-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Tuesday, May 15, 2012 7:59 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org; Bhushan Bharat-R65777
Subject: Re: [PATCH] KVM: PPC: booke: Added DECAR support
On 05/15/2012 09:33 AM, Bharat Bhushan wrote:
Hi Alex,
There is below comment in arch/powerpc/kvm/booke_emulate.c
/*
* NOTE: some of these registers are not emulated on BOOKE_HV (GS-mode).
* Their backing store is in real registers, and these functions
* will return the wrong result if called for them in another context
* (such as
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-ow...@vger.kernel.org] On
Behalf Of Alexander Graf
Sent: Tuesday, May 15, 2012 8:01 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org; Bhushan Bharat-R65777
Subject: Re: [PATCH] KVM: PPC: Not optimizing
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Bhushan Bharat-R65777
Sent: Wednesday, May 16, 2012 12:58 PM
To: Alexander Graf
Cc: Wood Scott-B07421; Yoder Stuart-B08248; kvm-ppc@vger.kernel.org
Subject: Not emulated
On 05/16/2012 08:57 AM, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Tuesday, May 15, 2012 7:59 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org; Bhushan Bharat-R65777
Subject: Re: [PATCH] KVM: PPC: booke: Added DECAR support
On 05/16/2012 11:02 AM, Sethi Varun-B16395 wrote:
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Bhushan Bharat-R65777
Sent: Wednesday, May 16, 2012 12:58 PM
To: Alexander Graf
Cc: Wood Scott-B07421; Yoder Stuart-B08248;
Code in book3s_64_mmu_hv.c, which is in the modular part of HV KVM,
needs to access kvm_hpt_order, which is defined in the built-in part.
Therefore we need to export it.
Signed-off-by: Paul Mackerras pau...@samba.org
---
Alex, it's up to you whether you apply this on your kvm-ppc-next branch
or
On 05/16/2012 11:17 AM, Paul Mackerras wrote:
Code in book3s_64_mmu_hv.c, which is in the modular part of HV KVM,
needs to access kvm_hpt_order, which is defined in the built-in part.
Therefore we need to export it.
Signed-off-by: Paul Mackerraspau...@samba.org
---
Alex, it's up to you whether
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, May 16, 2012 2:36 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: booke: Added DECAR support
On 05/16/2012 08:57 AM, Bhushan Bharat-R65777 wrote:
On 05/16/2012 11:21 AM, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, May 16, 2012 2:36 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: booke: Added DECAR support
On 05/16/2012 08:57
From: Benjamin Herrenschmidt b...@kernel.crashing.org
The code forgot to scramble the VSIDs the way we normally do
and was basically using the proto VSID directly with the MMU.
This means that in practice, KVM used random VSIDs that could
collide with segments used by other user space programs.
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Alexander Graf
Sent: Wednesday, May 16, 2012 2:42 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: Not optimizing MSR_CE and MSR_DE
On 05/16/2012 02:27 PM, Sethi Varun-B16395 wrote:
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Alexander Graf
Sent: Wednesday, May 16, 2012 2:42 PM
To: Bhushan Bharat-R65777
Cc: kvm-ppc@vger.kernel.org
Subject: Re: [PATCH]
Hi Avi,
There are a few bugs in 3.4 that really should be fixed before people can
be all happy and fuzzy about KVM on PowerPC. These fixes are:
* fix POWER7 bare metal with PR=y
* fix deadlock on HV=y book3s_64 mode in low memory cases
* fix invalid MMU scope of PR=y mode on book3s_64,
In addition to normal priviledged instruction traps, we can also receive
emulation assist traps on newer hardware that has the HV bit set.
Handle that one the same way as a privileged instruction, including the
instruction fetching. That way we don't execute old instructions that we
happen to
From: Benjamin Herrenschmidt b...@kernel.crashing.org
The code forgot to scramble the VSIDs the way we normally do
and was basically using the proto VSID directly with the MMU.
