aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/kernel/cpu/amd.c
diff options
context:
space:
mode:
authorDavid S. Miller <[email protected]>2019-06-07 11:00:14 -0700
committerDavid S. Miller <[email protected]>2019-06-07 11:00:14 -0700
commita6cdeeb16bff89c8486324f53577db058cbe81ba (patch)
treede2d38e10f5768bdf1d2902112a4803d0ae767f3 /arch/x86/kernel/cpu/amd.c
parent96524ea4be04683bb3ad8ebaedcbe3a6e34302de (diff)
parent1e1d926369545ea09c98c6c7f5d109aa4ee0cd0b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Some ISDN files that got removed in net-next had some changes done in mainline, take the removals. Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
-rw-r--r--arch/x86/kernel/cpu/amd.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 80a405c2048a..8d4e50428b68 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -824,8 +824,11 @@ static void init_amd_zn(struct cpuinfo_x86 *c)
{
set_cpu_cap(c, X86_FEATURE_ZEN);
- /* Fix erratum 1076: CPB feature bit not being set in CPUID. */
- if (!cpu_has(c, X86_FEATURE_CPB))
+ /*
+ * Fix erratum 1076: CPB feature bit not being set in CPUID.
+ * Always set it, except when running under a hypervisor.
+ */
+ if (!cpu_has(c, X86_FEATURE_HYPERVISOR) && !cpu_has(c, X86_FEATURE_CPB))
set_cpu_cap(c, X86_FEATURE_CPB);
}