[Xen-changelog] [xen master] x86: eliminate has_arch_mmios()

[patchbot@xxxxxxx]

commit 79233938ab2a8f273fd5dcdbf8e8381b9eb3a461
Author:     Jan Beulich <jbeulich@xxxxxxxx>
AuthorDate: Tue Nov 12 16:28:47 2013 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Nov 12 16:28:47 2013 +0100

    x86: eliminate has_arch_mmios()
    
    ... as being generally insufficient: Either has_arch_pdevs() or
    cache_flush_permitted() should be used (in particular, it is
    insufficient to consider MMIO ranges alone - I/O port ranges have the
    same requirements if available to a guest).
    
    Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Keir Fraser <keir@xxxxxxx>
---
 xen/arch/x86/hvm/svm/svm.c   |    3 ++-
 xen/arch/x86/hvm/vmx/vmx.c   |    6 ++----
 xen/include/asm-x86/domain.h |    1 -
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c
index 22a63a7..406d394 100644
--- a/xen/arch/x86/hvm/svm/svm.c
+++ b/xen/arch/x86/hvm/svm/svm.c
@@ -40,6 +40,7 @@
 #include <asm/debugreg.h>
 #include <asm/msr.h>
 #include <asm/i387.h>
+#include <asm/iocap.h>
 #include <asm/spinlock.h>
 #include <asm/hvm/emulate.h>
 #include <asm/hvm/hvm.h>
@@ -1973,7 +1974,7 @@ static void wbinvd_ipi(void *info)
 
 static void svm_wbinvd_intercept(void)
 {
-    if ( has_arch_mmios(current->domain) )
+    if ( cache_flush_permitted(current->domain) )
         on_each_cpu(wbinvd_ipi, NULL, 1);
 }
 
diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 57a9caf..8e418c5 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -28,6 +28,7 @@
 #include <xen/perfc.h>
 #include <asm/current.h>
 #include <asm/io.h>
+#include <asm/iocap.h>
 #include <asm/regs.h>
 #include <asm/cpufeature.h>
 #include <asm/processor.h>
@@ -2236,10 +2237,7 @@ static void wbinvd_ipi(void *info)
 
 static void vmx_wbinvd_intercept(void)
 {
-    if ( !has_arch_mmios(current->domain) )
-        return;
-
-    if ( iommu_snoop )
+    if ( !cache_flush_permitted(current->domain) || iommu_snoop )
         return;
 
     if ( cpu_has_wbinvd_exiting )
diff --git a/xen/include/asm-x86/domain.h b/xen/include/asm-x86/domain.h
index e42651e..e4da850 100644
--- a/xen/include/asm-x86/domain.h
+++ b/xen/include/asm-x86/domain.h
@@ -316,7 +316,6 @@ struct arch_domain
 } __cacheline_aligned;
 
 #define has_arch_pdevs(d)    (!list_empty(&(d)->arch.pdev_list))
-#define has_arch_mmios(d)    (!rangeset_is_empty((d)->iomem_caps))
 
 #define gdt_ldt_pt_idx(v) \
       ((v)->vcpu_id >> (PAGETABLE_ORDER - GDT_LDT_VCPU_SHIFT))
--
generated by git-patchbot for /home/xen/git/xen.git#master

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