From: Jan Kiszka jan.kis...@siemens.com
kvm_arch_reset_vcpu includes the same logic (minus the obsolete feature
check), and every caller of kvm_reset_mpstate also calls that function.
Signed-off-by: Jan Kiszka jan.kis...@siemens.com
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git
From: Marcelo Tosatti mtosa...@redhat.com
* upstream-merge: (279 commits)
target-ppc: Implement correct NaN propagation rules
target-mips: Implement correct NaN propagation rules
softfloat: use float{32,64,x80,128}_maybe_silence_nan()
softfloat: add float{x80,128}_maybe_silence_nan()
From: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/monitor.c b/monitor.c
index cf1d3d0..40768bb 100644
--- a/monitor.c
+++ b/monitor.c
@@ -61,7 +61,6 @@
#include trace.h
#endif
#include ui/qemu-spice.h
-#include qemu-kvm.h
//#define
From: Jan Kiszka jan.kis...@siemens.com
Make sure to re-register the IRQ of an assigned device as INTx when the
guest disables MSI[X] mode again.
Acked-by: Michael S. Tsirkin m...@redhat.com
Acked-by: Alex Williamson alex.william...@redhat.com
Signed-off-by: Jan Kiszka jan.kis...@siemens.com
From: Avi Kivity a...@redhat.com
Instead, drop large mappings, which were the reason we dropped shadow.
Signed-off-by: Avi Kivity a...@redhat.com
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 9cafbb4..772d212 100644
---
From: Peter Tyser pty...@xes-inc.com
Previously SPRGs 4-7 were improperly read and written in
kvm_arch_vcpu_ioctl_get_regs() and kvm_arch_vcpu_ioctl_set_regs();
Signed-off-by: Alexander Graf ag...@suse.de
Signed-off-by: Peter Tyser pty...@xes-inc.com
Signed-off-by: Marcelo Tosatti
From: Sedat Dilek sedat.di...@googlemail.com
WARNING: arch/x86/built-in.o(.text+0x1bb74): Section mismatch in reference from
the function kvm_guest_cpu_online() to the function
.cpuinit.text:kvm_guest_cpu_init()
The function kvm_guest_cpu_online() references
the function __cpuinit
From: Marcelo Tosatti mtosa...@redhat.com
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
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To unsubscribe from this list: send the line unsubscribe kvm-commits in
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From: Avi Kivity a...@redhat.com
When emulating real mode, we fake some state:
- tr.base points to a fake vm86 tss
- segment registers are made to conform to vm86 restrictions
change vmx_get_segment() not to expose this fake state to userspace;
instead, return the original state.
From: Avi Kivity a...@redhat.com
When emulating real mode we play with tr hidden state, but leave
tr.selector alone. That works well, except for save/restore, since
loading TR writes it to the hidden state in vmx-rmode.
Fix by also saving and restoring the tr selector; this makes things
more
From: Avi Kivity a...@redhat.com
init_fpu() (which is indirectly called by the fpu switching code) assumes
it is in process context. Rather than makeing init_fpu() use an atomic
allocation, which can cause a task to be killed, make sure the fpu is
already initialized when we enter the run loop.
From: Avi Kivity a...@redhat.com
cpu_count() is used in important places, like vmexit.flat's measuring
loop, yet it is ridiculously slow as it talks to the firmware config
interface.
Speed it up by reading the value from memory.
Signed-off-by: Avi Kivity a...@redhat.com
diff --git
From: Avi Kivity a...@redhat.com
'nr_cpus_done' is not incremented atomically; this has been observed to
cause tests to stall. Fix by using a proper atomic increment.
Signed-off-by: Avi Kivity a...@redhat.com
diff --git a/x86/vmexit.c b/x86/vmexit.c
index 875caa3..ad8ab55 100644
---
From: Avi Kivity a...@redhat.com
We fire off the IPI, but don't wait for the other cpu to pickk up
the function and data before returning.
Fix by making the other cpu ACK the receipt of the IPI (but still
execute the result asynchrously).
Signed-off-by: Avi Kivity a...@redhat.com
diff --git
In Linux kernel HWPoison processing implementation, the virtual
address in processes mapping the error physical memory page is marked
as HWPoison. So that, the further accessing to the virtual
address will kill corresponding processes with SIGBUS.
