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Fix TLB shootdown for Xen based guests. [EN-18:07.pmap]

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Approved by:	so
Security:	FreeBSD-EN-18:07.pmap
This commit is contained in:
gordon 2018-06-21 05:18:08 +00:00 committed by Franco Fichtner
parent a766ecf05f
commit 116e406d37
1 changed files with 53 additions and 2 deletions
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55
sys/x86/xen/xen_apic.c
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@ -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)