On Mon, May 31, 2010 at 09:59:13PM +0200, Andreas Schwab wrote:
Instead of instantiating a whole thread_struct on the stack use only the
required parts of it.
...
+_GLOBAL(kvm_cvt_fd)
+ lfd 0,0(r5) /* load up fpscr value */
+ MTFSF_L(0)
+ lfs 0,0(r3)
+
. Nevertheless it should still be fixed.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s_64.h |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h
b/arch/powerpc/include/asm/kvm_book3s_64.h
index 0dd1d86
This is a set of 8 patches of which the first 7 have been posted
previously and have had no comments. The 8th is new, but is quite
trivial. They fix a series of issues with HV-style KVM on ppc.
They only touch code that is specific to Book3S HV KVM.
The patches are against the next branch of the
existing buffer to be unregistered by
specifying a zero address. In this case the length check is not
appropriate. This makes the check conditional on the address being
non-zero.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_hv.c |5 ++---
1 file changed, 2
.
Signed-off-by: Paul Mackerras pau...@samba.org
Acked-by: Benjamin Herrenschmidt b...@kernel.crashing.org
---
arch/powerpc/include/asm/smp.h |8 +++
arch/powerpc/kernel/smp.c | 46
arch/powerpc/kvm/book3s_hv.c | 12 +--
3 files
it, and therefore
never increment the nap_count, leading to messages about wait_for_nap
timeouts.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |7 ---
arch/powerpc/kvm/book3s_hv.c| 14 +++---
2 files changed, 15 insertions(+), 6 deletions
be genuinely stopped. Since
we have no way of dividing up the time between these cases, we don't
count any of it as stolen.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |5 ++
arch/powerpc/kvm/book3s_hv.c| 127
pointer before
incrementing the nap count. It also removes unnecessary setting
of the vcpu and vcore pointers in the paca in kvmppc_core_vcpu_load.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_hv.c| 41 ++-
arch/powerpc/kvm
done that. The caller (kvmppc_run_vcpu) wasn't
actually checking for pending exceptions, so we add that.
The change of if to while in kvmppc_run_vcpu is to make sure that we
never call kvmppc_remove_runnable() when the vcore state is RUNNING or
EXITING.
Signed-off-by: Paul Mackerras pau
state have been combined into a single
KVMPPC_VCPU_NOTREADY state, since we no longer need to distinguish
between them.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |5 +--
arch/powerpc/kvm/book3s_hv.c| 74
by setting kvm-arch.hpte_mod_interest to a non-zero value.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s_64.h |6 ++
arch/powerpc/include/asm/kvm_host.h |1 +
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 25 ++---
3 files
with the address of a dummy word as the
place to store the HPTE index, thus avoiding corrupting the guest R4.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s.h |5 +++--
arch/powerpc/kvm/book3s_64_mmu_hv.c | 36 +++--
arch
This series of patches provides an interface by which userspace can
read and write the hashed page table (HPT) of a Book3S HV guest.
The interface is an ioctl which provides a file descriptor which can
be accessed with the read() and write() system calls. The data read
and written is the guest
kvm pointer is available but a struct vcpu
pointer isn't. Therefore this creates a variant of mmu_notifier_retry
called kvm_mmu_notifier_retry that takes a struct kvm pointer, and
implements mmu_notifier_retry in terms of it.
Signed-off-by: Paul Mackerras pau...@samba.org
---
include/linux
changed since they were last read.
A read that finds no changed HPTEs in the HPT following where the last
read finished will return 0 bytes.
