[Xen-changelog] [xen master] x86: L2 CAT: implement set value flow.

[patchbot@xxxxxxx]

commit a29ea3bb5b5036f19797fd5dcd9ba240e1adb98f
Author:     Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx>
AuthorDate: Tue Aug 1 11:05:00 2017 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Thu Aug 3 12:38:12 2017 +0200

    x86: L2 CAT: implement set value flow.
    
    This patch implements L2 CAT set value related callback function
    and domctl interface.
    
    Signed-off-by: Yi Sun <yi.y.sun@xxxxxxxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/x86/domctl.c       | 6 ++++++
 xen/arch/x86/psr.c          | 1 +
 xen/include/public/domctl.h | 1 +
 3 files changed, 8 insertions(+)

diff --git a/xen/arch/x86/domctl.c b/xen/arch/x86/domctl.c
index b4847b6..127c84e 100644
--- a/xen/arch/x86/domctl.c
+++ b/xen/arch/x86/domctl.c
@@ -1462,6 +1462,12 @@ long arch_do_domctl(
                               PSR_CBM_TYPE_L3_DATA);
             break;
 
+        case XEN_DOMCTL_PSR_CAT_OP_SET_L2_CBM:
+            ret = psr_set_val(d, domctl->u.psr_cat_op.target,
+                              domctl->u.psr_cat_op.data,
+                              PSR_CBM_TYPE_L2);
+            break;
+
         case XEN_DOMCTL_PSR_CAT_OP_GET_L3_CBM:
             ret = psr_get_val(d, domctl->u.psr_cat_op.target,
                               &val32, PSR_CBM_TYPE_L3);
diff --git a/xen/arch/x86/psr.c b/xen/arch/x86/psr.c
index 4dd9112..7d9fa26 100644
--- a/xen/arch/x86/psr.c
+++ b/xen/arch/x86/psr.c
@@ -408,6 +408,7 @@ static const struct feat_props l3_cdp_props = {
 /* L2 CAT props */
 static void l2_cat_write_msr(unsigned int cos, uint32_t val, enum cbm_type 
type)
 {
+    wrmsrl(MSR_IA32_PSR_L2_MASK(cos), val);
 }
 
 static const struct feat_props l2_cat_props = {
diff --git a/xen/include/public/domctl.h b/xen/include/public/domctl.h
index 61d44cd..0669c31 100644
--- a/xen/include/public/domctl.h
+++ b/xen/include/public/domctl.h
@@ -1142,6 +1142,7 @@ struct xen_domctl_psr_cat_op {
 #define XEN_DOMCTL_PSR_CAT_OP_SET_L3_DATA    3
 #define XEN_DOMCTL_PSR_CAT_OP_GET_L3_CODE    4
 #define XEN_DOMCTL_PSR_CAT_OP_GET_L3_DATA    5
+#define XEN_DOMCTL_PSR_CAT_OP_SET_L2_CBM     6
 #define XEN_DOMCTL_PSR_CAT_OP_GET_L2_CBM     7
     uint32_t cmd;       /* IN: XEN_DOMCTL_PSR_CAT_OP_* */
     uint32_t target;    /* IN */
--
generated by git-patchbot for /home/xen/git/xen.git#master

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