From: Glauber Costa <[EMAIL PROTECTED]>
In situations like pci-passthrough, the ioport registering can
fail, because another device is already present and in charge for
an io address. The current state would crash qemu, but we can propagate
the errors up to the pci layer, avoiding it.
Signed-off-
From: Glauber Costa <[EMAIL PROTECTED]>
Currently, any error in register_ioports make qemu
abort through hw_error(). But there are situations
in which those errors are not fatal. Just return
< 0 instead
Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
---
qemu/vl.c | 12 +++-
1 files c
From: Glauber Costa <[EMAIL PROTECTED]>
map which io registers where already sucessfuly registered
Signed-off-by: Glauber Costa <[EMAIL PROTECTED]>
---
qemu/hw/pci.c |5 +++--
qemu/hw/pci.h |3 +++
2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/qemu/hw/pci.c b/qemu/hw/pci
Hi,
I've got some qemu crashes while trying to passthrough an ide device
to a kvm guest. After some investigation, it turned out that
register_ioport_{read/write} will abort on errors instead of returning
a meaningful error.
However, even if we do return an error, the asynchronous nature of pci
Glauber Costa wrote:
> It makes no sense for the clock initialization to be
> hanging around in setup_32.c when we have a generic kvm guest
> initialization function available. So, we move kvmclock_init()
> inside such a function, leading to a cleaner code.
>
> Signed-off-by: Glauber Costa <[EMAIL
From: Glauber Costa <[EMAIL PROTECTED]>
In situations, like, cpu hotplugging, a cpu can arrive
later on the game and register its paravirt clock
while everything else is already running, which will lead to
breakage, since the time readings will return bogus values.
To prevent this, we write syste
lock driver. A clocksource implementation
+Copyright (C) 2008 Glauber de Oliveira Costa, Red Hat Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 o
I think this version addresses avi's last comments.
I'm not resending userspace since it is unchanged
-
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.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.c | 96
include/asm-x86/kvm_host.h |7 +++
include/asm-x86/kvm_para.h | 25 +++
include/linux/kvm.h|1
4 files changed, 128 inse
we advertise the presence of our paravirt clock
through cpuid, if it is defined in headers
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/qemu-kvm-x86.c |6 +-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/qemu/qemu-kvm-x86.c b/qemu/qemu-kvm
With this, functions such as cpuid can make
use of paravirt definitions
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/qemu-kvm-x86.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/qemu/qemu-kvm-x86.c b/qemu/qemu-kvm-x86.c
index 037abb1..4
-
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___
kvm-devel mailing li
lock driver. A clocksource implementation
+Copyright (C) 2008 Glauber de Oliveira Costa, Red Hat Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 o
.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.c | 95
include/asm-x86/kvm_host.h |7 +++
include/asm-x86/kvm_para.h | 24 +++
include/linux/kvm.h|1
4 files changed, 126 inse
Here's a new version that merges last comments from avi.
Also, it makes it available to x86_64 as well.
Userspace part will follow shortly
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Reposting to kvm-devel, since aliguori notices that I'm relying on
non-upstream features of qemu
-- Forwarded message --
From: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Date: Feb 8, 2008 5:05 AM
Subject: [PATCH] boot a linux kernel from non-ide device
To: [EMAI
Gerd Hoffmann wrote:
>> +struct shared_info shared_info __attribute__((__aligned__(PAGE_SIZE)));
>
> leftover from old version?
>
>> +unsigned long kvm_get_wallclock(void)
>> +{
>> +u32 wc_sec, wc_nsec;
>> +u64 delta, last_tsc;
>> +struct timespec ts;
>> +int version, nsec, cpu =
Anthony Liguori wrote:
> Glauber de Oliveira Costa wrote:
>> This is the host part of kvm clocksource implementation. As it does
>> not include clockevents, it is a fairly simple implementation. We
>> only have to register a per-vcpu area, and start writting to it
>> p
ack
magic that keeps changing its scroll is needed to really put the
processors logically off/on after the notify (acpi code itself will
never call cpu_up/down)
Just let me tell you what you think.
