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-rw-r--r--main/xen/xsa201-3-4.7.patch47
1 files changed, 0 insertions, 47 deletions
diff --git a/main/xen/xsa201-3-4.7.patch b/main/xen/xsa201-3-4.7.patch
deleted file mode 100644
index af7fc3703e..0000000000
--- a/main/xen/xsa201-3-4.7.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From: Wei Chen <Wei.Chen@arm.com>
-Subject: arm: crash the guest when it traps on external abort
-
-If we spot a data or prefetch abort bearing the ESR_EL2.EA bit set, we
-know that this is an external abort, and that should crash the guest.
-
-This is CVE-2016-9817, part of XSA-201.
-
-Signed-off-by: Wei Chen <Wei.Chen@arm.com>
-Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
-Reviewed-by: Steve Capper <steve.capper@arm.com>
-Reviewed-by: Julien Grall <Julien.Grall@arm.com>
-
---- a/xen/arch/arm/traps.c
-+++ b/xen/arch/arm/traps.c
-@@ -2383,6 +2383,15 @@ static void do_trap_instr_abort_guest(struct cpu_user_regs *regs,
- int rc;
- register_t gva = READ_SYSREG(FAR_EL2);
-
-+ /*
-+ * If this bit has been set, it means that this instruction abort is caused
-+ * by a guest external abort. Currently we crash the guest to protect the
-+ * hypervisor. In future one can better handle this by injecting a virtual
-+ * abort to the guest.
-+ */
-+ if ( hsr.iabt.eat )
-+ domain_crash_synchronous();
-+
- switch ( hsr.iabt.ifsc & 0x3f )
- {
- case FSC_FLT_PERM ... FSC_FLT_PERM + 3:
-@@ -2437,6 +2446,15 @@ static void do_trap_data_abort_guest(struct cpu_user_regs *regs,
- return;
- }
-
-+ /*
-+ * If this bit has been set, it means that this data abort is caused
-+ * by a guest external abort. Currently we crash the guest to protect the
-+ * hypervisor. In future one can better handle this by injecting a virtual
-+ * abort to the guest.
-+ */
-+ if ( dabt.eat )
-+ domain_crash_synchronous();
-+
- info.dabt = dabt;
- #ifdef CONFIG_ARM_32
- info.gva = READ_CP32(HDFAR);