linux-toradex.git/arch/x86/include/asm/lguest.h, branch v3.12 Linux kernel for Apalis and Colibri modules lguest: map Switcher below fixmap. 2013-04-22T06:15:03+00:00 Rusty Russell rusty@rustcorp.com.au 2013-04-22T04:40:42+00:00 6b39271746de131366a14bcf04f5740cdc4abdef Now we've adjusted all the code, we can simply set switcher_addr to wherever it needs to go below the fixmaps, rather than asserting that it should be so. With large NR_CPUS and PAE, people were hitting the "mapping switcher would thwack fixmap" message. Reported-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 
Now we've adjusted all the code, we can simply set switcher_addr to
wherever it needs to go below the fixmaps, rather than asserting that
it should be so.

With large NR_CPUS and PAE, people were hitting the "mapping switcher
would thwack fixmap" message.

Reported-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
lguest: assume Switcher text is a single page. 2013-04-22T06:01:36+00:00 Rusty Russell rusty@rustcorp.com.au 2013-04-22T04:40:38+00:00 93a2cdff98243df06bafd3c4f3b31b38f0d0fe3e ie. SHARED_SWITCHER_PAGES == 1. It is well under a page, and it's a minor simplification: it's nice to have *one* simplification in a patch series! Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 
ie. SHARED_SWITCHER_PAGES == 1.  It is well under a page, and it's a
minor simplification: it's nice to have *one* simplification in a
patch series!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
lguest: prepare to make SWITCHER_ADDR a variable. 2013-04-22T06:01:33+00:00 Rusty Russell rusty@rustcorp.com.au 2013-04-22T04:40:37+00:00 406a590ba105bfb7b67952f0a5f948e0d374e03e We currently use the whole top PGD entry for the switcher, but that's hitting the fixmap in some configurations (mainly, large NR_CPUS). Introduce a variable, currently set to the constant. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 
We currently use the whole top PGD entry for the switcher, but that's
hitting the fixmap in some configurations (mainly, large NR_CPUS).
Introduce a variable, currently set to the constant.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Merge commit 'origin/x86/urgent' into x86/asm 2009-08-25T22:40:29+00:00 H. Peter Anvin hpa@zytor.com 2009-08-25T22:40:29+00:00 e8a2eb47e6ca03d4a4f98f0beef73720c5dddc0c 






x86: Introduce GDT_ENTRY_INIT()
2009-08-08T15:44:11+00:00

Akinobu Mita
akinobu.mita@gmail.com

2009-07-18T15:12:20+00:00

1e5de18278e6862f4198412b5059a03770fa816a

GDT_ENTRY_INIT is static initializer of desc_struct.

We already have similar macro GDT_ENTRY() but it's static
initializer for u64 and it cannot be used for desc_struct.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090718151219.GD11294@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>





GDT_ENTRY_INIT is static initializer of desc_struct.

We already have similar macro GDT_ENTRY() but it's static
initializer for u64 and it cannot be used for desc_struct.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090718151219.GD11294@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>







lguest: fix comment style
2009-07-30T06:33:45+00:00

Rusty Russell
rusty@rustcorp.com.au

2009-07-30T22:03:45+00:00

2e04ef76916d1e29a077ea9d0f2003c8fd86724d

I don't really notice it (except to begrudge the extra vertical
space), but Ingo does.  And he pointed out that one excuse of lguest
is as a teaching tool, it should set a good example.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@redhat.com>





I don't really notice it (except to begrudge the extra vertical
space), but Ingo does.  And he pointed out that one excuse of lguest
is as a teaching tool, it should set a good example.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@redhat.com>







lguest: PAE support
2009-06-12T12:57:08+00:00

Matias Zabaljauregui
zabaljauregui@gmail.com

2009-06-13T04:27:07+00:00

acdd0b6292b282c4511897ac2691a47befbf1c6a

This version requires that host and guest have the same PAE status.
NX cap is not offered to the guest, yet.

Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>





This version requires that host and guest have the same PAE status.
NX cap is not offered to the guest, yet.

Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>







x86: cleanup some remaining usages of NR_CPUS where s/b nr_cpu_ids
2009-01-03T18:00:55+00:00

Mike Travis
travis@sgi.com

2009-01-01T02:08:46+00:00

9628937d5b37169151c5f6bbd40919c6ac958a46

Impact: Reduce future system panics due to cpumask operations using NR_CPUS

Insure that code does not look at bits >= nr_cpu_ids as when cpumasks are
allocated based on nr_cpu_ids, these extra bits will not be defined.

Also some other minor updates:

   * change in to use cpu accessor function set_cpu_present() instead of
     directly accessing cpu_present_map w/cpu_clear() [arch/x86/kernel/reboot.c]

   * use cpumask_of() instead of &cpumask_of_cpu() [arch/x86/kernel/reboot.c]

   * optimize some cpu_mask_to_apicid_and functions.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>





Impact: Reduce future system panics due to cpumask operations using NR_CPUS

Insure that code does not look at bits >= nr_cpu_ids as when cpumasks are
allocated based on nr_cpu_ids, these extra bits will not be defined.

Also some other minor updates:

   * change in to use cpu accessor function set_cpu_present() instead of
     directly accessing cpu_present_map w/cpu_clear() [arch/x86/kernel/reboot.c]

   * use cpumask_of() instead of &cpumask_of_cpu() [arch/x86/kernel/reboot.c]

   * optimize some cpu_mask_to_apicid_and functions.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>







x86: Fix ASM_X86__ header guards
2008-10-23T05:55:23+00:00

H. Peter Anvin
hpa@zytor.com

2008-10-23T05:26:29+00:00

1965aae3c98397aad957412413c07e97b1bd4e64

Change header guards named "ASM_X86__*" to "_ASM_X86_*" since:

a. the double underscore is ugly and pointless.
b. no leading underscore violates namespace constraints.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>





Change header guards named "ASM_X86__*" to "_ASM_X86_*" since:

a. the double underscore is ugly and pointless.
b. no leading underscore violates namespace constraints.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>







x86, um: ... and asm-x86 move
2008-10-23T05:55:20+00:00

Al Viro
viro@zeniv.linux.org.uk

2008-08-18T01:05:42+00:00

bb8985586b7a906e116db835c64773b7a7d51663

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>





Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>