>From c45432c0cec8241dbcd6ed6cf38c953b17a6f826 Mon Sep 17 00:00:00 2001
From: Glauber de Oliv
+/* KVM paravirtual clock driver. A clocksource implementation
+Copyright (C) 2008 Glauber de Oliveira Costa, Red Hat Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Fo
.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.c | 98 +++-
include/asm-x86/kvm_host.h |6 +++
include/asm-x86/kvm_para.h | 24 +++
include/linux/kvm.h|1 +
4 files changed, 128 inse
I think I've misunderstood what you guys wanted to achieve with "xen
compatible", but now I get it. It's something that's kvm specific,
but happens to be able to communicate with xen guests, provided they
do a kvm-aware initialization.
So, here's the two patches for it, using two msrs and non-xe
In this patch, we probe the host checking for clocksource capabilities.
In case it is found, it is advertised to the guest through the appropriate
cpuid mechanism
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/qemu-kvm-x86.c |7 ++-
1 files changed, 6 inse
have qemu-kvm to include kvm_para, allowing access to paravirt definitions
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/qemu-kvm-x86.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/qemu/qemu-kvm-x86.c b/qemu/qemu-kvm-x86.c
index c
userspace, with patches attached.
-
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_
+/* KVM paravirtual clock driver. A clocksource implementation
+Copyright (C) 2008 Glauber de Oliveira Costa, Red Hat Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Fo
.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.c | 79 +++-
include/asm-x86/kvm_host.h |4 ++
include/asm-x86/kvm_para.h | 37
include/linux/kvm.h|1 +
4 files change
The 3 patches should be attached now.
userspace follows
-
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__
kvm_para.h potentially contains definitions that are to be used by
kvm-userspace,
so it should not be included inside the __KERNEL__ block. To protect its own
data structures,
kvm_para.h already includes its own __KERNEL__ block.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTEC
Avi Kivity wrote:
> Glauber de Oliveira Costa wrote:
>> Here's a new version, with some comments addressed.
>> I'm using only one msr instead of two as avi sugested.
>>
>> Reason is that, following another comentary of avi,
>> I'm doing kmap_atomi
Here are the two patches of the userspace part of the series.
First patch is unchanged.
-
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http:/
Here's a new version, with some comments addressed.
I'm using only one msr instead of two as avi sugested.
Reason is that, following another comentary of avi,
I'm doing kmap_atomic's instead of kvm_write. however,
as all the information is part of the same page, both kmaps
end up pointing to the s
Avi Kivity wrote:
> Glauber de Oliveira Costa wrote:
>> have qemu-kvm to include kvm_para, allowing access to paravirt
>> definitions
>>
>> Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
>> ---
>> qemu/qemu-kvm-x86.c |1 +
>
Gerd Hoffmann wrote:
> Hi,
>
>> diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
>> index d083ff5..7728b87 100644
>> --- a/arch/x86/xen/time.c
>> +++ b/arch/x86/xen/time.c
>> -static cycle_t xen_clocksource_read(void);
>> +cycle_t xen_clocksource_read(void);
>
> Huh? You kill the static,
In this patch, we probe the host checking for clocksource capabilities.
In case it is found, it is advertised to the guest through the appropriate
cpuid mechanism
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/qemu-kvm-x86.c |6 +-
1 files changed, 5 inse
have qemu-kvm to include kvm_para, allowing access to paravirt definitions
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/qemu-kvm-x86.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/qemu/qemu-kvm-x86.c b/qemu/qemu-kvm-x86.c
index c
These are pretty straightforward. Just probe the host, and advertise the guest
-
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/kernel/kvmclock.c
@@ -0,0 +1,160 @@
+/* KVM paravirtual clock driver. A clocksource implementation
+Copyright (C) 2007 Glauber de Oliveira Costa, Red Hat Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as
.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
arch/x86/kvm/x86.c | 64 +++-
include/asm-x86/kvm_host.h |5 +++
include/asm-x86/kvm_para.h |5 +++
include/linux/kvm.h|1 +
4 files changed, 74 insertions
kvm_para.h potentially contains definitions that are to be used by
kvm-userspace,
so it should not be included inside the __KERNEL__ block. To protect its own
data structures,
kvm_para.h already includes its own __KERNEL__ block.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTEC
Hi folks,
A lot of time has been elapsed since I last sent a version of kvm clock,
with a lot of things in the middle, including my vacations and a nasty bug
in the clock itself ;-)
Here it is a new version. I'm following avi's last suggestion of using an msr
to make it more migration-proof. If i
Christian Borntraeger wrote:
> Am Mittwoch, 9. Januar 2008 schrieb Glauber de Oliveira Costa:
>> I'm sending a first draft of my proposed cpu hotplug driver for kvm/virtio
>> The first patch is the kernel module, while the second, the userspace pci
> device.
