Bugs item #2926083, was opened at 2010-01-05 08:16
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As suggested by Jason, timeout value can be various if different
guest CPU number specified. This patch fixs the problem.
Signed-off-by: Yolkfull Chow yz...@redhat.com
---
client/tests/kvm/tests/linux_s3.py |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git
Signed-off-by: Yolkfull Chow yz...@redhat.com
---
client/tests/kvm/tests/guest_s4.py |3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/client/tests/kvm/tests/guest_s4.py
b/client/tests/kvm/tests/guest_s4.py
index f08b9d2..82572f6 100644
---
Now, if we inject a fatal MCE into guest OS, for example Linux, Linux
will go panic and then reboot. But if we inject another MCE now,
system will reset directly instead of go panic firstly, because
MCG_STATUS.MCIP is set to 1 and not cleared after reboot. This is does
not follow the behavior in
Bugs item #2926083, was opened at 2010-01-05 10:16
Message generated for change (Comment added) made by avik
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When found a error hva, should not return PAGE_SIZE but the level...
Also clean up the coding style of the following loop.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/kvm/mmu.c |6 ++
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/mmu.c
Then the callback can provide the maximum supported large page level, which
is more flexible.
Also move the gb page support into x86_64 specific.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/include/asm/kvm_host.h |2 +-
arch/x86/kvm/svm.c |6 +++---
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/include/asm/vmx.h |1 +
arch/x86/kvm/mmu.c |8 +---
arch/x86/kvm/vmx.c | 11 ++-
3 files changed, 16 insertions(+), 4 deletions(-)
diff --git a/arch/x86/include/asm/vmx.h
Subject: Re: pci-stub error and MSI-X for KVM guest
* Fischer, Anna (anna.fisc...@hp.com) wrote:
Ouch. Can you do debuginfo-install qemu-system-x86 to get the
debug
packages, then attach gdb to the QEMU process so that when you do
lspci
-v
in the guest (assuming this is QEMU
On 01/05/2010 12:12 PM, Sheng Yang wrote:
Signed-off-by: Sheng Yangsh...@linux.intel.com
---
arch/x86/include/asm/vmx.h |1 +
arch/x86/kvm/mmu.c |8 +---
arch/x86/kvm/vmx.c | 11 ++-
3 files changed, 16 insertions(+), 4 deletions(-)
diff --git
--- a/qemu-kvm-x86.c
+++ b/qemu-kvm-x86.c
@@ -1015,6 +1015,7 @@ void kvm_arch_load_regs(CPUState *env)
#endif
set_msr_entry(msrs[n++], MSR_KVM_SYSTEM_TIME, env-system_time_msr);
set_msr_entry(msrs[n++], MSR_KVM_WALL_CLOCK, env-wall_clock_msr);
+set_msr_entry(msrs[n++],
On 01/05/2010 10:34 AM, Huang Ying wrote:
Now, if we inject a fatal MCE into guest OS, for example Linux, Linux
will go panic and then reboot. But if we inject another MCE now,
system will reset directly instead of go panic firstly, because
MCG_STATUS.MCIP is set to 1 and not cleared after
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We can use them in x86.c and vmx.c now...
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/kvm/mmu.c |4
arch/x86/kvm/mmu.h |4
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index c43c2ab..15daf3c 100644
---
Then the callback can provide the maximum supported large page level, which
is more flexible.
Also move the gb page support into x86_64 specific.
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/include/asm/kvm_host.h |2 +-
arch/x86/kvm/svm.c |6 +++---
When found a error hva, should not return PAGE_SIZE but the level...
Also clean up the coding style of the following loop.
Cc: sta...@kernel.org
Signed-off-by: Sheng Yang sh...@linux.intel.com
---
arch/x86/kvm/mmu.c |6 ++
1 files changed, 2 insertions(+), 4 deletions(-)
diff --git
If guest can detect that it runs in non-preemptable context it can
handle async PFs at any time, so let host know that it can send async
PF even if guest cpu is not in userspace.
Signed-off-by: Gleb Natapov g...@redhat.com
---
arch/x86/include/asm/kvm_host.h |1 +
If async page fault is received by idle task or when preemp_count is
not zero guest cannot reschedule, so do sti; hlt and wait for page to be
ready. vcpu can still process interrupts while it waits for the page to
be ready.
Signed-off-by: Gleb Natapov g...@redhat.com
---
arch/x86/kernel/kvm.c |
Signed-off-by: Gleb Natapov g...@redhat.com
---
arch/x86/include/asm/kvm_para.h |5
arch/x86/kernel/kvm.c | 49 +++
arch/x86/kernel/smpboot.c |3 ++
include/linux/kvm_para.h|2 +
4 files changed, 59 insertions(+), 0
If guest access swapped out memory do not swap it in from vcpu thread
context. Setup slow work to do swapping and send async page fault to
a guest.
