On 22.03.2010, at 10:15, Dor Laor wrote:
On 03/21/2010 01:29 PM, Thomas Løcke wrote:
Hey,
What is considered best practice when running a KVM host with a
mixture of Linux and Windows guests?
Currently I have ntpd running on the host, and I start my guests using
-rtc
something breaks. Also give the user a hint on why the VCPU_CREATE might have
failed.
This fixes a segmentation fault with -smp VCPU_MAX in the host kernel.
Signed-off-by: Alexander Graf ag...@suse.de
Reported-by: Michael Tokarev m...@tls.msk.ru
---
Please also commit this to the -stable branch
On 22.03.2010, at 12:14, Ingo Molnar wrote:
* Avi Kivity a...@redhat.com wrote:
On 03/21/2010 11:54 PM, Ingo Molnar wrote:
* Avi Kivitya...@redhat.com wrote:
On 03/21/2010 10:55 PM, Ingo Molnar wrote:
Of course you could say the following:
' Thanks, I'll mark this for v2.6.36
On 10.02.2010, at 13:21, Gleb Natapov wrote:
X86 emulator fails to do permission/correctness checking like
real CPU does for some instruction. This patch series fixes some
of those discrepancies.
Changelog:
v1-v2
- move IOPL permission checking functions into emulate.c
- rename them
On 22.03.2010, at 16:48, Alexander Graf wrote:
On 10.02.2010, at 13:21, Gleb Natapov wrote:
X86 emulator fails to do permission/correctness checking like
real CPU does for some instruction. This patch series fixes some
of those discrepancies.
Changelog:
v1-v2
- move IOPL permission
On 22.03.2010, at 20:31, Daniel P. Berrange wrote:
On Mon, Mar 22, 2010 at 02:15:35PM -0500, Anthony Liguori wrote:
On 03/22/2010 12:55 PM, Avi Kivity wrote:
Lets look at the ${HOME}/.qemu/qmp/ enumeration method suggested by
Anthony.
There's numerous ways that this can break:
I don't
On 22.03.2010, at 20:54, Ingo Molnar wrote:
* Alexander Graf ag...@suse.de wrote:
Yes. I think the point was that every layer in between brings potential
slowdown and loss of features.
Exactly. The more 'fragmented' a project is into sub-projects, without a
single, unified
On 23.03.2010, at 09:58, Avi Kivity wrote:
On 03/23/2010 10:33 AM, Xu, Dongxiao wrote:
Did you measure workloads that exit to userspace very often?
Also, what about future processors? My understanding is that the
manual recommends keeping things cached, the above description is for
On 24.03.2010, at 10:32, Avi Kivity wrote:
On 03/22/2010 12:49 PM, Alexander Graf wrote:
When we fail to create a VCPU we have no way to tell our callers that
something
failed. So the caller happily uses a completely broken state.
This code should become deprecated in the process
Avi Kivity wrote:
On 03/24/2010 02:50 PM, Joerg Roedel wrote:
You can always provide the kernel and module paths as command line
parameters. It just won't be transparently usable, but if you're using
qemu from the command line, presumably you can live with that.
I don't want the tool
Marcelo Tosatti wrote:
On Wed, Jan 20, 2010 at 11:58:48AM +0100, Gerd Hoffmann wrote:
Nowdays (qemu 0.12) seabios loads option roms from pci rom bars. So
there is no need any more to scan for option roms and have qemu load
them. Zap the code.
Signed-off-by: Gerd Hoffmann
Avi Kivity wrote:
On 03/24/2010 03:53 PM, Alexander Graf wrote:
Someone needs to know about the new guest to fetch its symbols. Or do
you want that part in the kernel too?
How about we add a virtio guest file system access device? The guest
would then expose its own file system
DSISR is only defined as 32 bits wide. So let's reflect that in the
structs too.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s.h |2 +-
arch/powerpc/include/asm/kvm_host.h |2 +-
arch/powerpc/kvm/book3s_64_interrupts.S |2 +-
3 files
The current check_ext function reads the instruction and then does
the checking. Let's split the reading out so we can reuse it for
different functions.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c | 24
1 files changed, 16 insertions(+), 8
-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index d6105d9..7912d72 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
up dcbz emulation by an order of magnitude by using kmap.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c| 56 +
arch/powerpc/kvm/book3s_64_emulate.c | 19 +--
2 files changed, 37 insertions(+), 38 deletions(-)
diff
Bool defaults to at least byte width. We usually only want to waste a single
bit on this. So let's move all the bool values to bitfields, potentially
saving memory.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s.h | 28 ++--
arch
-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_mmu_host.c |7 +++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c
b/arch/powerpc/kvm/book3s_64_mmu_host.c
index 25bd4ed..a01e9c5 100644
--- a/arch/powerpc/kvm
Cell can't handle MSR_FE0 and MSR_FE1 too well. It gets dog slow.
