Am 27.06.2010 um 13:53 schrieb Avi Kivity a...@redhat.com:
On 06/27/2010 02:49 PM, Alexander Graf wrote:
Am 27.06.2010 um 12:59 schrieb Avi Kivity a...@redhat.com:
On 06/27/2010 01:33 PM, Alexander Graf wrote:
Or inc/dec...
Uh - huh? How would that help?
inc shared-critical
On 28.06.2010, at 09:18, Milton Miller wrote:
On Sun Jun 27 around 19:33:52 EST 2010 Alexander Graf wrote:
Am 27.06.2010 um 10:14 schrieb Avi Kivity avi at redhat.com:
On 06/26/2010 02:25 AM, Alexander Graf wrote:
+
+PPC hypercalls
+==
+
+The only viable ways to reliably
On 28.06.2010, at 10:13, Avi Kivity wrote:
On 06/28/2010 10:49 AM, Alexander Graf wrote:
I don't believe we support the kernel actually doing a syscall to itself
anymore, at least on powerpc. The callers call the underlying system
call function, or kernel_thread.
That said, I would
On 28.06.2010, at 10:28, Avi Kivity wrote:
On 06/26/2010 02:16 AM, Alexander Graf wrote:
Currently the shadow paging code keeps an array of entries it knows about.
Whenever the guest invalidates an entry, we loop through that entry,
trying to invalidate matching parts.
While
Avi Kivity wrote:
On 06/28/2010 12:27 PM, Alexander Graf wrote:
Am I looking at old code?
Apparently. Check book3s_mmu_*.c
I don't have that pattern.
It's in this patch.
+static void invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
+{
+ dprintk_mmu(KVM: Flushing SPT
Avi Kivity wrote:
On 06/28/2010 12:55 PM, Alexander Graf wrote:
Avi Kivity wrote:
On 06/28/2010 12:27 PM, Alexander Graf wrote:
Am I looking at old code?
Apparently. Check book3s_mmu_*.c
I don't have that pattern.
It's in this patch.
Yes. Silly
On 29.06.2010, at 09:32, Segher Boessenkool wrote:
On PowerPC it's very normal to not support all of the physical RAM in real
mode.
Oh? Are you referring to real mode limit, or 32-bit implementations with
more than 32 address lines, or something else?
The former.
Okay. In that
On 29.06.2010, at 09:52, Segher Boessenkool wrote:
Also, it seems you construct the physical address by masking out bits from
the effective address. Most implementations will trap or machine check if
you address outside of physical address space, instead.
Well the only case where I
Avi Kivity wrote:
On 06/26/2010 02:24 AM, Alexander Graf wrote:
For transparent variable sharing between the hypervisor and guest, I
introduce
a shared page. This shared page will contain all the registers the
guest can
read and write safely without exiting guest context.
This patch only
Avi Kivity wrote:
On 06/28/2010 11:55 AM, Alexander Graf wrote:
+
+static inline u64 kvmppc_mmu_hash_pte(u64 eaddr) {
+return hash_64(eaddr PTE_SIZE, HPTEG_HASH_BITS_PTE);
+}
+
+static inline u64 kvmppc_mmu_hash_vpte(u64 vpage) {
+return hash_64(vpage 0xfULL
Avi Kivity wrote:
On 06/29/2010 03:56 PM, Alexander Graf wrote:
Avi Kivity wrote:
On 06/28/2010 11:55 AM, Alexander Graf wrote:
+
+static inline u64 kvmppc_mmu_hash_pte(u64 eaddr) {
+return hash_64(eaddrPTE_SIZE, HPTEG_HASH_BITS_PTE);
+}
+
+static inline u64
kvm_patch_ins
- only flush icache when patching
- introduce kvm_patch_ins_b
- update documentation
Alexander Graf (27):
KVM: PPC: Introduce shared page
KVM: PPC: Convert MSR to shared page
KVM: PPC: Convert DSISR to shared page
KVM: PPC: Convert DAR to shared page.
KVM: PPC: Convert SRR0
it.
Signed-off-by: Alexander Graf ag...@suse.de
v1 - v2:
- RMO - PAM
---
arch/powerpc/include/asm/kvm_host.h |3 +++
arch/powerpc/kvm/book3s.c |4 ++--
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_host.h
b/arch/powerpc/include
specfic header file.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/x86/include/asm/kvm_para.h |6 ++
include/linux/kvm_para.h|5 -
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index
interrupts and if necessary exit back to the
hypervisor.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins_b
---
arch/powerpc/kernel/kvm.c | 45
arch/powerpc/kernel/kvm_emul.S | 56
2
With our current MMU scheme we don't need to know about the tlbsync instruction.
