linux-kernel - [PATCH 0/3] Restore extra_mem_pages and add slot0_mem

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Date:   Wed,  9 Jun 2021 07:38:13 +0800
From:   Zhenzhong Duan <zhenzhong.duan@...el.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-kselftest@...r.kernel.org, kvm@...r.kernel.org,
        maciej.szmigiero@...cle.com, drjones@...hat.com,
        pbonzini@...hat.com, shuah@...nel.org,
        Zhenzhong Duan <zhenzhong.duan@...el.com>
Subject: [PATCH 0/3] Restore extra_mem_pages and add slot0_mem_pages

(39fe2fc96694 "selftests: kvm: make allocation of extra memory take effect")
changed the meaning of extra_mem_pages and treated it as slot0 memory size.

In fact extra_mem_pages is used for non-slot0 memory size, there is no custom
slot0 memory size support. See discuss in https://lkml.org/lkml/2021/6/3/551
for more details.

This patchset restores extra_mem_pages's original meaning and adds support for
custom slot0 memory with a new parameter slot0_mem_pages.

Run below command, all 39 tests passed.
# make -C tools/testing/selftests/ TARGETS=kvm run_tests

Zhenzhong Duan (3):
  Revert "selftests: kvm: make allocation of extra memory take effect"
  Revert "selftests: kvm: fix overlapping addresses in
    memslot_perf_test"
  selftests: kvm: Add support for customized slot0 memory size

 .../testing/selftests/kvm/include/kvm_util.h  |  7 +--
 .../selftests/kvm/kvm_page_table_test.c       |  2 +-
 tools/testing/selftests/kvm/lib/kvm_util.c    | 47 +++++++++++++++----
 .../selftests/kvm/lib/perf_test_util.c        |  2 +-
 .../testing/selftests/kvm/memslot_perf_test.c |  2 +-
 5 files changed, 45 insertions(+), 15 deletions(-)

-- 
2.25.1