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From: Ben Gardon <bgardon@google.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: Cannon Matthews <cannonmatthews@google.com>,
	Paolo Bonzini <pbonzini@redhat.com>, Peter Xu <peterx@redhat.com>,
	Sean Christopherson <sean.j.christopherson@intel.com>,
	Peter Shier <pshier@google.com>,
	Peter Feiner <pfeiner@google.com>,
	Junaid Shahid <junaids@google.com>,
	Jim Mattson <jmattson@google.com>,
	Yulei Zhang <yulei.kernel@gmail.com>,
	Wanpeng Li <kernellwp@gmail.com>,
	Vitaly Kuznetsov <vkuznets@redhat.com>,
	Xiao Guangrong <xiaoguangrong.eric@gmail.com>,
	Ben Gardon <bgardon@google.com>
Subject: [PATCH 06/22] kvm: mmu: Make address space ID a property of memslots
Date: Fri, 25 Sep 2020 14:22:46 -0700	[thread overview]
Message-ID: <20200925212302.3979661-7-bgardon@google.com> (raw)
In-Reply-To: <20200925212302.3979661-1-bgardon@google.com>

Save address space ID as a field in each memslot so that functions that
do not use rmaps (which implicitly encode the id) can handle multiple
address spaces correctly.

Tested by running kvm-unit-tests and KVM selftests on an Intel Haswell
machine. This series introduced no new failures.

This series can be viewed in Gerrit at:
	https://linux-review.googlesource.com/c/virt/kvm/kvm/+/2538

Signed-off-by: Ben Gardon <bgardon@google.com>
---
 include/linux/kvm_host.h | 1 +
 virt/kvm/kvm_main.c      | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 05e3c2fb3ef78..a460bc712a81c 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -345,6 +345,7 @@ struct kvm_memory_slot {
 	struct kvm_arch_memory_slot arch;
 	unsigned long userspace_addr;
 	u32 flags;
+	int as_id;
 	short id;
 };
 
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index cf88233b819a0..f9c80351c9efd 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1318,6 +1318,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	new.npages = mem->memory_size >> PAGE_SHIFT;
 	new.flags = mem->flags;
 	new.userspace_addr = mem->userspace_addr;
+	new.as_id = as_id;
 
 	if (new.npages > KVM_MEM_MAX_NR_PAGES)
 		return -EINVAL;
-- 
2.28.0.709.gb0816b6eb0-goog


  parent reply	other threads:[~2020-09-25 21:23 UTC|newest]

