwaddr addr,
uint64_t val, unsigned int size)
{
PCIXenPlatformState *s = opaque;
PCIDevice *pci_dev = PCI_DEVICE(s);
switch (addr) {
case 0: /* Platform flags */
platform_fixed_ioport_writeb(opaque, 0, (uint32_t)val);
break;
case 4:
if (val == 1) {
/*
* SUSE unplug for Xenlinux
* xen-kmp used this since xen-3.0.4, instead the official protocol
* from xen-3.3+ It did an unconditional "outl(1, (ioaddr + 4));"
* Pre VMDP 1.7 used 4 and 8 depending on how VMDP was configured.
* If VMDP was to control both disk and LAN it would use 4.
* If it controlled just disk or just LAN, it would use 8 below.
*/
pci_unplug_disks(pci_dev->bus);
pci_unplug_nics(pci_dev->bus);
}
break;
case 8:
log_writeb(s, (uint32_t)val);
switch (val) {
case 1:
pci_unplug_disks(pci_dev->bus);
break;
case 2:
pci_unplug_nics(pci_dev->bus);
break;
default:
log_writeb(s, (uint32_t)val);
break;
}
break;
default:
break;

4
hw/usb/xen-usb.c
View File

@ -160,7 +160,7 @@ static int usbback_gnttab_map(struct usbback_req *usbback_req)
for (i = 0; i < nr_segs; i++) {
if ((unsigned)usbback_req->req.seg[i].offset +
(unsigned)usbback_req->req.seg[i].length > PAGE_SIZE) {
(unsigned)usbback_req->req.seg[i].length > XC_PAGE_SIZE) {
xen_be_printf(xendev, 0, "segment crosses page boundary\n");
return -EINVAL;
}
@ -183,7 +183,7 @@ static int usbback_gnttab_map(struct usbback_req *usbback_req)
for (i = 0; i < usbback_req->nr_buffer_segs; i++) {
seg = usbback_req->req.seg + i;
addr = usbback_req->buffer + i * PAGE_SIZE + seg->offset;
addr = usbback_req->buffer + i * XC_PAGE_SIZE + seg->offset;
qemu_iovec_add(&usbback_req->packet.iov, addr, seg->length);
}
}