So we can just nop it out.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins
---
arch/powerpc/kernel/kvm.c | 12
1 files changed, 12 insertions(+), 0 deletions(-)
diff
As we now have Book3s support for the magic page, we also need BookE to
join in on the party.
This patch implements generic magic page logic for BookE and specific
TLB logic for e500. I didn't have any 440 around, so I didn't dare to
blindly try and write up broken code.
Signed-off-by: Alexander
and code in general easier readable, let's introduce
a set of defines that save and restore r30, r31 and cr. Let's also define some
helpers to read the lower 32 bits of a 64 bit field on 32 bit systems.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/kvm_emul.S | 29
that even though you can fully read
its contents, writing to it doesn't always update all state. There are a few
safe fields that don't require hypervisor interaction. See the documentation
for a list of MSR bits that are safe to be set from inside the guest.
Signed-off-by: Alexander Graf ag
While running in hooked code we need to store register contents out because
we must not clobber any registers.
So let's add some fields to the shared page we can just happily write to.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_para.h |3 +++
1 files
:).
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- kvm guest patch framework: introduce patch_ins
---
arch/powerpc/kernel/kvm.c | 63 +
1 files changed, 63 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/kvm.c b/arch
to the shared page.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_host.h |1 -
arch/powerpc/include/asm/kvm_para.h |1 +
arch/powerpc/kvm/book3s.c| 14 +++---
arch/powerpc/kvm/book3s_emulate.c|6 +++---
arch/powerpc/kvm
very simple to
share with the guest. Hypervisor and guest both have full r/w access.
This patch converts all users of the current field to the shared page.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_host.h |2 --
arch/powerpc/include/asm/kvm_para.h |2
around.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_para.h |1 +
arch/powerpc/kvm/book3s.c |7 +++
arch/powerpc/kvm/booke.c|7 +++
3 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm
.
This patch implements stubs to handle KVM PPC hypercalls on the host and
guest side alike.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- change hypervisor calls to use new register values
---
arch/powerpc/include/asm/kvm_para.h | 100 ++-
arch/powerpc
The DSISR register contains information about a data page fault. It is fully
read/write from inside the guest context and we don't need to worry about
interacting based on writes of this register.
This patch converts all users of the current field to the shared page.
Signed-off-by: Alexander
Josh Boyer wrote:
On Thu, Jul 01, 2010 at 12:42:49PM +0200, Alexander Graf wrote:
As we now have Book3s support for the magic page, we also need BookE to
join in on the party.
This patch implements generic magic page logic for BookE and specific
TLB logic for e500. I didn't have any 440
Avi Kivity wrote:
On 07/01/2010 01:00 PM, Alexander Graf wrote:
But doesn't that mean that you still need to loop through all the hvas
that you want to invalidate?
It does.
Wouldn't it speed up dirty bitmap flushing
a lot if we'd just have a simple linked list of all sPTEs belonging
Avi Kivity wrote:
On 07/01/2010 03:28 PM, Alexander Graf wrote:
Wouldn't it speed up dirty bitmap flushing
a lot if we'd just have a simple linked list of all sPTEs belonging to
that memslot?
The complexity is O(pages_in_slot) + O(sptes_for_slot).
Usually, every page
Alexander Graf wrote:
Due to previous changes, the Book3S_32 guest MMU code didn't compile properly
when enabling debugging.
This patch repairs the broken code paths, making it possible to define
DEBUG_MMU
and friends again.
Signed-off-by: Alexander Graf ag...@suse.de
Please also
On 02.07.2010, at 09:41, Geert Uytterhoeven wrote:
On Thu, 1 Jul 2010, Alexander Graf wrote:
Currently x86 is the only architecture that uses kvm_guest_init(). With
PowerPC we're getting a second user, but the signature is different there
and we don't need to export it, as it uses the normal
Alexander Graf wrote:
We need to override EA as well as PA lookups for the magic page. When the
guest
tells us to project it, the magic page overrides any guest mappings.
In order to reflect that, we need to hook into all the MMU layers of KVM to
force map the magic page if necessary
On 02.07.2010, at 18:27, Segher Boessenkool wrote:
+To find out if we're running on KVM or not, we overlay the PVR register.