So let's just override the guest whenever we see one of the two and mask them
out. See commit ddf5f75a16b3e7460ffee881795aa168dffcd0cf for reference.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c |4
Mac OS X uses the dcba instruction. According to the specification it doesn't
guarantee any functionality, so let's just emulate it as nop.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_emulate.c |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff
MOL uses its own hypercall interface to call back into userspace when
the guest wants to do something.
So let's implement that as an exit reason, specify it with a CAP and
only really use it when userspace wants us to.
The only user of it so far is MOL.
Signed-off-by: Alexander Graf ag
for this purpose. That way features we don't want in all guests or
userspace configurations can just not be enabled and we're good.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- Add flags to enable_cap
- Update documentation for kvm_enable_cap
v2 - v3:
- Add CAP for ENABLE_CAP
- Improve
BATs can't only be written to, you can also read them out!
So let's implement emulation for reading BAT values again.
While at it, I also made BAT setting flush the segment cache,
so we're absolutely sure there's no MMU state left when writing
BATs.
Signed-off-by: Alexander Graf ag...@suse.de
We have a 32 bit value in the PACA to store XER in. We also do an stw
when storing XER in there. But then we load it with ld, completely
screwing it up on every entry.
Welcome to the Big Endian world.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_slb.S |2 +-
1
This patch makes the VSID of mapped pages always reflecting all special cases
we have, like split mode.
It also changes the tlbie mask to 0x0000 according to the spec. The mask
we used before was incorrect.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm
Some constants were bigger than ints. Let's mark them as such so we don't
accidently truncate them.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s.h | 12 ++--
1 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/include/asm
When trying to read or store vcpu register data, we should also make
sure the vcpu is actually loaded, so we're 100% sure we get the correct
values.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c |8
1 files changed, 8 insertions(+), 0 deletions(-)
diff
), the 970 declares this as an optional feature. So we need
to reconstruct DSISR and DAR manually.
Signed-off-by: Alexander Graf ag...@suse.de
---
v2 - v3:
- add emulation for stfs, stfd, lfd
- add DAR emulation
---
arch/powerpc/include/asm/kvm_book3s.h |2 +
arch/powerpc/kvm/book3s.c
for Cell hosts (PS3 speedup)
Alexander Graf (21):
KVM: PPC: Ensure split mode works
KVM: PPC: Allow userspace to unset the IRQ line
KVM: PPC: Make DSISR 32 bits wide
KVM: PPC: Book3S_32 guest MMU fixes
KVM: PPC: Split instruction reading out
KVM: PPC: Don't reload FPU with invalid values
Userspace can tell us that it wants to trigger an interrupt. But
so far it can't tell us that it wants to stop triggering one.
So let's interpret the parameter to the ioctl that we have anyways
to tell us if we want to raise or lower the interrupt line.
Signed-off-by: Alexander Graf ag
supposed to.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s.h |9 +++---
arch/powerpc/kvm/book3s.c | 46 +---
2 files changed, 29 insertions(+), 26 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_book3s.h
b
We emulate the mfsrin instruction already, that passes the SR number
in a register value. But we lacked support for mfsr that encoded the
SR number in the opcode.
So let's implement it.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_emulate.c | 13 +
1
We get MMIOs with the weirdest instructions. But every time we do,
we need to improve our emulator to implement them.
So let's do that - this time it's lbzux and lhax's round.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/emulate.c | 20
1 files changed
is enabled already and if so just doesn't
bother activating it, making FPU operations survive guest context switches.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c |5 +
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/book3s.c b/arch
Am 25.03.2010 um 11:31 schrieb Avi Kivity a...@redhat.com:
+It is recommended to use this API instead of the
KVM_SET_MEMORY_REGION ioctl.
Why? What's wrong with SET_MEM_REGION?
