Split the mapping code in blk_rq_map_sg() to a helper
__blk_segment_map_sg(), so that other mapping function, e.g.
blk_bio_map_sg(), can share the code.
Cc: Rusty Russell ru...@rustcorp.com.au
Cc: Jens Axboe ax...@kernel.dk
Cc: Christoph Hellwig h...@lst.de
Cc: Tejun Heo t...@kernel.org
Cc:
Add a helper to map a bio to a scatterlist, modelled after
blk_rq_map_sg.
This helper is useful for any driver that wants to create
a scatterlist from its -make_request_fn method.
Changes in v2:
- Use __blk_segment_map_sg to avoid duplicated code
- Add cocbook style function comment
Cc: Rusty
This patch introduces bio-based IO path for virtio-blk.
Compared to request-based IO path, bio-based IO path uses driver
provided -make_request_fn() method to bypasses the IO scheduler. It
handles the bio to device directly without allocating a request in block
layer. This reduces the IO path in
We need to support both REQ_FLUSH and REQ_FUA for bio based path since
it does not get the sequencing of REQ_FUA into REQ_FLUSH that request
based drivers can request.
REQ_FLUSH is emulated by:
1. Send VIRTIO_BLK_T_FLUSH to device
2. Wait until the flush is finished
REQ_FUA is emulated by:
1.
Hi folks,
This version added REQ_FLUSH and REQ_FUA support as suggested by Christoph and
rebased against latest linus's tree.
Jens, could you please consider picking up the dependencies 1/4 and 2/4 in your
tree. Thanks!
This patchset implements bio-based IO path for virito-blk to improve
On 07/30/2012 09:44 PM, Christoph Hellwig wrote:
On Mon, Jul 30, 2012 at 09:31:06AM +0200, Paolo Bonzini wrote:
You only need to add REQ_FLUSH support. The virtio-blk protocol does
not support REQ_FUA, because there's no easy way to do it in userspace.
A bio-based driver needs to handle both
On Thu, Aug 02, 2012 at 02:25:56PM +0800, Asias He wrote:
We need to support both REQ_FLUSH and REQ_FUA for bio based path since
it does not get the sequencing of REQ_FUA into REQ_FLUSH that request
based drivers can request.
REQ_FLUSH is emulated by:
1. Send VIRTIO_BLK_T_FLUSH to device
On 08/02/2012 02:27 PM, Christoph Hellwig wrote:
On Thu, Aug 02, 2012 at 02:25:56PM +0800, Asias He wrote:
We need to support both REQ_FLUSH and REQ_FUA for bio based path since
it does not get the sequencing of REQ_FUA into REQ_FLUSH that request
based drivers can request.
REQ_FLUSH is
On 08/01/2012 11:55 PM, Marcelo Tosatti wrote:
On Wed, Aug 01, 2012 at 04:19:01PM +0530, Raghavendra K T wrote:
On 08/01/2012 08:37 AM, Marcelo Tosatti wrote:
On Tue, Jul 24, 2012 at 02:23:59PM +0530, Raghavendra K T wrote:
From: Raghavendra K Traghavendra...@linux.vnet.ibm.com
Thanks Alex
On Mon, Jul 30, 2012 at 07:12:15PM -0600, Alex Williamson wrote:
kvm_eoifd.fd specifies the eventfd used for
+notification. KVM_EOIFD_FLAG_DEASSIGN is used to de-assign an
eoifd
+once assigned. KVM_EOIFD also requires additional bits set in
+kvm_eoifd.flags
On 2012-08-01 20:09, Alex Williamson wrote:
On Wed, 2012-08-01 at 09:13 +0200, Jan Kiszka wrote:
On 2012-08-01 07:18, Alex Williamson wrote:
+#define VFIO_IOMMU_UNMAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 14)
+
+#endif /* VFIO_H */
Please patch update-linux-headers.sh and let it do its work
On 2012-08-01 21:40, Alex Williamson wrote:
On Wed, 2012-08-01 at 12:14 -0600, Alex Williamson wrote:
On Wed, 2012-08-01 at 09:15 +0200, Jan Kiszka wrote:
On 2012-08-01 07:18, Alex Williamson wrote:
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
MAINTAINERS |5
Here comes the kvm-kmod that corresponds to kernel 3.5. The package is
available from
http://sourceforge.net/projects/kvm/files/kvm-kmod/3.5/kvm-kmod-3.5.tar.bz2/download
See [1] for further details on kvm-kmod.
