1 files changed, 0 insertions, 57 deletions
diff --git a/main/xen/xsa53-4.2.patch b/main/xen/xsa53-4.2.patch
deleted file mode 100644
index eb8e79bed2..0000000000
--- a/main/xen/xsa53-4.2.patch
+++ /dev/null
@@ -1,57 +0,0 @@
-x86/xsave: recover from faults on XRSTOR
-
-Just like FXRSTOR, XRSTOR can raise #GP if bad content is being passed
-to it in the memory block (i.e. aspects not under the control of the
-hypervisor, other than e.g. proper alignment of the block).
-
-Also correct the comment explaining why FXRSTOR needs exception
-recovery code to not wrongly state that this can only be a result of
-the control tools passing a bad image.
-
-This is CVE-2013-2077 / XSA-53.
-
-Signed-off-by: Jan Beulich <jbeulich@suse.com>
-
---- a/xen/arch/x86/i387.c
-+++ b/xen/arch/x86/i387.c
-@@ -53,7 +53,7 @@ static inline void fpu_fxrstor(struct vc
-     /*
-      * FXRSTOR can fault if passed a corrupted data block. We handle this
-      * possibility, which may occur if the block was passed to us by control
--     * tools, by silently clearing the block.
-+     * tools or through VCPUOP_initialise, by silently clearing the block.
-      */
-     asm volatile (
- #ifdef __i386__
---- a/xen/arch/x86/xstate.c
-+++ b/xen/arch/x86/xstate.c
-@@ -93,10 +93,25 @@ void xrstor(struct vcpu *v, uint64_t mas
-                        "fildl %0"          /* load to clear state */
-                        : : "m" (ptr->fpu_sse) );
- 
--    asm volatile (
--        ".byte " REX_PREFIX "0x0f,0xae,0x2f"
--        :
--        : "m" (*ptr), "a" (lmask), "d" (hmask), "D"(ptr) );
-+    /*
-+     * XRSTOR can fault if passed a corrupted data block. We handle this
-+     * possibility, which may occur if the block was passed to us by control
-+     * tools or through VCPUOP_initialise, by silently clearing the block.
-+     */
-+    asm volatile ( "1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n"
-+                   ".section .fixup,\"ax\"\n"
-+                   "2: mov %5,%%ecx       \n"
-+                   "   xor %1,%1          \n"
-+                   "   rep stosb          \n"
-+                   "   lea %2,%0          \n"
-+                   "   mov %3,%1          \n"
-+                   "   jmp 1b             \n"
-+                   ".previous             \n"
-+                   _ASM_EXTABLE(1b, 2b)
-+                   : "+&D" (ptr), "+&a" (lmask)
-+                   : "m" (*ptr), "g" (lmask), "d" (hmask),
-+                     "m" (xsave_cntxt_size)
-+                   : "ecx" );
- }
- 
- bool_t xsave_enabled(const struct vcpu *v)