Alex
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Am 25.03.2010 um 12:49 schrieb Avi Kivity a...@redhat.com:
On 03/25/2010 01:10 PM, Alexander Graf wrote:
Am 25.03.2010 um 11:31 schrieb Avi Kivity a...@redhat.com:
+It is recommended to use this API instead of the
KVM_SET_MEMORY_REGION ioctl.
Why? What's wrong with SET_MEM_REGION
Am 25.03.2010 um 22:04 schrieb Avi Kivity a...@redhat.com:
On 03/25/2010 06:54 PM, Dale Farnsworth wrote:
I'm beginning to look at implementing KVM on MIPS. I've tried to
search
for any work-in-progress on this but haven't found much at all.
Google comes up with some hits, but nothing
On 26.03.2010, at 08:15, Bruce Majia wrote:
On Sun, Jan 17, 2010 at 03:06:11PM +0200, Avi Kivity wrote:
On 01/10/2010 07:01 PM, Alexander Graf wrote:
While trying to compile an E500 vmlinux, I stumbled across a compilation bug
that was obviously there before I touched any of the code
makes compiler to distinguish warnings as
errors. So un-initialised variables should be eliminated to avoid build
errors.
Signed-off-by: Bruce Majia bruce.ma...@gmail.com
Acked-by: Alexander Graf ag...@suse.de
Please also queue for 2.6.34.
Alex
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On 27.03.2010, at 08:38, Nitin Gupta wrote:
Hi,
I will be applying to GSoC 2010 under The Linux Foundation as mentoring
organization (Virtualization working group). Below is the application for my
planned project: Memory Compression for Virtualized Environments
(according to LF template).
On 27.03.2010, at 17:42, Pekka Enberg wrote:
Hi Alexander,
Alexander Graf wrote:
I'm continuing my journey through the KVM API documentation and I'm now
scratching my head on how interrupts, traps, and exceptions are supported
by the API. I see KVM_CREATE_IRQCHIP and KVM_IRQ_LINE
Am 29.03.2010 um 18:46 schrieb Chris Wright chr...@sous-sol.org:
* Hannes Reinecke (h...@suse.de) wrote:
Ah. So I'll have to shout at Alex Graf.
No problems there :-)
I like that, when in doubt, shout at Alex ;-)
Yep, whenever in doubt, just shout at me :).
Alex
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To unsubscribe
On 29.03.2010, at 19:23, Kenni Lund wrote:
2010/1/9 Alexander Graf ag...@suse.de:
On 09.01.2010, at 03:45, Ryan C. Underwood wrote:
I have a multifunction PCI device that I'd like to pass through to KVM.
In order to do that, I'm reading that the PCI memory region must be
4K-page
On 30.03.2010, at 01:00, Kenni Lund wrote:
2010/3/29 Alexander Graf ag...@suse.de:
On 29.03.2010, at 19:23, Kenni Lund wrote:
2010/1/9 Alexander Graf ag...@suse.de:
On 09.01.2010, at 03:45, Ryan C. Underwood wrote:
I have a multifunction PCI device that I'd like to pass through
On 31.03.2010, at 00:27, Kenni Lund wrote:
2010/3/30 Chris Wright chr...@redhat.com:
* Kenni Lund (ke...@kelu.dk) wrote:
Client dmesg: http://pastebin.com/uNG4QK5j
Host dmesg: http://pastebin.com/jZu3WKZW
I just verified it and I do get the call trace in the host (which
disables IRQ 19,
: Alexander Graf ag...@suse.de
Date: Thu Dec 17 16:04:44 2009 +0100
commit be5a9efb3359cac07217d477b44f6bd0e17658f0
Author: Michael S. Tsirkin m...@redhat.com
Date: Wed Dec 23 12:07:47 2009 +0200
While at it, I realized that the friendly help output if a device is currently
in use by a driver
Kenni Lund wrote:
2010/3/31 Kenni Lund ke...@kelu.dk:
Booting the guest and tuning to a DVB-T channel _works_ !!! :-D Thanks
a lot for your help...I have one more question, though: If I have two
devices (like the ivtv tuner and the USB card) and they share an IRQ,
if I then assign BOTH of
Chris Wright wrote:
* Alexander Graf (ag...@suse.de) wrote:
Kenni Lund wrote:
2010/3/31 Kenni Lund ke...@kelu.dk:
Booting the guest and tuning to a DVB-T channel _works_ !!! :-D Thanks
a lot for your help...I have one more question, though: If I have two
devices (like
On 01.04.2010, at 10:51, Avi Kivity wrote:
On 03/24/2010 10:48 PM, Alexander Graf wrote:
Some times we don't want all capabilities to be available to all
our vcpus. One example for that is the OSI interface, implemented
in the next patch.
