- 03 9月, 2018 2 次提交
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由 Juergen Gross 提交于
Signed-off-by: NJuergen Gross <jgross@suse.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Cc: xen-devel@lists.xenproject.org Cc: virtualization@lists.linux-foundation.org Cc: akataria@vmware.com Cc: rusty@rustcorp.com.au Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/20180828074026.820-5-jgross@suse.com
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由 Juergen Gross 提交于
Instead of using one large #ifdef CONFIG_XEN_PVHVM in arch/x86/xen/platform-pci-unplug.c add the object file depending on CONFIG_XEN_PVHVM being set. Signed-off-by: NJuergen Gross <jgross@suse.com> Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Reviewed-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Cc: xen-devel@lists.xenproject.org Cc: virtualization@lists.linux-foundation.org Cc: akataria@vmware.com Cc: rusty@rustcorp.com.au Cc: hpa@zytor.com Link: https://lkml.kernel.org/r/20180828074026.820-4-jgross@suse.com
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- 07 2月, 2017 1 次提交
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由 Boris Ostrovsky 提交于
Signed-off-by: NBoris Ostrovsky <boris.ostrovsky@oracle.com> Reviewed-by: NJuergen Gross <jgross@suse.com> Reviewed-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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- 30 9月, 2016 1 次提交
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由 Colin Ian King 提交于
The message is missing a \n, add it. Signed-off-by: NColin Ian King <colin.king@canonical.com> Reviewed-by: NJuergen Gross <jgross@suse.com> Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com>
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- 14 7月, 2016 1 次提交
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由 Paul Gortmaker 提交于
Historically a lot of these existed because we did not have a distinction between what was modular code and what was providing support to modules via EXPORT_SYMBOL and friends. That changed when we forked out support for the latter into the export.h file. This means we should be able to reduce the usage of module.h in code that is obj-y Makefile or bool Kconfig. The advantage in doing so is that module.h itself sources about 15 other headers; adding significantly to what we feed cpp, and it can obscure what headers we are effectively using. Since module.h was the source for init.h (for __init) and for export.h (for EXPORT_SYMBOL) we consider each obj-y/bool instance for the presence of either and replace as needed. Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Acked-by: NJuergen Gross <jgross@suse.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: xen-devel@lists.xenproject.org Link: http://lkml.kernel.org/r/20160714001901.31603-7-paul.gortmaker@windriver.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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- 20 8月, 2015 1 次提交
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由 Colin Ian King 提交于
xen_has_pv_devices() has no parameters, so use the normal void parameter convention to make it match the prototype in the header file include/xen/platform_pci.h. Signed-off-by: NColin Ian King <colin.king@canonical.com> Signed-off-by: NDavid Vrabel <david.vrabel@citrix.com>
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- 04 1月, 2014 2 次提交
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由 Konrad Rzeszutek Wilk 提交于
Since we have xen_has_pv_devices,xen_has_pv_disk_devices, xen_has_pv_nic_devices, and xen_has_pv_and_legacy_disk_devices to figure out the different 'unplug' behaviors - lets use those instead of this single int. Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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由 Konrad Rzeszutek Wilk 提交于
The user has the option of disabling the platform driver: 00:02.0 Unassigned class [ff80]: XenSource, Inc. Xen Platform Device (rev 01) which is used to unplug the emulated drivers (IDE, Realtek 8169, etc) and allow the PV drivers to take over. If the user wishes to disable that they can set: xen_platform_pci=0 (in the guest config file) or xen_emul_unplug=never (on the Linux command line) except it does not work properly. The PV drivers still try to load and since the Xen platform driver is not run - and it has not initialized the grant tables, most of the PV drivers stumble upon: input: Xen Virtual Keyboard as /devices/virtual/input/input5 input: Xen Virtual Pointer as /devices/virtual/input/input6M ------------[ cut here ]------------ kernel BUG at /home/konrad/ssd/konrad/linux/drivers/xen/grant-table.c:1206! invalid opcode: 0000 [#1] SMP Modules linked in: xen_kbdfront(+) xenfs xen_privcmd CPU: 6 PID: 1389 Comm: modprobe Not tainted 3.13.0-rc1upstream-00021-ga6c892b-dirty #1 Hardware name: Xen HVM domU, BIOS 4.4-unstable 11/26/2013 RIP: 0010:[<ffffffff813ddc40>] [<ffffffff813ddc40>] get_free_entries+0x2e0/0x300 Call Trace: [<ffffffff8150d9a3>] ? evdev_connect+0x1e3/0x240 [<ffffffff813ddd0e>] gnttab_grant_foreign_access+0x2e/0x70 [<ffffffffa0010081>] xenkbd_connect_backend+0x41/0x290 [xen_kbdfront] [<ffffffffa0010a12>] xenkbd_probe+0x2f2/0x324 [xen_kbdfront] [<ffffffff813e5757>] xenbus_dev_probe+0x77/0x130 [<ffffffff813e7217>] xenbus_frontend_dev_probe+0x47/0x50 [<ffffffff8145e9a9>] driver_probe_device+0x89/0x230 [<ffffffff8145ebeb>] __driver_attach+0x9b/0xa0 [<ffffffff8145eb50>] ? driver_probe_device+0x230/0x230 [<ffffffff8145eb50>] ? driver_probe_device+0x230/0x230 [<ffffffff8145cf1c>] bus_for_each_dev+0x8c/0xb0 [<ffffffff8145e7d9>] driver_attach+0x19/0x20 [<ffffffff8145e260>] bus_add_driver+0x1a0/0x220 [<ffffffff8145f1ff>] driver_register+0x5f/0xf0 [<ffffffff813e55c5>] xenbus_register_driver_common+0x15/0x20 [<ffffffff813e76b3>] xenbus_register_frontend+0x23/0x40 [<ffffffffa0015000>] ? 