e are
adding more message types in our VSM implementation) so fix it to
reflect the specification.
Signed-off-by: Siddharth Chandrasekaran
---
include/hw/hyperv/hyperv-proto.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/hw/hyperv/hyperv-proto.h b/include/hw/h
On Tue, Jun 08, 2021 at 12:53:17PM +0200, Siddharth Chandrasekaran wrote:
> On Tue, Jun 08, 2021 at 10:48:53AM +0200, Alexander Graf wrote:
> > On 24.05.21 22:01, Siddharth Chandrasekaran wrote:
> > > Check and enable user space MSR filtering capability and handle new
KVM_CAP_HYPERV is a VM ioctl and can be cached at kvm_arch_init()
instead of performing an ioctl each time in hyperv_enabled() which is
called foreach vCPU. Apart from that, this variable will come in handy
in a subsequent patch.
Signed-off-by: Siddharth Chandrasekaran
---
target/i386/kvm/kvm.c
Check and enable user space MSR filtering capability and handle new exit
reason KVM_EXIT_X86_WRMSR. This will be used in a follow up patch to
implement hyper-v overlay pages.
Signed-off-by: Siddharth Chandrasekaran
---
target/i386/kvm/kvm.c | 67 +++
1
bounce back
control KVM. This bounce back is needed as KVM may have to write data
into the newly overlaid page.
Signed-off-by: Siddharth Chandrasekaran
---
hw/hyperv/hyperv.c | 10 -
include/hw/hyperv/hyperv.h | 5 +++
target/i386/kvm/hyperv.c | 91
the checks for this bit is moved into the unified overlaying
method hyperv_overlay_update() so the caller does not need to care about
it.
Signed-off-by: Siddharth Chandrasekaran
---
hw/hyperv/hyperv.c | 103 -
include/hw/hyperv/hyperv.h | 9
targe
: Siddharth Chandrasekaran
---
hw/hyperv/hyperv.c | 15 +--
include/hw/hyperv/hyperv.h | 1 +
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/hw/hyperv/hyperv.c b/hw/hyperv/hyperv.c
index 8d09206702..ac45e8e139 100644
--- a/hw/hyperv/hyperv.c
+++ b/hw/hyperv
off-by: Siddharth Chandrasekaran
---
target/i386/kvm/kvm.c | 12
target/i386/kvm/kvm_i386.h | 1 +
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index c676ee8b38..03202bd06b 100644
--- a/target/i386/kvm/kvm.c
+++ b/targe
call page set when guest_os_id is not set.
- Address Alex's comments:
- Move filtering logic to 6/6 so we don't break bisection.
- Reword comment on filters
- Provide a default RDMSR handler
- Set run->msr.error = 1 to retain existing behaviour
Siddharth Cha
On Tue, Jun 08, 2021 at 11:02:45AM +0200, Alexander Graf wrote:
> On 24.05.21 22:02, Siddharth Chandrasekaran wrote:
> > Hypercall code page is specified in the Hyper-V TLFS to be an overlay
> > page, ie., guest chooses a GPA and the host _places_ a page at that
> > location,
On Tue, Jun 08, 2021 at 10:48:53AM +0200, Alexander Graf wrote:
> On 24.05.21 22:01, Siddharth Chandrasekaran wrote:
> > Check and enable user space MSR filtering capability and handle new exit
> > reason KVM_EXIT_X86_WRMSR. This will be used in a follow up patch to
> > impl
A reminder email to bring these up on your inboxes :). Would love
to hear your thoughts on them.
~ Sid.
Amazon Development Center Germany GmbH
Krausenstr. 38
10117 Berlin
Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss
Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B
Sitz: B
On Thu, May 27, 2021 at 01:36:37PM +0200, Claudio Fontana wrote:
> Just to check whether this is actually the issue we are talking about,
> Sid et al, could you try this?
>
>
> diff --git a/target/i386/cpu.c b/target/i386/cpu.c
> index c496bfa1c2..810c46281b 100644
> --- a/target/i386/cpu.c
> +++
bounce back
control KVM. This bounce back is needed as KVM may have to write data
into the newly overlaid page.
Signed-off-by: Siddharth Chandrasekaran
---
hw/hyperv/hyperv.c | 10 -
include/hw/hyperv/hyperv.h | 5 +++
target/i386/kvm/hyperv.c | 84
Check and enable user space MSR filtering capability and handle new exit
reason KVM_EXIT_X86_WRMSR. This will be used in a follow up patch to
implement hyper-v overlay pages.
Signed-off-by: Siddharth Chandrasekaran
---
target/i386/kvm/kvm.c | 72 +++
1
KVM_CAP_HYPERV is a VM ioctl and can be cached at kvm_arch_init()
instead of performing an ioctl each time in hyperv_enabled() which is
called foreach vCPU. Apart from that, this variable will come in handy
in a subsequent patch.
Signed-off-by: Siddharth Chandrasekaran
---
target/i386/kvm/kvm.c
: Siddharth Chandrasekaran
---
hw/hyperv/hyperv.c | 15 +--
include/hw/hyperv/hyperv.h | 1 +
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/hw/hyperv/hyperv.c b/hw/hyperv/hyperv.c
index 8d09206702..ac45e8e139 100644
--- a/hw/hyperv/hyperv.c
+++ b/hw/hyperv
the checks for this bit is moved into the unified overlaying
method hyperv_overlay_update() so the caller does not need to care about
it.
Signed-off-by: Siddharth Chandrasekaran
---
hw/hyperv/hyperv.c | 103 -
include/hw/hyperv/hyperv.h | 9
targe
off-by: Siddharth Chandrasekaran
---
target/i386/kvm/kvm.c | 12
target/i386/kvm/kvm_i386.h | 1 +
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c
index d972eb4705..d19a2913fd 100644
--- a/target/i386/kvm/kvm.c
+++ b/targe
t was overlaid here. Additionally it does some
housekeeping here and there.
P.S. This is a follow up to the my initial approach of handling this in
kernel, see [1] for discussions.
~ Sid.
[1]: https://lore.kernel.org/kvm/20210423090333.21910-1-sid...@amazon.de/
Siddharth Chandrasekaran (6):
hy
After a rebase to QEMU master, I am having trouble booting windows VMs.
Git bisect indicates commit f5cc5a5c1686 ("i386: split cpu accelerators
from cpu.c, using AccelCPUClass") to have introduced the issue. I spent
some time looking at into it yesterday without much luck.
Steps to reproduce:
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