If the error physical memory page is used by a
qemu_ram_remap() unmaps the specified RAM pages, then re-maps these
pages again. This is used by KVM HWPoison support to clear HWPoisoned
page tables across guest rebooting, so that a new page may be
allocated later to recover the memory error.
Signed-off-by: Huang Ying ying.hu...@intel.com
---
Make __get_user_pages return -EHWPOISON for HWPOISON page only if
FOLL_HWPOISON is specified. With this patch, the interested callers
can distinguish HWPOISON page from general FAULT page, while other
callers will still get -EFAULT for pages, so the user space interface
need not to be changed.
is_hwpoison_address only checks whether the page table entry is
hwpoisoned, regardless the memory page mapped. While
get_user_pages_hwpoison will check both.
QEMU will clear the poisoned page table entry (via unmap/map) to make
it possible to allocate a new memory page for the virtual address
cpu_count() is not valid before smp_init().
Signed-off-by: Avi Kivity a...@redhat.com
---
x86/kvmclock_test.c |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/x86/kvmclock_test.c b/x86/kvmclock_test.c
index 5b14ae2..52a43fb 100644
--- a/x86/kvmclock_test.c
+++
Am 13.01.2011 09:34, Huang Ying wrote:
In Linux kernel HWPoison processing implementation, the virtual
address in processes mapping the error physical memory page is marked
as HWPoison. So that, the further accessing to the virtual
address will kill corresponding processes with SIGBUS.
If
On 01/11/2011 06:19 PM, Stefan Berger wrote:
Hi!
I am currently doing some long-term testing of a device model using
memory mapped IO (TPM TIS) and am seeing some strange errors when the
suspend occurs in the middle of a read operation in the Linux TPM TIS
device driver where the driver
On 01/13/2011 10:42 AM, Huang Ying wrote:
Make __get_user_pages return -EHWPOISON for HWPOISON page only if
FOLL_HWPOISON is specified. With this patch, the interested callers
can distinguish HWPOISON page from general FAULT page, while other
callers will still get -EFAULT for pages, so the
Am 13.01.2011 09:34, Huang Ying wrote:
In Linux kernel HWPoison processing implementation, the virtual
address in processes mapping the error physical memory page is marked
as HWPoison. So that, the further accessing to the virtual
address will kill corresponding processes with SIGBUS.
If
On Wed, Jan 12, 2011 at 12:53:14PM -0800, Linus Torvalds wrote:
On Wed, Jan 12, 2011 at 12:33 PM, Rik van Riel r...@redhat.com wrote:
Now that we have FAULT_FLAG_ALLOW_RETRY, the async
pagefault patches can be a little smaller.
I suspect you do still want a new page flag, to say that
Am 11.01.2011 11:29, Avi Kivity wrote:
Please try out the attached patch.
From f3a6041b5bb3bf7c88f9694a66d7f34be2f78845 Mon Sep 17 00:00:00 2001
From: Avi Kivity a...@redhat.com
Date: Tue, 11 Jan 2011 12:15:54 +0200
Subject: [PATCH] KVM: Initialize fpu state in preemptible context
On 01/13/2011 02:59 PM, Jan Kiszka wrote:
@@ -5351,6 +5351,9 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu,
struct kvm_run *kvm_run)
int r;
sigset_t sigsaved;
+ if (!tsk_used_math(current) init_fpu(current))
+ return -ENOMEM;
+
Could become a rainy day for the
On 01/13/2011 07:21 AM, Rik van Riel wrote:
When running SMP virtual machines, it is possible for one VCPU to be
spinning on a spinlock, while the VCPU that holds the spinlock is not
currently running, because the host scheduler preempted it to run
something else.
Both Intel and AMD CPUs have a
On 01/13/2011 07:27 AM, Rik van Riel wrote:
Instead of sleeping in kvm_vcpu_on_spin, which can cause gigantic
slowdowns of certain workloads, we instead use yield_to to hand
the rest of our timeslice to another vcpu in the same KVM guest.
+ for (pass = 0; pass 2 !yielded; pass++) {
On 01/04/2011 03:14 PM, Avi Kivity wrote:
x86_decode_insn() doesn't return X86EMUL_* values, it returns
EMULATION_* codes. Adjust the check.
