On 04.10.2013, at 06:26, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Wood Scott-B07421
Sent: Thursday, October 03, 2013 12:04 AM
To: Alexander Graf
Cc: Bhushan Bharat-R65777; kvm-ppc@vger.kernel.org; k...@vger.kernel.org;
Bhushan
Bharat-R65777
Subject: Re: [PATCH
CC'ing qemu-devel - please use qemu-ppc@ only as a tag, every mail needs to go
to qemu-devel as well.
On 03.10.2013, at 16:29, Greg Kurz wrote:
Hi,
There have been some work on the topic lately but no agreement has
been reached yet. I want to consolidate the facts in a single thread of
This adds break statements after the KVM_REG_PPC_PPR case in
kvmppc_get_one_reg() and kvmppc_set_one_reg(). The error was
introduced in commit d3ecc54390 (KVM: PPC: Book3S HV: Support POWER6
compatibility mode on POWER7). That commit also forgot to update
Documentation/virtual/kvm/api.txt with
Here are two small patches for HV KVM. The first patch in this series
corrects some silly errors in one of the patches I sent recently. The
second gives us a way to detect when we get an exception in the HV
guest entry/exit code, and is a prerequisite for the HV/PR unification
patches that
When an interrupt or exception happens in the guest that comes to the
host, the CPU goes to hypervisor real mode (MMU off) to handle the
exception but doesn't change the MMU context. After saving a few
registers, we then clear the in guest flag. If, for any reason,
we get an exception in the
On Thu, Oct 03, 2013 at 04:29:52PM +0200, Greg Kurz wrote:
Hi,
There have been some work on the topic lately but no agreement has
been reached yet. I want to consolidate the facts in a single thread of
mail and re-start the discussion. Please find below a recap of what we
have as of today:
On 04.10.2013, at 13:53, Paul Mackerras wrote:
On Thu, Oct 03, 2013 at 04:29:52PM +0200, Greg Kurz wrote:
Hi,
There have been some work on the topic lately but no agreement has
been reached yet. I want to consolidate the facts in a single thread of
mail and re-start the discussion. Please
On 04.10.2013, at 13:45, Paul Mackerras wrote:
When an interrupt or exception happens in the guest that comes to the
host, the CPU goes to hypervisor real mode (MMU off) to handle the
exception but doesn't change the MMU context. After saving a few
registers, we then clear the in guest
On 03.10.2013, at 06:14, Paul Mackerras wrote:
On Wed, Oct 02, 2013 at 08:08:44PM +0530, Aneesh Kumar K.V wrote:
From: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
This was introduced by 85a0d845d8bb5df5d2669416212f56cbe1474c6b
It's a good idea to give the headline of the commit as
This is a very rough change set required for ppc64 to use this KVM device.
vfio_rm.c is a piece of code which is going to be called from the realmode (MMU
off),
and I will put everything spapr-related under #ifdef CONFIG_SPAPR_TCE_IOMMU,
it is just friday and I have to run :)
This is an RFC but
On 04.10.2013, at 14:23, Alexander Graf wrote:
On 03.10.2013, at 06:14, Paul Mackerras wrote:
On Wed, Oct 02, 2013 at 08:08:44PM +0530, Aneesh Kumar K.V wrote:
From: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
This was introduced by 85a0d845d8bb5df5d2669416212f56cbe1474c6b
It's
On Fri, Oct 04, 2013 at 01:59:25PM +0200, Alexander Graf wrote:
On 04.10.2013, at 13:45, Paul Mackerras wrote:
When an interrupt or exception happens in the guest that comes to the
host, the CPU goes to hypervisor real mode (MMU off) to handle the
exception but doesn't change the MMU
On Fri, Oct 04, 2013 at 02:27:02PM +0200, Alexander Graf wrote:
On 04.10.2013, at 14:23, Alexander Graf wrote:
On 03.10.2013, at 06:14, Paul Mackerras wrote:
On Wed, Oct 02, 2013 at 08:08:44PM +0530, Aneesh Kumar K.V wrote:
From: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
On 03.10.2013, at 13:03, Cédric Le Goater wrote:
MMIO emulation reads the last instruction executed by the guest
and then emulates. If the guest is running in Little Endian mode,
the instruction needs to be byte-swapped before being emulated.