Allow async page fault injection only when guest is in user mode since
otherwise guest may be in non-sleepable context and will not be able to
Allow paravirtualized guest to do special handling for some page faults.
The patch adds one 'if' to do_page_fault() function. The call is patched
out when running on physical HW. I ran kernbech on the kernel with and
without that additional 'if' and result were rawly the same:
With 'if':
Signed-off-by: Gleb Natapov g...@redhat.com
---
arch/x86/include/asm/kvm_host.h |3 ++
arch/x86/include/asm/kvm_para.h |4 +++
arch/x86/kvm/x86.c | 49 +-
include/linux/kvm.h |1 +
4 files changed, 55 insertions(+), 2
This patch add get_user_pages() variant that only succeeds if getting
a reference to a page doesn't require major fault.
Reviewed-by: Rik van Riel r...@redhat.com
Signed-off-by: Gleb Natapov g...@redhat.com
---
fs/ncpfs/mmap.c|2 ++
include/linux/mm.h |5 +
mm/filemap.c |
KVM virtualizes guest memory by means of shadow pages or HW assistance
like NPT/EPT. Not all memory used by a guest is mapped into the guest
address space or even present in a host memory at any given time.
When vcpu tries to access memory page that is not mapped into the guest
address space KVM
KVM will use it to try and find a page without falling back to slow
gup. That is why get_user_pages_fast() is not enough.
Signed-off-by: Gleb Natapov g...@redhat.com
---
arch/x86/mm/gup.c |2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/arch/x86/mm/gup.c
Async PF also needs to hook into smp_prepare_boot_cpu so move the hook
into generic code.
Signed-off-by: Gleb Natapov g...@redhat.com
---
arch/x86/include/asm/kvm_para.h |1 +
arch/x86/kernel/kvm.c | 11 +++
arch/x86/kernel/kvmclock.c | 13 +
3 files
When page is swapped in it is mapped into guest memory only after guest
tries to access it again and generate another fault. To save this fault
we can map it immediately since we know that guest is going to access
the page.
Signed-off-by: Gleb Natapov g...@redhat.com
---
Signed-off-by: Gleb Natapov g...@redhat.com
---
arch/x86/kvm/mmu.c |8 +++-
1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 9fd29cb..7945abf 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2204,7 +2204,13 @@ static
On Tue, Jan 5, 2010 at 11:12 PM, Gleb Natapov g...@redhat.com wrote:
KVM virtualizes guest memory by means of shadow pages or HW assistance
like NPT/EPT. Not all memory used by a guest is mapped into the guest
address space or even present in a host memory at any given time.
When vcpu tries to
Bugs item #2926083, was opened at 2010-01-05 08:16
Message generated for change (Comment added) made by bakaproject
You can respond by visiting:
https://sourceforge.net/tracker/?func=detailatid=893831aid=2926083group_id=180599
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On 01/05/2010 10:05 AM, Jun Koi wrote:
On Tue, Jan 5, 2010 at 11:12 PM, Gleb Natapovg...@redhat.com wrote:
KVM virtualizes guest memory by means of shadow pages or HW assistance
like NPT/EPT. Not all memory used by a guest is mapped into the guest
address space or even present in a host memory
On 01/05/2010 05:05 PM, Jun Koi wrote:
Is it true that to make this work, we will need a (PV) kernel driver
for each guest OS (Windows, Linux, ...)?
It's partially usable even without guest modifications; while servicing
a host page fault we can still deliver interrupts to the guest
Here's an old patch of mine that switches device assignement to use msix
bits in qemu. It bitrotted so needs to be refreshed, reposting here in
case anyone wants to use it as starting point for pci assignment
cleanup.
Main change this would be needed is that msix upstream does not have a
flag to
Hi all,
I think I'm experiencing a regression with the new qemu-kvm-0.12.1.2
release compared to qemu-kvm-0.12.1.1 with a WinXP guest on Linux.
I can boot my WinXP guest without a problem under qemu-kvm-0.12.1.1,
however under qemu-kvm-0.12.1.2 a couple of seconds after reaching the
login
On Mon, Dec 14, 2009 at 1:16 PM, Patrick McHardy ka...@trash.net wrote:
Adam Huffman wrote:
On Thu, Dec 10, 2009 at 11:01 AM, Patrick McHardy ka...@trash.net wrote:
Eric Dumazet wrote:
Le 09/12/2009 16:11, Avi Kivity a écrit :
On 12/09/2009 03:46 PM, Adam Huffman wrote:
I've been seeing lots
On Sun, Jan 03, 2010 at 03:14:27AM +0100, Alexander Graf wrote:
Commit 18657960237322b8f6ba84938d27524634212aaf apparently broke PPC Book3S
compilation. This patch tries to mechanically fix it.
