Hi all,
I'm not sure that the check is required, though, I think that the
message is noisy. So, I make a proposal that replaces the printk()
by gdprintk(XENLOG_DEBUG, ...). What do you think?
Best regards,
Kan
Fri, 11 Apr 2008 17:21:34 +0900 (JST), KUWAMURA Shin'ya wrote:
Hi,
Running
make kernel paravirtualization friendly by introducing
ia64_set_rr0_to_rr4().
ia64/Xen will replace setting rr[0-4] with single hypercall later.
Signed-off-by: Isaku Yamahata [EMAIL PROTECTED]
---
include/asm-ia64/intrinsics.h |9 +
include/asm-ia64/mmu_context.h |6 +-
2
remove extern declaration of handle_IPI() in irq_ia64.c.
Instead, declare it in asm-ia64/smp.h.
Later handle_IPI() will be referenced from another file.
Signed-off-by: Isaku Yamahata [EMAIL PROTECTED]
---
arch/ia64/kernel/irq_ia64.c |1 -
include/asm-ia64/smp.h |2 ++
2 files
Hi. This patchset is preparation patches for ia64/pv_ops support.
They are almost trivial and mainly make kernel paravirtualization friendly.
thanks,
Diffstat:
arch/ia64/kernel/irq_ia64.c|1 -
include/asm-ia64/intrinsics.h | 11 +++
include/asm-ia64/mmu_context.h |6
__local_irq_save() and local_save_flags() are used to mask interruptions.
They read all psr bits that requres whole bit emulation.
On the other hand, reading only psr.i, the single bit, can be virtualized
cheaply.
Signed-off-by: Isaku Yamahata [EMAIL PROTECTED]
---
include/asm-ia64/intrinsics.h
Hi Jeremy.
Here are the 3 patches for ia64/xen support.
The first one is just to move manage.c under drivers/xen.
This is trivial.
The second and third ones are for compilation fix on ia64.
You may want to postpone those 2 patches to make your merge task
easy as you said before.
thanks,
move arch/x86/xen/manage.c under drivers/xen/to share codes
with x86 and ia64.
ia64/xen also uses manage.c
Signed-off-by: Isaku Yamahata [EMAIL PROTECTED]
---
arch/x86/xen/Makefile |2 +-
drivers/xen/Makefile |2 +-
{arch/x86 = drivers}/xen/manage.c |0
3
Add xen handles realted definitions for xen memory which ia64/xen needs.
Pointer argumsnts for ia64/xen hypercall are passed in pseudo physical
address (guest physical address) so that it is required to convert
guest kernel virtual address into pseudo physical address.
The xen guest handle
fix compilation error of ballon driver on ia64.
extent_start member is pointer argument. On x86 pointer argument for
xen hypercall is passed as virtual address.
On the other hand, ia64 and ppc, pointer argument is passed in pseudo
physical address. (guest physicall address.)
So they must be passed
The pv_ops development branch is switched to
xen-ia64-domu-minimal-2008apr21 which is based
on linux 2.6.25 + ia64 pull + some.
Please make sure your working repository is uptodate.
If you have already patches for the old branch,
you can send ones for the old branch. But it would be applyed to
Make NR_IRQ overridable by each pv instances.
Pv instance may need each own number of irqs so that
NR_IRQS should be the maximum number of nr_irqs each
pv instances need.
This really looks dodgy.
+#ifdef CONFIG_PARAVIRT
+
+/* Determine the maximal NR_IRQ which each pv instances require.
+ *
Isaku == Isaku Yamahata [EMAIL PROTECTED] writes:
Isaku introduce pv_info which describes some randome info about
Isaku underlying execution environment.
Hi Isaku,
I am missing some of the patches in this series for some reason.
However, I'd like to open the discussion and ask why you are
On Tue, Apr 22, 2008 at 05:16:41AM -0400, Jes Sorensen wrote:
Isaku == Isaku Yamahata [EMAIL PROTECTED] writes:
Isaku introduce pv_info which describes some randome info about
Isaku underlying execution environment.
Hi Isaku,
Hi. I'm very glad to get reply.
I am missing some of the
On Tue, Apr 22, 2008 at 05:08:22AM -0400, Jes Sorensen wrote:
Make NR_IRQ overridable by each pv instances.
Pv instance may need each own number of irqs so that
NR_IRQS should be the maximum number of nr_irqs each
pv instances need.
This really looks dodgy.
+#ifdef CONFIG_PARAVIRT
Isaku Yamahata wrote:
Our justification is as follows.
The difference is its scope. pv_ops for virtualization and
machine vector is for platform difference.
- pv_ops does cover the area which shouldn't belong to machine vector.
For example, ia64 intrinsics paravirtualization.
It shouldn't
On Tue, Apr 22, 2008 at 12:37:06PM +0200, Jes Sorensen wrote:
- pv_ops covers some performance critical part (e.g. ia64 intrinsics)
so that in the future they should be optimized with binary patch like
x86.
We had the experimental patch to do that, but they are dropped for
the merge.
Rather than making these binary patches, why not make them fast
syscalls and using a vdso page. Some of the priviledged instructions
are simply reads and we could have that information in a read-only
data page, so there is no need to do a context switch at all. Others
could benefit from a
Dong, Eddie wrote:
Rather than making these binary patches, why not make them fast
syscalls and using a vdso page. Some of the priviledged instructions
are simply reads and we could have that information in a read-only
data page, so there is no need to do a context switch at all. Others
could
Isaku Yamahata wrote:
I'm willing to introduce something like PARAVIRT_NR_IRQS,
but I don't see how PARAVIRT_NR_IRQS solves the issues.
