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KVM: selftests: Add demand paging content to the demand paging test

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The demand paging test is currently a simple page access test which, while
potentially useful, doesn't add much versus the existing dirty logging
test. To improve the demand paging test, add a basic userfaultfd demand
paging implementation.

Signed-off-by: Ben Gardon <bgardon@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Ben Gardon
2020-02-20 18:09:12 +01:00
committed by Paolo Bonzini
parent 025eed7b35
commit 4f72180eb4
2 changed files with 209 additions and 4 deletions
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3
tools/arch/x86/include/asm/unistd_64.h
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@@ -1,4 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NR_userfaultfd
#define __NR_userfaultfd 282
#endif
#ifndef __NR_perf_event_open
# define __NR_perf_event_open 298
#endif