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| author | Juergen Gross <jgross@suse.com> | 2017-04-12 08:20:29 +0200 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2017-05-02 11:13:36 +0200 |
| commit | 3ee99df333a0ac57c3bd8155dfa56fc275668f88 (patch) | |
| tree | 61370655b48c9f4d8537e0a0af1e490a86f47f56 /arch | |
| parent | 0808e80cb760de2733c0527d2090ed2205a1eef8 (diff) | |
| download | linux-stable-3ee99df333a0ac57c3bd8155dfa56fc275668f88.tar.gz linux-stable-3ee99df333a0ac57c3bd8155dfa56fc275668f88.tar.bz2 linux-stable-3ee99df333a0ac57c3bd8155dfa56fc275668f88.zip | |
x86/xen: don't indicate DCA support in pv domains
Xen doesn't support DCA (direct cache access) for pv domains. Clear
the corresponding capability indicator.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/xen/enlighten_pv.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 6dc922e3848a..bd69868909b4 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -331,6 +331,7 @@ static void __init xen_init_capabilities(void) { setup_clear_cpu_cap(X86_BUG_SYSRET_SS_ATTRS); setup_force_cpu_cap(X86_FEATURE_XENPV); + setup_clear_cpu_cap(X86_FEATURE_DCA); } static void xen_set_debugreg(int reg, unsigned long val) |