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From: Sean Christopherson <seanjc@google.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
	Sean Christopherson <seanjc@google.com>,
	Ben Gardon <bgardon@google.com>,
	Yanan Wang <wangyanan55@huawei.com>,
	Andrew Jones <drjones@redhat.com>, Peter Xu <peterx@redhat.com>,
	Aaron Lewis <aaronlewis@google.com>
Subject: [PATCH 03/15] KVM: selftests: Align HVA for HugeTLB-backed memslots
Date: Wed, 10 Feb 2021 15:06:13 -0800	[thread overview]
Message-ID: <20210210230625.550939-4-seanjc@google.com> (raw)
In-Reply-To: <20210210230625.550939-1-seanjc@google.com>

Align the HVA for HugeTLB memslots, not just THP memslots.  Add an
assert so any future backing types are forced to assess whether or not
they need to be aligned.

Cc: Ben Gardon <bgardon@google.com>
Cc: Yanan Wang <wangyanan55@huawei.com>
Cc: Andrew Jones <drjones@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Aaron Lewis <aaronlewis@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
---
 tools/testing/selftests/kvm/lib/kvm_util.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c
index 584167c6dbc7..deaeb47b5a6d 100644
--- a/tools/testing/selftests/kvm/lib/kvm_util.c
+++ b/tools/testing/selftests/kvm/lib/kvm_util.c
@@ -731,8 +731,11 @@ void vm_userspace_mem_region_add(struct kvm_vm *vm,
 	alignment = 1;
 #endif
 
-	if (src_type == VM_MEM_SRC_ANONYMOUS_THP)
+	if (src_type == VM_MEM_SRC_ANONYMOUS_THP ||
+	    src_type == VM_MEM_SRC_ANONYMOUS_HUGETLB)
 		alignment = max(huge_page_size, alignment);
+	else
+		ASSERT_EQ(src_type, VM_MEM_SRC_ANONYMOUS);
 
 	/* Add enough memory to align up if necessary */
 	if (alignment > 1)
-- 
2.30.0.478.g8a0d178c01-goog


  parent reply	other threads:[~2021-02-10 23:08 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-10 23:06 [PATCH 00/15] VM: selftests: Hugepage fixes and cleanups Sean Christopherson
2021-02-10 23:06 ` [PATCH 01/15] KVM: selftests: Explicitly state indicies for vm_guest_mode_params array Sean Christopherson
2021-02-11  0:50   ` Ben Gardon
2021-02-10 23:06 ` [PATCH 02/15] KVM: selftests: Expose align() helpers to tests Sean Christopherson
2021-02-11  0:49   ` Ben Gardon
2021-02-10 23:06 ` Sean Christopherson [this message]
2021-02-11  0:52   ` [PATCH 03/15] KVM: selftests: Align HVA for HugeTLB-backed memslots Ben Gardon
2021-02-25  7:40   ` wangyanan (Y)
2021-03-13  0:17     ` Sean Christopherson
2021-02-10 23:06 ` [PATCH 04/15] KVM: selftests: Force stronger HVA alignment (1gb) for hugepages Sean Christopherson
2021-02-25  7:57   ` wangyanan (Y)
2021-03-13  0:26     ` Sean Christopherson
2021-02-10 23:06 ` [PATCH 05/15] KVM: selftests: Require GPA to be aligned when backed by hugepages Sean Christopherson
2021-02-11  1:01   ` Ben Gardon
2021-02-10 23:06 ` [PATCH 06/15] KVM: selftests: Use shorthand local var to access struct perf_tests_args Sean Christopherson
2021-02-11  1:09   ` Ben Gardon
2021-02-10 23:06 ` [PATCH 07/15] KVM: selftests: Capture per-vCPU GPA in perf_test_vcpu_args Sean Christopherson
2021-02-11  1:24   ` Ben Gardon
2021-02-10 23:06 ` [PATCH 08/15] KVM: selftests: Use perf util's per-vCPU GPA/pages in demand paging test Sean Christopherson
2021-02-11  1:23   ` Ben Gardon
2021-02-10 23:06 ` [PATCH 09/15] KVM: selftests: Move per-VM GPA into perf_test_args Sean Christopherson
2021-02-11  1:22   ` Ben Gardon
2021-02-11  1:56     ` Sean Christopherson
2021-02-11 13:12       ` Paolo Bonzini
2021-02-11 15:57         ` Sean Christopherson
2021-02-11 17:33           ` Ben Gardon
2021-02-10 23:06 ` [PATCH 10/15] KVM: selftests: Remove perf_test_args.host_page_size Sean Christopherson
2021-02-11  1:26   ` Ben Gardon
2021-02-10 23:06 ` [PATCH 11/15] KVM: selftests: Create VM with adjusted number of guest pages for perf tests Sean Christopherson
2021-02-11  1:32   ` Ben Gardon
2021-02-10 23:06 ` [PATCH 12/15] KVM: selftests: Fill per-vCPU struct during "perf_test" VM creation Sean Christopherson
2021-02-10 23:06 ` [PATCH 13/15] KVM: selftests: Sync perf_test_args to guest during " Sean Christopherson
2021-02-10 23:06 ` [PATCH 14/15] KVM: selftests: Track size of per-VM memslot in perf_test_args Sean Christopherson
2021-02-10 23:06 ` [PATCH 15/15] KVM: selftests: Get rid of gorilla math in memslots modification test Sean Christopherson
2021-02-11 11:58 ` [PATCH 00/15] VM: selftests: Hugepage fixes and cleanups Andrew Jones

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