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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2021-06-08 14:08:10 +0200 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2021-07-13 09:13:28 -0400 |
| commit | 00c1b316edb33f2efb0775c2983bc5348c86529d (patch) | |
| tree | bae767dca65a2c0e6c62630ef7f39c52798487dc /docs/hyperv.txt | |
| parent | eca73713358f7abb18f15c026ff4267b51746992 (diff) | |
| download | qemu-00c1b316edb33f2efb0775c2983bc5348c86529d.zip qemu-00c1b316edb33f2efb0775c2983bc5348c86529d.tar.gz qemu-00c1b316edb33f2efb0775c2983bc5348c86529d.tar.bz2 | |
i386: clarify 'hv-passthrough' behavior
Clarify the fact that 'hv-passthrough' only enables features which are
already known to QEMU and that it overrides all other 'hv-*' settings.
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20210608120817.1325125-3-vkuznets@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'docs/hyperv.txt')
| -rw-r--r-- | docs/hyperv.txt | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/docs/hyperv.txt b/docs/hyperv.txt index e53c581..a51953d 100644 --- a/docs/hyperv.txt +++ b/docs/hyperv.txt @@ -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 |