Major KVM changes since kvm-kmod-3.4:
- additional instruction emulation
-
On 02.08.2012, at 09:08, Raghavendra K T raghavendra...@linux.vnet.ibm.com
wrote:
On 08/01/2012 11:55 PM, Marcelo Tosatti wrote:
On Wed, Aug 01, 2012 at 04:19:01PM +0530, Raghavendra K T wrote:
On 08/01/2012 08:37 AM, Marcelo Tosatti wrote:
On Tue, Jul 24, 2012 at 02:23:59PM +0530,
Avi, Marcelo, Jan? Any thoughts on this?
Alex
On 01.08.2012, at 05:17, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to make sure
we are on the right track first
On Wed, Aug 1, 2012 at 6:05 PM, Bernd Schubert
bernd.schub...@itwm.fraunhofer.de wrote:
On 07/31/2012 12:23 PM, Stefan Hajnoczi wrote:
On Mon, Jul 30, 2012 at 7:08 PM, Bernd Schubert
I took a quick glance where skb_recv_done is registered at all and traced
it
back to vp_find_vqs().
On 08/01/2012 11:59 AM, Takuya Yoshikawa wrote:
This has been already discussed on other threads and the concept itself
is not so controversial.
Looks good.
But since I know that the last patch of this series conflicts with
Paul's recent work, I want to find a way to synchronize with his
On Thu, 2012-08-02 at 12:46 +0200, Alexander Graf wrote:
Avi, Marcelo, Jan? Any thoughts on this?
Had a chat with Anthony and it looks like we can do it using the MP
state stuff which we don't currently use on powerpc, at least it seems
that's how x86 breaks IO emulation on reset.
Cheers,
Ben.
On 08/01/2012 06:17 AM, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to make sure
we are on the right track first before proposing an actual patch as we
would like
On 02.08.2012, at 14:35, Avi Kivity wrote:
On 08/01/2012 06:17 AM, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to make sure
we are on the right track first before
On 08/02/2012 03:59 PM, Alexander Graf wrote:
On 02.08.2012, at 14:35, Avi Kivity wrote:
On 08/01/2012 06:17 AM, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to
On Sun, Jul 29, 2012 at 04:18:58PM +0800, Xiao Guangrong wrote:
After commit a2766325cf9f9, the error pfn is replaced by the
error code, it need not be released anymore
[ The patch is compiling tested for powerpc ]
Signed-off-by: Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com
---
On Sun, Jul 29, 2012 at 04:14:25PM +0800, Xiao Guangrong wrote:
Then, remove get_bad_pfn
Signed-off-by: Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com
---
include/linux/kvm_host.h |1 +
virt/kvm/kvm_main.c |7 +--
2 files changed, 2 insertions(+), 6 deletions(-)
diff
On Sun, Jul 29, 2012 at 04:12:58PM +0800, Xiao Guangrong wrote:
After that, the exported and un-inline function, get_fault_pfn,
can be removed
Signed-off-by: Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com
---
arch/x86/kvm/mmu.c |2 +-
include/linux/kvm_host.h |3 ++-
On Sun, Jul 29, 2012 at 04:13:41PM +0800, Xiao Guangrong wrote:
Then, get_hwpoison_pfn and is_hwpoison_pfn can be removed
Signed-off-by: Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com
---
arch/x86/kvm/mmu.c |2 +-
include/linux/kvm_host.h |4 ++--
virt/kvm/kvm_main.c |
On Sun, Jul 29, 2012 at 04:16:28PM +0800, Xiao Guangrong wrote:
It is used to eliminate the overload of function call and cleanup
the code
Signed-off-by: Xiao Guangrong xiaoguangr...@linux.vnet.ibm.com
---
include/linux/kvm_host.h |9 +++--
virt/kvm/async_pf.c |2 +-
Use the new KVM_KVMCLOCK_CTRL ioctl to prevent guests from wrongfully
detecting lockups when in fact they were paused.