>
> I
Avi Kivity wrote:
> Glauber de Oliveira Costa wrote:
>> I'm sending a first draft of my proposed cpu hotplug driver for
>> kvm/virtio
>> The first patch is the kernel module, while the second, the userspace
>> pci device.
>>
>> The host boots with the
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/Makefile.target |2 +-
qemu/hw/pc.c |4 +-
qemu/hw/pc.h |3 +
qemu/hw/virtio-hotplug.c | 111 ++
qemu/monitor.c | 11 +
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
drivers/virtio/Kconfig |6 +
drivers/virtio/Makefile |1 +
drivers/virtio/virtio_cpu.c | 226 +++
drivers/virtio/virtio_pci.c |1 +
kernel/cpu.c
I'm sending a first draft of my proposed cpu hotplug driver for kvm/virtio
The first patch is the kernel module, while the second, the userspace pci
device.
The host boots with the maximum cpus it should ever use, through the -smp
parameter.
Due to real machine constraints (which qemu copies), i
On Dec 19, 2007 1:41 PM, Avi Kivity <[EMAIL PROTECTED]> wrote:
> Glauber de Oliveira Costa wrote:
> > Changes in rate does not sound good. It's possibly what's screwing up
> > my paravirt clock implementation in smp.
> >
>
> You should renew the time
es.
Now if the vcpu that started running later probes the time first,
we'll se the time going backwards. A constant tsc rate is the only way
around
my limited mind sees around the problem (besides, obviously, _not_
making the system time per-vcpu).
--
Glauber de Oliveira Costa.
"Free as
Dor Laor wrote:
> Glauber de Oliveira Costa wrote:
>>
>> Currently, the -kernel option is not working.
>>
>> Reason is, because we're registering chunks for regions 0-0xa and
>> 0x10-ram_size, the phys_ram_addr + PA is broken.
>> The real fix sh
c - the beginning
of extended memory - makes it work again
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
qemu/hw/pc.c | 11 ---
1 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/qemu/hw/pc.c b/qemu/hw/pc.c
index 6c71b09..e4a5f2d 100644
--- a/q
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Andi Kleen escreveu:
>> The vsmp_64.c file is now compiled unconditionally, according to which
>> me and kiran agreed to. The detection code is always run, but will only
>> trigger when a suitable box is found. Accordingly, the paravirt structs
>> are
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Dong, Eddie escreveu:
>> +static void kvm_write_guest_time(struct kvm_vcpu *vcpu) +{
>> +struct timespec ts;
>> +int r;
>> +
>> +if (!vcpu->clock_gpa)
>> +return;
>> +
>> +/* Updates version to the next odd number, indicatin
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Amit Shah escreveu:
> On Saturday 10 November 2007 00:12:41 Glauber de Oliveira Costa wrote:
>> Hey folks,
>>
>> Here's a new spin of the pvops64 patch series.
>> We didn't get that many comments from the last tim
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Andi Kleen escreveu:
> On Fri, Nov 09, 2007 at 04:43:05PM -0200, Glauber de Oliveira Costa wrote:
>> This patch makes vsmp a paravirt client. It now uses the whole
>> infrastructure provided by pvops. When we detect we're runni
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Avi Kivity escreveu:
> Glauber de Oliveira Costa wrote:
>> This is the host part of kvm clocksource implementation. As it does
>> not include clockevents, it is a fairly simple implementation. We
>> only have to register a per
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Jeremy Fitzhardinge escreveu:
> Glauber de Oliveira Costa wrote:
>> This patch consolidates part of the pieces of smp for both architectures.
>> (i386 and x86_64). It makes part the calls go through smp_ops, and shares
>> code f
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Jeremy Fitzhardinge escreveu:
> Glauber de Oliveira Costa wrote:
>> mm/sparse-vmemmap.c uses init_mm in some places. However, it is not
>> present in any of the headers currently included in the file.