In order to have a generic mechanism in how
BookE KVM doesn't know about QPRs, so let's not try to access then.
This fixes a build error on BookE KVM.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/powerpc.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/powerpc.c b/arch
Book3S knows how to convert floats to doubles and vice versa. BookE doesn't.
So let's make sure we don't export them on BookE.
This fixes a link error on BookE with CONFIG_KVM=y.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/ppc_ksyms.c |2 ++
1 files changed, 2
Avi Kivity wrote:
I get this on a 32-bit build test:
arch/powerpc/kvm/powerpc.c: In function 'kvmppc_complete_mmio_load':
arch/powerpc/kvm/powerpc.c:338: error: 'struct kvm_vcpu_arch' has no
member named 'qpr'
arch/powerpc/kvm/powerpc.c:342: error: 'struct kvm_vcpu_arch' has no
member named
On 05.04.2010, at 21:37, Luiz Capitulino wrote:
On Mon, 5 Apr 2010 20:34:26 +0200
Mohammed Gamal m.gamal...@gmail.com wrote:
Hello All,
I'm interested in adding nested VMX support to KVM in GSoC 2010 (among
other things). I see that Orit Wasserman has done some work in this
area, but it
Chris Wright wrote:
Please send in any agenda items you are interested in covering.
Management stack discussion (again :))
Alex
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Commit a0abee86af2d1f048dbe99d2bcc4a2cefe685617 introduced unsetting of the
IRQ line from userspace. This added a new core specific callback that I
apparently forgot to add for BookE.
So let's add the callback for BookE as well, making it build again.
Signed-off-by: Alexander Graf ag...@suse.de
On 11.04.2010, at 23:07, Andre Przywara wrote:
On SVM we set the instruction length of skipped instructions
to hard-coded, well known values, which could be wrong when (bogus,
but valid) prefixes (REX, segment override) are used.
Newer AMD processors (Fam10h 45nm and better, aka. PhenomII or
On 11.04.2010, at 23:40, Alexander Graf wrote:
/* Either adds offset n to the instruction counter or takes the next
instruction pointer from the vmcb if the CPU supports it */
static u64 svm_next_rip(struct kvm_vcpu *vcpu, int add)
{
if (svm-vmcb-control.next_rip != 0
On 11.04.2010, at 23:51, Andre Przywara wrote:
Alexander Graf wrote:
On 11.04.2010, at 23:40, Alexander Graf wrote:
/* Either adds offset n to the instruction counter or takes the next
instruction pointer from the vmcb if the CPU supports it */
static u64 svm_next_rip(struct kvm_vcpu
On 12.04.2010, at 00:13, Andre Przywara wrote:
Alexander Graf wrote:
On 11.04.2010, at 23:51, Andre Przywara wrote:
Alexander Graf wrote:
On 11.04.2010, at 23:40, Alexander Graf wrote:
/* Either adds offset n to the instruction counter or takes the next
instruction pointer from the vmcb
On 12.04.2010, at 10:15, Mohammed Gamal wrote:
On Mon, Apr 12, 2010 at 12:29 AM, Jamie Lokier ja...@shareable.org wrote:
Javier Guerra Giraldez wrote:
On Sat, Apr 10, 2010 at 7:42 AM, Mohammed Gamal m.gamal...@gmail.com
wrote:
On Sat, Apr 10, 2010 at 2:12 PM, Jamie Lokier
On 12.04.2010, at 12:20, Avi Kivity wrote:
On 04/12/2010 12:07 AM, Andre Przywara wrote:
On SVM we set the instruction length of skipped instructions
to hard-coded, well known values, which could be wrong when (bogus,
but valid) prefixes (REX, segment override) are used.
Newer AMD
On 12.04.2010, at 12:35, Takuya Yoshikawa wrote:
This patch fixes a bug found by Avi during the review process
of my dirty bitmap related work.