Thread overview: 111+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-25 21:22 [PATCH 00/22] Introduce the TDP MMU Ben Gardon
2020-09-25 21:22 ` [PATCH 01/22] kvm: mmu: Separate making SPTEs from set_spte Ben Gardon
2020-09-30  4:55   ` Sean Christopherson
2020-09-30 23:03     ` Ben Gardon
2020-09-25 21:22 ` [PATCH 02/22] kvm: mmu: Introduce tdp_iter Ben Gardon
2020-09-26  0:04   ` Paolo Bonzini
2020-09-30  5:06     ` Sean Christopherson
2020-09-26  0:54   ` Paolo Bonzini
2020-09-30  5:08   ` Sean Christopherson
2020-09-30  5:24   ` Sean Christopherson
2020-09-30  6:24     ` Paolo Bonzini
2020-09-30 23:20   ` Eric van Tassell
2020-09-30 23:34     ` Paolo Bonzini
2020-10-01  0:07       ` Sean Christopherson
2020-09-25 21:22 ` [PATCH 03/22] kvm: mmu: Init / Uninit the TDP MMU Ben Gardon
2020-09-26  0:06   ` Paolo Bonzini
2020-09-30  5:34   ` Sean Christopherson
2020-09-30 18:36     ` Ben Gardon
2020-09-30 16:57   ` Sean Christopherson
2020-09-30 17:39     ` Paolo Bonzini
2020-09-30 18:42       ` Ben Gardon
2020-09-25 21:22 ` [PATCH 04/22] kvm: mmu: Allocate and free TDP MMU roots Ben Gardon
2020-09-30  6:06   ` Sean Christopherson
2020-09-30  6:26     ` Paolo Bonzini
2020-09-30 15:38       ` Sean Christopherson
2020-10-12 22:59     ` Ben Gardon
2020-10-12 23:59       ` Sean Christopherson
2020-09-25 21:22 ` [PATCH 05/22] kvm: mmu: Add functions to handle changed TDP SPTEs Ben Gardon
2020-09-26  0:39   ` Paolo Bonzini
2020-09-28 17:23     ` Paolo Bonzini
2020-09-25 21:22 ` Ben Gardon [this message]
2020-09-30  6:10   ` [PATCH 06/22] kvm: mmu: Make address space ID a property of memslots Sean Christopherson
2020-09-30 23:11     ` Ben Gardon
2020-09-25 21:22 ` [PATCH 07/22] kvm: mmu: Support zapping SPTEs in the TDP MMU Ben Gardon
2020-09-26  0:14   ` Paolo Bonzini
2020-09-30  6:15   ` Sean Christopherson
2020-09-30  6:28     ` Paolo Bonzini
2020-09-25 21:22 ` [PATCH 08/22] kvm: mmu: Separate making non-leaf sptes from link_shadow_page Ben Gardon
2020-09-25 21:22 ` [PATCH 09/22] kvm: mmu: Remove disallowed_hugepage_adjust shadow_walk_iterator arg Ben Gardon
2020-09-30 16:19   ` Sean Christopherson
2020-09-25 21:22 ` [PATCH 10/22] kvm: mmu: Add TDP MMU PF handler Ben Gardon
2020-09-26  0:24   ` Paolo Bonzini
2020-09-30 16:37   ` Sean Christopherson
2020-09-30 16:55     ` Paolo Bonzini
2020-09-30 17:37     ` Paolo Bonzini
2020-10-06 22:35       ` Ben Gardon
2020-10-06 22:33     ` Ben Gardon
2020-10-07 20:55       ` Sean Christopherson
2020-09-25 21:22 ` [PATCH 11/22] kvm: mmu: Factor out allocating a new tdp_mmu_page Ben Gardon
2020-09-26  0:22   ` Paolo Bonzini
2020-09-30 18:53     ` Ben Gardon
2020-09-25 21:22 ` [PATCH 12/22] kvm: mmu: Allocate struct kvm_mmu_pages for all pages in TDP MMU Ben Gardon
2020-09-25 21:22 ` [PATCH 13/22] kvm: mmu: Support invalidate range MMU notifier for " Ben Gardon
2020-09-30 17:03   ` Sean Christopherson
2020-09-30 23:15     ` Ben Gardon
2020-09-30 23:24       ` Sean Christopherson
2020-09-30 23:27         ` Ben Gardon
2020-09-25 21:22 ` [PATCH 14/22] kvm: mmu: Add access tracking for tdp_mmu Ben Gardon
2020-09-26  0:32   ` Paolo Bonzini
2020-09-30 17:48   ` Sean Christopherson
2020-10-06 23:38     ` Ben Gardon
2020-09-25 21:22 ` [PATCH 15/22] kvm: mmu: Support changed pte notifier in tdp MMU Ben Gardon
2020-09-26  0:33   ` Paolo Bonzini
2020-09-28 15:11   ` Paolo Bonzini
2020-10-07 16:53     ` Ben Gardon
2020-10-07 17:18       ` Paolo Bonzini
2020-10-07 17:30         ` Ben Gardon
2020-10-07 17:54           ` Paolo Bonzini
2020-10-09 10:59   ` Dan Carpenter
2020-10-09 10:59     ` Dan Carpenter
2020-09-25 21:22 ` [PATCH 16/22] kvm: mmu: Add dirty logging handler for changed sptes Ben Gardon
2020-09-26  0:45   ` Paolo Bonzini
2020-09-25 21:22 ` [PATCH 17/22] kvm: mmu: Support dirty logging for the TDP MMU Ben Gardon
2020-09-26  1:04   ` Paolo Bonzini
2020-10-08 18:27     ` Ben Gardon
2020-09-29 15:07   ` Paolo Bonzini
2020-09-30 18:04   ` Sean Christopherson
2020-09-30 18:08     ` Paolo Bonzini
2020-09-25 21:22 ` [PATCH 18/22] kvm: mmu: Support disabling dirty logging for the tdp MMU Ben Gardon
2020-09-26  1:09   ` Paolo Bonzini
2020-10-07 16:30     ` Ben Gardon
2020-10-07 17:21       ` Paolo Bonzini
2020-10-07 17:28         ` Ben Gardon
2020-10-07 17:53           ` Paolo Bonzini
2020-09-25 21:22 ` [PATCH 19/22] kvm: mmu: Support write protection for nesting in " Ben Gardon
2020-09-30 18:06   ` Sean Christopherson
2020-09-25 21:23 ` [PATCH 20/22] kvm: mmu: NX largepage recovery for TDP MMU Ben Gardon
2020-09-26  1:14   ` Paolo Bonzini
2020-09-30 22:23     ` Ben Gardon
2020-09-29 18:24   ` Paolo Bonzini
2020-09-30 18:15   ` Sean Christopherson
2020-09-30 19:56     ` Paolo Bonzini
2020-09-30 22:33       ` Ben Gardon
2020-09-30 22:27     ` Ben Gardon
2020-10-09 11:03   ` Dan Carpenter
2020-10-09 11:03     ` Dan Carpenter
2020-09-25 21:23 ` [PATCH 21/22] kvm: mmu: Support MMIO in the " Ben Gardon
2020-09-30 18:19   ` Sean Christopherson
2020-10-09 11:43   ` Dan Carpenter
2020-10-09 11:43     ` Dan Carpenter
2020-09-25 21:23 ` [PATCH 22/22] kvm: mmu: Don't clear write flooding count for direct roots Ben Gardon
2020-09-26  1:25   ` Paolo Bonzini
2020-10-05 22:48     ` Ben Gardon
2020-10-05 23:44       ` Sean Christopherson
2020-10-06 16:19         ` Ben Gardon
2020-09-26  1:14 ` [PATCH 00/22] Introduce the TDP MMU Paolo Bonzini
2020-09-28 17:31 ` Paolo Bonzini
2020-09-29 17:40   ` Ben Gardon
2020-09-29 18:10     ` Paolo Bonzini
2020-09-30  6:19 ` Sean Christopherson
2020-09-30  6:30   ` Paolo Bonzini

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