* Miklos Szeredi <[EMAIL PROTECTED]> wrote:
> FASTCALL is defined empty in -mm, but UML is not compiled with
> -mregparm=3 and so this breaks things (I noticed problems with
> rwsem_down_write_failed).
>
> Tried recompiling UML with -mregparm=3, but that resulted in a strange
> failure immedi
Andi Kleen wrote:
> On Wed, Jan 09, 2008 at 09:14:04PM -0500, Jeff Dike wrote:
>> On Wed, Jan 09, 2008 at 10:50:48PM +0100, Miklos Szeredi wrote:
FASTCALL is useless and should not make a difference. It enables
regparm on specific functions, but that should not make a difference
if i
On Wed, Jan 09, 2008 at 05:09:49PM -0500, Jeff Dike wrote:
> These patches implement host and guest SKAS4 support for both 32- and
> 64-bit x86.
I forgot to include a single rolled-up patch, so it's below - again,
against 2.6.24-rc7.
Jeff
--
Work email - jdike at
On Wed, Jan 09, 2008 at 05:09:54PM -0500, Jeff Dike wrote:
> Add get_mm and switch_mm support to UML.
This patch had a couple of bugs. A fixed patch is below.
Jeff
--
Work email - jdike at linux dot intel dot com
diff --git a/arch/um/include/as-layout.h b/arch/
On Wed, Jan 09, 2008 at 09:14:04PM -0500, Jeff Dike wrote:
> On Wed, Jan 09, 2008 at 10:50:48PM +0100, Miklos Szeredi wrote:
> > > FASTCALL is useless and should not make a difference. It enables
> > > regparm on specific functions, but that should not make a difference
> > > if it works or not.
>
On Wed, Jan 09, 2008 at 10:50:48PM +0100, Miklos Szeredi wrote:
> > FASTCALL is useless and should not make a difference. It enables
> > regparm on specific functions, but that should not make a difference
> > if it works or not.
>
> __down_write() in include/asm-x86/rwsem.h seems to assume, that
On Wed, 9 Jan 2008, Miklos Szeredi wrote:
> FASTCALL is defined empty in -mm, but UML is not compiled with
> -mregparm=3 and so this breaks things (I noticed problems with
> rwsem_down_write_failed).
>
> Tried recompiling UML with -mregparm=3, but that resulted in a strange
> failure immediately
This is the new_mm, switch_mm, and /proc//mm implementation for
32- and 64-bit x86 and UML.
Index: linux-2.6-skas4/include/asm-x86/unistd_32.h
===
--- linux-2.6-skas4.orig/include/asm-x86/unistd_32.h2008-01-09
16:29:06.0
Add get_mm and switch_mm support to UML.
Index: linux-2.6-skas4/arch/um/include/skas/mm_id.h
===
--- linux-2.6-skas4.orig/arch/um/include/skas/mm_id.h 2008-01-09
16:22:13.0 -0500
+++ linux-2.6-skas4/arch/um/include/skas/mm_
UML already had a new_mm(). This is renamed to make_new_mm().
Index: linux-2.6-skas4/arch/um/include/skas/skas.h
===
--- linux-2.6-skas4.orig/arch/um/include/skas/skas.h2008-01-09
16:22:13.0 -0500
+++ linux-2.6-skas4/arc
Add CPU trap number and error code to siginfo_t in the SIGSEGV case for x86.
Index: linux-2.6-skas4/arch/x86/mm/fault_32.c
===
--- linux-2.6-skas4.orig/arch/x86/mm/fault_32.c 2008-01-08 18:48:30.0
-0500
+++ linux-2.6-skas4/ar
Tidy the existing stub code so that the skas4 code can be dropped in.
Index: linux-2.6-skas4/arch/um/os-Linux/skas/mem.c
===
--- linux-2.6-skas4.orig/arch/um/os-Linux/skas/mem.c2008-01-09
15:10:48.0 -0500
+++ linux-2.6-sk
Add guest support for getting page fault information using PTRACE_GETSIGINFO.
The nastiness at the top of arch/um/os-Linux/skas/process.c is
defining the new siginfo_t structure, which requires using CPP to
rename the old one out of the way.
Index: linux-2.6-skas4/arch/um/os-Linux/skas/process.c
These patches implement host and guest SKAS4 support for both 32- and
64-bit x86.
I think the new interfaces here are much more acceptable, so I'm going
to push this to mainline.
What's new:
two new system calls -
new_mm - creates a new address space and returns a file
descriptor refe
Fix a bug which will be important later. x86_64 copy_thread needs to
copy %fs from parent to child.
Got rid of some extraneous tabs while I was here.
Index: linux-2.6-skas4/include/asm-um/processor-x86_64.h
===
--- linux-2.6-skas4.o
Extract the system call execution loop in the stubs into a macro.
A later patch will need this loop, so this makes it available.
Index: linux-2.6-skas4/arch/um/sys-i386/stub.S
===
--- linux-2.6-skas4.orig/arch/um/sys-i386/stub.S
Tidy arch/um/os-Linux/start_up.c in preparation for host SKAS4 testing.
There are now explicit variables for disabling any particular host
capability.
init_registers is moved out of the skas3 testing because it needs to
happen every time, and the skas3 checks will become optional.
Index: linux-2
> FASTCALL is useless and should not make a difference. It enables
> regparm on specific functions, but that should not make a difference
> if it works or not.
__down_write() in include/asm-x86/rwsem.h seems to assume, that the
semaphore pointer is passed in %eax down to rwsem_down_write_failed(),
On Wed, Jan 09, 2008 at 10:20:49PM +0100, Miklos Szeredi wrote:
> > Miklos Szeredi <[EMAIL PROTECTED]> writes:
> >
> > > FASTCALL is defined empty in -mm, but UML is not compiled with
> > > -mregparm=3 and so this breaks things (I noticed problems with
> > > rwsem_down_write_failed).
> > >
> > > T
On Wed, Jan 09, 2008 at 10:20:49PM +0100, Miklos Szeredi wrote:
> > Miklos Szeredi <[EMAIL PROTECTED]> writes:
> >
> > > FASTCALL is defined empty in -mm, but UML is not compiled with
> > > -mregparm=3 and so this breaks things (I noticed problems with
> > > rwsem_down_write_failed).
> > >
> > > T
> Miklos Szeredi <[EMAIL PROTECTED]> writes:
>
> > FASTCALL is defined empty in -mm, but UML is not compiled with
> > -mregparm=3 and so this breaks things (I noticed problems with
> > rwsem_down_write_failed).
> >
> > Tried recompiling UML with -mregparm=3, but that resulted in a strange
> > fail
Miklos Szeredi <[EMAIL PROTECTED]> writes:
> FASTCALL is defined empty in -mm, but UML is not compiled with
> -mregparm=3 and so this breaks things (I noticed problems with
> rwsem_down_write_failed).
>
> Tried recompiling UML with -mregparm=3, but that resulted in a strange
> failure immediately
FASTCALL is defined empty in -mm, but UML is not compiled with
-mregparm=3 and so this breaks things (I noticed problems with
rwsem_down_write_failed).
Tried recompiling UML with -mregparm=3, but that resulted in a strange
failure immediately after startup:
|%G�%@: Invalid argument
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