Signed-off-by: Paul Mackerras pau...@samba.org
---
Documentation/virtual/kvm/api.txt| 53 +
arch/powerpc/include/asm/kvm.h | 24
This makes a HPTE removal function, kvmppc_do_h_remove(), available
outside book3s_hv_rm_mmu.c. This will be used by the HPT writing
code.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s.h |3 +++
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 19
On Tue, Oct 16, 2012 at 12:06:58PM +0200, Avi Kivity wrote:
On 10/16/2012 06:01 AM, Paul Mackerras wrote:
+4.78 KVM_PPC_GET_HTAB_FD
+
+Capability: KVM_CAP_PPC_HTAB_FD
+Architectures: powerpc
+Type: vm ioctl
+Parameters: Pointer to struct kvm_get_htab_fd (in)
+Returns: file
On Tue, Oct 16, 2012 at 03:06:33PM +0200, Avi Kivity wrote:
On 10/16/2012 01:58 PM, Paul Mackerras wrote:
On Tue, Oct 16, 2012 at 12:06:58PM +0200, Avi Kivity wrote:
Does/should the fd support O_NONBLOCK and poll? (=waiting for an entry
to change).
No.
This forces userspace
On Wed, Oct 17, 2012 at 04:39:57PM -0400, Christoffer Dall wrote:
On Wed, Oct 17, 2012 at 4:38 PM, Alexander Graf ag...@suse.de wrote:
On 10/14/2012 02:04 AM, Christoffer Dall wrote:
*** warning: this RFC patch series is only compile-tested ***
We need a way to specify the address at
On Tue, Oct 23, 2012 at 12:48:28PM +0200, Jan Kiszka wrote:
The current irqchip API is like this:
KVM_CREATE_IRQCHIP (without any parameters)
...
KVM_CREATE_VCPU
KVM_SET_IRQCHIP (or the other way around)
...
KVM_RUN
The arguments you cannot pass via KVM_CREATE_IRQCHIP - which is more
On Fri, Sep 14, 2012 at 03:15:32PM +0200, Alexander Graf wrote:
On 14.09.2012, at 14:45, Paul Mackerras wrote:
On Fri, Sep 14, 2012 at 02:13:37PM +0200, Alexander Graf wrote:
So do you think it makes more sense to reimplement a large page allocator
in KVM, as this patch set does
Currently kvmppc_core_dequeue_external() takes a struct kvm_interrupt *
argument and does nothing with it, in any of its implementations.
This removes it in order to make things easier for forthcoming
in-kernel interrupt controller emulation code.
Signed-off-by: Paul Mackerras pau...@samba.org
the CPU priority setting, the pending IPI
priority, and the priority and source number of any pending external
interrupt.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_ppc.h |2 +
arch/powerpc/include/uapi/asm/kvm.h | 11 +
arch/powerpc/kvm/book3s.c
Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s_asm.h |8 ++-
arch/powerpc/include/asm/kvm_ppc.h| 29
arch/powerpc/kernel/asm-offsets.c |2 +
arch/powerpc/kvm/book3s_hv.c | 26
as at present.
Signed-off-by: Michael Ellerman mich...@ellerman.id.au
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Paul Mackerras pau...@samba.org
---
Documentation/virtual/kvm/api.txt | 19
arch/powerpc/include/asm/hvcall.h |3 +
arch/powerpc/include/asm
.
For debugging purposes, the use of the real mode implementation can be
disabled by setting the KVM_ICP_FLAG_NOREALMODE bit in the icp.flags
field of struct kvm_irqchip_args.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc
This series implements in-kernel emulation of the XICS interrupt
controller specified in the PAPR specification and used by pseries
guests. Since the XICS is organized a bit differently to the
interrupt controllers used on x86 machines, I have defined some new
ioctls for setting up the XICS and
(the least favoured value). ibm,int-on
restores the saved_priority to the priority field, and ibm,set-xive
sets both the priority and the saved_priority to the specified
priority value.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_ppc.h |2 +
arch/powerpc/kvm
request).
This also makes sure that we clear the ceded flag when we handle a
wakeup from cede in real mode, and fixes a potential infinite loop
in kvmppc_run_vcpu() which can occur if we ever end up with the ceded
flag set but MSR[EE] off.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch
...@ellerman.id.au reworked by myself.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Paul Mackerras pau...@samba.org
---
Documentation/virtual/kvm/api.txt | 17 +
arch/powerpc/include/asm/kvm_book3s.h |1 +
arch/powerpc/include/asm/kvm_host.h |8 +
arch/powerpc
sources to be processed, and a pointer to an array
with space for 64 bits per source where the state of the interrupt
sources are to be stored or loaded. The interrupt sources are required
to all be within one ICS.
