[PATCH v4 2/3] x86/vmx: Update DR7 type

[dmkhn@xxxxxxxxx]

From: Denis Mukhin <dmukhin@xxxxxxxx>

Convert the DR7 type to `unsigned int` and fix the accesses where necessary.

[1] 
https://lore.kernel.org/xen-devel/0d01646b-83e3-4a02-b365-d149d2664e73@xxxxxxxxxx/

Signed-off-by: Denis Mukhin <dmukhin@xxxxxxxx>
---
 xen/arch/x86/hvm/vmx/vmx.c        | 2 +-
 xen/arch/x86/include/asm/domain.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c
index 4883bd823d..75c6992172 100644
--- a/xen/arch/x86/hvm/vmx/vmx.c
+++ b/xen/arch/x86/hvm/vmx/vmx.c
@@ -926,7 +926,7 @@ static void vmx_save_dr(struct vcpu *v)
     v->arch.dr[3] = read_debugreg(3);
     v->arch.dr6   = read_debugreg(6);
     /* DR7 must be saved as it is used by vmx_restore_dr(). */
-    __vmread(GUEST_DR7, &v->arch.dr7);
+    v->arch.dr7 = vmread(GUEST_DR7);
 }
 
 static void __restore_debug_registers(struct vcpu *v)
diff --git a/xen/arch/x86/include/asm/domain.h 
b/xen/arch/x86/include/asm/domain.h
index 5fc1d1e5d0..a54ef3a8c1 100644
--- a/xen/arch/x86/include/asm/domain.h
+++ b/xen/arch/x86/include/asm/domain.h
@@ -595,7 +595,7 @@ struct arch_vcpu
 
     /* Debug registers. */
     unsigned long dr[4];
-    unsigned long dr7; /* Ideally int, but __vmread() needs long. */
+    unsigned int dr7;
     unsigned int dr6;
 
     /* other state */
-- 
2.34.1