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| author | kib <kib@FreeBSD.org> | 2018-02-17 18:00:01 +0000 |
|---|---|---|
| committer | Luiz Souza <luiz@netgate.com> | 2018-02-19 14:55:29 -0300 |
| commit | 430a2bea3907149b30cc75fc722b6cf1f81da82a (patch) | |
| tree | c808db355a0220f39f7dff07a7e4805c57c44190 /sys/x86/xen | |
| parent | 75492dc7653f9d5eb0e33bc8277957739f587ff0 (diff) | |
| download | FreeBSD-src-430a2bea3907149b30cc75fc722b6cf1f81da82a.zip FreeBSD-src-430a2bea3907149b30cc75fc722b6cf1f81da82a.tar.gz | |
MFC r328083,328096,328116,328119,328120,328128,328135,328153,328157,
328166,328177,328199,328202,328205,328468,328470,328624,328625,328627,
328628,329214,329297,329365:
Meltdown mitigation by PTI, PCID optimization of PTI, and kernel use of IBRS
for some mitigations of Spectre.
Tested by: emaste, Arshan Khanifar <arshankhanifar@gmail.com>
Discussed with: jkim
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 6dd025b40ee6870bea6ba670f30dcf684edc3f6c)
Diffstat (limited to 'sys/x86/xen')
| -rw-r--r-- | sys/x86/xen/pv.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/x86/xen/pv.c b/sys/x86/xen/pv.c index 9ad9aa9..f4b68f0 100644 --- a/sys/x86/xen/pv.c +++ b/sys/x86/xen/pv.c @@ -97,6 +97,7 @@ static int xen_pv_start_all_aps(void); #ifdef SMP /* Variables used by amd64 mp_machdep to start APs */ extern char *doublefault_stack; +extern char *mce_stack; extern char *nmi_stack; #endif @@ -217,6 +218,8 @@ start_xen_ap(int cpu) (void *)kmem_malloc(kernel_arena, stacksize, M_WAITOK | M_ZERO); doublefault_stack = (char *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZERO); + mce_stack = + (char *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZERO); nmi_stack = (char *)kmem_malloc(kernel_arena, PAGE_SIZE, M_WAITOK | M_ZERO); dpcpu = |
