Module Name: src
Committed By: maxv
Date: Wed Aug 26 16:29:20 UTC 2020
Modified Files:
src/sys/dev/nvmm/x86: nvmm_x86_svm.c
Log Message:
nvmm-x86-svm: don't forget to intercept INVD
INVD executed in the guest can be dangerous for the host, due to CPU
caches being flushed without write-back.
To generate a diff of this commit:
cvs rdiff -u -r1.71 -r1.72 src/sys/dev/nvmm/x86/nvmm_x86_svm.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/nvmm/x86/nvmm_x86_svm.c
diff -u src/sys/dev/nvmm/x86/nvmm_x86_svm.c:1.71 src/sys/dev/nvmm/x86/nvmm_x86_svm.c:1.72
--- src/sys/dev/nvmm/x86/nvmm_x86_svm.c:1.71 Sat Aug 22 10:59:05 2020
+++ src/sys/dev/nvmm/x86/nvmm_x86_svm.c Wed Aug 26 16:29:19 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: nvmm_x86_svm.c,v 1.71 2020/08/22 10:59:05 maxv Exp $ */
+/* $NetBSD: nvmm_x86_svm.c,v 1.72 2020/08/26 16:29:19 maxv Exp $ */
/*
* Copyright (c) 2018-2020 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nvmm_x86_svm.c,v 1.71 2020/08/22 10:59:05 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nvmm_x86_svm.c,v 1.72 2020/08/26 16:29:19 maxv Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -2118,7 +2118,6 @@ svm_vcpu_init(struct nvmm_machine *mach,
* - POPF [popf instruction]
* - IRET [iret instruction]
* - INTN [int $n instructions]
- * - INVD [invd instruction]
* - PAUSE [pause instruction]
* - INVLPG [invplg instruction]
* - TASKSW [task switches]
@@ -2132,6 +2131,7 @@ svm_vcpu_init(struct nvmm_machine *mach,
VMCB_CTRL_INTERCEPT_RDPMC |
VMCB_CTRL_INTERCEPT_CPUID |
VMCB_CTRL_INTERCEPT_RSM |
+ VMCB_CTRL_INTERCEPT_INVD |
VMCB_CTRL_INTERCEPT_HLT |
VMCB_CTRL_INTERCEPT_INVLPGA |
VMCB_CTRL_INTERCEPT_IOIO_PROT |
