Displaying 20 results from an estimated 8000 matches similar to: "[PATCH 1/4] x86 paravirt_ops: create no_paravirt.h for native ops"
2007 Apr 18
2
[PATCH 1/3] Paravirtualization: Kernel Ring Cleanups
Hi all,
I've been looking at finding common ground between the VMI, Xen and
other paravirtualization approaches, and after some discussion, we're
getting somewhere.
These first two patches are the fundamentals, stolen mainly from the
VMI patches: removing assumptions about the kernel running in ring 0,
and macro-izing all the obvious para-virtualize-needing insns. The
third patch is
2007 Apr 18
2
[PATCH 1/3] Paravirtualization: Kernel Ring Cleanups
Hi all,
I've been looking at finding common ground between the VMI, Xen and
other paravirtualization approaches, and after some discussion, we're
getting somewhere.
These first two patches are the fundamentals, stolen mainly from the
VMI patches: removing assumptions about the kernel running in ring 0,
and macro-izing all the obvious para-virtualize-needing insns. The
third patch is
2007 Dec 06
51
[PATCH 0/19] desc_struct integration
Hi,
this is a series of patches that unify the struct desc_struct and friends
across x86_64 and i386. As usual, it provides paravirt capabilities as a
side-effect for x86_64.
I consider the main goal, namely, of unifying the desc_struct, an ongoing
effort, being this the beginning. A lot of old code has to be touched to
accomplish that.
I don't consider this patch ready for inclusion.
2007 Dec 06
51
[PATCH 0/19] desc_struct integration
Hi,
this is a series of patches that unify the struct desc_struct and friends
across x86_64 and i386. As usual, it provides paravirt capabilities as a
side-effect for x86_64.
I consider the main goal, namely, of unifying the desc_struct, an ongoing
effort, being this the beginning. A lot of old code has to be touched to
accomplish that.
I don't consider this patch ready for inclusion.
2007 Apr 18
3
[RFC, PATCH 10/24] i386 Vmi descriptor changes
Descriptor and trap table cleanups. Add cleanly written accessors for
IDT and GDT gates so the subarch may override them. Note that this
allows the hypervisor to transparently tweak the DPL of the descriptors
as well as the RPL of segments in those descriptors, with no unnecessary
kernel code modification. It also allows the hypervisor implementation
of the VMI to tweak the gates, allowing for
2007 Apr 18
3
[RFC, PATCH 10/24] i386 Vmi descriptor changes
Descriptor and trap table cleanups. Add cleanly written accessors for
IDT and GDT gates so the subarch may override them. Note that this
allows the hypervisor to transparently tweak the DPL of the descriptors
as well as the RPL of segments in those descriptors, with no unnecessary
kernel code modification. It also allows the hypervisor implementation
of the VMI to tweak the gates, allowing for
2007 Apr 18
5
[PATCH] paravirt.h
This version over last version:
(1) Gets rid of the no_paravirt.h header and leaves native ops in place
(with some reshuffling to keep then under one #ifdef).
(2) Fixes the "X crashes with CONFIG_PARAVIRT=y" bug.
(3) Puts __ex_table entry in paravirt iret.
Another followup patch implements binary patching...
Rusty.
===
Create a paravirt.h header for all the critical operations which
2007 Apr 18
5
[PATCH] paravirt.h
This version over last version:
(1) Gets rid of the no_paravirt.h header and leaves native ops in place
(with some reshuffling to keep then under one #ifdef).
(2) Fixes the "X crashes with CONFIG_PARAVIRT=y" bug.
(3) Puts __ex_table entry in paravirt iret.
Another followup patch implements binary patching...
Rusty.
===
Create a paravirt.h header for all the critical operations which
2007 Apr 18
3
[PATCH 1/2] paravirt.h header
OK, this is the revised paravirt.h (Andi has seen this before), then the
second is the binary patching stuff. More things get added to the
paravirt struct in future patches, but this basic stuff hasn't changed
for some time.