Signed-off-by: Sasha Levin levinsasha...@gmail.com
---
tools/kvm/builtin-run.c |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/tools/kvm/builtin-run.c
Use the new KVM_SIGNAL_MSI ioctl to inject interrupts directly.
We still create GSIs and keep them for two reasons:
- They're required by virtio-* devices.
- There's not much overhead since we just create them when starting the
guest, they don't use anything when the guest is running.
I applied the v5_1/3, v5_2/3 and v5_3/3 KVM-INTEL: Add new module
vmcsinfo-intel to fill VMCSINFO patch to the 3.2.14-rt24+ kernel. I am getting
some missing deceleration error. Do i need to apply any other patch before
using the VMCSINFO patch.
I started to pick #7 (#6 is in to have things in-sync between
SVM and VMX). Most other patches then were needed as dependencies.
The only difference here is #2 which I found being applied together
with #1 (which is a dependency). Since #2 is rather change to add
support than to fix a bug it was
From: Avi Kivity a...@redhat.com
commit 00b27a3efb116062ca5a276ad5cb01ea1b80b5f6 upstream
The cpuid code has grown; put it into a separate file.
Signed-off-by: Avi Kivity a...@redhat.com
BugLink: http://bugs.launchpad.net/bugs/960466
(cherry picked from commit
From: Liu, Jinsong jinsong@intel.com
commit fb215366b3c7320ac25dca766a0152df16534932 upstream
Intel latest cpu add 6 new features, refer http://software.intel.com/file/36945
The new feature cpuid listed as below:
1. FMA CPUID.EAX=01H:ECX.FMA[bit 12]
2. MOVBE
From: Avi Kivity a...@redhat.com
commit 332b56e4841ef62db4dbf1b4b92195575e1c7338 upstream
Intercept RDPMC and forward it to the PMU emulation code.
Signed-off-by: Avi Kivity a...@redhat.com
Signed-off-by: Gleb Natapov g...@redhat.com
Signed-off-by: Avi Kivity a...@redhat.com
BugLink:
From: Avi Kivity a...@redhat.com
commit 022cd0e84020eec8b589bc119699c935c7b29584 upstream
Add a helper function that emulates the RDPMC instruction operation.
Signed-off-by: Avi Kivity a...@redhat.com
Signed-off-by: Gleb Natapov g...@redhat.com
Signed-off-by: Avi Kivity a...@redhat.com
From: Avi Kivity a...@redhat.com
commit fee84b079d5ddee2247b5c1f53162c330c622902 upstream
Intercept RDPMC and forward it to the PMU emulation code.
Signed-off-by: Avi Kivity a...@redhat.com
Signed-off-by: Gleb Natapov g...@redhat.com
Signed-off-by: Avi Kivity a...@redhat.com
BugLink:
From: Gleb Natapov g...@redhat.com
commit f5132b01386b5a67f1ff673bb2b96a507a3f7e41 upstream
Use perf_events to emulate an architectural PMU, version 2.
Based on PMU version 1 emulation by Avi Kivity.
[avi: adjust for cpuid.c]
[jan: fix anonymous field initialization for older gcc]
From: Avi Kivity a...@redhat.com
commit 893420822192f717af6fde927c9e78c9b82f8327 upstream
Needed to deliver performance monitoring interrupts.
Signed-off-by: Avi Kivity a...@redhat.com
Signed-off-by: Gleb Natapov g...@redhat.com
Signed-off-by: Avi Kivity a...@redhat.com
BugLink:
On 08/02/2012 06:19 PM, Stefan Bader wrote:
I started to pick #7 (#6 is in to have things in-sync between
SVM and VMX). Most other patches then were needed as dependencies.