Signed-off-by: Paul Mackerras pau...@samba.org
---
Documentation/virtual/kvm/api.txt
-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_pr.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 15d74e5..71b7988 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm
Here are some fixes for PR-style KVM. With these I can successfully
run a pseries (PAPR) guest under PR KVM on a POWER7. (This is all
running inside a HV KVM virtual machine.) The patches are against
Alex Graf's kvm-ppc-next branch.
Paul.
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on accessing them.
This also adds a very minimal emulation of the DSCR (data stream
control register). Writes are ignored and reads return zero.
Signed-off-by: Paul Mackerras pau...@samba.org
---
This adds these registers for all CPUs; currently we don't seem to
make the presence or absence of SPRs
of if statements. Similarly kvmppc_handle_ext
needs to be able to load up more than one set of registers.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/reg.h |1 +
arch/powerpc/kvm/book3s_exports.c|3 -
arch/powerpc/kvm/book3s_pr.c | 112
() and
kvm_test_age_hva()).
Signed-off-by: Paul Mackerras pau...@samba.org
Cc: sta...@vger.kernel.org
---
Since this can cause the host to hang, it should go into Linus' tree
ASAP and be backported to 3.6.
arch/powerpc/kvm/book3s_64_mmu_hv.c | 25 +
1 file changed, 25 insertions(+)
diff
it
up to kvmppc_handle_exit() to handle the condition, which it doesn't,
so the situation is no better -- but no worse -- on PPC970 now.)
Signed-off-by: Paul Mackerras pau...@samba.org
---
This patch is against the kvm tree's next branch.
arch/powerpc/kvm/Makefile |1 +
arch
-by: Paul Mackerras pau...@samba.org
---
Documentation/virtual/kvm/api.txt| 53 +
arch/powerpc/include/asm/kvm_book3s_64.h | 18 ++
arch/powerpc/include/asm/kvm_ppc.h |2 +
arch/powerpc/include/uapi/asm/kvm.h | 24 +++
arch/powerpc/kvm/book3s_64_mmu_hv.c | 344
This makes a HPTE removal function, kvmppc_do_h_remove(), available
outside book3s_hv_rm_mmu.c. This will be used by the HPT writing
code.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s.h |3 +++
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 19
with the address of a dummy word as the
place to store the HPTE index, thus avoiding corrupting the guest R4.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s.h |5 +++--
arch/powerpc/kvm/book3s_64_mmu_hv.c | 36 +++--
arch
by setting kvm-arch.hpte_mod_interest to a non-zero value.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_book3s_64.h |6 ++
arch/powerpc/include/asm/kvm_host.h |1 +
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 25 ++---
3 files
This series of patches provides an interface by which userspace can
read and write the hashed page table (HPT) of a Book3S HV guest.
The interface is an ioctl which provides a file descriptor which can
be accessed with the read() and write() system calls. The data read
and written is the guest
On Mon, Nov 19, 2012 at 01:36:42PM +0100, Alexander Graf wrote:
Aren't atomic reads expensive? Doing one on every guest HPTE modification
(when nobody is listening) sounds quite excessive. Wouldn't it be cheaper to
just always update the bit?
As Scott said, it's just an ordinary load. The
On Mon, Nov 19, 2012 at 01:53:44PM +0100, Alexander Graf wrote:
+static inline unsigned long slb_pgsize_encoding(unsigned long psize)
+{
+ unsigned long senc = 0;
+
+ if (psize 0x1000) {
+ senc = SLB_VSID_L;
+ if (psize == 0x1)
+ senc
This makes a HPTE removal function, kvmppc_do_h_remove(), available
outside book3s_hv_rm_mmu.c. This will be used by the HPT writing
code.
Signed-off-by: Paul Mackerras pau...@samba.org
---
v2: basically unchanged from v1, just rediffed
arch/powerpc/include/asm/kvm_book3s.h |3 +++
arch
as modified.