Usually
+the PVR register contains an id that identifies your CPU type. If, however,
you
+pass KVM_PVR_PARA in the register that you want the PVR result in, the
On 02.07.2010, at 19:59, Hollis Blanchard wrote:
[Resending...]
Please reconcile this with
http://www.linux-kvm.org/page/PowerPC_Hypercall_ABI, which has been
discussed in the (admittedly closed) Power.org embedded hypervisor
working group. Bear in mind that other hypervisors are already
On 02.07.2010, at 21:10, Scott Wood wrote:
On Fri, 2 Jul 2010 20:47:44 +0200
Alexander Graf ag...@suse.de wrote:
On 02.07.2010, at 19:59, Hollis Blanchard wrote:
[Resending...]
Please reconcile this with
http://www.linux-kvm.org/page/PowerPC_Hypercall_ABI, which has been
discussed
On 04.07.2010, at 00:41, Benjamin Herrenschmidt wrote:
On Fri, 2010-07-02 at 18:27 +0200, Segher Boessenkool wrote:
+To find out if we're running on KVM or not, we overlay the PVR
register. Usually
+the PVR register contains an id that identifies your CPU type. If,
however, you
+pass
On 04.07.2010, at 11:17, Alexander Graf wrote:
On 04.07.2010, at 11:10, Avi Kivity wrote:
On 07/04/2010 12:04 PM, Alexander Graf wrote:
My biggest concern about putting things in the device-tree is that I was
trying to keep things as separate as possible. Why does the firmware have
On 09.07.2010, at 06:57, MJ embd wrote:
On Thu, Jul 1, 2010 at 4:12 PM, Alexander Graf ag...@suse.de wrote:
On PPC we run PR=0 (kernel mode) code in PR=1 (user mode) and don't use the
hypervisor extensions.
While that is all great to show that virtualization is possible, there are
quite
On 09.07.2010, at 11:11, MJ embd wrote:
On Thu, Jul 1, 2010 at 4:13 PM, Alexander Graf ag...@suse.de wrote:
We just introduced a new PV interface that screams for documentation. So here
it is - a shiny new and awesome text file describing the internal works of
the PPC KVM paravirtual
On 12.07.2010, at 05:04, Takuya Yoshikawa wrote:
Hi Alex,
I've been testing dirty logging on ps3 linux for a few weeks.
- I luckily got one by chance.
That is great news!
Although I could find what was the main cause of breaking dirty logging,
I'm struggling with stabilizing KVM on
On 12.07.2010, at 09:59, Takuya Yoshikawa wrote:
Are there any restrictions in KVM on ps3 linux?
Not really. The biggest thing to keep in mind is that ram is really limited.
So make sure you have a lot of swap. In fact, I used to use a PS3 for
development and testing quite a lot myself,
...@linux.vnet.ibm.com
Signed-off-by: Alexander Graf ag...@suse.de
---
I'm not sure which tree this should go through. Avi and Ben, please
coordinate this.
---
arch/powerpc/include/asm/kvm_book3s.h |4 ++--
arch/powerpc/kvm/book3s_rmhandlers.S |4 ++--
2 files changed, 4 insertions(+), 4
Avi Kivity wrote:
On 07/19/2010 05:54 PM, Alexander Graf wrote:
I'm not sure which tree this should go through. Avi and Ben, please
coordinate this.
---
arch/powerpc/include/asm/kvm_book3s.h |4 ++--
arch/powerpc/kvm/book3s_rmhandlers.S |4 ++--
2 files changed, 4 insertions
On 20.07.2010, at 09:27, Milton Miller wrote:
On Mon, 19 Jul 2010 about 14:00:56 +0200, Alexander Graf wrote:
Milton Miller wrote:
I wrote:
Oh yea, and for book-3s, the code copies from 0x100 to __end_interrupts
in arch/powerpc/kernel/exceptions-64s.h down to the real 0, but the rest
The DSISR register contains information about a data page fault. It is fully
read/write from inside the guest context and we don't need to worry about
interacting based on writes of this register.
This patch converts all users of the current field to the shared page.
Signed-off-by: Alexander
:).
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- kvm guest patch framework: introduce patch_ins
v2 - v3:
- add self-test in guest code
- remove superfluous new lines in generic guest code
---
arch/powerpc/kernel/kvm.c | 95 +
1
the furthest we can jump with immediate branches.
So we keep 1MB of free space around in bss. After we're done initing we can just
tell the mm system that the unused pages are free, but until then we have enough
space to fit all our code in.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch
Some instructions can simply be replaced by load and store instructions to
or from the magic page.
