xen/magic_ioport_compat.patch

Make our PV drivers work  with older hosts that do not recognize the new PV driver protocol. 

Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com>

Index: xen-4.6.0-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
===================================================================
--- xen-4.6.0-testing.orig/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
+++ xen-4.6.0-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
@@ -336,7 +336,10 @@ static int check_platform_magic(struct d
 
 	if (magic != XEN_IOPORT_MAGIC_VAL) {
 		err = "unrecognised magic value";
-		goto no_dev;
+		/*
+		 * Older backend; just return 0 to be compatible.
+		 */
+		return 0;
 	}
 
 	protocol = inb(XEN_IOPORT_PROTOVER);
- bnc#564406 - Make the new PV drivers work with older hosts that do not understand the new PV driver protocol. - Upstream Xen version renamed to 4.0.0 in changeset 20624 & 20625. - fate#307594: HP-MCBS: XEN: support NR_CPUS=256 This is a spec file change (xen.spec) - bnc#555152 - "NAME" column in xentop (SLES11) output limited to 10 characters unlike SLES10 The update to c/s 20572 includes this fix (at c/s 20567). - Modify xen-paths.diff - Merge xend-tap-fix.patch to xen-domUloader.diff remove part of it which accepted by upstream - Load gntdev module in xend init script similar to blkbk, netbk, etc. - Backport dmmd from sles11/xen block-dmmd xen-qemu-iscsi-fix.patch xen.spec - Fix regression when create_vbd for tap xend-tap-fix.patch - Temporarily disable libxl because of libconfig dependency. - fate#302864 domUloader support lvm in disk domUloader.py Note: for test in Beta1, if not good, remove it - fate#302864 domUloader support fs on whole disk domUloader.py - Turn KMPs back on now that kernel side fix is checked in. - fate#304415 VMM: ability to switch networking mode Add vif-route-ifup to handle routed configurations using sysconfig scripts. vif-route-ifup.patch - fate#307540 USB for Xen VMs usb-add.patch - fate#305545 XEN extra descriptive field within xenstore add_des.patch - Update to Xen version 3.5.0 for the following features. fate#304226 XEN: FlexMigration feature of VT-x2 support fate#305004 Add SR-IOV PF and VF drivers to Vt-d enabled Xen fate#306830 T states in Xen controlling by MSR fate#306832 Fix for xen panic on new processors fate#306833 Westmere and Nehalem-EX: Add support for Pause Loop exiting feature for Xen fate#306835 Xen: server virtual power management enhacement fate#306837 VT-d2 - PCI SIG ATS support fate#306872 Xen: Node manager support P/T-states change when Vt-d enable fate#306873 Xen: SMP guest live migration may fail with hap=1 on NHM fate#306875 Westmere: LT-SX (Xen) fate#306891 RAS features for Xen: Add support for Machine Check and CPU/Memory online/offline features fate#307322 1GB page support in Xen fate#307324 Xen IOMMU support OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=26 2010-01-16 01:12:54 +01:00			`Make our PV drivers work with older hosts that do not recognize the new PV driver protocol.`