Signed-off-by: Paul Mackerras pau...@samba.org
---
v2: added HPTE_GR_RESERVED, clear those bits in H_ENTER
arch/powerpc/include/asm/kvm_book3s_64.h |9 +
arch/powerpc/include/asm/kvm_host.h |1 +
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 28
-by: Paul Mackerras pau...@samba.org
---
v2: added comments, added reserved field in struct kvm_get_htab_fd
Documentation/virtual/kvm/api.txt| 53 +
arch/powerpc/include/asm/kvm_book3s_64.h | 22 ++
arch/powerpc/include/asm/kvm_ppc.h |2 +
arch/powerpc/include/uapi/asm/kvm.h
by the guest.
This fixes it by only modifying the index and present bits in the
reverse map entry, thus preserving the reference and change bits.
We were also unnecessarily setting the reference bit, and this
fixes that too.
Signed-off-by: Paul Mackerras pau...@samba.org
---
This is against Alex Graf's
On Tue, Nov 20, 2012 at 10:16:24AM +0100, Alexander Graf wrote:
Documentation is out of sync :).
Oops, sorry... :)
Applied all 3 with fixed documentation.
Great, thanks.
Regards,
Paul.
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it
up to kvmppc_handle_exit() to handle the condition, which it doesn't,
so the situation is no better -- but no worse -- on PPC970 now.)
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/Makefile |1 +
arch/powerpc/kvm/book3s_hv_ras.c| 115
reduce the HPTE permissions to read-only.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_hv_rm_mmu.c | 22 ++
1 file changed, 22 insertions(+)
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 7e1f7e2
() and
kvm_test_age_hva()).
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_64_mmu_hv.c | 24
1 file changed, 24 insertions(+)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c
b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 0aa4073..1029e22 100644
--- a/arch/powerpc
This series of patches fixes various bugs that we have found recently.
The bugs fixed in patches 1, 3 and 4 are also vulnerabilities where
the guest could cause the host to crash or could access host memory
inappropriately. The bug fixed in patch 2 could cause the host to
hang or crash after the
with the index of the first entry we skipped
rather than the first changed entry. This fixes it.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_64_mmu_hv.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c
b/arch
do local
invalidations regardless of the H_LOCAL flag.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |5 +--
arch/powerpc/kernel/asm-offsets.c |4 +--
arch/powerpc/kvm/book3s_64_mmu_hv.c |7 ++--
arch/powerpc/kvm/book3s_hv.c
On Fri, Nov 23, 2012 at 04:43:03PM +0100, Alexander Graf wrote:
On 22.11.2012, at 10:28, Paul Mackerras wrote:
- With the possibility of the host paging out guest pages, the use of
H_LOCAL by an SMP guest is dangerous since the guest could possibly
retain and use a stale TLB entry
On Fri, Nov 23, 2012 at 03:13:09PM +0100, Alexander Graf wrote:
On 22.11.2012, at 10:25, Paul Mackerras wrote:
+ /* Do they have an SLB shadow buffer registered? */
+ slb = vcpu-arch.slb_shadow.pinned_addr;
+ if (!slb)
+ return;
Mind to explain this case? What
On Fri, Nov 23, 2012 at 04:47:45PM +0100, Alexander Graf wrote:
On 22.11.2012, at 10:28, Paul Mackerras wrote:
Currently, if the guest does an H_PROTECT hcall requesting that the
permissions on a HPT entry be changed to allow writing, we make the
requested change even if the page
machine check handler decides that the system can
continue executing, kvmppc_handle_exit() delivers a machine check
interrupt to the guest -- once again to let the guest know that SRR0/1
have been modified.
