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criu/include/cpu.h

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hdrs: Fixup reinclusion preprocessor constants Make them look like __CR_<smth>_H__ with sed -e '1,2s/#\(ifndef\|define\) _\?_\?\(CR_\)\?/#\1 __CR_/' -e '1,2s/_H_\?_\?.*$/_H__/' on every header file. Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2012-12-24 15:36:14 +04:00
#ifndef __CR_CPU_H__
#define __CR_CPU_H__
cpu: Add code to fetch/test cpuinfo data This patch add ability to test /proc/cpuinfo data we're interested in at the moment. The code provides the following functionality - cpu_init, to parse cpuinfo and check if the host cpu we're running on is suitable enough for FPU checkpoint/restore. If FPU present then there must be at least fxsave capability present - cpu_set_feature/cpu_has_feature helpers which provides to test certain bits and set them where needed (we need to set bits when parse cpuinfo) Note, we reserve space for all cpuinfo bits known by the kernel at moment, while use only three FPU related bits for a while. This is done because we might need to use or find out other features in future. After all it's just 40 bytes of memory needed to keep all possible bits. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2012-12-21 17:35:34 +04:00
cpu: Make cpu routines being per-acrh They are really depends on CPU we're running on. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2013-02-18 17:54:49 +04:00
#include "asm/cpu.h"
cpu: Add code to fetch/test cpuinfo data This patch add ability to test /proc/cpuinfo data we're interested in at the moment. The code provides the following functionality - cpu_init, to parse cpuinfo and check if the host cpu we're running on is suitable enough for FPU checkpoint/restore. If FPU present then there must be at least fxsave capability present - cpu_set_feature/cpu_has_feature helpers which provides to test certain bits and set them where needed (we need to set bits when parse cpuinfo) Note, we reserve space for all cpuinfo bits known by the kernel at moment, while use only three FPU related bits for a while. This is done because we might need to use or find out other features in future. After all it's just 40 bytes of memory needed to keep all possible bits. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2012-12-21 17:35:34 +04:00
extern bool cpu_has_feature(unsigned int feature);
extern int cpu_init(void);
cpuinfo: x86 -- Add dump and validation of cpuinfo image, v2 On Wed, Oct 01, 2014 at 04:57:40PM +0400, Pavel Emelyanov wrote: > On 10/01/2014 01:07 AM, Cyrill Gorcunov wrote: > > On Tue, Sep 30, 2014 at 09:18:53PM +0400, Cyrill Gorcunov wrote: > >> If a user requested criu to dump cpuinfo image then we > >> write one on dump and verify on restore. At the moment > >> we require all cpu feature bits to match the destination > >> cpu in a sake of simplicity, but in future we need deps > >> engine which would filer out bits and test if cpu we're > >> restoring on is more capable than one we were dumping at > >> allowing to proceed restore procedure. > >> > >> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> > > > > Updated to new img format Something like attached? >From 59272a9514311e6736cddee08d5f88aa95d49189 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov <gorcunov@openvz.org> Date: Thu, 25 Sep 2014 16:04:10 +0400 Subject: [PATCH] cpuinfo: x86 -- Add dump and validation of cpuinfo image If a user requested criu to dump cpuinfo image then we write one on dump and verify on restore. At the moment we require all cpu feature bits to match the destination cpu in a sake of simplicity, but in future we need deps engine which would filer out bits and test if cpu we're restoring on is more capable than one we were dumping at allowing to proceed restore procedure. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2014-10-01 17:53:50 +04:00
extern int cpu_dump_cpuinfo(void);
extern int cpu_validate_cpuinfo(void);
cpuinfo: Add "cpuinfo [dump|check]" commands, v2 On Wed, Oct 01, 2014 at 05:51:09PM +0400, Pavel Emelyanov wrote: > > Yes, what you've been expecting? > > if (!strcmp(argv[optind])) > return cpu_cap_check() > > or smth like this. updated. So if it become confusing -- feel free to merge [1;9] and ping me to resend the rest, or pick up from attachements. >From 6af96ff63ac82f9566c3cba9c116dc67698c9797 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov <gorcunov@openvz.org> Date: Tue, 30 Sep 2014 18:33:40 +0400 Subject: [PATCH] cpuinfo: Add "cpuinfo [dump|check]" commands They allow to validate cpuinfo information without running complete dump/restore actions. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2014-10-01 18:56:41 +04:00
extern int cpuinfo_dump(void);
extern int cpuinfo_check(void);
cpu: Add code to fetch/test cpuinfo data This patch add ability to test /proc/cpuinfo data we're interested in at the moment. The code provides the following functionality - cpu_init, to parse cpuinfo and check if the host cpu we're running on is suitable enough for FPU checkpoint/restore. If FPU present then there must be at least fxsave capability present - cpu_set_feature/cpu_has_feature helpers which provides to test certain bits and set them where needed (we need to set bits when parse cpuinfo) Note, we reserve space for all cpuinfo bits known by the kernel at moment, while use only three FPU related bits for a while. This is done because we might need to use or find out other features in future. After all it's just 40 bytes of memory needed to keep all possible bits. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2012-12-21 17:35:34 +04:00
headers: Unify include guards (in comments) and a few fixes - fix names in comments - add empty lines where needed - fix rbtree.h - fix syscall-types.h Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
2012-12-25 22:40:24 +04:00
#endif /* __CR_CPU_H__ */
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