Signed-off-by: Avi Kivitya...@redhat.com
---
arch/x86/kvm/x86.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git
On 01/13/2011 08:16 AM, Avi Kivity wrote:
+ for (pass = 0; pass 2 !yielded; pass++) {
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ struct task_struct *task = vcpu-task;
+ if (!pass i last_boosted_vcpu) {
+ i = last_boosted_vcpu;
+ continue;
+ } else if (pass i last_boosted_vcpu)
+ break;
+ if (vcpu ==
The vmexit path on SVM needs to restore the KERNEL_GS_BASE
MSR in order to savely execute the NMI handler. Otherwise a
pending NMI can occur after the STGI instruction and crash
the machine.
This makes it impossible to run perf and kvm in parallel on
an AMD machine in a stable way.
Cc:
Hi Avi, Marcelo,
these two patches finally implement perf-kvm support for AMD machines.
The meat is in the second patch. The first one is an important fix
which, when missing, causes system crashes when NMI happen while in
guest mode. So the first patch should also make it to the various
This patch adds the necessary code to run perf-kvm on AMD
machines.
Signed-off-by: Joerg Roedel joerg.roe...@amd.com
---
arch/x86/kvm/svm.c | 12 ++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 8b9bc72..2415129 100644
On 01/13/2011 05:06 PM, Rik van Riel wrote:
I think the first patch needs some reference counting... I'd move it to
the outermost KVM_RUN loop to reduce the performance impact.
I don't see how refcounting from that other thread could
possibly help, and I now see that the task_struct_cachep
On 01/13/2011 05:22 PM, Joerg Roedel wrote:
The vmexit path on SVM needs to restore the KERNEL_GS_BASE
MSR in order to savely execute the NMI handler. Otherwise a
pending NMI can occur after the STGI instruction and crash
the machine.
This makes it impossible to run perf and kvm in parallel on
On Thu, Jan 13, 2011 at 4:53 AM, Gleb Natapov g...@redhat.com wrote:
I implemented get_user_pages_nowait() on top of your patch. In my testing
it works as expected when used inside KVM. Does this looks OK to you?
It looks reasonable, although I suspect the subtle behavior wrt the
mmap_sem
Am 13.01.2011 16:22, Joerg Roedel wrote:
The vmexit path on SVM needs to restore the KERNEL_GS_BASE
MSR in order to savely execute the NMI handler. Otherwise a
pending NMI can occur after the STGI instruction and crash
the machine.
This makes it impossible to run perf and kvm in parallel on
On Thu, Jan 13, 2011 at 10:42:01AM -0500, Avi Kivity wrote:
On 01/13/2011 05:22 PM, Joerg Roedel wrote:
The vmexit path on SVM needs to restore the KERNEL_GS_BASE
MSR in order to savely execute the NMI handler. Otherwise a
pending NMI can occur after the STGI instruction and crash
the
On Thu, Jan 13, 2011 at 10:48:33AM -0500, Jan Kiszka wrote:
Am 13.01.2011 16:22, Joerg Roedel wrote:
#ifdef CONFIG_X86_64
wrmsrl(MSR_GS_BASE, svm-host.gs_base);
+ wrmsrl(MSR_KERNEL_GS_BASE, current-thread.gs);
#else
loadsegment(fs, svm-host.fs);
#endif
Doesn't this
On 01/11/2011 04:43 PM, Anthony Liguori wrote:
- invalidate all buffers for that block device on machine A after
migration.
* with NFS, just close + reopen the file (and pray that nobody else
has it also opened)
* with block devices: use BLKFLBLK ioctl, and pray that nobody
else
Currently FdMigrationState doesn't support read(), and this patch
introduces it to get response from the other side.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
migration-tcp.c | 15 +++
migration.c | 12
migration.h |3 +++
3 files
Record mmio write event to replay it upon failover.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
exec.c |4
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/exec.c b/exec.c
index 49c28b1..4a171cc 100644
--- a/exec.c
+++ b/exec.c
@@ -33,6 +33,7 @@
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
qemu-char.c |2 +-
qemu_socket.h |1 +
2 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/qemu-char.c b/qemu-char.c
index edc9ad6..737d347 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -2116,7 +2116,7 @@ static
Currently buf size is fixed at 32KB. It would be useful if it could
be flexible.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
hw/hw.h |2 ++
savevm.c | 20 +++-
2 files changed, 21 insertions(+), 1 deletions(-)
diff --git a/hw/hw.h b/hw/hw.h
index
Introduce migrate_ft_trans_put_ready() which kicks the FT transaction
cycle. When ft_mode is on, migrate_fd_put_ready() would open
ft_trans_file and turn on event_tap. To end or cancel FT transaction,
ft_mode and event_tap is turned off. migrate_ft_trans_get_ready() is
called to receive ack
The option looks like, -incoming protocol:address:port,ft_mode
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
migration.c |9 -
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/migration.c b/migration.c
index d4922ce..1822e97 100644
--- a/migration.c
This code implements VM transaction protocol. Like buffered_file, it
sits between savevm and migration layer. With this architecture, VM
transaction protocol is implemented mostly independent from other
existing code.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
Signed-off-by:
To utilize ft_trans_file function, savevm needs interfaces to be
exported.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
hw/hw.h |5 ++
savevm.c | 148 ++
2 files changed, 153 insertions(+), 0 deletions(-)
diff
Hi,
This patch series is a revised version of Kemari for KVM, which
applied comments for the previous post. The current code is based on
qemu.git d03d11260ee2d55579e8b76116e35ccdf5031833.