Signed-off-by: Paul Mackerras pau...@samba.org
---
Alex: let me know if you want me to redo 3/5
On Sat, Nov 24, 2012 at 10:05:37AM +0100, Alexander Graf wrote:
On 23.11.2012, at 23:13, Paul Mackerras pau...@samba.org wrote:
On Fri, Nov 23, 2012 at 04:47:45PM +0100, Alexander Graf wrote:
On 22.11.2012, at 10:28, Paul Mackerras wrote:
Currently, if the guest does
On Mon, Nov 26, 2012 at 02:10:33PM +0100, Alexander Graf wrote:
On 23.11.2012, at 23:07, Paul Mackerras wrote:
On Fri, Nov 23, 2012 at 04:43:03PM +0100, Alexander Graf wrote:
On 22.11.2012, at 10:28, Paul Mackerras wrote:
- With the possibility of the host paging out guest pages
On Mon, Nov 26, 2012 at 02:15:16PM +0100, Alexander Graf wrote:
On 23.11.2012, at 22:42, Paul Mackerras wrote:
On Fri, Nov 23, 2012 at 03:13:09PM +0100, Alexander Graf wrote:
On 22.11.2012, at 10:25, Paul Mackerras wrote:
+ /* Do they have an SLB shadow buffer registered
On Mon, Nov 26, 2012 at 11:03:48PM +0100, Alexander Graf wrote:
On 26.11.2012, at 22:55, Alexander Graf wrote:
On 26.11.2012, at 22:33, Paul Mackerras wrote:
On Mon, Nov 26, 2012 at 02:15:16PM +0100, Alexander Graf wrote:
On 23.11.2012, at 22:42, Paul Mackerras wrote
On Mon, Nov 26, 2012 at 11:03:19PM +0100, Alexander Graf wrote:
On 26.11.2012, at 22:48, Paul Mackerras wrote:
On Mon, Nov 26, 2012 at 02:10:33PM +0100, Alexander Graf wrote:
On 23.11.2012, at 23:07, Paul Mackerras wrote:
On Fri, Nov 23, 2012 at 04:43:03PM +0100, Alexander Graf
On Tue, Nov 27, 2012 at 12:16:28AM +0100, Alexander Graf wrote:
On 24.11.2012, at 09:37, Paul Mackerras wrote:
Currently, if a machine check interrupt happens while we are in the
guest, we exit the guest and call the host's machine check handler,
which tends to cause the host to panic
On Tue, Nov 27, 2012 at 12:20:08AM +0100, Alexander Graf wrote:
Hrm. Promise to run checkpatch yourself next time and I'll fix it up for you
this time ;)
OK, will do, thanks. :)
Paul.
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On Thu, Jun 30, 2011 at 05:04:23PM +0200, Alexander Graf wrote:
On 06/29/2011 12:41 PM, Paul Mackerras wrote:
+struct kvm_ppc_set_platform {
+__u16 platform; /* defines the OS/hypervisor ABI */
+__u16 guest_arch; /* e.g. decimal 206 for v2.06 */
+__u32 flags
On Fri, Jul 01, 2011 at 11:37:42AM -0700, Dave Hansen wrote:
On Wed, 2011-06-29 at 20:21 +1000, Paul Mackerras wrote:
+struct kvmppc_pginfo {
+ unsigned long pfn;
+ atomic_t refcnt;
+};
I only see this refcnt inc'd in one spot and never decremented or read.
Is the refcnt just
On Tue, Aug 09, 2011 at 06:31:48PM +0200, Alexander Graf wrote:
Now that Book3S PV mode can also run PAPR guests, we can add a PAPR cap and
enable it for all Book3S targets. Enabling that CAP switches KVM into PAPR
mode.
Don't we want to enable it only for 64-bit hosts? Trying to run a
PAPR
On Wed, Aug 10, 2011 at 09:59:41AM +0200, Alexander Graf wrote:
Am 10.08.2011 um 06:42 schrieb Paul Mackerras pau...@samba.org:
On Tue, Aug 09, 2011 at 06:31:48PM +0200, Alexander Graf wrote:
Now that Book3S PV mode can also run PAPR guests, we can add a PAPR cap and
enable
On Tue, Aug 07, 2012 at 12:57:14PM +0200, Alexander Graf wrote:
The e500 target has lived without mmu notifiers ever since it got
introduced, but fails for the user space check on them with hugetlbfs.