This patch replaces often called instructions that fall into the above category.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins
---
arch/powerpc/kernel/kvm.c
We just introduced a new PV interface that screams for documentation. So here
it is - a shiny new and awesome text file describing the internal works of
the PPC KVM paravirtual interface.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- clarify guest implementation
- clarify
conditions. If we're running in hardware accelerated
hypervisor mode, a hypercall looks different from when we're running
without hardware acceleration.
Signed-off-by: Alexander Graf ag...@suse.de
---
Documentation/kvm/api.txt | 23 +++
arch/powerpc/kvm/powerpc.c | 38
around.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_para.h |1 +
arch/powerpc/kvm/book3s.c |7 +++
arch/powerpc/kvm/booke.c|7 +++
3 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/include/asm
interrupts and if necessary exit back to the
hypervisor.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins_b
---
arch/powerpc/kernel/kvm.c | 45
arch/powerpc/kernel/kvm_emul.S | 56
2
We will be introducing a method to project the shared page in guest context.
As soon as we're talking about this coupling, the shared page is colled magic
page.
This patch introduces simple defines, so the follow-up patches are easier to
read.
Signed-off-by: Alexander Graf ag...@suse.de
to the shared page.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_host.h |1 -
arch/powerpc/include/asm/kvm_para.h |1 +
arch/powerpc/kvm/book3s.c| 14 +++---
arch/powerpc/kvm/book3s_emulate.c|6 +++---
arch/powerpc/kvm
.
This patch implements stubs to handle KVM PPC hypercalls on the host and
guest side alike.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- change hypervisor calls to use new register values
v2 - v3:
- move PV interface to ePAPR
- only check R0 on hypercall
- remove PVR hack
On BookE the preferred way to write the EE bit is the wrteei instruction. It
already encodes the EE bit in the instruction.
So in order to get BookE some speedups as well, let's also PV'nize thati
instruction.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins_b
With our current MMU scheme we don't need to know about the tlbsync instruction.
So we can just nop it out.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- use kvm_patch_ins
---
arch/powerpc/kernel/kvm.c | 12
1 files changed, 12 insertions(+), 0 deletions(-)
diff
We have all the hypervisor pieces in place now, but the guest parts are still
missing.
This patch implements basic awareness of KVM when running Linux as guest. It
doesn't do anything with it yet though.
Signed-off-by: Alexander Graf ag...@suse.de
---
v2 - v3:
- Add hypercall stub
---
arch
We need to override EA as well as PA lookups for the magic page. When the guest
tells us to project it, the magic page overrides any guest mappings.
In order to reflect that, we need to hook into all the MMU layers of KVM to
force map the magic page if necessary.
Signed-off-by: Alexander Graf ag
in such a critical section and thus may not receive any interrupts.
Signed-off-by: Alexander Graf ag...@suse.de
---
v1 - v2:
- make crit detection only trigger in supervisor mode
---
arch/powerpc/include/asm/kvm_para.h |1 +
arch/powerpc/kvm/book3s.c | 18
it.
Signed-off-by: Alexander Graf ag...@suse.de
v2 - v3:
- RMO - PAM (non-magic page)
---
arch/powerpc/include/asm/kvm_host.h |3 +++
arch/powerpc/kvm/book3s.c |4 ++--
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/include/asm/kvm_host.h
b/arch
very simple to
share with the guest. Hypervisor and guest both have full r/w access.
This patch converts all users of the current field to the shared page.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_host.h |2 --
arch/powerpc/include/asm/kvm_para.h |2
for relocatable kernels
Alexander Graf (27):
KVM: PPC: Introduce shared page
KVM: PPC: Convert MSR to shared page
KVM: PPC: Convert DSISR to shared page
KVM: PPC: Convert DAR to shared page.
KVM: PPC: Convert SRR0 and SRR1 to shared page
KVM: PPC: Convert SPRG[0-4] to shared page
KVM: PPC
-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/exceptions-64s.S |6 ++
arch/powerpc/kernel/head_64.S|6 --
2 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/powerpc/kernel/exceptions-64s.S
b/arch/powerpc/kernel/exceptions-64s.S
index 3e423fb..a0f25fb
Book3S_32 requires MSR_DR to be disabled during load_up_xxx while on Book3S_64
it's supposed to be enabled. I misread the code and disabled it in both cases,
potentially breaking the PS3 which has a really small RMA.
This patch makes KVM work on the PS3 again.
