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x86 queue, 2021-07-13

Browse source 
Bug fixes:
 * numa: Parse initiator= attribute before cpus= attribute
   (Michal Privoznik)
 * Fix CPUID level for AMD (Zhenwei Pi)
 * Suppress CPUID leaves not defined by the CPU vendor
   (Michael Roth)
 
 Cleanup:
 * Hyper-V feature handling cleanup (Vitaly Kuznetsov)
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Merge remote-tracking branch 'remotes/ehabkost-gl/tags/x86-next-pull-request' into staging

x86 queue, 2021-07-13

Bug fixes:
* numa: Parse initiator= attribute before cpus= attribute
  (Michal Privoznik)
* Fix CPUID level for AMD (Zhenwei Pi)
* Suppress CPUID leaves not defined by the CPU vendor
  (Michael Roth)

Cleanup:
* Hyper-V feature handling cleanup (Vitaly Kuznetsov)

# gpg: Signature made Tue 13 Jul 2021 17:09:01 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost-gl/tags/x86-next-pull-request:
  numa: Parse initiator= attribute before cpus= attribute
  numa: Report expected initiator
  target/i386: Fix cpuid level for AMD
  target/i386: suppress CPUID leaves not defined by the CPU vendor
  i386: Hyper-V SynIC requires POST_MESSAGES/SIGNAL_EVENTS privileges
  i386: HV_HYPERCALL_AVAILABLE privilege bit is always needed
  i386: kill off hv_cpuid_check_and_set()
  i386: expand Hyper-V features during CPU feature expansion time
  i386: make hyperv_expand_features() return bool
  i386: hardcode supported eVMCS version to '1'
  i386: clarify 'hv-passthrough' behavior

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2021-07-14 12:00:56 +01:00
commit 4aa2454d94
10 changed files with 172 additions and 111 deletions
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9
docs/hyperv.txt
View file

@ -170,7 +170,7 @@ Recommended: hv-frequencies
3.16. hv-evmcs
===============
The enlightenment is nested specific, it targets Hyper-V on KVM guests. When
enabled, it provides Enlightened VMCS feature to the guest. The feature
enabled, it provides Enlightened VMCS version 1 feature to the guest. The feature
implements paravirtualized protocol between L0 (KVM) and L1 (Hyper-V)
hypervisors making L2 exits to the hypervisor faster. The feature is Intel-only.
Note: some virtualization features (e.g. Posted Interrupts) are disabled when
@ -209,8 +209,11 @@ In some cases (e.g. during development) it may make sense to use QEMU in
'pass-through' mode and give Windows guests all enlightenments currently
supported by KVM. This pass-through mode is enabled by "hv-passthrough" CPU
flag.
Note: enabling this flag effectively prevents migration as supported features
may differ between target and destination.
Note: "hv-passthrough" flag only enables enlightenments which are known to QEMU
(have corresponding "hv-*" flag) and copies "hv-spinlocks="/"hv-vendor-id="
values from KVM to QEMU. "hv-passthrough" overrides all other "hv-*" settings on
the command line. Also, enabling this flag effectively prevents migration as the
list of enabled enlightenments may differ between target and destination hosts.
4. Useful links