Ironically that user space check isn't necessary any more since David
Gibson's fix for the
On Thu, Aug 09, 2012 at 03:27:17PM -0300, Marcelo Tosatti wrote:
On Mon, Aug 06, 2012 at 08:08:16PM +1000, Paul Mackerras wrote:
The generic KVM code uses SRCU (sleeping RCU) to protect accesses
to the memslots data structures against updates due to userspace
adding, modifying or removing
On Thu, Aug 09, 2012 at 03:22:38PM -0300, Marcelo Tosatti wrote:
On Mon, Aug 06, 2012 at 08:06:55PM +1000, Paul Mackerras wrote:
The generic KVM code uses SRCU (sleeping RCU) to protect accesses
to the memslots data structures against updates due to userspace
adding, modifying or removing
On Thu, Aug 09, 2012 at 03:16:12PM -0300, Marcelo Tosatti wrote:
The !memslot-npages case is handled in __kvm_set_memory_region
(please read that part, before kvm_arch_prepare_memory_region() call).
kvm_arch_flush_shadow should be implemented.
Book3S HV doesn't have shadow page tables per
On Fri, Aug 10, 2012 at 03:35:53PM -0300, Marcelo Tosatti wrote:
There's no plan. I just wanted to confirm this before converting
to per-memslot flush.
1) __kvm_set_memory_region line 807:
* - gfn_to_hva (kvm_read_guest, gfn_to_pfn)
* -
On Mon, Aug 13, 2012 at 01:34:11PM -0300, Marcelo Tosatti wrote:
On Sat, Aug 11, 2012 at 10:37:54AM +1000, Paul Mackerras wrote:
In fact I need to remove any translations in the old range *before*
the new memslot gets committed, whereas this happens after that.
This is why I was doing
,
leading to an oops when unregistering the VPA.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_ppc.h |2 ++
arch/powerpc/kvm/book3s_hv.c | 54 +++-
arch/powerpc/kvm/powerpc.c | 23 +++
include/linux
On Fri, Aug 17, 2012 at 06:38:29PM +1000, Benjamin Herrenschmidt wrote:
When making a vcpu non-runnable we incorrectly changed the
thread IDs of all other threads on the core, just remove that
code.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Acked-by: Paul Mackerras pau
waitqueue) causing unload to be called, potentially
clobbering the value.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Acked-by: Paul Mackerras pau...@samba.org
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On Thu, Aug 23, 2012 at 05:24:00PM +0900, Takuya Yoshikawa wrote:
On Thu, 23 Aug 2012 15:42:49 +0800
Gavin Shan sha...@linux.vnet.ibm.com wrote:
The build error was caused by that builtin functions are calling
the functions implemented in modules. That was introduced by the
following
by moving function __gfn_to_hva_memslot()
from kvm_main.c to kvm_host.h and making that inline so that the
builtin function (kvmppc_h_enter) can use that.
Signed-off-by: Gavin Shan sha...@linux.vnet.ibm.com
Acked-by: Paul Mackerras pau...@samba.org
By the way, when you give a commit ID it's
On Thu, Aug 23, 2012 at 10:55:37AM -0300, Marcelo Tosatti wrote:
There are a number of options to consider:
1) Merge the current patchset from Paul, which has two downsides:
1-1) It contains an unfixable race.
The race being that new HTPEs using the old base address could get
inserted
On Fri, Aug 24, 2012 at 03:54:56PM -0300, Marcelo Tosatti wrote:
Paul, does that work for you.
Yes, looks great, thanks.
Paul.
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obviously don't care about the dirty bits any more.
Signed-off-by: Paul Mackerras pau...@samba.org
---
This is on top of Alex's kvm-ppc-next branch with the KVM tree's next
branch merged in and then Marcelo's set of 3 patches on that. This
needs more testing, but I thought I would get the code
in to
kvmppc_core_prepare_memory_region, since we need to initialize its
arch.slot_phys member on Book3S HV.