0xffffffffa0014fff [<ffffffffa001502b>] xenkbd_init+0x2b/0x1000 [xen_kbdfront] [<ffffffff81002049>] do_one_initcall+0x49/0x170 .. snip.. which is hardly nice. This patch fixes this by having each PV driver check for: - if running in PV, then it is fine to execute (as that is their native environment). - if running in HVM, check if user wanted 'xen_emul_unplug=never', in which case bail out and don't load any PV drivers. - if running in HVM, and if PCI device 5853:0001 (xen_platform_pci) does not exist, then bail out and not load PV drivers. - (v2) if running in HVM, and if the user wanted 'xen_emul_unplug=ide-disks', then bail out for all PV devices _except_ the block one. Ditto for the network one ('nics'). - (v2) if running in HVM, and if the user wanted 'xen_emul_unplug=unnecessary' then load block PV driver, and also setup the legacy IDE paths. In (v3) make it actually load PV drivers. Reported-by: Sander Eikelenboom <linux@eikelenboom.it Reported-by: NAnthony PERARD <anthony.perard@citrix.com> Reported-and-Tested-by: NFabio Fantoni <fabio.fantoni@m2r.biz> Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com> [v2: Add extra logic to handle the myrid ways 'xen_emul_unplug' can be used per Ian and Stefano suggestion] [v3: Make the unnecessary case work properly] [v4: s/disks/ide-disks/ spotted by Fabio] Reviewed-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> [for PCI parts] CC: stable@vger.kernel.org
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- 22 8月, 2012 1 次提交
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由 Konrad Rzeszutek Wilk 提交于
There is no need for those functions/variables to be visible. Make them static and also fix the compile warnings of this sort: drivers/xen/<some file>.c: warning: symbol '<blah>' was not declared. Should it be static? Some of them just require including the header file that declares the functions. Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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- 12 7月, 2011 1 次提交
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由 Raghavendra D Prabhu 提交于
Removing __init from check_platform_magic since it is called by xen_unplug_emulated_devices in non-init contexts (It probably gets inlined because of -finline-functions-called-once, removing __init is more to avoid mismatch being reported). Signed-off-by: NRaghavendra D Prabhu <rprabhu@wnohang.net> Acked-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: NKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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- 02 12月, 2010 1 次提交
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由 Stefano Stabellini 提交于
Early after being resumed we need to unplug again the emulated devices. Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>
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- 23 8月, 2010 2 次提交
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由 Ian Campbell 提交于
It is not immediately clear what this option causes to become ignored. The actual meaning is that it is not necessary to unplug the emulated devices to safely use the PV ones, even if the platform does not support the unplug protocol. (pressumably the user will only add this option if they have ensured that their domain configuration is safe). I think xen_emul_unplug=unnecessary better captures this. Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Acked-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: NStefano Stabellini <Stefano.Stabellini@eu.citrix.com>
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由 Ian Campbell 提交于
this allows the user to disable pvhvm and revert to emulated devices in case of a system misconfiguration (e.g. initramfs with only emulated drivers in it). Signed-off-by: NIan Campbell <ian.campbell@citrix.com> Acked-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Acked-by: NStefano Stabellini <Stefano.Stabellini@eu.citrix.com>
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- 30 7月, 2010 1 次提交
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由 Stefano Stabellini 提交于
This patch introduce a CONFIG_XEN_PVHVM compile time option to enable/disable Xen PV on HVM support. Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>
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- 27 7月, 2010 1 次提交
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由 Stefano Stabellini 提交于
Add a xen_emul_unplug command line option to the kernel to unplug xen emulated disks and nics. Set the default value of xen_emul_unplug depending on whether or not the Xen PV frontends and the Xen platform PCI driver have been compiled for this kernel (modules or built-in are both OK). The user can specify xen_emul_unplug=ignore to enable PV drivers on HVM even if the host platform doesn't support unplug. Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: NJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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