What I want here is to define by cpp
#define PARAVIRT_NR_IRQS\
max(
Jes Sorensen wrote:
Dong, Eddie wrote:
Rather than making these binary patches, why not make them fast
syscalls and using a vdso page. Some of the priviledged instructions
are simply reads and we could have that information in a read-only
data page, so there is no need to do a context switch
Dong, Eddie wrote:
My understanding is that code such as IVT table are well tuned and you
are really
difficult to pursuade people to replace those privilege resource access
instruction
to use vdso or something equalvalent such as mov GRx=CRy. For those C
code
previlige resource access, like
The EFI RID patches require pal.h to (directly or indirectly)
have access to GRANULE_SIZE which is defined in pgtable.h.
This effectively causes a header loop as pgtable.h includes
system.h and system.h includes pal.h. This patch breaks
that loop by not including pal.h in system.h if XEN is
When ia64_do_tlb_purge is called indrectly from play_dead()
GET_VA_VCPU_VHPT_MADDR(r2,r3) does not give the value of the VHPT
pinned into the TLB. I believe that this is because
current is changed between pinning and calling play_dead,
though I am not sure of the exact scemantics.
In any case, by
Macros to be called by PAL, SAL and EFI to switch into
and out of EFI RID.
Cc: Tristan Gingold [EMAIL PROTECTED]
Cc: Isaku Yamahata [EMAIL PROTECTED]
Cc: Alex Williamson [EMAIL PROTECTED]
Cc: Aron Griffis [EMAIL PROTECTED]
Signed-off-by: Simon Horman [EMAIL PROTECTED]
---
Thu, 22 Nov 2007
Hi,
here is another spin of the kexec EFI patches.
This patchset adds repining of the VPD (privregs) in the ITLB which
fixes a bug whereby the hypervisor would lock up when HVM domains
were launched.
Standard Intro:
This series is what I believe to be a fairly complete set of patches to map
This is used by paches that move the EFI runtime regions into what is
normally guest space. A description of why this mapping is made is
included in the patch that makes the mapping.
Cc: Tristan Gingold [EMAIL PROTECTED]
Cc: Isaku Yamahata [EMAIL PROTECTED]
Cc: Alex Williamson [EMAIL PROTECTED]
If an HVM domain has been creaated then VPD (privregs) will
be pinned into the ITLB and thus should be unpinned on kexec.
Cc: Isaku Yamahata [EMAIL PROTECTED]
Cc: Alex Williamson [EMAIL PROTECTED]
Cc: Aron Griffis [EMAIL PROTECTED]
Signed-off-by: Simon Horman [EMAIL PROTECTED]
---
This depends
This is a preliminary patch to allow itentity mapping
of EFI memory to be handled in the asm page fault handlers.
Cc: Isaku Yamahata [EMAIL PROTECTED]
Cc: Tristan Gingold [EMAIL PROTECTED]
Cc: Alex Williamson [EMAIL PROTECTED]
Cc: Aron Griffis [EMAIL PROTECTED]
Signed-off-by: Simon Horman [EMAIL
sal_desc_entry_point() converts physical addresses into virtual
addresses using __va() and these virtual addresses are used
to register the SAL and PAL handlers - which exist in firmware
memory.
As the mapping of firmware memory is being moved from
a PAGE_OFFSET of (0xf 60) to a PAGE_OFFSET of
Cc: Isaku Yamahata [EMAIL PROTECTED]
Cc: Tristan Gingold [EMAIL PROTECTED]
Cc: Alex Williamson [EMAIL PROTECTED]
Cc: Aron Griffis [EMAIL PROTECTED]
Signed-off-by: Simon Horman [EMAIL PROTECTED]
---
Tue, 04 Dec 2007 22:19:26 +0900
* Remove duplicate comment
Thu, 06 Dec 2007 16:09:14 +0900
* rr
A cut down version of set_one_rr (and ia64_new_rr7) for
use when switching to the EFI RID for SAL, PAL and EFI calls.
There seems to be no need to repin: palcode, mapped_regs or vhpt in this
case. If it turns they do need to be repinned then special care needs to
betaken to track the correct
Unpinning shared_info and mapped_regs seems to be missing
from ia64_do_tlb_purge and seems to be needed for kexec.
Like VHPT, the pinned value is recored in a percpu variable
so that the correct value can be unpinned.
Cc: Isaku Yamahata [EMAIL PROTECTED]
Signed-off-by: Simon Horman [EMAIL
Map EFI regions into the same place they are maped into in Linux
This is because of an unfortunate problem with the way that EFI interacts
with Kexec. The call to map the EFI regions may only be made once. This
means that after Kexec the EFI regions must be mapped into the same region
that they
arch.vhpt_page and arch.vhpt_maddr don't exist unless VHPT_ENABLED is defined.
asm-offsets.c: In function `foo':
asm-offsets.c:257: error: structure has no member named `vhpt_page'
asm-offsets.c:259: error: structure has no member named `vhpt_maddr'
Signed-off-by: Simon Horman [EMAIL PROTECTED]
On Tue, Apr 22, 2008 at 02:05:59PM +0200, Jes Sorensen wrote:
Isaku Yamahata wrote:
I'm willing to introduce something like PARAVIRT_NR_IRQS,
but I don't see how PARAVIRT_NR_IRQS solves the issues.
What I want here is to define by cpp
#define PARAVIRT_NR_IRQS
Hi,
When we tested network between domU - dom0 with FTP load tools,
we hitted BUG() in hypervisor. It is always reproducible for a few minutes.
At that time, we got the following message.
vmi15.sky.yk.fujitsu.co.jp login: (XEN) Xen BUG at mm.c:1254
(XEN) FIXME: implement ia64
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