Signed-off-by: Alexander Graf ag
From: Gleb Natapov g...@redhat.com
On failure gfn_to_pfn returns bad_page so use correct function to check
for that.
Signed-off-by: Gleb Natapov g...@redhat.com
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_32_mmu_host.c |2 +-
arch/powerpc/kvm/book3s_64_mmu_host.c
On Book3s_32 the tlbie instruction flushed effective addresses by the mask
0x0000. This is pretty hard to reflect with a hash that hashes ~0xfff, so
to speed up that target we should also keep a special hash around for it.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include
On 01.08.2010, at 16:08, Avi Kivity wrote:
On 07/29/2010 04:04 PM, Alexander Graf wrote:
On Book3s_32 the tlbie instruction flushed effective addresses by the mask
0x0000. This is pretty hard to reflect with a hash that hashes ~0xfff, so
to speed up that target we should also keep
On 01.08.2010, at 16:02, Avi Kivity wrote:
On 07/29/2010 03:47 PM, Alexander Graf wrote:
On PPC we run PR=0 (kernel mode) code in PR=1 (user mode) and don't use the
hypervisor extensions.
While that is all great to show that virtualization is possible, there are
quite some cases where
On 30.07.2010, at 03:00, Hollis Blanchard wrote:
This is the only kernel patch needed for KVM on 440GP. However, there are a
couple blockers in qemu at the moment, for which patches exist but are not yet
upstream.
Signed-off-by: Hollis Blanchard hol...@penguinppc.org
Please give this a
On 02.08.2010, at 10:32, Alexander Graf wrote:
On 30.07.2010, at 03:00, Hollis Blanchard wrote:
This is the only kernel patch needed for KVM on 440GP. However, there are a
couple blockers in qemu at the moment, for which patches exist but are not
yet
upstream.
Signed-off-by: Hollis
On 30.07.2010, at 02:57, Hollis Blanchard wrote:
Signed-off-by: Hollis Blanchard hol...@penguinppc.org
Missing patch description. Otherwise the same comments apply as to the previous
patches.
Alex
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To unsubscribe from this list: send the line unsubscribe kvm-ppc in
the body of a message
On 30.07.2010, at 03:48, Hollis Blanchard wrote:
The PowerPC 4xx SDRAM controller emulation unregisters RAM in its reset
callback. However, qemu_system_reset() is now called at initialization
time, so RAM is unregistered before starting the guest.
So the registration should be moved to reset
On 05.08.2010, at 09:57, Avi Kivity wrote:
On 08/03/2010 07:16 PM, Scott Wood wrote:
On Sun, 1 Aug 2010 22:21:37 +0200
Alexander Grafag...@suse.de wrote:
On 01.08.2010, at 16:02, Avi Kivity wrote:
Looks reasonable. Since it's fair to say I understand nothing about
powerpc, I'd like
On 06.08.2010, at 18:28, Kumar Gala wrote:
On Jul 29, 2010, at 7:47 AM, Alexander Graf wrote:
[without]
debian-powerpc:~# time for i in {1..1000}; do /bin/echo hello /dev/null;
done
real0m14.659s
user0m8.967s
sys 0m5.688s
[with]
debian-powerpc:~# time for i
On 07.08.2010, at 19:33, hollis_blanch...@mentor.com wrote:
Hi Avi, these patches make KVM run on 440GP (the only 440-based SoC that
wasn't
passing the compatibility check) and fix or enhance a couple very minor issues
in related code. Please apply.
Alex, please ack.
Acked-by: Alexander
On 17.08.2010, at 11:27, Avi Kivity wrote:
On 08/07/2010 08:33 PM, hollis_blanch...@mentor.com wrote:
Hi Avi, these patches make KVM run on 440GP (the only 440-based SoC that
wasn't
passing the compatibility check) and fix or enhance a couple very minor
issues
in related code. Please
.git kvm-ppc-next
Have fun with more accurate, faster and less buggy KVM on PowerPC!
Alexander Graf (23):
KVM: PPC: Move EXIT_DEBUG partially to tracepoints
KVM: PPC: Move book3s_64 mmu map debug print to trace point
KVM: PPC: Add tracepoint for generic mmu map
KVM: PPC: Move pte
When the guest jumps into kernel mode and has the magic page mapped, theres a
very high chance that it will also use it. So let's detect that scenario and
map the segment accordingly.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c | 10 ++
1 files changed, 10
The current approach duplicates the spr-bat finding logic and makes it harder
to reuse the actually used variables. So let's move everything down to the spr
handler.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_emulate.c | 48
1
From: Hollis Blanchard hollis_blanch...@mentor.com
Missing local variable.