To ppc and ia64 people:
The fix is really simple but touches all architectures using
dirty bitmaps. So please check this will not suffer your
On 12.04.2010, at 14:04, Jamie Lokier wrote:
Alexander Graf wrote:
Also since -net user does support samba exporting already,
This I'm interested in. Last time I tried to use it, the smb=
option didn't work because Samba refused to run when launched with
qemu's mini config file
haven't tried yet.
As far as the path I took goes, I tried to merge as much functionality and code
as possible with the 64 bit host support. So whenever code was reusable, it gets
reused.
Alexander Graf (27):
KVM: PPC: Name generic 64-bit code generic
KVM: PPC: Add host MMU Support
KVM: PPC
over.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s_asm.h |4 ++--
arch/powerpc/include/asm/paca.h |2 +-
arch/powerpc/kvm/Kconfig |4
arch/powerpc/kvm/Makefile |2 +-
4 files changed, 8 insertions
Our shadow MMU code needs to know where the HTAB is located and how
big it is. So we need some variables from the kernel exported to
module space if KVM is built as a module.
CC: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel
We have a define on what the highest bit of IRQ priorities is. So we can
just as well use it in the bit checking code and avoid invalid IRQ values
to be triggered.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c |2 +-
1 files changed, 1 insertions(+), 1 deletions
Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/head_32.S | 14 ++
1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index e025e89..98c4b29 100644
We need the SWITCH_FRAME_SIZE define on Book3S_32 now too.
So let's export it unconditionally.
CC: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/asm-offsets.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff
-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c | 23 +++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index b917b97..178ddd4 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm
We need to reserve a context from KVM to make sure we have our own
segment space. While we did that split for Book3S_64 already, 32 bit
is still outstanding.
So let's split it now.
Signed-off-by: Alexander Graf ag...@suse.de
CC: Benjamin Herrenschmidt b...@kernel.crashing.org
---
arch/powerpc
-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_32_sr.S | 143 +++
1 files changed, 143 insertions(+), 0 deletions(-)
create mode 100644 arch/powerpc/kvm/book3s_32_sr.S
diff --git a/arch/powerpc/kvm/book3s_32_sr.S b/arch/powerpc/kvm/book3s_32_sr.S
if necessary, to speed up that path.
The new thing about this file is that it makes use of generic long load
and store functions and calls a macro to fill in the actual segment
switching code. That still needs to be done differently for book3s_32 and
book3s_64.
Signed-off-by: Alexander Graf ag...@suse.de
For assembly code there are several long load and store defines already.
The one that's missing is the typical stack store, stdu/stwu.
So let's add that define as well, making my KVM code happy.
CC: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Alexander Graf ag...@suse.de
Now that we have all the bits and pieces in place, let's enable building
of the Book3S_32 target.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/Kconfig | 18 ++
arch/powerpc/kvm/Makefile | 12
2 files changed, 30 insertions(+), 0 deletions
When we mapped a page as read-only, we can just release it as clean to
KVM's page claim mechanisms, because we're pretty sure it hasn't been
touched.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_mmu_host.c |6 +-
1 files changed, 5 insertions(+), 1 deletions
-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/processor.h |3 +++
arch/powerpc/kernel/asm-offsets.c|3 +++
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/processor.h
b/arch/powerpc/include/asm/processor.h
index 221ba62..7492fe8
of the now in the svcpu struct fields to
inline function calls. While at it, it also moves the definition of those
inline function calls to respective header files for booke and book3s,
greatly improving readability.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s.h
.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c| 26 +-
arch/powerpc/kvm/book3s_32_mmu.c |3 +++
arch/powerpc/kvm/book3s_emulate.c|4
arch/powerpc/kvm/book3s_rmhandlers.S |4 ++--
4 files changed, 34
Since we now have several fields in the shadow VCPU, we also change
the internal calling convention between the different entry/exit code
layers.
Let's reflect that in the IR=1 code and make sure we use long defines
for long field access.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch
When instruction fetch failed, the inline function hook automatically
detects that and starts the internal guest memory load function. So
whenever we access kvmppc_get_last_inst(), we're sure the result is sane.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/emulate.c |4
Upstream recently added a new name for PPC64: Book3S_64.
So instead of using CONFIG_PPC64 we should use CONFIG_PPC_BOOK3S consotently.
That makes understanding the code easier (I hope).
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_host.h |8
arch
In analogy to the 64 bit specific header file, this is the 32 bit
pendant. With this in place we can just always call to_svcpu and
be assured we get the right pointer anywhere.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s_32.h | 42
for a subarch specific header file.
