Author: gordon
Date: Thu Jun 21 05:18:08 2018
New Revision: 335466
URL: https://svnweb.freebsd.org/changeset/base/335466
Log:
Fix TLB shootdown for Xen based guests. [EN-18:07.pmap]
Approved by: so
Security: FreeBSD-EN-18:07.pmap
Modified:
releng/11.1/sys/x86/xen/xen_apic.c
Modified: releng/11.1/sys/x86/xen/xen_apic.c
==============================================================================
--- releng/11.1/sys/x86/xen/xen_apic.c Thu Jun 21 05:17:13 2018
(r335465)
+++ releng/11.1/sys/x86/xen/xen_apic.c Thu Jun 21 05:18:08 2018
(r335466)
@@ -41,6 +41,7 @@ __FBSDID("$FreeBSD$");
#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 @@ xen_invltlb_pcid(void *arg)
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 @@ xen_setup_cpus(void)
#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)
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