The changes from v0.2.3 - v0.2.4 are:
- call vm_start() before event_tap_flush_one() to avoid failure in
event-tap function is called only when it is on.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
net.c |9 +
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/net.c b/net.c
index 9ba5be2..1176124 100644
--- a/net.c
+++ b/net.c
@@ -36,6 +36,7 @@
#include
For regular migration inuse == 0 always as requests are flushed before
save. However, event-tap log when enabled introduces an extra queue
for requests which is not being flushed, thus the last inuse requests
are left in the event-tap queue. Move the last_avail_idx value sent
to the remote back
Introduce qemu_savevm_state_{begin,commit} to send the memory and
device info together, while avoiding cancelling memory state tracking.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
savevm.c | 88 ++
sysemu.h |
Record ioport event to replay it upon failover.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
ioport.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/ioport.c b/ioport.c
index aa4188a..74aebf5 100644
--- a/ioport.c
+++ b/ioport.c
@@ -27,6 +27,7 @@
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
vl.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/vl.c b/vl.c
index 8bbb785..9faeb27 100644
--- a/vl.c
+++ b/vl.c
@@ -162,6 +162,7 @@ int main(int argc, char **argv)
#include qemu-queue.h
#include
When -k option is set to migrate command, it will turn on ft_mode to
start FT migration mode (Kemari).
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
hmp-commands.hx |7 ---
migration.c |3 +++
qmp-commands.hx |7 ---
3 files changed, 11 insertions(+), 6
Introduce skip_header parameter to qemu_loadvm_state() so that it can
be called iteratively without reading the header.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
migration.c |2 +-
savevm.c| 24 +---
sysemu.h|2 +-
3 files changed, 15
Make deleting handlers robust against deletion of any elements in a
handler by using a deleted flag like in file descriptors.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
vl.c | 13 +
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/vl.c b/vl.c
event-tap function is called only when it is on, and requests sent
from device emulators.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
block.c | 11 +++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/block.c b/block.c
index ff2795b..85bd8b8 100644
When ft_mode is set in the header, tcp_accept_incoming_migration()
sets ft_trans_incoming() as a callback, and call
qemu_file_get_notify() to receive FT transaction iteratively. We also
need a hack no to close fd before moving to ft_transaction mode, so
that we can reuse the fd for it.
event-tap controls when to start FT transaction, and provides proxy
functions to called from net/block devices. While FT transaction, it
queues up net/block requests, and flush them when the transaction gets
completed.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
Signed-off-by:
Hi all,
I want to compile qemu 0.13.0 against a 2.6.29.4 kernel. I found no
kvm-kmod sources for this kernel. Do I need them?
I tried to compile qemu but it fails for the virtio pci because the struct
kvm_irq_routing_entry was not found. But this struct is existing in the kvm
sources within
On Thu, Jan 13, 2011 at 7:43 AM, Linus Torvalds
torva...@linux-foundation.org wrote:
On Thu, Jan 13, 2011 at 4:53 AM, Gleb Natapov g...@redhat.com wrote:
I implemented get_user_pages_nowait() on top of your patch. In my testing
it works as expected when used inside KVM. Does this looks OK to
On 01/13/2011 05:51 PM, Roedel, Joerg wrote:
On Thu, Jan 13, 2011 at 10:42:01AM -0500, Avi Kivity wrote:
On 01/13/2011 05:22 PM, Joerg Roedel wrote:
The vmexit path on SVM needs to restore the KERNEL_GS_BASE
MSR in order to savely execute the NMI handler. Otherwise a
pending NMI
On Thu, Jan 13, 2011 at 8:34 AM, Huang Ying ying.hu...@intel.com wrote:
qemu_ram_remap() unmaps the specified RAM pages, then re-maps these
pages again. This is used by KVM HWPoison support to clear HWPoisoned
page tables across guest rebooting, so that a new page may be
allocated later to
On Thu, Jan 13, 2011 at 5:15 PM, Yoshiaki Tamura
tamura.yoshi...@lab.ntt.co.jp wrote:
Introduce qemu_savevm_state_{begin,commit} to send the memory and
device info together, while avoiding cancelling memory state tracking.