====
This patch does the dumbest possible replacement of paravirtualized
instructions: calls through a "paravirt_ops" structure. Currently
these are function
2007 Apr 18
3
[PATCH] abstract out bits of ldt.c
Chris Wright wrote:
>* Zachary Amsden (zach@vmware.com) wrote:
>
>
>>Does Xen assume page aligned descriptor tables? I assume from this
>>
>>
>
>Yes.
>
>
>
>>patch and snippets I have gathered from others, that is a yes, and other
>>things here imply that DT pages are not shadowed. If so, Xen itself
>>must have live segments
2007 Apr 18
3
[PATCH] abstract out bits of ldt.c
Chris Wright wrote:
>* Zachary Amsden (zach@vmware.com) wrote:
>
>
>>Does Xen assume page aligned descriptor tables? I assume from this
>>
>>
>
>Yes.
>
>
>
>>patch and snippets I have gathered from others, that is a yes, and other
>>things here imply that DT pages are not shadowed. If so, Xen itself
>>must have live segments
2007 Apr 18
43
[RFC PATCH 00/35] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths
2007 Apr 18
43
[RFC PATCH 00/35] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths
2007 Apr 18
0
[RFC, PATCH 13/24] i386 Vmi system header
Fairly straightforward code motion in system.h into the sub-arch
layer. Affected functionality include control register accessors,
which are virtualizable but with great overhead due to the #GP
cost; wbinvd, and most importantly, halt and interrupt control,
which is non-virtualizable.
Since read_cr4_safe can never fault on a VMI kernel (P5+ processor
is required for VMI), we can omit the fault
2007 Apr 18
0
[RFC, PATCH 13/24] i386 Vmi system header
Fairly straightforward code motion in system.h into the sub-arch
layer. Affected functionality include control register accessors,
which are virtualizable but with great overhead due to the #GP
cost; wbinvd, and most importantly, halt and interrupt control,
which is non-virtualizable.
Since read_cr4_safe can never fault on a VMI kernel (P5+ processor
is required for VMI), we can omit the fault
2007 Apr 18
33
[RFC PATCH 00/33] Xen i386 paravirtualization support
Unlike full virtualization in which the virtual machine provides
the same platform interface as running natively on the hardware,
paravirtualization requires modification to the guest operating system
to work with the platform interface provided by the hypervisor.
Xen was designed with performance in mind. Calls to the hypervisor
are minimized, batched if necessary, and non-critical codepaths
2007 Apr 18
0
[RFC/PATCH PV_OPS X86_64 07/17] paravirt_ops - descriptor changes.
plain text document attachment (xx-paravirt-desc-header.patch)
Update the descriptors for an interface with paravirt ops
Signed-off-by: Steven Rostedt srostedt@redhat.com
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Index: clean-start/include/asm-x86_64/desc.h
===================================================================
---
2007 Apr 18
0
[RFC/PATCH PV_OPS X86_64 07/17] paravirt_ops - descriptor changes.
plain text document attachment (xx-paravirt-desc-header.patch)
Update the descriptors for an interface with paravirt ops
Signed-off-by: Steven Rostedt srostedt@redhat.com
Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com>
Index: clean-start/include/asm-x86_64/desc.h
===================================================================
---
2005 Aug 12
2
[PATCH] %fs/%gs cleanup in mmu_context.h
Small change to remove difference between Xen and mainline deactivate_mm.
While there, cleanup prepare_arch_switch as well. This generates
identical code.
Signed-off-by: Chris Wright <chrisw@osdl.org>
---
diff -r ba46bd7f5cdf linux-2.6-xen-sparse/include/asm-xen/asm-i386/mmu_context.h
--- a/linux-2.6-xen-sparse/include/asm-xen/asm-i386/mmu_context.h Fri Aug 12 15:59:34 2005
+++
2007 Apr 18
2
[PATCH] x86_64 paravirt_ops port
Hi all,
I've been working on a port of paravirt_ops for the x86_64 architectures
for a couple of days. Here's the result so far. I'm posting it soon for
early cooments. The more, the better.
It's obviously based on the previous work for i386, with the needed
modifications. By now, I'm able to boot a bare metal kernel, but there
are still some known issues, that are in my TODO