The only difference here is #2 which I found being applied together
with #1 (which is a dependency). Since #2 is rather
kvm_guest_time_update unconditionally clears hv_clock.flags field,
so the notification never reaches the guest.
Fix it by allowing PVCLOCK_GUEST_STOPPED to passthrough.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index
On 08/02/2012 06:33 PM, Marcelo Tosatti wrote:
kvm_guest_time_update unconditionally clears hv_clock.flags field,
so the notification never reaches the guest.
Fix it by allowing PVCLOCK_GUEST_STOPPED to passthrough.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git
On Thu, Aug 02, 2012 at 06:42:25PM +0300, Avi Kivity wrote:
On 08/02/2012 06:33 PM, Marcelo Tosatti wrote:
kvm_guest_time_update unconditionally clears hv_clock.flags field,
so the notification never reaches the guest.
Fix it by allowing PVCLOCK_GUEST_STOPPED to passthrough.
On 08/02/2012 06:43 PM, Marcelo Tosatti wrote:
On Thu, Aug 02, 2012 at 06:42:25PM +0300, Avi Kivity wrote:
On 08/02/2012 06:33 PM, Marcelo Tosatti wrote:
kvm_guest_time_update unconditionally clears hv_clock.flags field,
so the notification never reaches the guest.
Fix it by
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, August 01, 2012 11:31 PM
To: Bhushan Bharat-R65777
Cc: Alexander Graf; qemu-...@nongnu.org List; kvm-...@vger.kernel.org; qemu-
devel qemu-devel; KVM list
Subject: Re: [PATCH 4/4] Enable kvm emulated watchdog
On
On 01.08.2012, at 19:27, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, August 01, 2012 7:57 AM
To: Bhushan Bharat-R65777
Cc: qemu-...@nongnu.org List; kvm-...@vger.kernel.org; Bhushan Bharat-R65777;
qemu-devel
On 01.08.2012, at 19:36, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, August 01, 2012 7:57 AM
To: Bhushan Bharat-R65777
Cc: qemu-...@nongnu.org List; kvm-...@vger.kernel.org; Bhushan Bharat-R65777;
qemu-devel
On 01.08.2012, at 20:00, Scott Wood wrote:
On 08/01/2012 12:27 PM, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, August 01, 2012 7:57 AM
To: Bhushan Bharat-R65777
Cc: qemu-...@nongnu.org List;
On Thu, Aug 02, 2012 at 12:43:58PM -0300, Marcelo Tosatti wrote:
On Thu, Aug 02, 2012 at 06:42:25PM +0300, Avi Kivity wrote:
On 08/02/2012 06:33 PM, Marcelo Tosatti wrote:
kvm_guest_time_update unconditionally clears hv_clock.flags field,
so the notification never reaches the guest.
On Thu, 2012-08-02 at 11:02 +0200, Jan Kiszka wrote:
On 2012-08-01 20:09, Alex Williamson wrote:
On Wed, 2012-08-01 at 09:13 +0200, Jan Kiszka wrote:
On 2012-08-01 07:18, Alex Williamson wrote:
+#define VFIO_IOMMU_UNMAP_DMA _IO(VFIO_TYPE, VFIO_BASE + 14)
+
+#endif /* VFIO_H */
On 2012-08-02 18:37, Alex Williamson wrote:
On Thu, 2012-08-02 at 11:02 +0200, Jan Kiszka wrote:
On 2012-08-01 20:09, Alex Williamson wrote:
On Wed, 2012-08-01 at 09:13 +0200, Jan Kiszka wrote:
On 2012-08-01 07:18, Alex Williamson wrote:
+#define VFIO_IOMMU_UNMAP_DMA _IO(VFIO_TYPE, VFIO_BASE
v2:
- Update kernel header update script
- Pull in all changes as a result of that
- Note that vfio.h is non yet and installed header, but I'll
fix that on my next kernel vfio pull request.
- New tag for v2 as noted below.