Marcelo, please look over it if I'm doing the right thing.
Signed-off-by: Alexander Graf
On Sun, Jan 03, 2010 at 03:09:52AM +0100, Alexander Graf wrote:
Hi Marcelo,
On 30.12.2009, at 16:40, Giuseppe Falsetti wrote:
Hi,
I get this error when compile the git tree virt/kvm/kvm.git next
My machine is a Xserve G5 DUAL processor, Lenny with gcc-4.3.2
HOSTCC
On Sun, Dec 27, 2009 at 12:13:00PM +0200, Avi Kivity wrote:
On 12/17/2009 05:35 PM, Oscon wrote:
Hello!
I can't register new account in bugzilla.kernel.org. / my ISP's spamfilter
problem (?) maybe./
--
I sent this mail to Greg KH (2.6.27.y maintainer), he
Avi Kivity wrote:
On 01/05/2010 02:56 PM, Rusty Russell wrote:
Those should be the same for any sane interface. They are for classical
disk devices with larger block sizes (MO, s390 dasd) and also for the
now appearing 4k sector scsi disks. But in the ide world people are
concerned about
Avi Kivity wrote:
Physical block size is the what the logical block size would have been
is software didn't suck. In theory they should be the same, but since
compatibility reaons clamp the logical block size to 512, they have to
differ. A disk may have a physical block size of 4096 and
On Wed, Dec 30, 2009 at 06:25:42PM +0200, Avi Kivity wrote:
If the guest fpu is loaded, there is nothing interesing about cr0.ts; let
the guest play with it as it will. This makes context switches between fpu
intensive guest processes faster, as we won't trap the clts and cr0 write
On Wed, Dec 30, 2009 at 06:25:41PM +0200, Avi Kivity wrote:
Defer fpu deactivation as much as possible - if the guest fpu is loaded, keep
it loaded until the next heavyweight exit (where we are forced to unload it).
This reduces unnecessary exits.
We also defer fpu activation on clts; while
On 01/06/2010 02:25 AM, Marcelo Tosatti wrote:
On Wed, Dec 30, 2009 at 06:25:41PM +0200, Avi Kivity wrote:
Defer fpu deactivation as much as possible - if the guest fpu is loaded, keep
it loaded until the next heavyweight exit (where we are forced to unload it).
This reduces unnecessary
Add image_copy subtest for convenient KVM functional testing.
The target image will be copied into the linked directory if link 'images'
is created, and copied to the directory specified in config file otherwise.
Signed-off-by: Yolkfull Chow yz...@redhat.com
---
client/tests/kvm/kvm_utils.py
On 01/06/2010 05:18 AM, Avi Kivity wrote:
+static void svm_fpu_deactivate(struct kvm_vcpu *vcpu)
+{
+struct vcpu_svm *svm = to_svm(vcpu);
+
+if (npt_enabled) {
+/* hack: npt requires active fpu at this time */
+vcpu-fpu_active = 1;
+return;
+}
Why is that ?
The explanation of write_emulated is confused with
that of read_emulated. This patch fix it.
Signed-off-by: Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp
---
arch/x86/include/asm/kvm_emulate.h |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git
Sorry but I had mistakenly broken the patch,
so this does not apply cleanly, I'll repair this later.
Takuya Yoshikawa wrote:
The explanation of write_emulated is confused with
that of read_emulated. This patch fix it.
Signed-off-by: Takuya Yoshikawa yoshikawa.tak...@oss.ntt.co.jp
---
Hi, Avi,
On Tue, 2010-01-05 at 18:50 +0800, Avi Kivity wrote:
On 01/05/2010 10:34 AM, Huang Ying wrote:
Now, if we inject a fatal MCE into guest OS, for example Linux, Linux
will go panic and then reboot. But if we inject another MCE now,
system will reset directly instead of go panic
On Sun, Jan 03, 2010 at 03:09:52AM +0100, Alexander Graf wrote:
Hi Marcelo,
On 30.12.2009, at 16:40, Giuseppe Falsetti wrote:
Hi,
I get this error when compile the git tree virt/kvm/kvm.git next
My machine is a Xserve G5 DUAL processor, Lenny with gcc-4.3.2
HOSTCC
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