diff options
| author | Babu Moger <babu.moger@amd.com> | 2018-06-19 17:31:58 -0400 |
|---|---|---|
| committer | Eduardo Habkost <ehabkost@redhat.com> | 2018-06-22 15:01:15 -0300 |
| commit | e00516475c270dcb6705753da96063f95699abf2 (patch) | |
| tree | d674b3b0aad2125e87e8b4ee6193ac6efcdd726e /include | |
| parent | 631be32155dbafa1fe886f2488127956c9120ba6 (diff) | |
| download | qemu-e00516475c270dcb6705753da96063f95699abf2.zip qemu-e00516475c270dcb6705753da96063f95699abf2.tar.gz qemu-e00516475c270dcb6705753da96063f95699abf2.tar.bz2 | |
i386: Enable TOPOEXT feature on AMD EPYC CPU
Enable TOPOEXT feature on EPYC CPU. This is required to support
hyperthreading on VM guests. Also extend xlevel to 0x8000001E.
Disable topoext on PC_COMPAT_2_12 and keep xlevel 0x8000000a.
Signed-off-by: Babu Moger <babu.moger@amd.com>
Message-Id: <1529443919-67509-3-git-send-email-babu.moger@amd.com>
[ehabkost: Added EPYC-IBPB.xlevel to PC_COMPAT_2_12]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/i386/pc.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h index fc8dedc..316230e 100644 --- a/include/hw/i386/pc.h +++ b/include/hw/i386/pc.h @@ -303,6 +303,18 @@ bool e820_get_entry(int, uint32_t, uint64_t *, uint64_t *); .driver = TYPE_X86_CPU,\ .property = "legacy-cache",\ .value = "on",\ + },{\ + .driver = TYPE_X86_CPU,\ + .property = "topoext",\ + .value = "off",\ + },{\ + .driver = "EPYC-" TYPE_X86_CPU,\ + .property = "xlevel",\ + .value = stringify(0x8000000a),\ + },{\ + .driver = "EPYC-IBPB" TYPE_X86_CPU,\ + .property = "xlevel",\ + .value = stringify(0x8000000a),\ }, #define PC_COMPAT_2_11 \ |