x86/vMTRR: pass domain to mtrr_*_msr_set()

This is in preparation for the next patch, and mtrr_def_type_msr_set()
and mtrr_fix_range_msr_set() in sync with mtrr_var_range_msr_set() in
this regard.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Tim Deegan <tim@xen.org>

xen/arch/x86/hvm/hvm.c

@@ -3294,13 +3294,15 @@ int hvm_msr_write_intercept(unsigned int msr, uint64_t msr_content)
     case MSR_MTRRdefType:
         if ( !mtrr )
             goto gp_fault;
-        if ( !mtrr_def_type_msr_set(&v->arch.hvm_vcpu.mtrr, msr_content) )
+        if ( !mtrr_def_type_msr_set(v->domain, &v->arch.hvm_vcpu.mtrr,
+                                    msr_content) )
            goto gp_fault;
         break;
     case MSR_MTRRfix64K_00000:
         if ( !mtrr )
             goto gp_fault;
-        if ( !mtrr_fix_range_msr_set(&v->arch.hvm_vcpu.mtrr, 0, msr_content) )
+        if ( !mtrr_fix_range_msr_set(v->domain, &v->arch.hvm_vcpu.mtrr, 0,
+                                     msr_content) )
             goto gp_fault;
         break;
     case MSR_MTRRfix16K_80000:
@@ -3308,7 +3310,7 @@ int hvm_msr_write_intercept(unsigned int msr, uint64_t msr_content)
         if ( !mtrr )
             goto gp_fault;
         index = msr - MSR_MTRRfix16K_80000 + 1;
-        if ( !mtrr_fix_range_msr_set(&v->arch.hvm_vcpu.mtrr,
+        if ( !mtrr_fix_range_msr_set(v->domain, &v->arch.hvm_vcpu.mtrr,
                                      index, msr_content) )
             goto gp_fault;
         break;
@@ -3316,7 +3318,7 @@ int hvm_msr_write_intercept(unsigned int msr, uint64_t msr_content)
         if ( !mtrr )
             goto gp_fault;
         index = msr - MSR_MTRRfix4K_C0000 + 3;
-        if ( !mtrr_fix_range_msr_set(&v->arch.hvm_vcpu.mtrr,
+        if ( !mtrr_fix_range_msr_set(v->domain, &v->arch.hvm_vcpu.mtrr,
                                      index, msr_content) )
             goto gp_fault;
         break;

xen/arch/x86/hvm/mtrr.c

@@ -412,7 +412,8 @@ static inline bool_t valid_mtrr_type(uint8_t type)
     return 0;
 }
 
-bool_t mtrr_def_type_msr_set(struct mtrr_state *m, uint64_t msr_content)
+bool_t mtrr_def_type_msr_set(struct domain *d, struct mtrr_state *m,
+                             uint64_t msr_content)
 {
     uint8_t def_type = msr_content & 0xff;
     uint8_t enabled = (msr_content >> 10) & 0x3;
@@ -436,8 +437,8 @@ bool_t mtrr_def_type_msr_set(struct mtrr_state *m, uint64_t msr_content)
     return 1;
 }
 
-bool_t mtrr_fix_range_msr_set(struct mtrr_state *m, uint32_t row,
-                              uint64_t msr_content)
+bool_t mtrr_fix_range_msr_set(struct domain *d, struct mtrr_state *m,
+                              uint32_t row, uint64_t msr_content)
 {
     uint64_t *fixed_range_base = (uint64_t *)m->fixed_ranges;
 
@@ -669,7 +670,7 @@ static int hvm_load_mtrr_msr(struct domain *d, hvm_domain_context_t *h)
     mtrr_state->mtrr_cap = hw_mtrr.msr_mtrr_cap;
 
     for ( i = 0; i < NUM_FIXED_MSR; i++ )
-        mtrr_fix_range_msr_set(mtrr_state, i, hw_mtrr.msr_mtrr_fixed[i]);
+        mtrr_fix_range_msr_set(d, mtrr_state, i, hw_mtrr.msr_mtrr_fixed[i]);
 
     for ( i = 0; i < MTRR_VCNT; i++ )
     {
@@ -681,7 +682,7 @@ static int hvm_load_mtrr_msr(struct domain *d, hvm_domain_context_t *h)
                                hw_mtrr.msr_mtrr_var[i * 2 + 1]);
     }
 
-    mtrr_def_type_msr_set(mtrr_state, hw_mtrr.msr_mtrr_def_type);
+    mtrr_def_type_msr_set(d, mtrr_state, hw_mtrr.msr_mtrr_def_type);
 
     return 0;
 }

xen/include/asm-x86/mtrr.h

@@ -82,12 +82,12 @@ extern void mtrr_aps_sync_begin(void);
 extern void mtrr_aps_sync_end(void);
 extern void mtrr_bp_restore(void);
 
-extern bool_t mtrr_var_range_msr_set(
-    struct domain *d, struct mtrr_state *m,
-    uint32_t msr, uint64_t msr_content);
-extern bool_t mtrr_fix_range_msr_set(struct mtrr_state *v,
-				uint32_t row, uint64_t msr_content);
-extern bool_t mtrr_def_type_msr_set(struct mtrr_state *v, uint64_t msr_content);
+extern bool_t mtrr_var_range_msr_set(struct domain *, struct mtrr_state *,
+                                     uint32_t msr, uint64_t msr_content);
+extern bool_t mtrr_fix_range_msr_set(struct domain *, struct mtrr_state *,
+                                     uint32_t row, uint64_t msr_content);
+extern bool_t mtrr_def_type_msr_set(struct domain *, struct mtrr_state *,
+                                    uint64_t msr_content);
 extern bool_t pat_msr_set(uint64_t *pat, uint64_t msr);
 
 bool_t is_var_mtrr_overlapped(struct mtrr_state *m);