diff options
| author | Wanpeng Li <wanpengli@tencent.com> | 2020-07-31 11:12:20 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-07-31 03:21:03 -0400 |
| commit | a445fc457d2886a1264ec09c34f4000d1b30784d (patch) | |
| tree | 52f83c08c2b38281491d5a0f1bc844ad59bae214 /arch/alpha/lib/clear_user.S | |
| parent | 83013059bdc5486dcbcd33b5c4abf8431766e06c (diff) | |
KVM: LAPIC: Set the TDCR settable bits
It is a little different between Intel and AMD, Intel's bit 2
is 0 and AMD is reserved. On bare-metal, Intel will refuse to set
APIC_TDCR once bits except 0, 1, 3 are setting, however, AMD will
accept bits 0, 1, 3 and ignore other bits setting as patch does.
Before the patch, we can get back anything what we set to the
APIC_TDCR, this patch improves it.
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Message-Id: <1596165141-28874-2-git-send-email-wanpengli@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/alpha/lib/clear_user.S')
0 files changed, 0 insertions, 0 deletions