diff mbox series

[kvm-unit-tests,3/5] x86: svm: flush TLB on each test

Message ID 20200630094516.22983-4-namit@vmware.com (mailing list archive)
State New, archived
Headers show
Series x86: svm: fixes | expand

Commit Message

Nadav Amit June 30, 2020, 9:45 a.m. UTC 
Several svm tests change PTEs but do not flush the TLB. To avoid messing
around or encountering new bugs in the future, flush the TLB on every
test.

Signed-off-by: Nadav Amit <namit@vmware.com>
---
 x86/svm.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/x86/svm.c b/x86/svm.c
index f35c063..0fcad8d 100644
--- a/x86/svm.c
+++ b/x86/svm.c
@@ -170,6 +170,7 @@  void vmcb_ident(struct vmcb *vmcb)
 	if (npt_supported()) {
 		ctrl->nested_ctl = 1;
 		ctrl->nested_cr3 = (u64)pml4e;
+		ctrl->tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID;
 	}
 }