From: Peter Gonda <pgonda@google.com>
To: kvm@vger.kernel.org
Cc: Peter Gonda <pgonda@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <seanjc@google.com>,
David Rientjes <rientjes@google.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
Brijesh Singh <brijesh.singh@amd.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] KVM, SEV: Refactor out function for unregistering encrypted regions
Date: Mon, 21 Jun 2021 09:31:16 -0700 [thread overview]
Message-ID: <20210621163118.1040170-2-pgonda@google.com> (raw)
In-Reply-To: <20210621163118.1040170-1-pgonda@google.com>
Factor out helper function for freeing the encrypted region list.
Signed-off-by: Peter Gonda <pgonda@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Wanpeng Li <wanpengli@tencent.com>
Cc: Jim Mattson <jmattson@google.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: kvm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/x86/kvm/svm/sev.c | 26 +++++++++++++++++---------
1 file changed, 17 insertions(+), 9 deletions(-)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 46e339c84998..5af46ff6ec48 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -1767,11 +1767,25 @@ int svm_vm_copy_asid_from(struct kvm *kvm, unsigned int source_fd)
return ret;
}
+static void __unregister_region_list_locked(struct kvm *kvm,
+ struct list_head *mem_regions)
+{
+ struct enc_region *pos, *q;
+
+ lockdep_assert_held(&kvm->lock);
+
+ if (list_empty(mem_regions))
+ return;
+
+ list_for_each_entry_safe(pos, q, mem_regions, list) {
+ __unregister_enc_region_locked(kvm, pos);
+ cond_resched();
+ }
+}
+
void sev_vm_destroy(struct kvm *kvm)
{
struct kvm_sev_info *sev = &to_kvm_svm(kvm)->sev_info;
- struct list_head *head = &sev->regions_list;
- struct list_head *pos, *q;
if (!sev_guest(kvm))
return;
@@ -1795,13 +1809,7 @@ void sev_vm_destroy(struct kvm *kvm)
* if userspace was terminated before unregistering the memory regions
* then lets unpin all the registered memory.
*/
- if (!list_empty(head)) {
- list_for_each_safe(pos, q, head) {
- __unregister_enc_region_locked(kvm,
- list_entry(pos, struct enc_region, list));
- cond_resched();
- }
- }
+ __unregister_region_list_locked(kvm, &sev->regions_list);
mutex_unlock(&kvm->lock);
--
2.32.0.288.g62a8d224e6-goog
next prev parent reply other threads:[~2021-06-21 16:59 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-21 16:31 [PATCH 0/3] Add AMD SEV and SEV-ES local migration support Peter Gonda
2021-06-21 16:31 ` Peter Gonda [this message]
2021-07-12 20:05 ` [PATCH 1/3] KVM, SEV: Refactor out function for unregistering encrypted regions Brijesh Singh
2021-07-13 21:40 ` Sean Christopherson
2021-07-13 23:18 ` Marc Orr
2021-06-21 16:31 ` [PATCH 2/3] KVM, SEV: Add support for SEV local migration Peter Gonda
2021-07-12 21:09 ` Brijesh Singh
2021-07-13 20:12 ` Peter Gonda
2021-07-13 22:12 ` Sean Christopherson
2021-07-13 23:24 ` Marc Orr
2021-06-21 16:31 ` [PATCH 3/3] KVM, SEV: Add support for SEV-ES " Peter Gonda
2021-07-13 18:41 ` Brijesh Singh
2021-07-13 22:21 ` Sean Christopherson
2021-07-13 23:25 ` Marc Orr
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20210621163118.1040170-2-pgonda@google.com \
--to=pgonda@google.com \
--cc=bp@alien8.de \
--cc=brijesh.singh@amd.com \
--cc=dgilbert@redhat.com \
--cc=hpa@zytor.com \
--cc=jmattson@google.com \
--cc=joro@8bytes.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@redhat.com \
--cc=pbonzini@redhat.com \
--cc=rientjes@google.com \
--cc=seanjc@google.com \
--cc=tglx@linutronix.de \
--cc=vkuznets@redhat.com \
--cc=wanpengli@tencent.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.