>>
>> init_mm is defin
This patch adds native hooks for debugreg handling functions,
and for the native load_rsp0 function. The later also have its
call sites patched. There's some room for consolidation in the
processor*.h headers, and it is done, for paravirt related functions
Signed-off-by: Glauber de Oliveira
This patch makes vsmp a paravirt client. It now uses the whole
infrastructure provided by pvops. When we detect we're running
a vsmp box, we change the irq-related paravirt operations (and so,
it have to happen quite early), and the patching function
Signed-off-by: Glauber de Oliveira
We need something here because we can't call in and out instructions
directly. However, we have to be careful, because no indirections are
allowed in misc_64.c , and paravirt_ops is a kind of one. So just
call it directly there
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]
With paravirualization, hypervisors needs to handle the gdt,
that was right to this point only used at very early
inialization code. Hypervisors (lguest being the current case)
are commonly modules, so make it an export
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-
to be patched. We
also patch call sites that now needs a typecast.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
include/asm-x86/desc.h | 59 +++
This patch turns the page operations (set and make a page table)
into native_ versions. The operations itself will be later
overriden by paravirt.
It uses unsigned long long for consistency with 32-bit. So we
have to fix fault_64.c to get rid of warnings.
Signed-off-by: Glauber de Oliveira Costa
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/kernel/e820_64.c |9 +++--
arch/x86/kernel/setup_64.c | 28 +++-
inclu
by i386. Paravirt guests can set a function to do their own
initialization this way.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/kerne
under paravirt, read cr2 cannot be issued directly anymore.
So wrap it in a macro, defined to the operation itself in case
paravirt is off, but to something else if we have paravirt
in the game
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt &
are moved to below the #ifdef CONFIG_PARAVIRT
site, as they are users of the newly defined set_* macros.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
include/as
ff-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/kernel/Makefile_32|2 +-
arch/x86/kernel/Makefile_64|2 +-
arch/x86/kerne
This patch goes one step forward in consolidating the msr.h header.
It shares code between i386 and x86_64, instead of duplicating the
code for tsc reading, msr reading/writing, etc.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL
When paravirtualization is disabled, the kernel is always
running at ring 0. So report it in the appropriate macro
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
--
Export math_state_restore symbol, so it can be used for hypervisors.
They are commonly loaded as modules (lguest being an example).
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[
The cli and sti instructions need to be replaced by paravirt hooks.
For the i386 architecture, this is already done. The code requirements
aren't much different from x86_64 POV, so this part is consolidated in
the common header
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]
This patch introduces, and patch callers when needed, native
versions for read/write_crX functions, clts and wbinvd.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
This patch consolidates system.h header. For i386, it adds functions
read/write_cr8 that ain't really needed, but will also not hurt. If they are
used somewhere in i386 code, there's a bug anyway, and should be fixed.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]&g
: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/kernel/i8259_64.c |7 +--
include/asm-x86/irq_64.h |3 +++
2 files changed, 8 insertions(+), 2 deletion
4 box without
-traditional.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/kernel/Makefile_64 |1 -
1 files changed, 0 insertions(+), 1 deletions(-)
diff
Those are the hooks needed for paravirt at entry_64.S
In general, they follow the way of i386.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/kernel
This patch consolidates part of the tlb handling functions for the x86
architecture. In this approach, we start by the parts actually used for
paravirt in i386.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acke
pmd_populate_kernel() are usually macros that expand to
simpler variants that does not use the first parameter at all.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
m
Hey folks,
Here's a new spin of the pvops64 patch series.
We didn't get that many comments from the last time,
so it should be probably almost ready to get in. Heya!
>From the last version, the most notable changes are:
* consolidation of system.h, merging jeremy's comments about ordering
conce
, irq_enable_sysexit, has a very specific i386 naming,
and its name is then changed to a more general one.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/ker
This is the host part of kvm clocksource implementation. As it does
not include clockevents, it is a fairly simple implementation. We
only have to register a per-vcpu area, and start writting to it periodically.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
drive
@@ -0,0 +1,171 @@
+/* KVM paravirtual clock driver. A clocksource implementation
+Copyright (C) 2007 Glauber de Oliveira Costa, Red Hat Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+th
This patch introduces the include files for kvm clock.
