From: Paolo Bonzini <pbonzini@redhat.com>
To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org
Cc: maz@kernel.org, kvmarm@lists.cs.columbia.edu
Subject: [PATCH] KVM: ARM: count remote TLB flushes
Date: Tue, 27 Jul 2021 12:32:51 +0200 [thread overview]
Message-ID: <20210727103251.16561-1-pbonzini@redhat.com> (raw)
KVM/ARM has an architecture-specific implementation of
kvm_flush_remote_tlbs; however, unlike the generic one,
it does not count the flushes in kvm->stat.remote_tlb_flush,
so that it inexorably remained stuck to zero.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/arm64/kvm/mmu.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index c10207fed2f3..6cf16b43bfcc 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -81,6 +81,7 @@ static bool memslot_is_logging(struct kvm_memory_slot *memslot)
void kvm_flush_remote_tlbs(struct kvm *kvm)
{
kvm_call_hyp(__kvm_tlb_flush_vmid, &kvm->arch.mmu);
+ ++kvm->stat.generic.remote_tlb_flush;
}
static bool kvm_is_device_pfn(unsigned long pfn)
--
2.31.1
next reply other threads:[~2021-07-27 10:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-27 10:32 Paolo Bonzini [this message]
2021-07-28 19:02 ` [PATCH] KVM: ARM: count remote TLB flushes Oliver Upton
2021-08-02 13:45 ` Marc Zyngier
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=20210727103251.16561-1-pbonzini@redhat.com \
--to=pbonzini@redhat.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-kernel@vger.kernel.org \
--cc=maz@kernel.org \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).