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
On Thu, Jan 13, 2011 at 5:15 PM, Yoshiaki Tamura
tamura.yoshi...@lab.ntt.co.jp wrote:
When -k option is set to migrate command, it will turn on ft_mode to
start FT migration mode (Kemari).
Signed-off-by: Yoshiaki Tamura tamura.yoshi...@lab.ntt.co.jp
---
hmp-commands.hx | 7 ---
From: Amos Kong ak...@redhat.com
KVM guest always pauses on NOSPACE error, this test
just repeatedly extend guest disk space and resume guest
from paused status.
Changes from v1:
- Use the most current KVM test API
- Use the autotest API for external commands execution
- Instead of chaining
From: Amos Kong ak...@redhat.com
KVM guest always pauses on NOSPACE error, this test
just repeatedly extend guest disk space and resume guest
from paused status.
Changes from v2:
- Oops! Forgot to update tests_base.cfg.sample
Changes from v1:
- Use the most current KVM test API
- Use the
On Thu, Jan 13, 2011 at 10:45:38AM -0500, Jesse Gross wrote:
On Thu, Jan 13, 2011 at 1:47 AM, Simon Horman ho...@verge.net.au wrote:
On Mon, Jan 10, 2011 at 06:31:55PM +0900, Simon Horman wrote:
On Fri, Jan 07, 2011 at 10:23:58AM +0900, Simon Horman wrote:
On Thu, Jan 06, 2011 at
On Thu, 2011-01-13 at 18:43 +0800, Avi Kivity wrote:
On 01/13/2011 10:42 AM, Huang Ying wrote:
Make __get_user_pages return -EHWPOISON for HWPOISON page only if
FOLL_HWPOISON is specified. With this patch, the interested callers
can distinguish HWPOISON page from general FAULT page, while
On Thu, 2011-01-13 at 17:01 +0800, Jan Kiszka wrote:
Am 13.01.2011 09:34, Huang Ying wrote:
In Linux kernel HWPoison processing implementation, the virtual
address in processes mapping the error physical memory page is marked
as HWPoison. So that, the further accessing to the virtual
On Fri, Jan 14, 2011 at 08:41:36AM +0900, Simon Horman wrote:
On Thu, Jan 13, 2011 at 10:45:38AM -0500, Jesse Gross wrote:
On Thu, Jan 13, 2011 at 1:47 AM, Simon Horman ho...@verge.net.au wrote:
On Mon, Jan 10, 2011 at 06:31:55PM +0900, Simon Horman wrote:
On Fri, Jan 07, 2011 at
- Original Message -
From: Amos Kong ak...@redhat.com
KVM guest always pauses on NOSPACE error, this test
just repeatedly extend guest disk space and resume guest
from paused status.
Changes from v2:
- Oops! Forgot to update tests_base.cfg.sample
Changes from v1:
- Use the
On Fri, Jan 14, 2011 at 06:58:18AM +0200, Michael S. Tsirkin wrote:
On Fri, Jan 14, 2011 at 08:41:36AM +0900, Simon Horman wrote:
On Thu, Jan 13, 2011 at 10:45:38AM -0500, Jesse Gross wrote:
On Thu, Jan 13, 2011 at 1:47 AM, Simon Horman ho...@verge.net.au wrote:
On Mon, Jan 10, 2011 at
On Fri, Jan 14, 2011 at 03:35:28PM +0900, Simon Horman wrote:
On Fri, Jan 14, 2011 at 06:58:18AM +0200, Michael S. Tsirkin wrote:
On Fri, Jan 14, 2011 at 08:41:36AM +0900, Simon Horman wrote:
On Thu, Jan 13, 2011 at 10:45:38AM -0500, Jesse Gross wrote:
On Thu, Jan 13, 2011 at 1:47 AM,
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