This patch stores the last instruction in the
On 04.10.2013, at 14:33, Paul Mackerras wrote:
On Fri, Oct 04, 2013 at 01:59:25PM +0200, Alexander Graf wrote:
On 04.10.2013, at 13:45, Paul Mackerras wrote:
When an interrupt or exception happens in the guest that comes to the
host, the CPU goes to hypervisor real mode (MMU off) to
On 04.10.2013, at 14:35, Paul Mackerras wrote:
On Fri, Oct 04, 2013 at 02:27:02PM +0200, Alexander Graf wrote:
On 04.10.2013, at 14:23, Alexander Graf wrote:
On 03.10.2013, at 06:14, Paul Mackerras wrote:
On Wed, Oct 02, 2013 at 08:08:44PM +0530, Aneesh Kumar K.V wrote:
From: Aneesh
On 21.09.2013, at 01:53, Paul Mackerras wrote:
This fixes a typo in the code that saves the guest DSCR (Data Stream
Control Register) into the kvm_vcpu_arch struct on guest exit. The
effect of the typo was that the DSCR value was saved in the wrong place,
so changes to the DSCR by the guest
On 19.09.2013, at 08:02, Bharat Bhushan wrote:
lookup_linux_pte() was searching for a pte and also sets access
flags is writable. This function now searches only pte while
access flag setting is done explicitly.
This pte lookup is not kvm specific, so moved to common code (asm/pgtable.h)
On 07.08.2013, at 12:03, Bharat Bhushan wrote:
Mark the guest page as accessed so that there is likely
less chances of this page getting swap-out.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
Thanks, applied to kvm-ppc-queue.
Alex
---
arch/powerpc/kvm/e500_mmu_host.c |
On 07.08.2013, at 12:03, Bharat Bhushan wrote:
When the MM code is invalidating a range of pages, it calls the KVM
kvm_mmu_notifier_invalidate_range_start() notifier function, which calls
kvm_unmap_hva_range(), which arranges to flush all the TLBs for guest pages.
However, the Linux PTEs for
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Friday, October 04, 2013 6:57 PM
To: Bhushan Bharat-R65777
Cc: b...@kernel.crashing.org; pau...@samba.org; k...@vger.kernel.org; kvm-
p...@vger.kernel.org; linuxppc-...@lists.ozlabs.org; Wood Scott-B07421;
On Fri, 4 Oct 2013 13:43:38 +0200
Alexander Graf ag...@suse.de wrote:
CC'ing qemu-devel - please use qemu-ppc@ only as a tag, every mail
needs to go to qemu-devel as well.
Sure I will.
On 03.10.2013, at 16:29, Greg Kurz wrote:
[...]
I have searched for an appropriate place to add the
Cédric Le Goater c...@fr.ibm.com writes:
MMIO emulation reads the last instruction executed by the guest
and then emulates. If the guest is running in Little Endian mode,
the instruction needs to be byte-swapped before being emulated.
This patch stores the last instruction in the endian
On 04.07.2013, at 08:57, Bharat Bhushan wrote:
From: Bharat Bhushan bharat.bhus...@freescale.com
Note: These patches depends on https://lkml.org/lkml/2013/7/4/49.
This patchset adds the userspace debug support for booke/bookehv.
this is tested on powerpc e500v2/e500mc devices.
Thanks,
On 19.09.2013, at 08:02, Bharat Bhushan wrote:
From: Bharat Bhushan bharat.bhus...@freescale.com
First patch is a typo fix where book3e define _PAGE_LENDIAN while it
should be defined as _PAGE_ENDIAN. This seems to show that this is never
exercised :-)
Second and third patch is to
Answering to both Paul and Alex.
On Fri, 4 Oct 2013 13:54:25 +0200
Alexander Graf ag...@suse.de wrote:
On 04.10.2013, at 13:53, Paul Mackerras wrote:
I don't mind particularly whether H_SET_MODE for the endianness
setting gets handled in the kernel or in QEMU, but I don't think it
On 04.10.2013, at 16:08, Greg Kurz wrote:
Answering to both Paul and Alex.
