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| author | Radim Krčmář | 2016-05-12 19:24:26 +0200 |
|---|---|---|
| committer | Eduardo Habkost | 2016-06-14 21:17:08 +0200 |
| commit | 5232d00a041c8f3628b3532ef35d703a1f0dac19 (patch) | |
| tree | b8be8c9cd1ce38409a68e73a36c44de101662392 /linux-headers | |
| parent | pc: Add 2.7 machine (diff) | |
| download | qemu-5232d00a041c8f3628b3532ef35d703a1f0dac19.tar.gz qemu-5232d00a041c8f3628b3532ef35d703a1f0dac19.tar.xz qemu-5232d00a041c8f3628b3532ef35d703a1f0dac19.zip | |
target-i386: Implement CPUID[0xB] (Extended Topology Enumeration)
I looked at a dozen Intel CPU that have this CPUID and all of them
always had Core offset as 1 (a wasted bit when hyperthreading is
disabled) and Package offset at least 4 (wasted bits at <= 4 cores).
QEMU uses more compact IDs and it doesn't make much sense to change it
now. I keep the SMT and Core sub-leaves even if there is just one
thread/core; it makes the code simpler and there should be no harm.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'linux-headers')
0 files changed, 0 insertions, 0 deletions