Thanks,
Alex
VFIO kernel support was just merged into Linux, so
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
scripts/update-linux-headers.sh |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/update-linux-headers.sh b/scripts/update-linux-headers.sh
index 9d2a4bc..270d32b 100755
---
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
MAINTAINERS |5 +
configure | 12
hw/i386/Makefile.objs |1 +
3 files changed, 18 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 2d219d2..9680d69 100644
--- a/MAINTAINERS
Based on Linux as of 1a9b4993. Note that vfio.h isn't yet an installed
header at this commit, but will be fixed soon.
Signed-off-by: Alex Williamson alex.william...@redhat.com
---
linux-headers/asm-s390/kvm.h |2
linux-headers/asm-s390/kvm_para.h |2
linux-headers/asm-x86/kvm.h
On Thu, 2012-08-02 at 15:35 +0300, Avi Kivity wrote:
This is actually documented in api.txt, though not in relation to
reset:
NOTE: For KVM_EXIT_IO, KVM_EXIT_MMIO and KVM_EXIT_OSI, the
corresponding operations are complete (and guest state is
consistent)
only after userspace has
Hi Linus,
Ping on the initial tcm_vhost merge for-3.6..? I know it's been a
busier than usual merge window, but hopefully this one is still in your
PULL queue..
Otherwise if there is something else that you'd like to see different
from this PULL request, please let us know.
Thank you!
--nab
On Thu, 2012-08-02 at 16:05 +0300, Avi Kivity wrote:
Yeah, we stumbled over this chunk as well. So you're saying we
should delay the reset by invoking a self-signal if we're in such an
operation?
Yes. Qemu of course already supports this for migration, so it should
be easy to add.
Adding
On 08/02/2012 10:56 AM, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, August 01, 2012 11:31 PM
To: Bhushan Bharat-R65777
Cc: Alexander Graf; qemu-...@nongnu.org List; kvm-...@vger.kernel.org; qemu-
devel qemu-devel; KVM list
Subject:
On Mon, Jul 30, 2012 at 05:38:18PM +0300, Gleb Natapov wrote:
int r;
@@ -5554,9 +5568,13 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu,
struct kvm_run *kvm_run)
}
}
- r = complete_mmio(vcpu);
- if (r = 0)
- goto out;
+ if
On Thu, Aug 02, 2012 at 05:14:02PM -0300, Marcelo Tosatti wrote:
On Tue, Jul 31, 2012 at 04:19:02PM +0530, Nikunj A. Dadhania wrote:
From: Nikunj A. Dadhania nik...@linux.vnet.ibm.com
PV-Flush guest would indicate to flush on enter, flush the TLB before
entering and exiting the guest.
On Tue, Jul 31, 2012 at 04:18:41PM +0530, Nikunj A. Dadhania wrote:
From: Nikunj A. Dadhania nik...@linux.vnet.ibm.com
Hypervisor code to indicate guest running/pre-empteded status through
msr. The page is now pinned during MSR write time and use
kmap_atomic/kunmap_atomic to access the
Hi,
I haven't seen this question asked before. Is it possible to mount an
audio CD is a raw mode to that a VM instance can access the audio
tracks as if it were a physical CD-ROM drive? It seems that the current
implementation presents a CD-ROM to the VM, not CD-DA.
Thanks!
Regards
Erik
--
To
On Thu, Aug 02, 2012, Xiao Guangrong wrote about Re: [PATCH 02/10] nEPT: Add
EPT tables support to paging_tmpl.h:
+ #ifdef CONFIG_X86_64
+ #define PT_MAX_FULL_LEVELS 4
+ #define CMPXCHG cmpxchg
+ #else
+ #define CMPXCHG cmpxchg64
+ #define PT_MAX_FULL_LEVELS 2
+ #endif
On 08/02/2012 08:25 AM, Asias He wrote:
Hi folks,
This version added REQ_FLUSH and REQ_FUA support as suggested by Christoph and
rebased against latest linus's tree.
Jens, could you please consider picking up the dependencies 1/4 and
2/4 in your tree. Thanks!
