6981894d9a
Explicitly set two new options and drop ppc libatomic patch that was not accepted upstream and did not resolve all failures OBS-URL: https://build.opensuse.org/request/show/429462 OBS-URL: https://build.opensuse.org/package/show/Virtualization/qemu?expand=0&rev=314
48 lines
1.9 KiB
Diff
48 lines
1.9 KiB
Diff
From 21e9a3360b1a1845aee3eb501d15cb56f6024057 Mon Sep 17 00:00:00 2001
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From: Olaf Hering <ohering@suse.de>
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Date: Tue, 21 Jun 2016 18:42:45 +0200
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Subject: [PATCH] xen: SUSE xenlinux unplug for emulated PCI
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Implement SUSE specific unplug protocol for emulated PCI devices
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in PVonHVM guests
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(bsc#953339, bsc#953362, bsc#953518, bsc#984981)
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Signed-off-by: Olaf Hering <ohering@suse.de>
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---
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hw/i386/xen/xen_platform.c | 22 ++++++++++++++++++++++
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1 file changed, 22 insertions(+)
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diff --git a/hw/i386/xen/xen_platform.c b/hw/i386/xen/xen_platform.c
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index aa78393..48800c1 100644
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--- a/hw/i386/xen/xen_platform.c
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+++ b/hw/i386/xen/xen_platform.c
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@@ -314,6 +314,28 @@ static void xen_platform_ioport_writeb(void *opaque, hwaddr addr,
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case 0: /* Platform flags */
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platform_fixed_ioport_writeb(opaque, 0, (uint32_t)val);
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break;
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+ case 4:
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+ if (val == 1 && size == 1) {
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+ /*
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+ * SUSE unplug for Xenlinux
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+ * xen-kmp used this since xen-3.0.4, instead the official protocol from xen-3.3+
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+ * It did an unconditional "outl(1, (ioaddr + 4));"
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+ * This approach was used until openSUSE 12.3, up to SLE11SP3 and in SLE10.
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+ * Starting with openSUSE 13.1, SLE11SP4 and SLE12 the official protocol is used.
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+ * pre VMDP 1.7 made use of 4 and 8 depending on how vmdp was configured.
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+ * If VMDP was to control both disk and LAN it would use 4.
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+ * If it controlled just disk or just LAN, it would use 8 below.
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+ */
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+ PCIDevice *pci_dev = PCI_DEVICE(s);
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+ DPRINTF("unplug disks\n");
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+ blk_drain_all();
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+ blk_flush_all();
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+ pci_unplug_disks(pci_dev->bus);
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+ DPRINTF("unplug nics\n");
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+ pci_unplug_nics(pci_dev->bus);
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+ DPRINTF("done\n");
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+ }
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+ break;
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case 8:
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log_writeb(s, (uint32_t)val);
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break;
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