They'll be needed for both guest and host part.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
include/asm-x86/kvm_para.h | 25 +
include/linux/kvm.h|1 +
include/linux
Hi folks,
Here's a new spin of the clocksource implementation.
In this new version:
* followed avi's suggestion of:
- letting the cpu itself register its memory area.
- using a gfn instead of a phys addr as a parameter, to be sure we can
cover the whole memory area
- write guest time at
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Avi Kivity escreveu:
> Glauber de Oliveira Costa wrote:
>> This is the host part of kvm clocksource implementation. As it does
>> not include clockevents, it is a fairly simple implementation. We
>> only have to register a per
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Akio Takebe escreveu:
> Hi, Glauber
>
> This is interesting facility. :-)
>
>> +#define KVM_HCALL_REGISTER_CLOCK1
>> +
>> +union kvm_hv_clock {
>> +struct {
>> +u64 tsc_mult;
>> +u64 now_ns;
>> +/* That's t
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Jeremy Fitzhardinge escreveu:
> Avi Kivity wrote:
>> Glauber de Oliveira Costa wrote:
>>
>>>> +union kvm_hv_clock {
>>>> + struct {
>>>> + u64 tsc_mult;
>>>> +
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Jeremy Fitzhardinge escreveu:
> Glauber de Oliveira Costa wrote:
>> This patch introduces the include files for kvm clock.
>> They'll be needed for both guest and host part.
>>
>> Signed-off-by: Glauber de
On 11/6/07, Glauber de Oliveira Costa <[EMAIL PROTECTED]> wrote:
> This patch introduces the include files for kvm clock.
> They'll be needed for both guest and host part.
And of course, this was my test files by mistake ;-)
Oh god... ;-)
Patches aren't numbered but this on
+/* KVM paravirtual clock driver. A clocksource implementation
+Copyright (C) 2007 Glauber de Oliveira Costa, Red Hat Inc.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software
This patch introduces the include files for kvm clock.
They'll be needed for both guest and host part.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
include/asm-x86/kvm_para.h | 23 +++
include/linux/kvm.h|1 +
include/linux
This is the host part of kvm clocksource implementation. As it does
not include clockevents, it is a fairly simple implementation. We
only have to register a per-vcpu area, and start writting to it periodically.
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
---
drivers/kvm
This is a new version of kvm paravirt clock implementation
This time, the clockevents part was completely wiped out.
Not that I'm dropping it: As said in my last message, I'm starting
to take the path of having a specialized irq chip, as for avi-san's
suggestion.
However, last iteration made cloc
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Keir Fraser escreveu:
> On 1/11/07 15:30, "Jeremy Fitzhardinge" <[EMAIL PROTECTED]> wrote:
>
>> Glauber de Oliveira Costa wrote:
>>> I in fact have seen bugs with mixed reads and writes to the same cr,
>>&
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Jeremy Fitzhardinge escreveu:
> Glauber de Oliveira Costa wrote:
>> under paravirt, read cr2 cannot be issued directly anymore.
>> So wrap it in a macro, defined to the operation itself in case
>> paravirt is off, but to some
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Jeremy Fitzhardinge escreveu:
> Glauber de Oliveira Costa wrote:
>> This patch introduces, and patch callers when needed, native
>> versions for read/write_crX functions, clts and wbinvd.
>>
>> Signed-off-by: Glaube
This patch makes vsmp a paravirt client. It now uses the whole
infrastructure provided by pvops. When we detect we're running
a vsmp box, we change the irq-related paravirt operations (and so,
it have to happen quite early), and the patching function
Signed-off-by: Glauber de Oliveira
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]>
Signed-off-by: Steven Rostedt <[EMAIL PROTECTED]>
Acked-by: Jeremy Fitzhardinge <[EMAIL PROTECTED]>
---
arch/x86/kernel/e820_64.c |9 +++--
arch/x86/kernel/setup_64.c | 28 +++-
inclu
We need something here because we can't call in and out instructions
directly. However, we have to be careful, because no indirections are
allowed in misc_64.c , and paravirt_ops is a kind of one. So just
call it directly there
Signed-off-by: Glauber de Oliveira Costa <[EMAIL PROTECTED]
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