Here we can put anything that needs to be different between those two.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s_64.h | 28
1 files changed, 28 insertions(+), 0 deletions(-)
create mode 100644
will remove the originals from the vcpu and paca.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s_asm.h | 21 +
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h
b/arch/powerpc
We just introduced generic segment switching code that only needs to call
small macros to do the actual switching, but keeps most of the entry / exit
code generic.
So let's move the SLB switching code over to use this new mechanism.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc
-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_rmhandlers.S | 119 +-
1 files changed, 88 insertions(+), 31 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S
b/arch/powerpc/kvm/book3s_rmhandlers.S
index bd08535..0c8d331 100644
--- a/arch/powerpc
The shadow vcpu now contains some fields we don't use from the vcpu anymore.
Access to them happens using inline functions that happily use the shadow
vcpu fields.
So let's now ifdef them out to booke only and add asm-offsets.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include
The host shadow mmu code needs to get initialized. It needs to fetch a
segment it can use to put shadow PTEs into.
That initialization code was in generic code, which is icky. Let's move
it over to the respective MMU file.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm
In order to support 32 bit Book3S, we need to add code to enable our
shadow MMU to actually add shadow PTEs. This is the module enabling
that support.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_32_mmu_host.c | 480 +
1 files changed
There are quite some pieces in the code that I overlooked that still use
u64s instead of longs. This has two side effects:
1) Slowness
2) Breakage
This patch fixes both, enabling me to successfully run a Debian guest
on a G4 iBook in KVM.
Signed-off-by: Alexander Graf ag...@suse.de
On 16.04.2010, at 08:47, Benjamin Herrenschmidt wrote:
On Fri, 2010-04-16 at 00:11 +0200, Alexander Graf wrote:
Our shadow MMU code needs to know where the HTAB is located and how
big it is. So we need some variables from the kernel exported to
module space if KVM is built as a module
On 16.04.2010, at 11:22, Benjamin Herrenschmidt wrote:
On Fri, 2010-04-16 at 11:07 +0200, Alexander Graf wrote:
On 16.04.2010, at 08:47, Benjamin Herrenschmidt wrote:
On Fri, 2010-04-16 at 00:11 +0200, Alexander Graf wrote:
Our shadow MMU code needs to know where the HTAB is located
On 16.04.2010, at 11:25, Alexander Graf wrote:
On 16.04.2010, at 11:22, Benjamin Herrenschmidt wrote:
On Fri, 2010-04-16 at 11:07 +0200, Alexander Graf wrote:
On 16.04.2010, at 08:47, Benjamin Herrenschmidt wrote:
On Fri, 2010-04-16 at 00:11 +0200, Alexander Graf wrote:
Our shadow MMU
On 16.04.2010, at 11:31, Alexander Graf wrote:
On 16.04.2010, at 11:25, Alexander Graf wrote:
On 16.04.2010, at 11:22, Benjamin Herrenschmidt wrote:
Well, I did look into reusing the existing functions for HTAB modification,
but they're incredibly tightly coupled to Linux PTEs
On 16.04.2010, at 01:00, Alexander Graf wrote:
There are quite some pieces in the code that I overlooked that still use
u64s instead of longs. This has two side effects:
1) Slowness
2) Breakage
This patch fixes both, enabling me to successfully run a Debian guest
on a G4 iBook in KVM
running.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c|3 +++
arch/powerpc/kvm/book3s_interrupts.S |2 ++
2 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index a7de709..a03163b 100644
In the process of merging Book3S_32 and 64 I somehow ended up having the
alignment interrupt handler take last_inst, but the fetching code not
fetching it. So we ended up with stale last_inst values.
Let's just enable last_inst fetching for alignment interrupts too.
Signed-off-by: Alexander Graf
Book3S_64 didn't set VSID_PR when we're in PR=1. This lead to pretty bad
behavior when searching for the shadow segment, as part of the code relied
on VSID_PR being set.
This patch fixes booting Book3S_64 guests.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_mmu.c
. Ignore the
two patches in between.
Alexander Graf (8):
KVM: PPC: Convert u64 - ulong
KVM: PPC: Make Performance Counters work
KVM: PPC: Improve split mode
KVM: PPC: Make Alignment interrupts work again
KVM: PPC: Be more informative on BUG
KVM: PPC: Set VSID_PR also for Book3S_64
KVM
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