Signed-off-by: Hollis Blanchard hollis_blanch...@mentor.com
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/44x_tlb.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc
From: Hollis Blanchard hollis_blanch...@mentor.com
Developers can now tell at a glace the exact type of the premature interrupt,
instead of just knowing that there was some premature interrupt.
Signed-off-by: Hollis Blanchard hollis_blanch...@mentor.com
Signed-off-by: Alexander Graf ag
-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/44x.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index e7b1f3f..74d0e74 100644
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -43,7 +43,7 @@ int
certain that we are on a KVM VM.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/kvm.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index 517da39..95aed6b 100644
--- a/arch/powerpc/kernel/kvm.c
for the valid bit that indicated that the sid we're
looking at actually contains useful data.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_mmu_host.c |4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c
b/arch
Now that the actual mtsr doesn't do anything anymore, we can move the sr
contents over to the shared page, so a guest can directly read and write
its sr contents from guest context.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/include/asm/kvm_book3s.h |1 -
arch/powerpc
();
/* r containts MSR_POW */
mtmsr(r | MSR_EE);
This obviously breaks, as we're going into idle mode in code sections that
don't expect to be idling.
This patch masks MSR_POW out of the stored MSR value on wakeup, making
guests happy again.
Signed-off-by: Alexander Graf ag
There is a race condition in the pte invalidation code path where we can't
be sure if a pte was invalidated already. So let's move the spin lock around
to get rid of the race.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_mmu_hpte.c | 14 --
1 files
It turns out the in-kernel hash function is sub-optimal for our subtle
hash inputs where every bit is significant. So let's revert to the original
hash functions.
This reverts commit 05340ab4f9a6626f7a2e8f9fe5397c61d494f445.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm
This is the guest side of the mtsr acceleration. Using this a guest can now
call mtsrin with almost no overhead as long as it ensures that it only uses
it with (MSR_IR|MSR_DR) == 0. Linux does that, so we're good.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kernel/asm-offsets.c
This patch moves debugging printks for shadow SLB debugging over to tracepoints.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_mmu_host.c | 22 ++
arch/powerpc/kvm/trace.h | 73 +
2 files changed, 78 insertions
So far we've been restricting ourselves to r0-r29 as registers an mtmsr
instruction could use. This was bad, as there are some code paths in
Linux actually using r30.
So let's instead handle all registers gracefully and get rid of that
stupid limitation
Signed-off-by: Alexander Graf ag
This patch moves Book3s MMU debugging over to tracepoints.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_64_mmu_host.c | 13 +--
arch/powerpc/kvm/trace.h | 34 +
2 files changed, 36 insertions(+), 11 deletions
This patch moves the SPTE flush debug printk over to tracepoints.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_mmu_hpte.c |3 +--
arch/powerpc/kvm/trace.h | 29 +
2 files changed, 30 insertions(+), 2 deletions(-)
diff --git
The different ways of flusing shadow ptes have their own debug prints which use
stupid old printk.
Let's move them to tracepoints, making them easier available, faster and
possible to activate on demand
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_mmu_hpte.c | 18
This patch moves the generic mmu map debugging over to tracepoints.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s_mmu_hpte.c |3 +++
arch/powerpc/kvm/trace.h | 29 +
2 files changed, 32 insertions(+), 0 deletions(-)
diff
it manually removed
from the guest, saving us a flush.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/book3s.c |2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index b3c1dde..3e017da 100644
--- a/arch/powerpc
On 17.08.2010, at 20:28, Scott Wood wrote:
On Tue, 17 Aug 2010 15:57:56 +0200
Alexander Graf ag...@suse.de wrote:
There are some heuristics in the PPC power management code that try to find
out if the particular hardware we're running on supports proper power
management
or just hangs
On 27.08.2010, at 21:06, Kyle Moffett wrote:
The kvmppc_e500_stlbe_invalidate() function was trying to pass too many
parameters to trace_kvm_stlb_inval(). This appears to be a bad
copy-paste from a call to trace_kvm_stlb_write().
Which kernel is this against? That trace point is already
On 22.08.2010, at 18:42, Avi Kivity wrote:
On 08/17/2010 04:57 PM, Alexander Graf wrote:
We will soon add SR PV support to the shared page, so we need some
infrastructure that allows the guest to query for features KVM exports.
This patch adds a second return value to the magic mapping
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