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From: David Hildenbrand <david@redhat.com>
To: qemu-devel@nongnu.org
Cc: Paolo Bonzini <pbonzini@redhat.com>,
	kvm@vger.kernel.org, david@redhat.com
Subject: [PATCH RFC 0/6] QEMU: kvm: cleanup kvm_slot handling
Date: Wed,  9 Aug 2017 15:33:40 +0200	[thread overview]
Message-ID: <20170809133346.30271-1-david@redhat.com> (raw)

If I am not missing something important here, we can heavily simplify
the kvm_slot code. Flatview will make sure that we don't have to deal
with overlapping slots. E.g. when a memory section is resized, we are
first notified about the removal and then about the new memory section.

So basically, we can directly always map one memory section to one
kvm slot (if the fixed up size is > 0).

Only very briefly tested. Will do some more testing if we agree that this
is the right thing to do.

David Hildenbrand (6):
  kvm: require JOIN_MEMORY_REGIONS_WORKS
  kvm: factor out alignment of memory section
  kvm: use start + size for memory ranges
  kvm: we never have overlapping slots in kvm_set_phys_mem()
  kvm: kvm_log_start/stop are only called with known sections
  kvm: kvm_log_sync() is only called with known memory sections

 accel/kvm/kvm-all.c | 276 +++++++++++++++++-----------------------------------
 1 file changed, 89 insertions(+), 187 deletions(-)

-- 
2.9.4

             reply	other threads:[~2017-08-09 13:33 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-09 13:33 David Hildenbrand [this message]
2017-08-09 13:33 ` [PATCH RFC 1/6] kvm: require JOIN_MEMORY_REGIONS_WORKS David Hildenbrand
2017-08-09 13:33 ` [PATCH RFC 2/6] kvm: factor out alignment of memory section David Hildenbrand
2017-08-09 13:33 ` [PATCH RFC 3/6] kvm: use start + size for memory ranges David Hildenbrand
2017-08-09 13:33 ` [PATCH RFC 4/6] kvm: we never have overlapping slots in kvm_set_phys_mem() David Hildenbrand
2017-08-09 13:33 ` [PATCH RFC 5/6] kvm: kvm_log_start/stop are only called with known sections David Hildenbrand
2017-08-09 13:33 ` [PATCH RFC 6/6] kvm: kvm_log_sync() is only called with known memory sections David Hildenbrand
2017-08-09 16:49 ` [PATCH RFC 0/6] QEMU: kvm: cleanup kvm_slot handling Paolo Bonzini

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