			`Signed-off-by: K. Y. Srinivasan <ksrinivasan@novell.com>`

- Update to Xen Version 4.6.0 xen-4.6.0-testing-src.tar.bz2 mini-os.tar.bz2 blktap2-no-uninit.patch stubdom-have-iovec.patch - Renamed xsa149.patch to CVE-2015-7969-xsa149.patch - Dropped patches now contained in tarball or unnecessary xen-4.5.2-testing-src.tar.bz2 54c2553c-grant-table-use-uint16_t-consistently-for-offset-and-length.patch 54ca33bc-grant-table-refactor-grant-copy-to-reduce-duplicate-code.patch 54ca340e-grant-table-defer-releasing-pages-acquired-in-a-grant-copy.patch 54f4985f-libxl-fix-libvirtd-double-free.patch 55103616-vm-assist-prepare-for-discontiguous-used-bit-numbers.patch 551ac326-xentop-add-support-for-qdisk.patch 552d0fd2-x86-hvm-don-t-include-asm-spinlock-h.patch 552d0fe8-x86-mtrr-include-asm-atomic.h.patch 552d293b-x86-vMSI-X-honor-all-mask-requests.patch 552d2966-x86-vMSI-X-add-valid-bits-for-read-acceleration.patch 5537a4d8-libxl-use-DEBUG-log-level-instead-of-INFO.patch 5548e903-domctl-don-t-truncate-XEN_DOMCTL_max_mem-requests.patch 5548e95d-x86-allow-to-suppress-M2P-user-mode-exposure.patch 554c7aee-x86-provide-arch_fetch_and_add.patch 554c7b00-arm-provide-arch_fetch_and_add.patch 554cc211-libxl-add-qxl.patch 55534b0a-x86-provide-add_sized.patch 55534b25-arm-provide-add_sized.patch 5555a4f8-use-ticket-locks-for-spin-locks.patch 5555a5b9-x86-arm-remove-asm-spinlock-h.patch 5555a8ec-introduce-non-contiguous-allocation.patch 556d973f-unmodified-drivers-tolerate-IRQF_DISABLED-being-undefined.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=387 2015-11-11 18:04:52 +01:00			`Index: xen-4.6.0-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c`
- Update to Xen 4.4.0 RC1 c/s 28233 - Drop 32bit support from spec file - Dropped 520d417d-xen-Add-stdbool.h-workaround-for-BSD.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=282 2014-01-02 20:09:07 +01:00			`===================================================================`
- Update to Xen Version 4.6.0 xen-4.6.0-testing-src.tar.bz2 mini-os.tar.bz2 blktap2-no-uninit.patch stubdom-have-iovec.patch - Renamed xsa149.patch to CVE-2015-7969-xsa149.patch - Dropped patches now contained in tarball or unnecessary xen-4.5.2-testing-src.tar.bz2 54c2553c-grant-table-use-uint16_t-consistently-for-offset-and-length.patch 54ca33bc-grant-table-refactor-grant-copy-to-reduce-duplicate-code.patch 54ca340e-grant-table-defer-releasing-pages-acquired-in-a-grant-copy.patch 54f4985f-libxl-fix-libvirtd-double-free.patch 55103616-vm-assist-prepare-for-discontiguous-used-bit-numbers.patch 551ac326-xentop-add-support-for-qdisk.patch 552d0fd2-x86-hvm-don-t-include-asm-spinlock-h.patch 552d0fe8-x86-mtrr-include-asm-atomic.h.patch 552d293b-x86-vMSI-X-honor-all-mask-requests.patch 552d2966-x86-vMSI-X-add-valid-bits-for-read-acceleration.patch 5537a4d8-libxl-use-DEBUG-log-level-instead-of-INFO.patch 5548e903-domctl-don-t-truncate-XEN_DOMCTL_max_mem-requests.patch 5548e95d-x86-allow-to-suppress-M2P-user-mode-exposure.patch 554c7aee-x86-provide-arch_fetch_and_add.patch 554c7b00-arm-provide-arch_fetch_and_add.patch 554cc211-libxl-add-qxl.patch 55534b0a-x86-provide-add_sized.patch 55534b25-arm-provide-add_sized.patch 5555a4f8-use-ticket-locks-for-spin-locks.patch 5555a5b9-x86-arm-remove-asm-spinlock-h.patch 5555a8ec-introduce-non-contiguous-allocation.patch 556d973f-unmodified-drivers-tolerate-IRQF_DISABLED-being-undefined.patch OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=387 2015-11-11 18:04:52 +01:00			`--- xen-4.6.0-testing.orig/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c`
			`+++ xen-4.6.0-testing/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c`
			`@@ -336,7 +336,10 @@ static int check_platform_magic(struct d`
