diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2020-05-15 13:48:47 +0200 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2020-09-18 13:49:54 -0400 |
| commit | f701c082e72d4786686dfd1d9d877b64dc1d2804 (patch) | |
| tree | 46c8fbd06b4942b1b10236bdaa764aac40da72e2 /docs | |
| parent | 053a4177817db307ec854356e95b5b350800a216 (diff) | |
i386/kvm: correct the meaning of '0xffffffff' value for hv-spinlocks
Hyper-V TLFS prior to version 6.0 had a mistake in it: special value
'0xffffffff' for CPUID 0x40000004.EBX was called 'never to retry', this
looked weird (like why it's not '0' which supposedly have the same effect?)
but nobody raised the question. In TLFS version 6.0 the mistake was
corrected to 'never notify' which sounds logical. Fix QEMU accordingly.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200515114847.74523-1-vkuznets@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/hyperv.txt | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/docs/hyperv.txt b/docs/hyperv.txt index 6518b716a9..5df00da54f 100644 --- a/docs/hyperv.txt +++ b/docs/hyperv.txt @@ -49,7 +49,7 @@ more efficiently. In particular, this enlightenment allows paravirtualized ====================== Enables paravirtualized spinlocks. The parameter indicates how many times spinlock acquisition should be attempted before indicating the situation to the -hypervisor. A special value 0xffffffff indicates "never to retry". +hypervisor. A special value 0xffffffff indicates "never notify". 3.4. hv-vpindex ================ |