Pickedup, thanks for
On Thu, Aug 02, 2012 at 02:25:55PM +0800, Asias He wrote:
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index c0bbeb4..95cfeed 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -14,6 +14,9 @@
#define PART_BITS 4
+static bool use_bio;
On Wed, Aug 01, 2012 at 06:03:28PM +0900, Takuya Yoshikawa wrote:
Two reasons:
- x86 can integrate rmap and rmap_pde and remove heuristics in
__gfn_to_rmap().
- Some architectures do not need rmap.
Since rmap is one of the most memory consuming stuff in KVM, ppc'd
better restrict the
On Thu, Aug 02, 2012 at 10:15:27AM -0300, Marcelo Tosatti wrote:
Remind me what is the guarantee that -Exxx does not clash with
a valid pfn number?
A pfn number is an address PAGE_SHIFT, so it will have the top 12
(at least) bits clear, whereas -Exxx will have the top bit set.
Paul.
--
To
-Original Message-
From: Wood Scott-B07421
Sent: Friday, August 03, 2012 2:02 AM
To: Bhushan Bharat-R65777
Cc: Wood Scott-B07421; Alexander Graf; qemu-...@nongnu.org List; kvm-
p...@vger.kernel.org; qemu-devel qemu-devel; KVM list
Subject: Re: [PATCH 4/4] Enable kvm emulated
于 2012年08月02日 22:30, Krishna J 写道:
I applied the v5_1/3, v5_2/3 and v5_3/3 KVM-INTEL: Add new module
vmcsinfo-intel to fill VMCSINFO patch to the 3.2.14-rt24+ kernel. I am
getting some missing deceleration error. Do i need to apply any other patch
before using the VMCSINFO patch.
On Thu, 2 Aug 2012 16:56:28 -0300, Marcelo Tosatti mtosa...@redhat.com wrote:
On Tue, Jul 31, 2012 at 04:18:41PM +0530, Nikunj A. Dadhania wrote:
From: Nikunj A. Dadhania nik...@linux.vnet.ibm.com
Hypervisor code to indicate guest running/pre-empteded status through
msr. The page is now
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_BOOKE_WATCHDOG) ioctl.
The kernel timer are used for watchdog emulation and emulates
h/w watchdog state machine. On watchdog timer expiry, it exit to QEMU
if TCR.WRC is non ZERO. QEMU can
I am sending this as a separate patch for easiness on review.
Once reviewed I will merge this with watchdog patch.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/kvm/booke.c | 63 +++---
1 files changed, 37 insertions(+), 26
On Thu, 2 Aug 2012 17:16:41 -0300, Marcelo Tosatti mtosa...@redhat.com wrote:
On Thu, Aug 02, 2012 at 05:14:02PM -0300, Marcelo Tosatti wrote:
On Tue, Jul 31, 2012 at 04:19:02PM +0530, Nikunj A. Dadhania wrote:
From: Nikunj A. Dadhania nik...@linux.vnet.ibm.com
static void
On Thu, 2 Aug 2012 16:56:28 -0300, Marcelo Tosatti mtosa...@redhat.com wrote:
+ case MSR_KVM_VCPU_STATE:
+ vcpu-arch.v_state.vs_page = gfn_to_page(vcpu-kvm, data
PAGE_SHIFT);
+ vcpu-arch.v_state.vs_offset = data ~(PAGE_MASK |
KVM_MSR_ENABLED);
Assign
Avi, Marcelo, Jan? Any thoughts on this?
Alex
On 01.08.2012, at 05:17, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to make sure
we are on the right track first
On 08/01/2012 11:59 AM, Takuya Yoshikawa wrote:
This has been already discussed on other threads and the concept itself
is not so controversial.
Looks good.
But since I know that the last patch of this series conflicts with
Paul's recent work, I want to find a way to synchronize with his
On Thu, 2012-08-02 at 12:46 +0200, Alexander Graf wrote:
Avi, Marcelo, Jan? Any thoughts on this?
