Roman Kagan writes:
> On Fri, Jan 25, 2019 at 02:46:42PM +0100, Vitaly Kuznetsov wrote:
>> Roman Kagan writes:
>>
>> > On Fri, Jan 25, 2019 at 12:41:51PM +0100, Vitaly Kuznetsov wrote:
>> >> In many case we just want to give Windows guests all currently su
Eduardo Habkost writes:
>
> If libvirt is involved, it's much simpler and safer to use
> something like , which generates a
> migration-safe CPU configuration based on the current host. Live
> migration support with "-cpu host" is only useful for experiments
> and carefully controlled environmen
"Dr. David Alan Gilbert" writes:
> I'm not sure what the equivalent bear traps are in the Hyper-V world,
> but I'd be surprised if there weren't any; for example what happens
> when someone upgrades one of their hosts to some minor version that
> adds/removes a feature?
Here we're talking about
no-re...@patchew.org writes:
> === OUTPUT BEGIN ===
> 1/8 Checking commit 345a0718e21e (Update linux headers (5.0-rc2))
> WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
> #1646:
> new file mode 100644
>
> ERROR: code indent should never use tabs
> #3980: FILE: scripts/u
5 and EPYC/EPYC-IBPB cpu models.
Signed-off-by: Vitaly Kuznetsov
---
target/i386/cpu.c | 8
1 file changed, 8 insertions(+)
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 677a3bd5fb..eb8f9079a6 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -2766,6 +2766,8 @@ s
Vitaly Kuznetsov writes:
> Eduardo Habkost writes:
>
>> On Wed, Dec 19, 2018 at 06:25:06PM +0100, Vitaly Kuznetsov wrote:
>>> Eduardo Habkost writes:
>>>
>>> > On Mon, Dec 03, 2018 at 03:17:06PM +0100, Vitaly Kuznetsov wrote:
>>> >> Ed
5 and EPYC/EPYC-IBPB cpu models.
Signed-off-by: Vitaly Kuznetsov
---
Changes since v1:
- add npt=off,nrip-save=off to pc_compat_3_1 [Eduardo Habkost]
---
hw/i386/pc.c | 8
target/i386/cpu.c | 8
2 files changed, 16 insertions(+)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
Ack, thanks for the bisect! It seems something was overlooked when we
did host/guest mmu split. I'll try to investigate.
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https://bugs.launchpad.net/bugs/1813165
Title:
KVM internal er
Thomas, Albert, David,
I'm having hard times trying to reproduce the issue in my environment;
could you please provide your qemu command lines for both L0 and L1? It
would also be great if you could try to come up with some 'minimal'
configuration (my guess is that in L1 having just "qemu-system-x
Thank you David, I see the issue now.
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https://bugs.launchpad.net/bugs/1813165
Title:
KVM internal error. Suberror: 1 emulation failure
Status in QEMU:
New
Bug description:
Hello
ONFIG_SYNDBG builds.
Leave an 'assert' sentinel in hyperv_feature_supported() making sure there
are no 'holes' or improperly defined features in 'kvm_hyperv_properties'.
Fixes: d8701185f40c ("hw: hyperv: Initial commit for Synthetic Debugging
device"
While hyperv.rst already has all currently implemented Hyper-V
enlightenments documented, it may be unclear what is the recommended set to
achieve the best result. Add the corresponding section to the doc.
Signed-off-by: Vitaly Kuznetsov
---
docs/system/i386/hyperv.rst | 30
!CONFIG_SYNDBG.
Fix both issues; exclude 'hv-syndbg' from 'hv-passthrough' and don't allow
to turn on 'hv-syndbg' for !CONFIG_SYNDBG builds.
Vitaly Kuznetsov (3):
i386: Fix conditional CONFIG_SYNDBG enablement
i386: Exclude 'hv-syndbg
e it as
one-off to skip 'hv-syndbg' when enabling features in 'hv-passthrough'
mode. Note, "-cpu host,hv-passthrough,hv-syndbg" can still be used if
needed.
As both 'hv-passthrough' and 'hv-syndbg' are debug features, the change
should not
Zhao Liu writes:
> Hi Vitaly,
>
> On Tue, Mar 05, 2024 at 05:42:04PM +0100, Vitaly Kuznetsov wrote:
>> Date: Tue, 5 Mar 2024 17:42:04 +0100
>> From: Vitaly Kuznetsov
>> Subject: [PATCH RESEND v3 3/3] docs/system: Add recommendations to Hyper-V
>> enlighten
s SynIC state
does not get updated so often (and async_safe_run_on_cpu() is a big hammer
anyways).
Reported-by: Jan Richter
Signed-off-by: Vitaly Kuznetsov
---
target/i386/kvm/hyperv.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/target/i386/kvm/hyperv.c b/target/i386/kvm/hyperv.c
ONFIG_SYNDBG builds.
Leave an 'assert' sentinel in hyperv_feature_supported() making sure there
are no 'holes' or improperly defined features in 'kvm_hyperv_properties'.
Fixes: d8701185f40c ("hw: hyperv: Initial commit for Synthetic Debugging
device"
nected issues:
- 'hv-passthrough' enables 'hv-syndbg' and this is undesired.
- 'hv-syndbg's support by KVM is detected incorrectly when !CONFIG_SYNDBG.
Fix both issues; exclude 'hv-syndbg' from 'hv-passthrough' and don't allow
to turn on
e it as
one-off to skip 'hv-syndbg' when enabling features in 'hv-passthrough'
mode. Note, "-cpu host,hv-passthrough,hv-syndbg" can still be used if
needed.
As both 'hv-passthrough' and 'hv-syndbg' are debug features, the change
should not
While hyperv.rst already has all currently implemented Hyper-V
enlightenments documented, it may be unclear what is the recommended set to
achieve the best result. Add the corresponding section to the doc.
Signed-off-by: Vitaly Kuznetsov
---
docs/system/i386/hyperv.rst | 30
Cc'ing Max :-) At first glance the condition in vmx_set_nested_state()
is correct so I guess we either have a stale
KVM_STATE_NESTED_RUN_PENDING when in SMM or stale smm.flags when outside
of it...
Philippe Mathieu-Daudé writes:
> Cc'ing Vitaly.
>
> On 26/10/23 07:49, Eiichi Tsukata wrote:
>> Hi
Eiichi Tsukata writes:
> FYI: The EINVAL in vmx_set_nested_state() is caused by the following
> condition:
> * vcpu->arch.hflags == 0
> * kvm_state->hdr.vmx.smm.flags == KVM_STATE_NESTED_SMM_VMXON
This is a weird state indeed,
'vcpu->arch.hflags == 0' means we're not in SMM and not in guest mo
Eiichi Tsukata wrote:
>>
>> Hi all, appreciate any comments or feedbacks on the patch.
>>
>> Thanks,
>> Eiichi
>>
>>> On Nov 1, 2023, at 23:04, Vitaly Kuznetsov wrote:
>>>
>>> Eiichi Tsukata writes:
>>>
>>
Vitaly Kuznetsov writes:
> Changes since 'RESEND v2':
> - Included 'docs/system: Add recommendations to Hyper-V enlightenments doc'
> in the set as it also requires a "RESEND")
Ping)
>
> Hyper-V Gen1 guests are getting stuck on boot when 'hv
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