This means that in practice, KVM used random VSIDs that could
collide with segments used by other user space programs.
When jumping back into the kernel to code that knows that it would be
using HSRR registers instead of SRR registers, we need to make sure we
pass it all information on where to jump to in HSRR registers.
Unfortunately, we used r10 to store the information to distinguish between
the HSRR and SRR
From: Paul Mackerras pau...@samba.org
When handling the H_BULK_REMOVE hypercall, we were forgetting to
invalidate and unlock the hashed page table entry (HPTE) in the case
where the page had been paged out. This fixes it by clearing the
first doubleword of the HPTE in that case.
This fixes a
When running on a system that is HV capable, some interrupts use HSRR
SPRs instead of the normal SRR SPRs. These are also used in the Linux
handlers to jump back to code after an interrupt got processed.
Unfortunately, in our jump back to the real host handler after we've
done the context switch
On 05/16/2012 04:05 PM, Alexander Graf wrote:
Hi Avi,
There are a few bugs in 3.4 that really should be fixed before people can
be all happy and fuzzy about KVM on PowerPC. These fixes are:
* fix POWER7 bare metal with PR=y
* fix deadlock on HV=y book3s_64 mode in low memory cases
*
When reinjecting host interrupt requests in the exit handler code,
let's also tell the interrupt handler which interrupt number we're
coming from.
Signed-off-by: Alexander Graf ag...@suse.de
---
arch/powerpc/kvm/booke.c | 12 +++-
1 files changed, 7 insertions(+), 5 deletions(-)
diff
On 05/16/2012 03:23 PM, Avi Kivity wrote:
On 05/16/2012 04:05 PM, Alexander Graf wrote:
Hi Avi,
There are a few bugs in 3.4 that really should be fixed before people can
be all happy and fuzzy about KVM on PowerPC. These fixes are:
* fix POWER7 bare metal with PR=y
* fix deadlock on
On 05/16/2012 04:28 PM, Alexander Graf wrote:
On 05/16/2012 03:23 PM, Avi Kivity wrote:
On 05/16/2012 04:05 PM, Alexander Graf wrote:
Hi Avi,
There are a few bugs in 3.4 that really should be fixed before
people can
be all happy and fuzzy about KVM on PowerPC. These fixes are:
* fix
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Alexander Graf
Sent: Wednesday, May 16, 2012 6:18 PM
To: Sethi Varun-B16395
Cc: Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org
Subject: Re: [PATCH] KVM: PPC: Not optimizing
On 05/16/2012 10:13 AM, Sethi Varun-B16395 wrote:
Why is MSR[CE] unsafe?
MSR=0
* critical interrupt comes in *
mtmsr(MSR_CE)
-- MSR == MSR_CE
* interrupt should be delivered, but host doesn't get notified that
MSR_CE is changing *
However, we completely ignore critical interrupts in KVM
On 05/16/2012 04:13 AM, Alexander Graf wrote:
On 05/16/2012 11:02 AM, Sethi Varun-B16395 wrote:
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Bhushan Bharat-R65777
Sent: Wednesday, May 16, 2012 12:58 PM
To: Alexander Graf
On 17.05.2012, at 00:29, Scott Wood scottw...@freescale.com wrote:
On 05/16/2012 04:13 AM, Alexander Graf wrote:
On 05/16/2012 11:02 AM, Sethi Varun-B16395 wrote:
-Original Message-
From: kvm-ppc-ow...@vger.kernel.org [mailto:kvm-ppc-
ow...@vger.kernel.org] On Behalf Of Bhushan
On 05/08/2012 05:40 AM, Alexander Graf wrote:
On 15.03.2012, at 21:52, Stuart Yoder wrote:
From: Liu Yu-B13201 yu@freescale.com
And add a new flag definition in kvm_ppc_pvinfo to indicate
whether the host supports the EV_IDLE hcall.
Signed-off-by: Liu Yu yu@freescale.com
28 matches
Mail list logo
