kernel/linux - upd.dev

kernel/linux

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xen: use the hvc console infrastructure for Xen console Implement a Xen back-end for hvc console. * * * Add early printk support via hvc console, enable using "earlyprintk=xen" on the kernel command line. From: Gerd Hoffmann <kraxel@suse.de> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Olof Johansson <olof@lixom.net> 2007-07-17 18:37:06 -07:00




xen: fix "xen: implement save/restore" -tip testing found the following build breakage: drivers/built-in.o: In function `xen_suspend': manage.c:(.text+0x4390f): undefined reference to `xen_console_resume' with this config: http://redhat.com/~mingo/misc/config-Thu_May_29_09_23_16_CEST_2008.bad i have bisected it down to: \| commit 0e91398f2a5d4eb6b07df8115917d0d1cf3e9b58 \| Author: Jeremy Fitzhardinge <jeremy@goop.org> \| Date: Mon May 26 23:31:27 2008 +0100 \| \| xen: implement save/restore the problem is that drivers/xen/manage.c is built unconditionally if CONFIG_XEN is enabled and makes use of xen_suspend(), but drivers/char/hvc_xen.c, where the xen_suspend() method is implemented, is only build if CONFIG_HVC_XEN=y as well. i have solved this by providing a NOP implementation for xen_suspend() in the !CONFIG_HVC_XEN case. Signed-off-by: Ingo Molnar <mingo@elte.hu> 2008-05-29 09:31:50 +02:00
xen-console: add save/restore Add code to: 1. Deal with the console page being canonicalized. During save, the console's mfn in the start_info structure is canonicalized to a pfn. In order to deal with that, we always use a copy of the pfn and indirect off that all the time. However, we fall back to using the mfn if the pfn hasn't been initialized yet. 2. Restore the console event channel, and rebind it to the existing irq. Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 2008-05-26 23:31:25 +01:00
xen: add raw console write functions for debug Add a couple of functions which can write directly to the Xen console for debugging. This output ends up on the host's dom0 console (assuming it allows the domain to write there). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 2008-05-26 23:30:59 +01:00
treewide: use __printf not __attribute__((format(printf,...))) Standardize the style for compiler based printf format verification. Standardized the location of __printf too. Done via script and a little typing. $ grep -rPl --include=.[ch] -w "__attribute__" \| \ grep -vP "^(tools\|scripts\|include/linux/compiler-gcc.h)" \| \ xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s\(\s\(\sformat\s\(\sprintf\s,\s(.+)\s,\s(.+)\s\)\s\)\s\)/__printf($1, $2)/g ; print; }' [akpm@linux-foundation.org: revert arch bits] Signed-off-by: Joe Perches <joe@perches.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2011-10-31 17:11:33 -07:00
xen: add raw console write functions for debug Add a couple of functions which can write directly to the Xen console for debugging. This output ends up on the host's dom0 console (assuming it allows the domain to write there). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 2008-05-26 23:30:59 +01:00
xen64: fix !HVC_XEN build dependency fix: arch/x86/xen/built-in.o: In function `set_page_prot': enlighten.c:(.text+0x111d): undefined reference to `xen_raw_printk' arch/x86/xen/built-in.o: In function `xen_start_kernel': : undefined reference to `xen_raw_console_write' arch/x86/xen/built-in.o: In function `xen_start_kernel': : undefined reference to `xen_raw_console_write' Signed-off-by: Ingo Molnar <mingo@elte.hu> 2008-07-09 13:15:03 +02:00


treewide: use __printf not __attribute__((format(printf,...))) Standardize the style for compiler based printf format verification. Standardized the location of __printf too. Done via script and a little typing. $ grep -rPl --include=.[ch] -w "__attribute__" \| \ grep -vP "^(tools\|scripts\|include/linux/compiler-gcc.h)" \| \ xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s\(\s\(\sformat\s\(\sprintf\s,\s(.+)\s,\s(.+)\s\)\s\)\s\)/__printf($1, $2)/g ; print; }' [akpm@linux-foundation.org: revert arch bits] Signed-off-by: Joe Perches <joe@perches.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2011-10-31 17:11:33 -07:00
xen: Add __attribute__((format(printf... where appropriate Use the compiler to verify printf formats and arguments. Fix fallout. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 2011-06-12 09:21:13 -07:00
xen64: fix !HVC_XEN build dependency fix: arch/x86/xen/built-in.o: In function `set_page_prot': enlighten.c:(.text+0x111d): undefined reference to `xen_raw_printk' arch/x86/xen/built-in.o: In function `xen_start_kernel': : undefined reference to `xen_raw_console_write' arch/x86/xen/built-in.o: In function `xen_start_kernel': : undefined reference to `xen_raw_console_write' Signed-off-by: Ingo Molnar <mingo@elte.hu> 2008-07-09 13:15:03 +02:00
xen: add raw console write functions for debug Add a couple of functions which can write directly to the Xen console for debugging. This output ends up on the host's dom0 console (assuming it allows the domain to write there). Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 2008-05-26 23:30:59 +01:00
xen: use the hvc console infrastructure for Xen console Implement a Xen back-end for hvc console. * * * Add early printk support via hvc console, enable using "earlyprintk=xen" on the kernel command line. From: Gerd Hoffmann <kraxel@suse.de> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Olof Johansson <olof@lixom.net> 2007-07-17 18:37:06 -07:00