Signed-off-by: Paul Mackerras pau...@samba.org
---
This is on top of Alex's kvm-ppc-next branch with the KVM tree's next
branch merged in and then Marcelo's set of 3 patches on that.
arch/powerpc/include/asm
From: Benjamin Herrenschmidt b...@kernel.crashing.org
When making a vcpu non-runnable we incorrectly changed the
thread IDs of all other threads on the core, just remove that
code.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Paul Mackerras pau...@samba.org
pointer before
incrementing the nap count. It also removes unnecessary setting
of the vcpu and vcore pointers in the paca in kvmppc_core_vcpu_load.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_hv.c| 41 ++-
arch/powerpc/kvm
.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/smp.h |8
arch/powerpc/kernel/smp.c | 44
arch/powerpc/kvm/book3s_hv.c | 12 +--
3 files changed, 62 insertions(+), 2 deletions(-)
diff --git a/arch
state have been combined into a single
KVMPPC_VCPU_NOTREADY state, since we no longer need to distinguish
between them.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |5 +--
arch/powerpc/kvm/book3s_hv.c| 74
/H_REMOVE/H_BULK_REMOVE
are performance-critical hot paths.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_64_mmu_hv.c | 17 +
arch/powerpc/kvm/book3s_hv.c| 27 +++
2 files changed, 36 insertions(+), 8 deletions(-)
diff
This set of 12 patches contains various fixes collected during the
process of getting reboot of Book3S HV guests to work correctly, plus
some needed for Ben H's forthcoming series to implement in-kernel XICS
(interrupt controller) emulation, plus two patches around handling
memslots properly.
the gpa right PAGE_SHIFT bits.
Reported-by: Alexey Kardashevskiy a...@ozlabs.ru
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_64_mmu_hv.c |9 -
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c
b/arch
it, and therefore
never increment the nap_count, leading to messages about wait_for_nap
timeouts.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |7 ---
arch/powerpc/kvm/book3s_hv.c| 14 +++---
2 files changed, 15 insertions(+), 6 deletions
be genuinely stopped. Since
we have no way of dividing up the time between these cases, we don't
count any of it as stolen.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |5 ++
arch/powerpc/kvm/book3s_hv.c| 127
to be called, potentially
clobbering the value.
Signed-off-by: Benjamin Herrenschmidt b...@kernel.crashing.org
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/kvm/book3s_pr.c |3 ++-
arch/powerpc/kvm/booke.c |2 ++
arch/powerpc/kvm/powerpc.c |2 --
3 files changed, 4
,
leading to an oops when unregistering the VPA.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_ppc.h |2 ++
arch/powerpc/kvm/book3s_hv.c | 54 +++-
arch/powerpc/kvm/powerpc.c | 23 +++
include/linux
in to
kvmppc_core_prepare_memory_region, since we need to initialize its
arch.slot_phys member on Book3S HV.
Signed-off-by: Paul Mackerras pau...@samba.org
---
arch/powerpc/include/asm/kvm_host.h |9 +--
arch/powerpc/include/asm/kvm_ppc.h |5 ++
arch/powerpc/kvm/book3s_64_mmu_hv.c |6 +-
arch/powerpc/kvm
done that. The caller (kvmppc_run_vcpu) wasn't
actually checking for pending exceptions, so we add that.
The change of if to while in kvmppc_run_vcpu is to make sure that we
never call kvmppc_remove_runnable() when the vcore state is RUNNING or
EXITING.
Signed-off-by: Paul Mackerras pau
.
Signed-off-by: Paul Mackerras pau...@samba.org
---
v2: export {,un}inhibit_secondary_onlining for the case where KVM is
a module.
arch/powerpc/include/asm/smp.h |8 +++
arch/powerpc/kernel/smp.c | 46
arch/powerpc/kvm/book3s_hv.c | 12
This series of 3 patches fixes up the memslot handling for Book3S HV
style KVM on powerpc, making slot deletion and modification work and
making sure we have the appropriate SRCU synchronization against
updates.
The series is against the next branch of the kvm tree. These patches
have all been
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