[xen staging] x86/shadow: adjust is_pv_*() checks

[patchbot@xxxxxxx]

commit be167ac0f0268074880b961c936519f756ac045b
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Mon Apr 12 12:37:19 2021 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Apr 12 12:37:19 2021 +0200

    x86/shadow: adjust is_pv_*() checks
    
    To cover for "x86: correct is_pv_domain() when !CONFIG_PV" (or any other
    change along those lines) we should prefer is_hvm_*(), as it may become
    a build time constant while is_pv_*() generally won't.
    
    Also when a domain pointer is in scope, prefer is_*_domain() over
    is_*_vcpu().
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Reviewed-by: Tim Deegan <tim@xxxxxxx>
---
 xen/arch/x86/mm/shadow/common.c |  4 ++--
 xen/arch/x86/mm/shadow/multi.c  | 10 +++++-----
 xen/arch/x86/mm/shadow/none.c   |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/xen/arch/x86/mm/shadow/common.c b/xen/arch/x86/mm/shadow/common.c
index c0c4ce46e4..b99ca14e71 100644
--- a/xen/arch/x86/mm/shadow/common.c
+++ b/xen/arch/x86/mm/shadow/common.c
@@ -674,7 +674,7 @@ int sh_unsync(struct vcpu *v, mfn_t gmfn)
     if ( pg->shadow_flags &
          ((SHF_page_type_mask & ~SHF_L1_ANY) | SHF_out_of_sync)
          || sh_page_has_multiple_shadows(pg)
-         || is_pv_vcpu(v)
+         || !is_hvm_vcpu(v)
          || !v->domain->arch.paging.shadow.oos_active )
         return 0;
 
@@ -2432,7 +2432,7 @@ static void sh_update_paging_modes(struct vcpu *v)
         v->arch.paging.mode->shadow.detach_old_tables(v);
 
 #ifdef CONFIG_HVM
-    if ( !is_pv_domain(d) )
+    if ( is_hvm_domain(d) )
     {
         const struct paging_mode *old_mode = v->arch.paging.mode;
 
diff --git a/xen/arch/x86/mm/shadow/multi.c b/xen/arch/x86/mm/shadow/multi.c
index 5e33f6d3db..ae65da439f 100644
--- a/xen/arch/x86/mm/shadow/multi.c
+++ b/xen/arch/x86/mm/shadow/multi.c
@@ -667,8 +667,8 @@ _sh_propagate(struct vcpu *v,
     // PV guests in 64-bit mode use two different page tables for user vs
     // supervisor permissions, making the guest's _PAGE_USER bit irrelevant.
     // It is always shadowed as present...
-    if ( (GUEST_PAGING_LEVELS == 4) && !is_pv_32bit_domain(d)
-         && is_pv_domain(d) )
+    if ( (GUEST_PAGING_LEVELS == 4) && !is_hvm_domain(d) &&
+         !is_pv_32bit_domain(d) )
     {
         sflags |= _PAGE_USER;
     }
@@ -1120,7 +1120,7 @@ static shadow_l2e_t * shadow_get_and_create_l2e(struct 
vcpu *v,
         unsigned int t = SH_type_l2_shadow;
 
         /* Tag compat L2 containing hypervisor (m2p) mappings */
-        if ( is_pv_32bit_vcpu(v) &&
+        if ( is_pv_32bit_domain(d) &&
              guest_l4_table_offset(gw->va) == 0 &&
              guest_l3_table_offset(gw->va) == 3 )
             t = SH_type_l2h_shadow;
@@ -2314,7 +2314,7 @@ static int sh_page_fault(struct vcpu *v,
         return 0;
     }
 
-    cpl = is_pv_vcpu(v) ? (regs->ss & 3) : hvm_get_cpl(v);
+    cpl = is_hvm_domain(d) ? hvm_get_cpl(v) : (regs->ss & 3);
 
  rewalk:
 
@@ -3237,7 +3237,7 @@ sh_update_cr3(struct vcpu *v, int do_locking, bool 
noflush)
 #endif
 
     /* Don't do anything on an uninitialised vcpu */
-    if ( is_pv_domain(d) && !v->is_initialised )
+    if ( !is_hvm_domain(d) && !v->is_initialised )
     {
         ASSERT(v->arch.cr3 == 0);
         return;
diff --git a/xen/arch/x86/mm/shadow/none.c b/xen/arch/x86/mm/shadow/none.c
index 691269a59e..67745074c4 100644
--- a/xen/arch/x86/mm/shadow/none.c
+++ b/xen/arch/x86/mm/shadow/none.c
@@ -27,7 +27,7 @@ int shadow_domain_init(struct domain *d)
     };
 
     paging_log_dirty_init(d, &sh_none_ops);
-    return is_pv_domain(d) ? 0 : -EOPNOTSUPP;
+    return is_hvm_domain(d) ? -EOPNOTSUPP : 0;
 }
 
 static int _page_fault(struct vcpu *v, unsigned long va,
--
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