On Fri, 4 Oct 2013 13:54:25 +0200
Alexander Graf ag...@suse.de wrote:
On 04.10.2013, at 13:53, Paul Mackerras wrote:
I don't mind particularly whether H_SET_MODE for the endianness
setting gets handled in
Alexander Graf ag...@suse.de writes:
On 04.10.2013, at 14:23, Alexander Graf wrote:
On 03.10.2013, at 06:14, Paul Mackerras wrote:
On Wed, Oct 02, 2013 at 08:08:44PM +0530, Aneesh Kumar K.V wrote:
From: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
This was introduced by
On 03.10.2013, at 09:58, Aneesh Kumar K.V wrote:
From: Aneesh Kumar K.V aneesh.ku...@linux.vnet.ibm.com
This was introduced by 85a0d845d8 (KVM: PPC: Book3S PR: Allocate
kvm_vcpu structs from kvm_vcpu_cache).
arch/powerpc/kvm/book3s_pr.c: In function 'kvmppc_core_vcpu_create':
From: Bharat Bhushan bharat.bhus...@freescale.com
kvm: powerpc: use cache attributes from linux pte
First patch is moving functions/logic in common code so they can be used on
booke also.
Second and Third patch is actually setting caching attributes (TLB.WIMGE) using
corresponding Linux pte.
On booke, struct tlbe_ref contains host tlb mapping information
(pfn: for guest-pfn to pfn, flags: attribute associated with this mapping)
for a guest tlb entry. So when a guest creates a TLB entry then
struct tlbe_ref is set to point to valid pfn and set attributes in
flags field of the above
KVM uses same WIM tlb attributes as the corresponding qemu pte.
For this we now search the linux pte for the requested page and
get these cache caching/coherency attributes from pte.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
v5-v6
- no change
lookup_linux_pte() was searching for a pte and also sets access
flags is writable. This function now searches only pte while
access flag setting is done explicitly.
This pte lookup is not kvm specific, so moved to common code (asm/pgtable.h)
My Followup patch will use this on booke.
On 04.10.2013, at 16:55, Bharat Bhushan wrote:
lookup_linux_pte() was searching for a pte and also sets access
flags is writable. This function now searches only pte while
access flag setting is done explicitly.
This pte lookup is not kvm specific, so moved to common code (asm/pgtable.h)
On Fri, 2013-10-04 at 22:24 +1000, Alexey Kardashevskiy wrote:
This is a very rough change set required for ppc64 to use this KVM device.
vfio_rm.c is a piece of code which is going to be called from the realmode
(MMU off),
and I will put everything spapr-related under #ifdef
On Fri, 2013-09-06 at 01:06 +0200, Alexander Graf wrote:
On 06.09.2013, at 00:09, Scott Wood wrote:
On Thu, 2013-07-11 at 01:09 +0200, Alexander Graf wrote:
On 11.07.2013, at 01:08, Scott Wood wrote:
On 07/10/2013 06:04:53 PM, Alexander Graf wrote:
On 11.07.2013, at 01:01, Benjamin
On Fri, Oct 04, 2013 at 02:56:31PM +0200, Alexander Graf wrote:
On 04.10.2013, at 14:33, Paul Mackerras wrote:
On Fri, Oct 04, 2013 at 01:59:25PM +0200, Alexander Graf wrote:
On 04.10.2013, at 13:45, Paul Mackerras wrote:
When an interrupt or exception happens in the guest that
On Fri, Oct 04, 2013 at 03:00:11PM +0200, Alexander Graf wrote:
On 04.10.2013, at 14:35, Paul Mackerras wrote:
On Fri, Oct 04, 2013 at 02:27:02PM +0200, Alexander Graf wrote:
On 04.10.2013, at 14:23, Alexander Graf wrote:
On 03.10.2013, at 06:14, Paul Mackerras wrote:
On
On 05.10.2013, at 01:45, Paul Mackerras wrote:
On Fri, Oct 04, 2013 at 03:00:11PM +0200, Alexander Graf wrote:
On 04.10.2013, at 14:35, Paul Mackerras wrote:
On Fri, Oct 04, 2013 at 02:27:02PM +0200, Alexander Graf wrote:
On 04.10.2013, at 14:23, Alexander Graf wrote:
On
On 05.10.2013 2:05, Alex Williamson wrote:
On Fri, 2013-10-04 at 22:24 +1000, Alexey Kardashevskiy wrote:
This is a very rough change set required for ppc64 to use this KVM device.
vfio_rm.c is a piece of code which is going to be called from the realmode
(MMU off),
and I will put
On 10/05/2013 11:52 AM, Alexey Kardashevskiy wrote:
On 05.10.2013 2:05, Alex Williamson wrote:
On Fri, 2013-10-04 at 22:24 +1000, Alexey Kardashevskiy wrote:
This is a very rough change set required for ppc64 to use this KVM device.
vfio_rm.c is a piece of code which is going to be called
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