doc/share/security/patches/EN-18:07/pmap.patch
Gordon Tetlow 94c673d390 Add today's advisory and notices.
Approved by:	so
Sponsored by:	The FreeBSD Foundation
2018-06-21 05:37:37 +00:00

78 lines
1.6 KiB
Diff

--- sys/x86/xen/xen_apic.c.orig
+++ sys/x86/xen/xen_apic.c
@@ -41,6 +41,7 @@
#include <machine/cpufunc.h>
#include <machine/cpu.h>
#include <machine/intr_machdep.h>
+#include <machine/md_var.h>
#include <machine/smp.h>
#include <x86/apicreg.h>
@@ -439,6 +440,46 @@
invltlb_pcid_handler();
return (FILTER_HANDLED);
}
+
+static int
+xen_invltlb_invpcid_pti(void *arg)
+{
+
+ invltlb_invpcid_pti_handler();
+ return (FILTER_HANDLED);
+}
+
+static int
+xen_invlpg_invpcid_handler(void *arg)
+{
+
+ invlpg_invpcid_handler();
+ return (FILTER_HANDLED);
+}
+
+static int
+xen_invlpg_pcid_handler(void *arg)
+{
+
+ invlpg_pcid_handler();
+ return (FILTER_HANDLED);
+}
+
+static int
+xen_invlrng_invpcid_handler(void *arg)
+{
+
+ invlrng_invpcid_handler();
+ return (FILTER_HANDLED);
+}
+
+static int
+xen_invlrng_pcid_handler(void *arg)
+{
+
+ invlrng_pcid_handler();
+ return (FILTER_HANDLED);
+}
#endif
static int
@@ -529,8 +570,18 @@
#ifdef __amd64__
if (pmap_pcid_enabled) {
- xen_ipis[IPI_TO_IDX(IPI_INVLTLB)].filter = invpcid_works ?
- xen_invltlb_invpcid : xen_invltlb_pcid;
+ if (pti)
+ xen_ipis[IPI_TO_IDX(IPI_INVLTLB)].filter =
+ invpcid_works ? xen_invltlb_invpcid_pti :
+ xen_invltlb_pcid;
+ else
+ xen_ipis[IPI_TO_IDX(IPI_INVLTLB)].filter =
+ invpcid_works ? xen_invltlb_invpcid :
+ xen_invltlb_pcid;
+ xen_ipis[IPI_TO_IDX(IPI_INVLPG)].filter = invpcid_works ?
+ xen_invlpg_invpcid_handler : xen_invlpg_pcid_handler;
+ xen_ipis[IPI_TO_IDX(IPI_INVLRNG)].filter = invpcid_works ?
+ xen_invlrng_invpcid_handler : xen_invlrng_pcid_handler;
}
#endif
CPU_FOREACH(i)