Had a chat with Anthony and it looks like we can do it using the MP
state stuff which we don't currently use on powerpc, at least it seems
that's how x86 breaks IO emulation on reset.
Cheers,
Ben.
On 08/01/2012 06:17 AM, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to make sure
we are on the right track first before proposing an actual patch as we
would like
On 02.08.2012, at 14:35, Avi Kivity wrote:
On 08/01/2012 06:17 AM, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to make sure
we are on the right track first before
On 08/02/2012 03:59 PM, Alexander Graf wrote:
On 02.08.2012, at 14:35, Avi Kivity wrote:
On 08/01/2012 06:17 AM, Benjamin Herrenschmidt wrote:
Hi Avi !
We identified a problem on powerpc which seems to actually be a generic
issue, and Alex suggested we propose a generic fix. I want to
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, August 01, 2012 11:31 PM
To: Bhushan Bharat-R65777
Cc: Alexander Graf; qemu-...@nongnu.org List; kvm-ppc@vger.kernel.org; qemu-
devel qemu-devel; KVM list
Subject: Re: [PATCH 4/4] Enable kvm emulated watchdog
On
On 01.08.2012, at 19:27, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, August 01, 2012 7:57 AM
To: Bhushan Bharat-R65777
Cc: qemu-...@nongnu.org List; kvm-ppc@vger.kernel.org; Bhushan Bharat-R65777;
qemu-devel
On 01.08.2012, at 19:36, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, August 01, 2012 7:57 AM
To: Bhushan Bharat-R65777
Cc: qemu-...@nongnu.org List; kvm-ppc@vger.kernel.org; Bhushan Bharat-R65777;
qemu-devel
On 01.08.2012, at 20:00, Scott Wood wrote:
On 08/01/2012 12:27 PM, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Alexander Graf [mailto:ag...@suse.de]
Sent: Wednesday, August 01, 2012 7:57 AM
To: Bhushan Bharat-R65777
Cc: qemu-...@nongnu.org List;
On Thu, 2012-08-02 at 15:35 +0300, Avi Kivity wrote:
This is actually documented in api.txt, though not in relation to
reset:
NOTE: For KVM_EXIT_IO, KVM_EXIT_MMIO and KVM_EXIT_OSI, the
corresponding operations are complete (and guest state is
consistent)
only after userspace has
On 08/02/2012 10:56 AM, Bhushan Bharat-R65777 wrote:
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, August 01, 2012 11:31 PM
To: Bhushan Bharat-R65777
Cc: Alexander Graf; qemu-...@nongnu.org List; kvm-ppc@vger.kernel.org; qemu-
devel qemu-devel; KVM list
Subject:
On Wed, Aug 01, 2012 at 06:03:28PM +0900, Takuya Yoshikawa wrote:
Two reasons:
- x86 can integrate rmap and rmap_pde and remove heuristics in
__gfn_to_rmap().
- Some architectures do not need rmap.
Since rmap is one of the most memory consuming stuff in KVM, ppc'd
better restrict the
-Original Message-
From: Wood Scott-B07421
Sent: Friday, August 03, 2012 2:02 AM
To: Bhushan Bharat-R65777
Cc: Wood Scott-B07421; Alexander Graf; qemu-...@nongnu.org List; kvm-
p...@vger.kernel.org; qemu-devel qemu-devel; KVM list
Subject: Re: [PATCH 4/4] Enable kvm emulated
This patch adds the watchdog emulation in KVM. The watchdog
emulation is enabled by KVM_ENABLE_CAP(KVM_CAP_PPC_BOOKE_WATCHDOG) ioctl.
The kernel timer are used for watchdog emulation and emulates
h/w watchdog state machine. On watchdog timer expiry, it exit to QEMU
if TCR.WRC is non ZERO. QEMU can
I am sending this as a separate patch for easiness on review.
Once reviewed I will merge this with watchdog patch.
Signed-off-by: Bharat Bhushan bharat.bhus...@freescale.com
---
arch/powerpc/kvm/booke.c | 63 +++---
1 files changed, 37 insertions(+), 26
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