x86/svm: fix violations of MISRA C:2012 Rule 7.2

The xen sources contains violations of MISRA C:2012 Rule 7.2 whose
headline states:
"A 'u' or 'U' suffix shall be applied to all integer constants
that are represented in an unsigned type".

Add the 'U' suffix to integers literals with unsigned type and also to other
literals used in the same contexts or near violations, when their positive
nature is immediately clear. The latter changes are done for the sake of
uniformity.

Signed-off-by: Gianluca Luparini <gianluca.luparini@bugseng.com>
Signed-off-by: Simone Ballarin <simone.ballarin@bugseng.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Acked-by: Jan Beulich <jbeulich@suse.com>

xen/arch/x86/hvm/svm/asid.c

@@ -16,7 +16,7 @@ void svm_asid_init(const struct cpuinfo_x86 *c)
 
     /* Check for erratum #170, and leave ASIDs disabled if it's present. */
     if ( !cpu_has_amd_erratum(c, AMD_ERRATUM_170) )
-        nasids = cpuid_ebx(0x8000000A);
+        nasids = cpuid_ebx(0x8000000aU);
 
     hvm_asid_init(nasids);
 }

xen/arch/x86/hvm/svm/svm.c

@@ -269,9 +269,9 @@ svm_msrbit(unsigned long *msr_bitmap, uint32_t msr)
      */
     if ( msr <= 0x1fff )
         msr_bit = msr_bitmap + 0x0000 / BYTES_PER_LONG;
-    else if ( (msr >= 0xc0000000) && (msr <= 0xc0001fff) )
+    else if ( (msr >= 0xc0000000U) && (msr <= 0xc0001fffU) )
         msr_bit = msr_bitmap + 0x0800 / BYTES_PER_LONG;
-    else if ( (msr >= 0xc0010000) && (msr <= 0xc0011fff) )
+    else if ( (msr >= 0xc0010000U) && (msr <= 0xc0011fffU) )
         msr_bit = msr_bitmap + 0x1000 / BYTES_PER_LONG;
 
     return msr_bit;
@@ -2539,8 +2539,8 @@ const struct hvm_function_table * __init start_svm(void)
 
     setup_vmcb_dump();
 
-    if ( boot_cpu_data.extended_cpuid_level >= 0x8000000a )
-        svm_feature_flags = cpuid_edx(0x8000000a);
+    if ( boot_cpu_data.extended_cpuid_level >= 0x8000000aU )
+        svm_feature_flags = cpuid_edx(0x8000000aU);
 
     printk("SVM: Supported advanced features:\n");