- bnc#564406 - Make the new PV drivers work with older hosts that do not understand the new PV driver protocol. - Upstream Xen version renamed to 4.0.0 in changeset 20624 & 20625. - fate#307594: HP-MCBS: XEN: support NR_CPUS=256 This is a spec file change (xen.spec) - bnc#555152 - "NAME" column in xentop (SLES11) output limited to 10 characters unlike SLES10 The update to c/s 20572 includes this fix (at c/s 20567). - Modify xen-paths.diff - Merge xend-tap-fix.patch to xen-domUloader.diff remove part of it which accepted by upstream - Load gntdev module in xend init script similar to blkbk, netbk, etc. - Backport dmmd from sles11/xen block-dmmd xen-qemu-iscsi-fix.patch xen.spec - Fix regression when create_vbd for tap xend-tap-fix.patch - Temporarily disable libxl because of libconfig dependency. - fate#302864 domUloader support lvm in disk domUloader.py Note: for test in Beta1, if not good, remove it - fate#302864 domUloader support fs on whole disk domUloader.py - Turn KMPs back on now that kernel side fix is checked in. - fate#304415 VMM: ability to switch networking mode Add vif-route-ifup to handle routed configurations using sysconfig scripts. vif-route-ifup.patch - fate#307540 USB for Xen VMs usb-add.patch - fate#305545 XEN extra descriptive field within xenstore add_des.patch - Update to Xen version 3.5.0 for the following features. fate#304226 XEN: FlexMigration feature of VT-x2 support fate#305004 Add SR-IOV PF and VF drivers to Vt-d enabled Xen fate#306830 T states in Xen controlling by MSR fate#306832 Fix for xen panic on new processors fate#306833 Westmere and Nehalem-EX: Add support for Pause Loop exiting feature for Xen fate#306835 Xen: server virtual power management enhacement fate#306837 VT-d2 - PCI SIG ATS support fate#306872 Xen: Node manager support P/T-states change when Vt-d enable fate#306873 Xen: SMP guest live migration may fail with hap=1 on NHM fate#306875 Westmere: LT-SX (Xen) fate#306891 RAS features for Xen: Add support for Machine Check and CPU/Memory online/offline features fate#307322 1GB page support in Xen fate#307324 Xen IOMMU support OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=26 2010-01-16 01:12:54 +01:00
			`if (magic != XEN_IOPORT_MAGIC_VAL) {`
Updating link to change in openSUSE:Factory/xen revision 84.0 OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=24e6c52baae4dc9cfba9b8bb18434dec 2010-03-02 01:46:56 +01:00			`err = "unrecognised magic value";`
			`- goto no_dev;`
			`+ /*`
- bnc#564406 - Make the new PV drivers work with older hosts that do not understand the new PV driver protocol. - Upstream Xen version renamed to 4.0.0 in changeset 20624 & 20625. - fate#307594: HP-MCBS: XEN: support NR_CPUS=256 This is a spec file change (xen.spec) - bnc#555152 - "NAME" column in xentop (SLES11) output limited to 10 characters unlike SLES10 The update to c/s 20572 includes this fix (at c/s 20567). - Modify xen-paths.diff - Merge xend-tap-fix.patch to xen-domUloader.diff remove part of it which accepted by upstream - Load gntdev module in xend init script similar to blkbk, netbk, etc. - Backport dmmd from sles11/xen block-dmmd xen-qemu-iscsi-fix.patch xen.spec - Fix regression when create_vbd for tap xend-tap-fix.patch - Temporarily disable libxl because of libconfig dependency. - fate#302864 domUloader support lvm in disk domUloader.py Note: for test in Beta1, if not good, remove it - fate#302864 domUloader support fs on whole disk domUloader.py - Turn KMPs back on now that kernel side fix is checked in. - fate#304415 VMM: ability to switch networking mode Add vif-route-ifup to handle routed configurations using sysconfig scripts. vif-route-ifup.patch - fate#307540 USB for Xen VMs usb-add.patch - fate#305545 XEN extra descriptive field within xenstore add_des.patch - Update to Xen version 3.5.0 for the following features. fate#304226 XEN: FlexMigration feature of VT-x2 support fate#305004 Add SR-IOV PF and VF drivers to Vt-d enabled Xen fate#306830 T states in Xen controlling by MSR fate#306832 Fix for xen panic on new processors fate#306833 Westmere and Nehalem-EX: Add support for Pause Loop exiting feature for Xen fate#306835 Xen: server virtual power management enhacement fate#306837 VT-d2 - PCI SIG ATS support fate#306872 Xen: Node manager support P/T-states change when Vt-d enable fate#306873 Xen: SMP guest live migration may fail with hap=1 on NHM fate#306875 Westmere: LT-SX (Xen) fate#306891 RAS features for Xen: Add support for Machine Check and CPU/Memory online/offline features fate#307322 1GB page support in Xen fate#307324 Xen IOMMU support OBS-URL: https://build.opensuse.org/package/show/Virtualization/xen?expand=0&rev=26 2010-01-16 01:12:54 +01:00			`+ * Older backend; just return 0 to be compatible.`
			`+ */`
			`+ return 0;`
			`}`

			`protocol = inb(XEN_IOPORT_PROTOVER);`