1 files changed, 0 insertions, 76 deletions
diff --git a/system/xen/xsa/xsa196-0002-x86-svm-Fix-injection-of-software-interrupts.patch b/system/xen/xsa/xsa196-0002-x86-svm-Fix-injection-of-software-interrupts.patch
deleted file mode 100644
index 26580ff8099ef..0000000000000
--- a/system/xen/xsa/xsa196-0002-x86-svm-Fix-injection-of-software-interrupts.patch
+++ /dev/null
@@ -1,76 +0,0 @@
-From: Andrew Cooper <andrew.cooper3@citrix.com>
-Subject: x86/svm: Fix injection of software interrupts
-
-The non-NextRip logic in c/s 36ebf14eb "x86/emulate: support for emulating
-software event injection" was based on an older version of the AMD software
-manual.  The manual was later corrected, following findings from that series.
-
-I took the original wording of "not supported without NextRIP" to mean that
-X86_EVENTTYPE_SW_INTERRUPT was not eligible for use.  It turns out that this
-is not the case, and the new wording is clearer on the matter.
-
-Despite testing the original patch series on non-NRip hardware, the
-swint-emulation XTF test case focuses on the debug vectors; it never ended up
-executing an `int $n` instruction for a vector which wasn't also an exception.
-
-During a vmentry, the use of X86_EVENTTYPE_HW_EXCEPTION comes with a vector
-check to ensure that it is only used with exception vectors.  Xen's use of
-X86_EVENTTYPE_HW_EXCEPTION for `int $n` injection has always been buggy on AMD
-hardware.
-
-Fix this by always using X86_EVENTTYPE_SW_INTERRUPT.
-
-Print and decode the eventinj information in svm_vmcb_dump(), as it has
-several invalid combinations which cause vmentry failures.
-
-This is part of XSA-196.
-
-Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
-Reviewed-by: Jan Beulich <jbeulich@suse.com>
----
- xen/arch/x86/hvm/svm/svm.c      | 13 +++++--------
- xen/arch/x86/hvm/svm/svmdebug.c |  4 ++++
- 2 files changed, 9 insertions(+), 8 deletions(-)
-
-diff --git a/xen/arch/x86/hvm/svm/svm.c b/xen/arch/x86/hvm/svm/svm.c
-index 4391744..76efc3e 100644
---- a/xen/arch/x86/hvm/svm/svm.c
-+++ b/xen/arch/x86/hvm/svm/svm.c
-@@ -1231,17 +1231,14 @@ static void svm_inject_trap(const struct hvm_trap *trap)
-     {
-     case X86_EVENTTYPE_SW_INTERRUPT: /* int $n */
-         /*
--         * Injection type 4 (software interrupt) is only supported with
--         * NextRIP support.  Without NextRIP, the emulator will have performed
--         * DPL and presence checks for us.
-+         * Software interrupts (type 4) cannot be properly injected if the
-+         * processor doesn't support NextRIP.  Without NextRIP, the emulator
-+         * will have performed DPL and presence checks for us, and will have
-+         * moved eip forward if appropriate.
-          */
-         if ( cpu_has_svm_nrips )
--        {
-             vmcb->nextrip = regs->eip + _trap.insn_len;
--            event.fields.type = X86_EVENTTYPE_SW_INTERRUPT;
--        }
--        else
--            event.fields.type = X86_EVENTTYPE_HW_EXCEPTION;
-+        event.fields.type = X86_EVENTTYPE_SW_INTERRUPT;
-         break;
- 
-     case X86_EVENTTYPE_PRI_SW_EXCEPTION: /* icebp */
-diff --git a/xen/arch/x86/hvm/svm/svmdebug.c b/xen/arch/x86/hvm/svm/svmdebug.c
-index ded5d19..f93dfed 100644
---- a/xen/arch/x86/hvm/svm/svmdebug.c
-+++ b/xen/arch/x86/hvm/svm/svmdebug.c
-@@ -48,6 +48,10 @@ void svm_vmcb_dump(const char *from, struct vmcb_struct *vmcb)
-            vmcb->tlb_control,
-            (unsigned long long)vmcb->_vintr.bytes,
-            (unsigned long long)vmcb->interrupt_shadow);
-+    printk("eventinj %016"PRIx64", valid? %d, ec? %d, type %u, vector %#x\n",
-+           vmcb->eventinj.bytes, vmcb->eventinj.fields.v,
-+           vmcb->eventinj.fields.ev, vmcb->eventinj.fields.type,
-+           vmcb->eventinj.fields.vector);
-     printk("exitcode = %#Lx exitintinfo = %#Lx\n",
-            (unsigned long long)vmcb->exitcode,
-            (unsigned long long)vmcb->exitintinfo.bytes);